Trusted Design

The Shade Encryptor: a Double Threat

概要

A family of ransomware Trojans that encrypts files and adds the extensions “.xtbl” and “.ytbl” emerged in late 2014/early 2015, and quickly established itself among the top three most widespread encryptors in Russia (along with Trojan-Ransom.Win32.Cryakl and Trojan-Ransom.BAT.Scatter). This threat has been assigned the verdict Trojan-Ransom.Win32.Shade according to Kaspersky Lab’s classification. The original name given to the encryptor by its creator is not known; other security vendors detect it as Trojan.Encoder.858, Ransom:Win32/Troldesh. There has been no appreciable evolution of this Trojan over time – only the format of the encrypted file’s name, the C&C server addresses and the RSA keys have been changing. There are two main methods used to deliver the malware to victims’ computers: spam messages and exploit kits (in particular, NuclearEK).

Created: 2026-02-23

Indicators

類似Pulses

このPulseに関連する脅威アクター (事実ベース)

Darkhotel

Score: 5.75
Matched TTPs:
  • T1027.013 - Encrypted/Encoded File
  • T1140 - Deobfuscate/Decode Files or Information
  • T1124 - System Time Discovery
MITREへのリンク →

APT28

Score: 19.12
Matched TTPs:
  • T1027.013 - Encrypted/Encoded File
  • T1140 - Deobfuscate/Decode Files or Information
  • T1048.002 - Exfiltration Over Asymmetric Encrypted Non-C2 Protocol
  • T1598 - Phishing for Information
  • T1498 - Network Denial of Service
  • T1211 - Exploitation for Defense Evasion
MITREへのリンク →

Leviathan

Score: 9.35
Matched TTPs:
  • T1027.013 - Encrypted/Encoded File
  • T1140 - Deobfuscate/Decode Files or Information
  • T1027.003 - Steganography
  • T1027.015 - Compression
MITREへのリンク →

Sidewinder

Score: 4.19
Matched TTPs:
  • T1027.013 - Encrypted/Encoded File
  • T1124 - System Time Discovery
MITREへのリンク →

APT39

Score: 3.16
Matched TTPs:
  • T1027.013 - Encrypted/Encoded File
  • T1140 - Deobfuscate/Decode Files or Information
MITREへのリンク →

Lazarus Group

Score: 25.14
Matched TTPs:
  • T1027.013 - Encrypted/Encoded File
  • T1560.003 - Archive via Custom Method
  • T1587.001 - Malware
  • T1140 - Deobfuscate/Decode Files or Information
  • T1036.004 - Masquerade Task or Service
  • T1562.001 - Disable or Modify Tools
  • T1036.003 - Rename Legitimate Utilities
  • T1027.007 - Dynamic API Resolution
  • T1680 - Local Storage Discovery
  • T1124 - System Time Discovery
MITREへのリンク →

Saint Bear

Score: 5.36
Matched TTPs:
  • T1027.013 - Encrypted/Encoded File
  • T1608.001 - Upload Malware
  • T1562.001 - Disable or Modify Tools
MITREへのリンク →

BITTER

Score: 5.66
Matched TTPs:
  • T1027.013 - Encrypted/Encoded File
  • T1608.001 - Upload Malware
  • T1036.004 - Masquerade Task or Service
MITREへのリンク →

TA505

Score: 13.12
Matched TTPs:
  • T1027.013 - Encrypted/Encoded File
  • T1140 - Deobfuscate/Decode Files or Information
  • T1608.001 - Upload Malware
  • T1553.005 - Mark-of-the-Web Bypass
  • T1562.001 - Disable or Modify Tools
  • T1486 - Data Encrypted for Impact
MITREへのリンク →

Higaisa

Score: 13.83
Matched TTPs:
  • T1027.013 - Encrypted/Encoded File
  • T1140 - Deobfuscate/Decode Files or Information
  • T1036.004 - Masquerade Task or Service
  • T1680 - Local Storage Discovery
  • T1124 - System Time Discovery
  • T1027.015 - Compression
MITREへのリンク →

APT19

Score: 3.16
Matched TTPs:
  • T1027.013 - Encrypted/Encoded File
  • T1140 - Deobfuscate/Decode Files or Information
MITREへのリンク →

Fox Kitten

Score: 3.69
Matched TTPs:
  • T1027.013 - Encrypted/Encoded File
  • T1036.004 - Masquerade Task or Service
MITREへのリンク →

Threat Group-3390

Score: 8.29
Matched TTPs:
  • T1027.013 - Encrypted/Encoded File
  • T1140 - Deobfuscate/Decode Files or Information
  • T1608.001 - Upload Malware
  • T1027.015 - Compression
MITREへのリンク →

TA2541

Score: 11.26
Matched TTPs:
  • T1027.013 - Encrypted/Encoded File
  • T1608.001 - Upload Malware
  • T1562.001 - Disable or Modify Tools
  • T1573.002 - Asymmetric Cryptography
  • T1027.015 - Compression
MITREへのリンク →

Malteiro

Score: 3.16
Matched TTPs:
  • T1027.013 - Encrypted/Encoded File
  • T1140 - Deobfuscate/Decode Files or Information
MITREへのリンク →

Magic Hound

Score: 7.83
Matched TTPs:
  • T1027.013 - Encrypted/Encoded File
  • T1036.004 - Masquerade Task or Service
  • T1562.001 - Disable or Modify Tools
  • T1486 - Data Encrypted for Impact
MITREへのリンク →

Storm-1811

Score: 9.35
Matched TTPs:
  • T1027.013 - Encrypted/Encoded File
  • T1140 - Deobfuscate/Decode Files or Information
  • T1048.002 - Exfiltration Over Asymmetric Encrypted Non-C2 Protocol
  • T1486 - Data Encrypted for Impact
MITREへのリンク →

Tropic Trooper

Score: 11.77
Matched TTPs:
  • T1027.013 - Encrypted/Encoded File
  • T1140 - Deobfuscate/Decode Files or Information
  • T1573.002 - Asymmetric Cryptography
  • T1027.003 - Steganography
  • T1680 - Local Storage Discovery
MITREへのリンク →

Mofang

Score: 4.75
Matched TTPs:
  • T1027.013 - Encrypted/Encoded File
  • T1027.015 - Compression
MITREへのリンク →

Contagious Interview

Score: 11.30
Matched TTPs:
  • T1027.013 - Encrypted/Encoded File
  • T1587.001 - Malware
  • T1608.001 - Upload Malware
  • T1480 - Execution Guardrails
  • T1562.001 - Disable or Modify Tools
MITREへのリンク →

menuPass

Score: 6.45
Matched TTPs:
  • T1027.013 - Encrypted/Encoded File
  • T1140 - Deobfuscate/Decode Files or Information
  • T1036.003 - Rename Legitimate Utilities
MITREへのリンク →

Moses Staff

Score: 3.69
Matched TTPs:
  • T1027.013 - Encrypted/Encoded File
  • T1587.001 - Malware
MITREへのリンク →

TeamTNT

Score: 11.86
Matched TTPs:
  • T1027.013 - Encrypted/Encoded File
  • T1587.001 - Malware
  • T1140 - Deobfuscate/Decode Files or Information
  • T1608.001 - Upload Malware
  • T1562.001 - Disable or Modify Tools
  • T1680 - Local Storage Discovery
MITREへのリンク →

Putter Panda

Score: 3.39
Matched TTPs:
  • T1027.013 - Encrypted/Encoded File
  • T1562.001 - Disable or Modify Tools
MITREへのリンク →

OilRig

Score: 9.98
Matched TTPs:
  • T1027.013 - Encrypted/Encoded File
  • T1587.001 - Malware
  • T1140 - Deobfuscate/Decode Files or Information
  • T1608.001 - Upload Malware
  • T1573.002 - Asymmetric Cryptography
MITREへのリンク →

APT32

Score: 8.95
Matched TTPs:
  • T1027.013 - Encrypted/Encoded File
  • T1608.001 - Upload Malware
  • T1036.004 - Masquerade Task or Service
  • T1036.003 - Rename Legitimate Utilities
MITREへのリンク →

Moonstone Sleet

Score: 13.01
Matched TTPs:
  • T1027.013 - Encrypted/Encoded File
  • T1587.001 - Malware
  • T1140 - Deobfuscate/Decode Files or Information
  • T1608.001 - Upload Malware
  • T1486 - Data Encrypted for Impact
  • T1598 - Phishing for Information
MITREへのリンク →

FIN6

Score: 9.79
Matched TTPs:
  • T1560.003 - Archive via Custom Method
  • T1036.004 - Masquerade Task or Service
  • T1562.001 - Disable or Modify Tools
  • T1573.002 - Asymmetric Cryptography
MITREへのリンク →

CopyKittens

Score: 3.15
Matched TTPs:
  • T1560.003 - Archive via Custom Method
MITREへのリンク →

Mustang Panda

Score: 17.46
Matched TTPs:
  • T1560.003 - Archive via Custom Method
  • T1587.001 - Malware
  • T1140 - Deobfuscate/Decode Files or Information
  • T1608.001 - Upload Malware
  • T1176.002 - IDE Extensions
  • T1027.007 - Dynamic API Resolution
MITREへのリンク →

Kimsuky

Score: 23.09
Matched TTPs:
  • T1560.003 - Archive via Custom Method
  • T1587.001 - Malware
  • T1140 - Deobfuscate/Decode Files or Information
  • T1608.001 - Upload Malware
  • T1036.004 - Masquerade Task or Service
  • T1562.001 - Disable or Modify Tools
  • T1598 - Phishing for Information
  • T1680 - Local Storage Discovery
  • T1588.005 - Exploits
MITREへのリンク →

UNC3886

Score: 11.73
Matched TTPs:
  • T1560.003 - Archive via Custom Method
  • T1587.001 - Malware
  • T1036.004 - Masquerade Task or Service
  • T1562.001 - Disable or Modify Tools
  • T1124 - System Time Discovery
MITREへのリンク →

Lotus Blossom

Score: 3.15
Matched TTPs:
  • T1560.003 - Archive via Custom Method
MITREへのリンク →

Mustard Tempest

Score: 6.51
Matched TTPs:
  • T1583.008 - Malvertising
  • T1608.001 - Upload Malware
MITREへのリンク →

FIN13

Score: 9.60
Matched TTPs:
  • T1587.001 - Malware
  • T1140 - Deobfuscate/Decode Files or Information
  • T1087 - Account Discovery
  • T1036.004 - Masquerade Task or Service
MITREへのリンク →

Indrik Spider

Score: 6.23
Matched TTPs:
  • T1587.001 - Malware
  • T1562.001 - Disable or Modify Tools
  • T1486 - Data Encrypted for Impact
MITREへのリンク →

LuminousMoth

Score: 4.07
Matched TTPs:
  • T1587.001 - Malware
  • T1608.001 - Upload Malware
MITREへのリンク →

Sandworm Team

Score: 7.98
Matched TTPs:
  • T1587.001 - Malware
  • T1140 - Deobfuscate/Decode Files or Information
  • T1608.001 - Upload Malware
  • T1486 - Data Encrypted for Impact
MITREへのリンク →

APT29

Score: 5.94
Matched TTPs:
  • T1587.001 - Malware
  • T1553.005 - Mark-of-the-Web Bypass
MITREへのリンク →

Play

Score: 3.89
Matched TTPs:
  • T1587.001 - Malware
  • T1562.001 - Disable or Modify Tools
MITREへのリンク →

RedCurl

Score: 4.84
Matched TTPs:
  • T1587.001 - Malware
  • T1573.002 - Asymmetric Cryptography
MITREへのリンク →

Turla

Score: 8.05
Matched TTPs:
  • T1587.001 - Malware
  • T1140 - Deobfuscate/Decode Files or Information
  • T1562.001 - Disable or Modify Tools
  • T1124 - System Time Discovery
MITREへのリンク →

Ke3chang

Score: 3.66
Matched TTPs:
  • T1587.001 - Malware
  • T1140 - Deobfuscate/Decode Files or Information
MITREへのリンク →

FIN7

Score: 12.66
Matched TTPs:
  • T1587.001 - Malware
  • T1140 - Deobfuscate/Decode Files or Information
  • T1608.001 - Upload Malware
  • T1036.004 - Masquerade Task or Service
  • T1486 - Data Encrypted for Impact
  • T1124 - System Time Discovery
MITREへのリンク →

BRONZE BUTLER

Score: 8.99
Matched TTPs:
  • T1140 - Deobfuscate/Decode Files or Information
  • T1562.001 - Disable or Modify Tools
  • T1027.003 - Steganography
  • T1124 - System Time Discovery
MITREへのリンク →

Gorgon Group

Score: 3.36
Matched TTPs:
  • T1140 - Deobfuscate/Decode Files or Information
  • T1562.001 - Disable or Modify Tools
MITREへのリンク →

Agrius

Score: 3.36
Matched TTPs:
  • T1140 - Deobfuscate/Decode Files or Information
  • T1562.001 - Disable or Modify Tools
MITREへのリンク →

APT38

Score: 17.37
Matched TTPs:
  • T1140 - Deobfuscate/Decode Files or Information
  • T1553.005 - Mark-of-the-Web Bypass
  • T1562.001 - Disable or Modify Tools
  • T1486 - Data Encrypted for Impact
  • T1036.003 - Rename Legitimate Utilities
  • T1036.006 - Space after Filename
MITREへのリンク →

Volt Typhoon

Score: 6.99
Matched TTPs:
  • T1140 - Deobfuscate/Decode Files or Information
  • T1680 - Local Storage Discovery
  • T1124 - System Time Discovery
MITREへのリンク →

Molerats

Score: 4.72
Matched TTPs:
  • T1140 - Deobfuscate/Decode Files or Information
  • T1027.015 - Compression
MITREへのリンク →

Earth Lusca

Score: 6.57
Matched TTPs:
  • T1140 - Deobfuscate/Decode Files or Information
  • T1608.001 - Upload Malware
  • T1027.003 - Steganography
MITREへのリンク →

ZIRCONIUM

Score: 9.69
Matched TTPs:
  • T1140 - Deobfuscate/Decode Files or Information
  • T1036.004 - Masquerade Task or Service
  • T1598 - Phishing for Information
  • T1124 - System Time Discovery
MITREへのリンク →

MuddyWater

Score: 10.02
Matched TTPs:
  • T1140 - Deobfuscate/Decode Files or Information
  • T1562.001 - Disable or Modify Tools
  • T1027.003 - Steganography
  • T1027.004 - Compile After Delivery
MITREへのリンク →

Gamaredon Group

Score: 15.96
Matched TTPs:
  • T1140 - Deobfuscate/Decode Files or Information
  • T1608.001 - Upload Malware
  • T1480 - Execution Guardrails
  • T1562.001 - Disable or Modify Tools
  • T1027.004 - Compile After Delivery
  • T1027.015 - Compression
MITREへのリンク →

Winter Vivern

Score: 3.66
Matched TTPs:
  • T1140 - Deobfuscate/Decode Files or Information
  • T1036.004 - Masquerade Task or Service
MITREへのリンク →

BlackByte

Score: 11.52
Matched TTPs:
  • T1140 - Deobfuscate/Decode Files or Information
  • T1608.001 - Upload Malware
  • T1480 - Execution Guardrails
  • T1562.001 - Disable or Modify Tools
  • T1486 - Data Encrypted for Impact
MITREへのリンク →

Rocke

Score: 6.99
Matched TTPs:
  • T1140 - Deobfuscate/Decode Files or Information
  • T1562.001 - Disable or Modify Tools
  • T1027.004 - Compile After Delivery
MITREへのリンク →

APT42

Score: 4.72
Matched TTPs:
  • T1608.001 - Upload Malware
  • T1573.002 - Asymmetric Cryptography
MITREへのリンク →

Aquatic Panda

Score: 7.74
Matched TTPs:
  • T1087 - Account Discovery
  • T1036.004 - Masquerade Task or Service
  • T1562.001 - Disable or Modify Tools
MITREへのリンク →

Scattered Spider

Score: 11.42
Matched TTPs:
  • T1087 - Account Discovery
  • T1562.001 - Disable or Modify Tools
  • T1486 - Data Encrypted for Impact
  • T1598 - Phishing for Information
MITREへのリンク →

Wizard Spider

Score: 3.89
Matched TTPs:
  • T1036.004 - Masquerade Task or Service
  • T1562.001 - Disable or Modify Tools
MITREへのリンク →

Storm-0501

Score: 4.44
Matched TTPs:
  • T1036.004 - Masquerade Task or Service
  • T1486 - Data Encrypted for Impact
MITREへのリンク →

APT41

Score: 4.44
Matched TTPs:
  • T1036.004 - Masquerade Task or Service
  • T1486 - Data Encrypted for Impact
MITREへのリンク →

CURIUM

Score: 6.44
Matched TTPs:
  • T1048.002 - Exfiltration Over Asymmetric Encrypted Non-C2 Protocol
  • T1124 - System Time Discovery
MITREへのリンク →

INC Ransom

Score: 4.14
Matched TTPs:
  • T1562.001 - Disable or Modify Tools
  • T1486 - Data Encrypted for Impact
MITREへのリンク →

Medusa Group

Score: 15.96
Matched TTPs:
  • T1562.001 - Disable or Modify Tools
  • T1486 - Data Encrypted for Impact
  • T1573.002 - Asymmetric Cryptography
  • T1650 - Acquire Access
  • T1218.014 - MMC
MITREへのリンク →

Velvet Ant

Score: 8.68
Matched TTPs:
  • T1562.001 - Disable or Modify Tools
  • T1573.002 - Asymmetric Cryptography
  • T1211 - Exploitation for Defense Evasion
MITREへのリンク →

Akira

Score: 4.14
Matched TTPs:
  • T1562.001 - Disable or Modify Tools
  • T1486 - Data Encrypted for Impact
MITREへのリンク →

Ember Bear

Score: 5.93
Matched TTPs:
  • T1562.001 - Disable or Modify Tools
  • T1588.005 - Exploits
MITREへのリンク →

FIN8

Score: 5.09
Matched TTPs:
  • T1486 - Data Encrypted for Impact
  • T1573.002 - Asymmetric Cryptography
MITREへのリンク →

Daggerfly

Score: 3.29
Matched TTPs:
  • T1036.003 - Rename Legitimate Utilities
MITREへのリンク →

GALLIUM

Score: 3.29
Matched TTPs:
  • T1036.003 - Rename Legitimate Utilities
MITREへのリンク →

APT37

Score: 3.03
Matched TTPs:
  • T1027.003 - Steganography
MITREへのリンク →

TA551

Score: 3.03
Matched TTPs:
  • T1027.003 - Steganography
MITREへのリンク →

Andariel

Score: 3.03
Matched TTPs:
  • T1027.003 - Steganography
MITREへのリンク →

Sea Turtle

Score: 3.62
Matched TTPs:
  • T1027.004 - Compile After Delivery
MITREへのリンク →

Axiom

Score: 4.54
Matched TTPs:
  • T1001.002 - Steganography
MITREへのリンク →

Chimera

Score: 5.43
Matched TTPs:
  • T1680 - Local Storage Discovery
  • T1124 - System Time Discovery
MITREへのリンク →

このPulseに関連する脅威アクター (推論ベース)

Lazarus Group

Score: 0.80
Matched TTPs:
  • T1036.003 - Rename Legitimate Utilities
  • T1027.007 - Dynamic API Resolution
  • T1587.001 - Malware
  • T1560.003 - Archive via Custom Method
  • T1140 - Deobfuscate/Decode Files or Information
  • T1036.004 - Masquerade Task or Service
  • T1124 - System Time Discovery
  • T1680 - Local Storage Discovery
  • T1562.001 - Disable or Modify Tools
  • T1027.013 - Encrypted/Encoded File
MITREへのリンク →

Kimsuky

Score: 0.74
Matched TTPs:
  • T1587.001 - Malware
  • T1560.003 - Archive via Custom Method
  • T1608.001 - Upload Malware
  • T1140 - Deobfuscate/Decode Files or Information
  • T1036.004 - Masquerade Task or Service
  • T1598 - Phishing for Information
  • T1680 - Local Storage Discovery
  • T1588.005 - Exploits
  • T1562.001 - Disable or Modify Tools
MITREへのリンク →

APT28

Score: 0.67
Matched TTPs:
  • T1048.002 - Exfiltration Over Asymmetric Encrypted Non-C2 Protocol
  • T1498 - Network Denial of Service
  • T1211 - Exploitation for Defense Evasion
  • T1140 - Deobfuscate/Decode Files or Information
  • T1598 - Phishing for Information
  • T1027.013 - Encrypted/Encoded File
MITREへのリンク →

Medusa Group

Score: 0.59
Matched TTPs:
  • T1650 - Acquire Access
  • T1486 - Data Encrypted for Impact
  • T1573.002 - Asymmetric Cryptography
  • T1218.014 - MMC
  • T1562.001 - Disable or Modify Tools
MITREへのリンク →

APT38

Score: 0.59
Matched TTPs:
  • T1036.003 - Rename Legitimate Utilities
  • T1140 - Deobfuscate/Decode Files or Information
  • T1486 - Data Encrypted for Impact
  • T1553.005 - Mark-of-the-Web Bypass
  • T1036.006 - Space after Filename
  • T1562.001 - Disable or Modify Tools
MITREへのリンク →

Gamaredon Group

Score: 0.57
Matched TTPs:
  • T1027.004 - Compile After Delivery
  • T1608.001 - Upload Malware
  • T1140 - Deobfuscate/Decode Files or Information
  • T1480 - Execution Guardrails
  • T1027.015 - Compression
  • T1562.001 - Disable or Modify Tools
MITREへのリンク →

Mustang Panda

Score: 0.57
Matched TTPs:
  • T1027.007 - Dynamic API Resolution
  • T1587.001 - Malware
  • T1560.003 - Archive via Custom Method
  • T1608.001 - Upload Malware
  • T1140 - Deobfuscate/Decode Files or Information
  • T1176.002 - IDE Extensions
MITREへのリンク →

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