29efa6bc4ae21e58eb91ada9655565713f5ecdc1a0f032f76a1b2f6b9fcdba05

Analysis

max time kernel
148s
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
12/06/2024, 16:28

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General

Target
a154fd05d7b16e39b2f8f4ee70cc76c3_JaffaCakes118.exe
Size 355KB
Sample240612-ty1xpavgpl
SHA256 29efa6bc4ae21e58eb91ada9655565713f5ecdc1a0f032f76a1b2f6b9fcdba05
MD5 a154fd05d7b16e39b2f8f4ee70cc76c3
SHA1 c2502d0aacdcc41f9833b9d7d2e67e003d168209
SHA512 3f05f84af8507f8b554e2ad2b8f147ec4d5da0ab4b329eb6c0a7894655af14b42fb596c49a455c2ee642bc9f08f33f50c09e4bdf03d71f35d340da30212a0cc0
SSDEEP 6144:V3EmWPDNND9yRPzLq+YXFqaZiMLic9kzVd7EAC4TSs9EiS:6mWhND9yJz+b1FcMLmp2ATTSsdS
MD5 SHA1 SHA512 SSDEEP

Score

10^/10

persistence

Malware Config

Signatures

Modifies WinLogon for persistence 2 TTPs 1 IoCs

persistence

Winlogon Helper DLL

T1547.004

Modify Registry

T1112

description	ioc	Process
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Winlogon\userinit = "C:\\Windows\\system32\\userinit.exe,C:\\Windows\\apppatch\\svchost.exe,"	svchost.exe

Executes dropped EXE 1 IoCs

pid	Process
2716	svchost.exe

Modifies WinLogon 2 TTPs 2 IoCs

persistence

Winlogon Helper DLL

T1547.004

Modify Registry

T1112

description	ioc	Process
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Winlogon\26e95bdf = "ùmM\x15öA6\x10ÝÉîÛ²—\n8ž‘ê¦Á\x01ì÷5š\x16Lw1\nÙª\nYW\a!\x12\x19š\x1fºj‚±:\x12\x0fZÊÇÒÑÒQß\a\x0fÉ²ùIzqBâÏYyŠQÙò\x7fï)ïÊÿ‰_\u0081±wùš\x01¡¿ïaÒÙ\x12/\x1a—Ò±Â\x0f9ï9ñÒú:\x1a\u008fg‚×Q\x1aÑ/O’×/šz'é·aJš\x02O‡ºqj\x12²Ç7)RÿaŸºoÚ‡bÉrJïÇÇÿ_'ç¹\x01A§BÑAÇÊAºšyÿç\a\x12ªÂŸÊgBšaÏÙA¡RÊ©\x12\x0fgÉ\aR_:BJ\x11šA‘ÿ\a¹jÒ\x1fJ¿?·¹Oÿ§G‘\"\x17\x01úÿ·\x1f¿w\"\x1f)©aÿ±i‘7¿wg‘\aÙ7\tz\x02Qé’‘\x1f"	svchost.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Winlogon\26e95bdf = "ùmM\x15öA6\x10ÝÉîÛ²—\n8ž‘ê¦Á\x01ì÷5š\x16Lw1\nÙª\nYW\a!\x12\x19š\x1fºj‚±:\x12\x0fZÊÇÒÑÒQß\a\x0fÉ²ùIzqBâÏYyŠQÙò\x7fï)ïÊÿ‰_\u0081±wùš\x01¡¿ïaÒÙ\x12/\x1a—Ò±Â\x0f9ï9ñÒú:\x1a\u008fg‚×Q\x1aÑ/O’×/šz'é·aJš\x02O‡ºqj\x12²Ç7)RÿaŸºoÚ‡bÉrJïÇÇÿ_'ç¹\x01A§BÑAÇÊAºšyÿç\a\x12ªÂŸÊgBšaÏÙA¡RÊ©\x12\x0fgÉ\aR_:BJ\x11šA‘ÿ\a¹jÒ\x1fJ¿?·¹Oÿ§G‘\"\x17\x01úÿ·\x1f¿w\"\x1f)©aÿ±i‘7¿wg‘\aÙ7\tz\x02Qé’‘\x1f"	a154fd05d7b16e39b2f8f4ee70cc76c3_JaffaCakes118.exe

Drops file in Windows directory 2 IoCs

description	ioc	Process
File created	C:\Windows\apppatch\svchost.exe	a154fd05d7b16e39b2f8f4ee70cc76c3_JaffaCakes118.exe
File opened for modification	C:\Windows\apppatch\svchost.exe	a154fd05d7b16e39b2f8f4ee70cc76c3_JaffaCakes118.exe

Suspicious behavior: EnumeratesProcesses 18 IoCs

pid	Process
3984	a154fd05d7b16e39b2f8f4ee70cc76c3_JaffaCakes118.exe
3984	a154fd05d7b16e39b2f8f4ee70cc76c3_JaffaCakes118.exe
3984	a154fd05d7b16e39b2f8f4ee70cc76c3_JaffaCakes118.exe
3984	a154fd05d7b16e39b2f8f4ee70cc76c3_JaffaCakes118.exe
3984	a154fd05d7b16e39b2f8f4ee70cc76c3_JaffaCakes118.exe
3984	a154fd05d7b16e39b2f8f4ee70cc76c3_JaffaCakes118.exe
3984	a154fd05d7b16e39b2f8f4ee70cc76c3_JaffaCakes118.exe
3984	a154fd05d7b16e39b2f8f4ee70cc76c3_JaffaCakes118.exe
2716	svchost.exe
2716	svchost.exe
2716	svchost.exe
2716	svchost.exe
2716	svchost.exe
2716	svchost.exe
2716	svchost.exe
2716	svchost.exe
2716	svchost.exe
2716	svchost.exe

Suspicious behavior: RenamesItself 1 IoCs

pid	Process
3984	a154fd05d7b16e39b2f8f4ee70cc76c3_JaffaCakes118.exe

Suspicious use of WriteProcessMemory 3 IoCs

description	pid	Process	procid_target
PID 3984 wrote to memory of 2716	3984	a154fd05d7b16e39b2f8f4ee70cc76c3_JaffaCakes118.exe	82
PID 3984 wrote to memory of 2716	3984	a154fd05d7b16e39b2f8f4ee70cc76c3_JaffaCakes118.exe	82
PID 3984 wrote to memory of 2716	3984	a154fd05d7b16e39b2f8f4ee70cc76c3_JaffaCakes118.exe	82

C:\Users\Admin\AppData\Local\Temp\a154fd05d7b16e39b2f8f4ee70cc76c3_JaffaCakes118.exe
"C:\Users\Admin\AppData\Local\Temp\a154fd05d7b16e39b2f8f4ee70cc76c3_JaffaCakes118.exe"
1⤵
- Modifies WinLogon
- Drops file in Windows directory
- Suspicious behavior: EnumeratesProcesses
- Suspicious behavior: RenamesItself
- Suspicious use of WriteProcessMemory
PID:3984
- C:\Windows\apppatch\svchost.exe
  "C:\Windows\apppatch\svchost.exe"
  2⤵
  - Modifies WinLogon for persistence
  - Executes dropped EXE
  - Modifies WinLogon
  - Suspicious behavior: EnumeratesProcesses
  PID:2716

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Boot or Logon Autostart Execution

T1547

Winlogon Helper DLL

T1547.004

Privilege Escalation

Boot or Logon Autostart Execution

T1547

Winlogon Helper DLL

T1547.004

Defense Evasion

Modify Registry

T1112

Credential Access

Discovery

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Replay Monitor

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Downloads

svchost.exe

Path C:\Windows\apppatch\svchost.exe
Size 355KB
SHA256 70eda2a490f3db7fd1cba2ce476513306dbae0b9ca54be0ea833439f5edc8b57
MD5 6e83cb66f4d88e506ca83bf867536e2a
SHA1 50be211666b1ed7e8b1b2f25618e8a861639525a
SHA512 99435c7b27634048da12a19b978b72d6ff03bd4287450f856ae81bf9610c6e698a33849eafb936bf03f14f030c31117a6cadf0ff6b7dfb6347c0c8cbac0375c2
SSDEEP 6144:e3EmWPDNND9yRPzLq+YXFqaZiMLic9kzVd7EAC4TSs9EiS:5mWhND9yJz+b1FcMLmp2ATTSsdS
MD5 SHA1 SHA512 SSDEEP

Submit Download

memory/2716-10-0x0000000002940000-0x00000000029E8000-memory.dmp

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memory/2716-16-0x0000000002B30000-0x0000000002BE6000-memory.dmp

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memory/2716-14-0x0000000002B30000-0x0000000002BE6000-memory.dmp

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memory/2716-13-0x0000000002B30000-0x0000000002BE6000-memory.dmp

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memory/3984-8-0x0000000000400000-0x000000000045F000-memory.dmp

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