General
- Target SystemUpdate.exe
- Size 63.2MB
- Sample260502-eash3sgy9t
- SHA256 14e2b532a326add7cbdf8e259fd0fbd40f81d25fd0b838023820f057d54b9471
- MD5 44432e0246e1b915dbc3ca464df1e6e5
- SHA1 86febf3decc6ded3e97ef64b0f75dffedf739ee1
- SHA512 2594e6ce8822d82655c6a62e9d87aae7c816bf6d16781adc6824055d43d414abc96f6869d00fddf14d0daf7070da5ddac426abfcf6f818bf5bc9e413934d5006
- SSDEEP 1572864:fiAQIHCkHa9zAYxhDEWkKvNNxL6QSdJXeqNSpdeU:PCkHa9sYxxEWkKl6QSXKpdeU
- TLSH T10FE7DF0773E60095E9B7D2388AA74507D773B8674731CADF329D06152FABAD09A3E720
- MD5 SHA1 SHA512 SSDEEP TLSH
Static task
static1
Behavioral task
behavioral1
Sample
SystemUpdate.exe
Resource
win10v2004-20260130-en
Behavioral task
behavioral2
Sample
SystemUpdate.exe
Resource
win11-20260130-en
Malware Config
Targets
-
- Target SystemUpdate.exe
- Size 63.2MB
- SHA256 14e2b532a326add7cbdf8e259fd0fbd40f81d25fd0b838023820f057d54b9471
- MD5 44432e0246e1b915dbc3ca464df1e6e5
- SHA1 86febf3decc6ded3e97ef64b0f75dffedf739ee1
- SHA512 2594e6ce8822d82655c6a62e9d87aae7c816bf6d16781adc6824055d43d414abc96f6869d00fddf14d0daf7070da5ddac426abfcf6f818bf5bc9e413934d5006
- SSDEEP 1572864:fiAQIHCkHa9zAYxhDEWkKvNNxL6QSdJXeqNSpdeU:PCkHa9sYxxEWkKl6QSXKpdeU
- TLSH T10FE7DF0773E60095E9B7D2388AA74507D773B8674731CADF329D06152FABAD09A3E720
- MD5 SHA1 SHA512 SSDEEP TLSH
-
Windows security bypass
-
Checks computer location settings
Looks up country code configured in the registry, likely geofence.
-
Executes dropped EXE
-
Loads dropped DLL
-
Adds Run key to start application
-
Contacts third-party web service commonly abused for C2
Legitimate web (hosting) services can be abused by malware authors to host malware or C2s.
-
Looks up external IP address via web service
Uses a legitimate IP lookup service to find the infected system's external IP.
-
Obfuscated Files or Information: Command Obfuscation
Adversaries may obfuscate content during command execution to impede detection.
-
Drops file in System32 directory
MITRE ATT&CK Enterprise v16
Execution
Command and Scripting Interpreter
2PowerShell
2Scheduled Task/Job
1Scheduled Task
1Persistence
Boot or Logon Autostart Execution
1Registry Run Keys / Startup Folder
1Scheduled Task/Job
1Scheduled Task
1Privilege Escalation
Boot or Logon Autostart Execution
1Registry Run Keys / Startup Folder
1Scheduled Task/Job
1Scheduled Task
1Defense Evasion
Impair Defenses
1Disable or Modify Tools
1Modify Registry
2Obfuscated Files or Information
1Command Obfuscation
1Subvert Trust Controls
1SIP and Trust Provider Hijacking
1Credential Access
Credentials from Password Stores
1Credentials from Web Browsers
1Unsecured Credentials
1Credentials In Files
1