General
- Target Client.exe
- Size 563KB
- Sample260629-vq2ppaav3w
- SHA256 58d04076178ebe27c623e94c5a4f4abc8220298d81a5567d1932077d2f09104a
- MD5 ef8023a93b62b21a473dc5ca32239d2d
- SHA1 6fc9666411c5b78bdc4651709ddcc16f36006b81
- SHA512 27182c4556fa5f1fd0302d69a3409f3b07060d2c4bc66cb849c84a5b5865221be91d7c0aca96a2cc86bc6e7dbca168e2febe06247f4dd6d97507459852fcbc3b
- SSDEEP 12288:ojZ/BsJRS1dZdiBBPVle8N3gbxgagpFf:ojZXPZdiB1gbC
- TLSH T1C5C4B21CFE91E806CD1A3EB3CFEA14049B7124C1AE2192463159AFFD87653B258E767C
- MD5 SHA1 SHA512 SSDEEP TLSH
Behavioral task
behavioral1
Sample
Client.exe
Resource
win10v2004-20260513-en
16 signatures
150 seconds
Behavioral task
behavioral2
Sample
Client.exe
Resource
win11ltsc2024-20260629-en
15 signatures
150 seconds
Malware Config
Extracted
Family
-
sheetrat
Campaign
-
Sheet_zibkixdoirzepayu
C2
-
portbuddy.dev:42628
Targets
-
- Target Client.exe
- Size 563KB
- SHA256 58d04076178ebe27c623e94c5a4f4abc8220298d81a5567d1932077d2f09104a
- MD5 ef8023a93b62b21a473dc5ca32239d2d
- SHA1 6fc9666411c5b78bdc4651709ddcc16f36006b81
- SHA512 27182c4556fa5f1fd0302d69a3409f3b07060d2c4bc66cb849c84a5b5865221be91d7c0aca96a2cc86bc6e7dbca168e2febe06247f4dd6d97507459852fcbc3b
- SSDEEP 12288:ojZ/BsJRS1dZdiBBPVle8N3gbxgagpFf:ojZXPZdiB1gbC
- TLSH T1C5C4B21CFE91E806CD1A3EB3CFEA14049B7124C1AE2192463159AFFD87653B258E767C
- MD5 SHA1 SHA512 SSDEEP TLSH
-
Detects Sheetrat obfuscated V1.8 and higher
Sheetrat aka NonEuclid RAT is a trojan written in C#.
-
Modifies WinLogon for persistence
-
Event Triggered Execution: AppInit DLLs
Adversaries may establish persistence and/or elevate privileges by executing malicious content triggered by AppInit DLLs loaded into processes.
-
Checks computer location settings
Looks up country code configured in the registry, likely geofence.
-
Executes dropped EXE
-
Loads dropped DLL
-
Looks up external IP address via web service
Uses a legitimate IP lookup service to find the infected system's external IP.
MITRE ATT&CK Enterprise v16
Persistence
Boot or Logon Autostart Execution
1Winlogon Helper DLL
1Event Triggered Execution
1AppInit DLLs
1Scheduled Task/Job
1Scheduled Task
1