Analysis
- max time kernel
150s - max time network
150s - platform
windows10-2004_x64 - resource
win10v2004-20240508-en - resource tags
arch:x64arch:x86image:win10v2004-20240508-enlocale:en-usos:windows10-2004-x64system - submitted
10/05/2024, 21:58
Behavioral task
behavioral1
Sample
313bd936b937cb3fe6e1117995c472d0_JaffaCakes118.exe
Resource
win7-20231129-en
windows7-x64
11 signatures
150 seconds
Behavioral task
behavioral2
Sample
313bd936b937cb3fe6e1117995c472d0_JaffaCakes118.exe
Resource
win10v2004-20240508-en
windows10-2004-x64
10 signatures
150 seconds
General
- Target 313bd936b937cb3fe6e1117995c472d0_JaffaCakes118.exe
- Size 37KB
- Sample240510-1vmzzseh49
- SHA256 ec7befcf764dc46b238b198a0b46d7dcf4294cfea2b4b334a7f811aa7dd5c89e
- MD5 313bd936b937cb3fe6e1117995c472d0
- SHA1 434298ef2561f6442b2fdcb6c68ac746e5df39f9
- SHA512 c034c2ec44fa825476435e5a3f09ed9ef0f481a3ffef5379f288e40af772784ae1738cb51e1c6b5e047d89c3561f971367b853cb3d1a450890f4a24be8c31abd
- SSDEEP 384:ULgSKMizdjjnBhFbJ8ycPfpXxtwqKVZrAF+rMRTyN/0L+EcoinblneHQM3epzXIV:bSgjlLJfcPfpP9K7rM+rMRa8Num1Vt
- MD5 SHA1 SHA512 SSDEEP
Score
8/10
Malware Config
Signatures
- Modifies Windows Firewall 2 TTPs 1 IoCs
pid Process 4444 netsh.exe - Checks computer location settings 2 TTPs 1 IoCs
Looks up country code configured in the registry, likely geofence.
description ioc Process Key value queried \REGISTRY\USER\S-1-5-21-1337824034-2731376981-3755436523-1000\Control Panel\International\Geo\Nation 313bd936b937cb3fe6e1117995c472d0_JaffaCakes118.exe - Drops startup file 2 IoCs
description ioc Process File created C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\e2abdc1ab493a3c52b870dda63b728e1.exe winlogon.exe File opened for modification C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\e2abdc1ab493a3c52b870dda63b728e1.exe winlogon.exe - Executes dropped EXE 1 IoCs
pid Process 1736 winlogon.exe - Adds Run key to start application 2 TTPs 2 IoCs
description ioc Process Set value (str) \REGISTRY\USER\S-1-5-21-1337824034-2731376981-3755436523-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\e2abdc1ab493a3c52b870dda63b728e1 = "\"C:\\Users\\Admin\\AppData\\Roaming\\winlogon.exe\" .." winlogon.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Windows\CurrentVersion\Run\e2abdc1ab493a3c52b870dda63b728e1 = "\"C:\\Users\\Admin\\AppData\\Roaming\\winlogon.exe\" .." winlogon.exe - Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).
- Suspicious behavior: EnumeratesProcesses 64 IoCs
pid Process 1736 winlogon.exe 1736 winlogon.exe 1736 winlogon.exe 1736 winlogon.exe 1736 winlogon.exe 1736 winlogon.exe 1736 winlogon.exe 1736 winlogon.exe 1736 winlogon.exe 1736 winlogon.exe 1736 winlogon.exe 1736 winlogon.exe 1736 winlogon.exe 1736 winlogon.exe 1736 winlogon.exe 1736 winlogon.exe 1736 winlogon.exe 1736 winlogon.exe 1736 winlogon.exe 1736 winlogon.exe 1736 winlogon.exe 1736 winlogon.exe 1736 winlogon.exe 1736 winlogon.exe 1736 winlogon.exe 1736 winlogon.exe 1736 winlogon.exe 1736 winlogon.exe 1736 winlogon.exe 1736 winlogon.exe 1736 winlogon.exe 1736 winlogon.exe 1736 winlogon.exe 1736 winlogon.exe 1736 winlogon.exe 1736 winlogon.exe 1736 winlogon.exe 1736 winlogon.exe 1736 winlogon.exe 1736 winlogon.exe 1736 winlogon.exe 1736 winlogon.exe 1736 winlogon.exe 1736 winlogon.exe 1736 winlogon.exe 1736 winlogon.exe 1736 winlogon.exe 1736 winlogon.exe 1736 winlogon.exe 1736 winlogon.exe 1736 winlogon.exe 1736 winlogon.exe 1736 winlogon.exe 1736 winlogon.exe 1736 winlogon.exe 1736 winlogon.exe 1736 winlogon.exe 1736 winlogon.exe 1736 winlogon.exe 1736 winlogon.exe 1736 winlogon.exe 1736 winlogon.exe 1736 winlogon.exe 1736 winlogon.exe - Suspicious behavior: GetForegroundWindowSpam 1 IoCs
pid Process 1736 winlogon.exe - Suspicious use of AdjustPrivilegeToken 35 IoCs
description pid Process Token: SeDebugPrivilege 1736 winlogon.exe Token: 33 1736 winlogon.exe Token: SeIncBasePriorityPrivilege 1736 winlogon.exe Token: 33 1736 winlogon.exe Token: SeIncBasePriorityPrivilege 1736 winlogon.exe Token: 33 1736 winlogon.exe Token: SeIncBasePriorityPrivilege 1736 winlogon.exe Token: 33 1736 winlogon.exe Token: SeIncBasePriorityPrivilege 1736 winlogon.exe Token: 33 1736 winlogon.exe Token: SeIncBasePriorityPrivilege 1736 winlogon.exe Token: 33 1736 winlogon.exe Token: SeIncBasePriorityPrivilege 1736 winlogon.exe Token: 33 1736 winlogon.exe Token: SeIncBasePriorityPrivilege 1736 winlogon.exe Token: 33 1736 winlogon.exe Token: SeIncBasePriorityPrivilege 1736 winlogon.exe Token: 33 1736 winlogon.exe Token: SeIncBasePriorityPrivilege 1736 winlogon.exe Token: 33 1736 winlogon.exe Token: SeIncBasePriorityPrivilege 1736 winlogon.exe Token: 33 1736 winlogon.exe Token: SeIncBasePriorityPrivilege 1736 winlogon.exe Token: 33 1736 winlogon.exe Token: SeIncBasePriorityPrivilege 1736 winlogon.exe Token: 33 1736 winlogon.exe Token: SeIncBasePriorityPrivilege 1736 winlogon.exe Token: 33 1736 winlogon.exe Token: SeIncBasePriorityPrivilege 1736 winlogon.exe Token: 33 1736 winlogon.exe Token: SeIncBasePriorityPrivilege 1736 winlogon.exe Token: 33 1736 winlogon.exe Token: SeIncBasePriorityPrivilege 1736 winlogon.exe Token: 33 1736 winlogon.exe Token: SeIncBasePriorityPrivilege 1736 winlogon.exe - Suspicious use of WriteProcessMemory 6 IoCs
description pid Process procid_target PID 3516 wrote to memory of 1736 3516 313bd936b937cb3fe6e1117995c472d0_JaffaCakes118.exe 88 PID 3516 wrote to memory of 1736 3516 313bd936b937cb3fe6e1117995c472d0_JaffaCakes118.exe 88 PID 3516 wrote to memory of 1736 3516 313bd936b937cb3fe6e1117995c472d0_JaffaCakes118.exe 88 PID 1736 wrote to memory of 4444 1736 winlogon.exe 89 PID 1736 wrote to memory of 4444 1736 winlogon.exe 89 PID 1736 wrote to memory of 4444 1736 winlogon.exe 89
Processes
-
C:\Users\Admin\AppData\Local\Temp\313bd936b937cb3fe6e1117995c472d0_JaffaCakes118.exe"C:\Users\Admin\AppData\Local\Temp\313bd936b937cb3fe6e1117995c472d0_JaffaCakes118.exe"1⤵
- Checks computer location settings
- Suspicious use of WriteProcessMemory
PID:3516 -
C:\Users\Admin\AppData\Roaming\winlogon.exe"C:\Users\Admin\AppData\Roaming\winlogon.exe"2⤵
- Drops startup file
- Executes dropped EXE
- Adds Run key to start application
- Suspicious behavior: EnumeratesProcesses
- Suspicious behavior: GetForegroundWindowSpam
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:1736 -
C:\Windows\SysWOW64\netsh.exenetsh firewall add allowedprogram "C:\Users\Admin\AppData\Roaming\winlogon.exe" "winlogon.exe" ENABLE3⤵
- Modifies Windows Firewall
PID:4444
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Network
MITRE ATT&CK Enterprise v15
Persistence
Boot or Logon Autostart Execution
1Registry Run Keys / Startup Folder
1Create or Modify System Process
1Windows Service
1Privilege Escalation
Boot or Logon Autostart Execution
1Registry Run Keys / Startup Folder
1Create or Modify System Process
1Windows Service
1Replay Monitor
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Downloads
- Path C:\Users\Admin\AppData\Roaming\winlogon.exe
- Size 37KB
- SHA256 ec7befcf764dc46b238b198a0b46d7dcf4294cfea2b4b334a7f811aa7dd5c89e
- MD5 313bd936b937cb3fe6e1117995c472d0
- SHA1 434298ef2561f6442b2fdcb6c68ac746e5df39f9
- SHA512 c034c2ec44fa825476435e5a3f09ed9ef0f481a3ffef5379f288e40af772784ae1738cb51e1c6b5e047d89c3561f971367b853cb3d1a450890f4a24be8c31abd
- SSDEEP 384:ULgSKMizdjjnBhFbJ8ycPfpXxtwqKVZrAF+rMRTyN/0L+EcoinblneHQM3epzXIV:bSgjlLJfcPfpP9K7rM+rMRa8Num1Vt
- MD5 SHA1 SHA512 SSDEEP