Trusted Design

Spear Phishing Campaign Using “Sign in” Themed Emails Designed to Harvest User Credentials

概要

US-CERT received information from a trusted third-party of a spear phishing campaign using “sign in” themed emails containing malicious links designed to harvest user credentials. According to the trusted third party, suspected intrusion set actors used the "shortme.org" URL shortening service to obfuscate malicious links embedded within emails. The spoofed links appear to be from Yahoo and Gmail email security. The email contains a spoofed unauthorized log-in attempt message to entice the victim to change their password using the embedded link. If successful, the victim will click the link and navigate to the "shortme[.]org" site, hosted at IP address "191.101.31[.]253". The shortened URL would immediately be redirected to a malicious U.S. domain hosted at an unspecified U.S. IP address.

Created: 2026-02-23

Indicators

Indicatorsは見つかっていない。

類似Pulses

このPulseに関連する脅威アクター (事実ベース)

Scattered Spider

Score: 30.26
Matched TTPs:
  • T1666 - Modify Cloud Resource Hierarchy
  • T1566.002 - Spearphishing Link
  • T1019 - System Firmware
  • T1136.002 - Domain Account
  • T1619 - Cloud Storage Object Discovery
  • T1565 - Data Manipulation
  • T1030 - Data Transfer Size Limits
  • T1197 - BITS Jobs
  • T1557.002 - ARP Cache Poisoning
MITREへのリンク →

FIN4

Score: 6.94
Matched TTPs:
  • T1666 - Modify Cloud Resource Hierarchy
  • T1543.003 - Windows Service
  • T1027.018 - Invisible Unicode
MITREへのリンク →

LuminousMoth

Score: 9.11
Matched TTPs:
  • T1543.003 - Windows Service
  • T1136.002 - Domain Account
  • T1584.005 - Botnet
  • T1027.018 - Invisible Unicode
MITREへのリンク →

Kimsuky

Score: 36.56
Matched TTPs:
  • T1543.003 - Windows Service
  • T1566.002 - Spearphishing Link
  • T1024 - Custom Cryptographic Protocol
  • T1183 - Image File Execution Options Injection
  • T1055.014 - VDSO Hijacking
  • T1562.013 - Disable or Modify Network Device Firewall
  • T1565 - Data Manipulation
  • T1030 - Data Transfer Size Limits
  • T1197 - BITS Jobs
  • T1070.009 - Clear Persistence
  • T1027.018 - Invisible Unicode
  • T1008 - Fallback Channels
  • T1053.002 - At
  • T1490 - Inhibit System Recovery
MITREへのリンク →

Sidewinder

Score: 8.89
Matched TTPs:
  • T1543.003 - Windows Service
  • T1566.002 - Spearphishing Link
  • T1657 - Financial Theft
  • T1027.018 - Invisible Unicode
MITREへのリンク →

FIN7

Score: 9.32
Matched TTPs:
  • T1543.003 - Windows Service
  • T1584.005 - Botnet
  • T1027.018 - Invisible Unicode
  • T1490 - Inhibit System Recovery
MITREへのリンク →

Mustard Tempest

Score: 6.09
Matched TTPs:
  • T1543.003 - Windows Service
  • T1027.018 - Invisible Unicode
  • T1053.002 - At
MITREへのリンク →

Sandworm Team

Score: 11.27
Matched TTPs:
  • T1543.003 - Windows Service
  • T1566.002 - Spearphishing Link
  • T1183 - Image File Execution Options Injection
  • T1565 - Data Manipulation
  • T1070.009 - Clear Persistence
  • T1027.018 - Invisible Unicode
MITREへのリンク →

Transparent Tribe

Score: 6.09
Matched TTPs:
  • T1543.003 - Windows Service
  • T1027.018 - Invisible Unicode
  • T1053.002 - At
MITREへのリンク →

Evilnum

Score: 4.19
Matched TTPs:
  • T1543.003 - Windows Service
  • T1070.009 - Clear Persistence
  • T1027.018 - Invisible Unicode
MITREへのリンク →

Mustang Panda

Score: 11.60
Matched TTPs:
  • T1543.003 - Windows Service
  • T1566.002 - Spearphishing Link
  • T1024 - Custom Cryptographic Protocol
  • T1183 - Image File Execution Options Injection
  • T1070.009 - Clear Persistence
  • T1027.018 - Invisible Unicode
MITREへのリンク →

FIN8

Score: 4.19
Matched TTPs:
  • T1543.003 - Windows Service
  • T1070.009 - Clear Persistence
  • T1027.018 - Invisible Unicode
MITREへのリンク →

APT32

Score: 15.50
Matched TTPs:
  • T1543.003 - Windows Service
  • T1566.002 - Spearphishing Link
  • T1592.004 - Client Configurations
  • T1565 - Data Manipulation
  • T1070.009 - Clear Persistence
  • T1027.018 - Invisible Unicode
  • T1490 - Inhibit System Recovery
MITREへのリンク →

APT3

Score: 4.19
Matched TTPs:
  • T1543.003 - Windows Service
  • T1070.009 - Clear Persistence
  • T1027.018 - Invisible Unicode
MITREへのリンク →

APT1

Score: 9.48
Matched TTPs:
  • T1543.003 - Windows Service
  • T1183 - Image File Execution Options Injection
  • T1136.002 - Domain Account
  • T1053.002 - At
MITREへのリンク →

Lazarus Group

Score: 14.11
Matched TTPs:
  • T1543.003 - Windows Service
  • T1070.008 - Clear Mailbox Data
  • T1183 - Image File Execution Options Injection
  • T1565 - Data Manipulation
  • T1070.009 - Clear Persistence
  • T1547.008 - LSASS Driver
MITREへのリンク →

Leviathan

Score: 13.72
Matched TTPs:
  • T1543.003 - Windows Service
  • T1024 - Custom Cryptographic Protocol
  • T1183 - Image File Execution Options Injection
  • T1055.014 - VDSO Hijacking
  • T1565 - Data Manipulation
  • T1027.018 - Invisible Unicode
MITREへのリンク →

ZIRCONIUM

Score: 8.70
Matched TTPs:
  • T1543.003 - Windows Service
  • T1566.002 - Spearphishing Link
  • T1197 - BITS Jobs
  • T1027.018 - Invisible Unicode
MITREへのリンク →

EXOTIC LILY

Score: 9.96
Matched TTPs:
  • T1543.003 - Windows Service
  • T1183 - Image File Execution Options Injection
  • T1565 - Data Manipulation
  • T1027.018 - Invisible Unicode
  • T1547.008 - LSASS Driver
MITREへのリンク →

Magic Hound

Score: 19.75
Matched TTPs:
  • T1543.003 - Windows Service
  • T1566.002 - Spearphishing Link
  • T1024 - Custom Cryptographic Protocol
  • T1183 - Image File Execution Options Injection
  • T1565 - Data Manipulation
  • T1070.009 - Clear Persistence
  • T1027.018 - Invisible Unicode
  • T1547.008 - LSASS Driver
  • T1053.002 - At
MITREへのリンク →

OilRig

Score: 13.00
Matched TTPs:
  • T1543.003 - Windows Service
  • T1024 - Custom Cryptographic Protocol
  • T1556.009 - Conditional Access Policies
  • T1070.009 - Clear Persistence
  • T1027.018 - Invisible Unicode
  • T1547.008 - LSASS Driver
MITREへのリンク →

Windshift

Score: 5.33
Matched TTPs:
  • T1543.003 - Windows Service
  • T1027.018 - Invisible Unicode
  • T1547.008 - LSASS Driver
MITREへのリンク →

Cobalt Group

Score: 4.19
Matched TTPs:
  • T1543.003 - Windows Service
  • T1070.009 - Clear Persistence
  • T1027.018 - Invisible Unicode
MITREへのリンク →

APT29

Score: 20.43
Matched TTPs:
  • T1543.003 - Windows Service
  • T1024 - Custom Cryptographic Protocol
  • T1592.004 - Client Configurations
  • T1218.009 - Regsvcs/Regasm
  • T1070.009 - Clear Persistence
  • T1027.018 - Invisible Unicode
  • T1547.008 - LSASS Driver
  • T1490 - Inhibit System Recovery
MITREへのリンク →

TA2541

Score: 5.27
Matched TTPs:
  • T1543.003 - Windows Service
  • T1136.002 - Domain Account
  • T1027.018 - Invisible Unicode
MITREへのリンク →

Earth Lusca

Score: 9.11
Matched TTPs:
  • T1543.003 - Windows Service
  • T1110.003 - Password Spraying
  • T1136.002 - Domain Account
  • T1027.018 - Invisible Unicode
MITREへのリンク →

RedCurl

Score: 4.19
Matched TTPs:
  • T1543.003 - Windows Service
  • T1070.009 - Clear Persistence
  • T1027.018 - Invisible Unicode
MITREへのリンク →

Storm-1811

Score: 11.54
Matched TTPs:
  • T1543.003 - Windows Service
  • T1486 - Data Encrypted for Impact
  • T1030 - Data Transfer Size Limits
  • T1547.008 - LSASS Driver
MITREへのリンク →

Turla

Score: 11.55
Matched TTPs:
  • T1543.003 - Windows Service
  • T1136.002 - Domain Account
  • T1556.009 - Conditional Access Policies
  • T1027.018 - Invisible Unicode
  • T1490 - Inhibit System Recovery
MITREへのリンク →

Wizard Spider

Score: 10.10
Matched TTPs:
  • T1543.003 - Windows Service
  • T1183 - Image File Execution Options Injection
  • T1556.009 - Conditional Access Policies
  • T1070.009 - Clear Persistence
  • T1027.018 - Invisible Unicode
MITREへのリンク →

TA577

Score: 5.47
Matched TTPs:
  • T1543.003 - Windows Service
  • T1024 - Custom Cryptographic Protocol
  • T1027.018 - Invisible Unicode
MITREへのリンク →

Patchwork

Score: 9.93
Matched TTPs:
  • T1543.003 - Windows Service
  • T1566.002 - Spearphishing Link
  • T1070.009 - Clear Persistence
  • T1027.018 - Invisible Unicode
  • T1008 - Fallback Channels
MITREへのリンク →

TA505

Score: 5.27
Matched TTPs:
  • T1543.003 - Windows Service
  • T1136.002 - Domain Account
  • T1027.018 - Invisible Unicode
MITREへのリンク →

LazyScripter

Score: 5.27
Matched TTPs:
  • T1543.003 - Windows Service
  • T1136.002 - Domain Account
  • T1027.018 - Invisible Unicode
MITREへのリンク →

APT42

Score: 6.77
Matched TTPs:
  • T1543.003 - Windows Service
  • T1183 - Image File Execution Options Injection
  • T1030 - Data Transfer Size Limits
MITREへのリンク →

APT39

Score: 4.19
Matched TTPs:
  • T1543.003 - Windows Service
  • T1070.009 - Clear Persistence
  • T1027.018 - Invisible Unicode
MITREへのリンク →

Silent Librarian

Score: 8.59
Matched TTPs:
  • T1566.002 - Spearphishing Link
  • T1183 - Image File Execution Options Injection
  • T1584.005 - Botnet
MITREへのリンク →

APT28

Score: 24.11
Matched TTPs:
  • T1566.002 - Spearphishing Link
  • T1024 - Custom Cryptographic Protocol
  • T1197 - BITS Jobs
  • T1070.009 - Clear Persistence
  • T1146 - Clear Command History
  • T1027.018 - Invisible Unicode
  • T1055.008 - Ptrace System Calls
  • T1566.003 - Spearphishing via Service
MITREへのリンク →

Star Blizzard

Score: 13.37
Matched TTPs:
  • T1566.002 - Spearphishing Link
  • T1024 - Custom Cryptographic Protocol
  • T1183 - Image File Execution Options Injection
  • T1657 - Financial Theft
  • T1565 - Data Manipulation
MITREへのリンク →

Moonstone Sleet

Score: 13.05
Matched TTPs:
  • T1566.002 - Spearphishing Link
  • T1183 - Image File Execution Options Injection
  • T1565 - Data Manipulation
  • T1197 - BITS Jobs
  • T1547.008 - LSASS Driver
MITREへのリンク →

CURIUM

Score: 9.61
Matched TTPs:
  • T1566.002 - Spearphishing Link
  • T1183 - Image File Execution Options Injection
  • T1565 - Data Manipulation
  • T1547.008 - LSASS Driver
MITREへのリンク →

Dragonfly

Score: 7.46
Matched TTPs:
  • T1566.002 - Spearphishing Link
  • T1657 - Financial Theft
  • T1070.009 - Clear Persistence
MITREへのリンク →

HEXANE

Score: 10.92
Matched TTPs:
  • T1024 - Custom Cryptographic Protocol
  • T1183 - Image File Execution Options Injection
  • T1055.014 - VDSO Hijacking
  • T1565 - Data Manipulation
MITREへのリンク →

LAPSUS$

Score: 20.56
Matched TTPs:
  • T1024 - Custom Cryptographic Protocol
  • T1019 - System Firmware
  • T1136.002 - Domain Account
  • T1619 - Cloud Storage Object Discovery
  • T1030 - Data Transfer Size Limits
  • T1557.002 - ARP Cache Poisoning
MITREへのリンク →

Volt Typhoon

Score: 9.65
Matched TTPs:
  • T1070.008 - Clear Mailbox Data
  • T1584.002 - DNS Server
  • T1070.009 - Clear Persistence
MITREへのリンク →

Medusa Group

Score: 10.55
Matched TTPs:
  • T1183 - Image File Execution Options Injection
  • T1565 - Data Manipulation
  • T1070.009 - Clear Persistence
  • T1094 - Custom Command and Control Protocol
MITREへのリンク →

Contagious Interview

Score: 12.93
Matched TTPs:
  • T1183 - Image File Execution Options Injection
  • T1565 - Data Manipulation
  • T1030 - Data Transfer Size Limits
  • T1070.009 - Clear Persistence
  • T1027.018 - Invisible Unicode
  • T1547.008 - LSASS Driver
MITREへのリンク →

Salt Typhoon

Score: 3.84
Matched TTPs:
  • T1110.003 - Password Spraying
MITREへのリンク →

TeamTNT

Score: 5.23
Matched TTPs:
  • T1110.003 - Password Spraying
  • T1070.009 - Clear Persistence
MITREへのリンク →

Ember Bear

Score: 3.84
Matched TTPs:
  • T1136.002 - Domain Account
  • T1070.009 - Clear Persistence
MITREへのリンク →

Metador

Score: 3.84
Matched TTPs:
  • T1136.002 - Domain Account
  • T1070.009 - Clear Persistence
MITREへのリンク →

Aquatic Panda

Score: 3.84
Matched TTPs:
  • T1136.002 - Domain Account
  • T1070.009 - Clear Persistence
MITREへのリンク →

UNC3886

Score: 3.84
Matched TTPs:
  • T1136.002 - Domain Account
  • T1070.009 - Clear Persistence
MITREへのリンク →

BRONZE BUTLER

Score: 8.51
Matched TTPs:
  • T1592.004 - Client Configurations
  • T1070.009 - Clear Persistence
  • T1008 - Fallback Channels
MITREへのリンク →

SideCopy

Score: 11.04
Matched TTPs:
  • T1657 - Financial Theft
  • T1584.002 - DNS Server
  • T1053.002 - At
MITREへのリンク →

Gamaredon Group

Score: 6.36
Matched TTPs:
  • T1055.014 - VDSO Hijacking
  • T1070.009 - Clear Persistence
  • T1027.018 - Invisible Unicode
MITREへのリンク →

INC Ransom

Score: 4.67
Matched TTPs:
  • T1562.013 - Disable or Modify Network Device Firewall
  • T1070.009 - Clear Persistence
MITREへのリンク →

Sea Turtle

Score: 5.95
Matched TTPs:
  • T1562.013 - Disable or Modify Network Device Firewall
  • T1490 - Inhibit System Recovery
MITREへのリンク →

Axiom

Score: 12.36
Matched TTPs:
  • T1562.013 - Disable or Modify Network Device Firewall
  • T1114.002 - Remote Email Collection
  • T1160 - Launch Daemon
MITREへのリンク →

AppleJeus

Score: 3.29
Matched TTPs:
  • T1562.013 - Disable or Modify Network Device Firewall
MITREへのリンク →

GOLD SOUTHFIELD

Score: 3.29
Matched TTPs:
  • T1562.013 - Disable or Modify Network Device Firewall
MITREへのリンク →

Saint Bear

Score: 4.39
Matched TTPs:
  • T1030 - Data Transfer Size Limits
  • T1027.018 - Invisible Unicode
MITREへのリンク →

APT41

Score: 7.70
Matched TTPs:
  • T1030 - Data Transfer Size Limits
  • T1070.009 - Clear Persistence
  • T1008 - Fallback Channels
MITREへのリンク →

Stealth Falcon

Score: 3.62
Matched TTPs:
  • T1556.009 - Conditional Access Policies
MITREへのリンク →

FIN10

Score: 4.05
Matched TTPs:
  • T1070.009 - Clear Persistence
  • T1490 - Inhibit System Recovery
MITREへのリンク →

Tropic Trooper

Score: 4.05
Matched TTPs:
  • T1070.009 - Clear Persistence
  • T1490 - Inhibit System Recovery
MITREへのリンク →

APT38

Score: 7.28
Matched TTPs:
  • T1070.009 - Clear Persistence
  • T1059.005 - Visual Basic
  • T1027.018 - Invisible Unicode
MITREへのリンク →

Play

Score: 4.05
Matched TTPs:
  • T1070.009 - Clear Persistence
  • T1490 - Inhibit System Recovery
MITREへのリンク →

FIN6

Score: 3.90
Matched TTPs:
  • T1070.009 - Clear Persistence
  • T1547.008 - LSASS Driver
MITREへのリンク →

Rocke

Score: 4.67
Matched TTPs:
  • T1070.009 - Clear Persistence
  • T1008 - Fallback Channels
MITREへのリンク →

Equation

Score: 4.13
Matched TTPs:
  • T1130 - Install Root Certificate
MITREへのリンク →

Strider

Score: 4.13
Matched TTPs:
  • T1130 - Install Root Certificate
MITREへのリンク →

HAFNIUM

Score: 6.80
Matched TTPs:
  • T1055.008 - Ptrace System Calls
  • T1490 - Inhibit System Recovery
MITREへのリンク →

RTM

Score: 3.29
Matched TTPs:
  • T1008 - Fallback Channels
MITREへのリンク →

Velvet Ant

Score: 6.80
Matched TTPs:
  • T1490 - Inhibit System Recovery
  • T1566.003 - Spearphishing via Service
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)

Kimsuky

Score: 0.77
Matched TTPs:
  • T1024 - Custom Cryptographic Protocol
  • T1183 - Image File Execution Options Injection
  • T1053.002 - At
  • T1490 - Inhibit System Recovery
  • T1030 - Data Transfer Size Limits
  • T1566.002 - Spearphishing Link
  • T1543.003 - Windows Service
  • T1055.014 - VDSO Hijacking
  • T1008 - Fallback Channels
  • T1562.013 - Disable or Modify Network Device Firewall
  • T1027.018 - Invisible Unicode
  • T1565 - Data Manipulation
  • T1070.009 - Clear Persistence
  • T1197 - BITS Jobs
MITREへのリンク →

Scattered Spider

Score: 0.66
Matched TTPs:
  • T1557.002 - ARP Cache Poisoning
  • T1019 - System Firmware
  • T1666 - Modify Cloud Resource Hierarchy
  • T1619 - Cloud Storage Object Discovery
  • T1030 - Data Transfer Size Limits
  • T1566.002 - Spearphishing Link
  • T1565 - Data Manipulation
  • T1197 - BITS Jobs
  • T1136.002 - Domain Account
MITREへのリンク →

APT28

Score: 0.56
Matched TTPs:
  • T1024 - Custom Cryptographic Protocol
  • T1146 - Clear Command History
  • T1566.002 - Spearphishing Link
  • T1055.008 - Ptrace System Calls
  • T1566.003 - Spearphishing via Service
  • T1027.018 - Invisible Unicode
  • T1070.009 - Clear Persistence
  • T1197 - BITS Jobs
MITREへのリンク →

Related CVEs

このPulseに見つかったCVEはありません。

Pulse – 脅威アクター グラフ


← Pulse一覧に戻る