Analysis
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max time kernel
150s -
max time network
120s -
platform
windows7_x64 -
resource
win7-20240419-en -
resource tags
arch:x64arch:x86image:win7-20240419-enlocale:en-usos:windows7-x64system -
submitted
28-06-2024 00:11
Static task
static1
Behavioral task
behavioral1
Sample
181283c3e130b102c86e6ef049d0071a_JaffaCakes118.exe
Resource
win7-20240419-en
Behavioral task
behavioral2
Sample
181283c3e130b102c86e6ef049d0071a_JaffaCakes118.exe
Resource
win10v2004-20240508-en
General
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Target
181283c3e130b102c86e6ef049d0071a_JaffaCakes118.exe
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Size
713KB
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MD5
181283c3e130b102c86e6ef049d0071a
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SHA1
e58e8eac541416c306f8edb0b8d9821cc0690bf7
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SHA256
93a3d616794bbc999144bf30e2189c84b8a2b89c3c27cc08151103062a37d259
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SHA512
ebbbf9bed204ca27379a1cac0d1bb8aaaa701bdf0e11b2d0b7d70200aa88173ee113d17fdc6962425b8ac0ea68d684ee534c42956947f9b7c8f42d78c12f6e61
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SSDEEP
12288:+kfeLRmTb7mevlEure1m1+gPhQSVCSLzlwqzmHtc9UTD+eEsjfCh:ucj1vyure1m1+gJQSV1XlJCHtcaumr
Malware Config
Signatures
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Modifies WinLogon for persistence 2 TTPs 1 IoCs
Processes:
winlogon.exedescription ioc process Set value (str) \REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Winlogon\UserInit = "C:\\Windows\\system32\\userinit.exe,C:\\Users\\Admin\\AppData\\Roaming\\Windupdate\\winupdate.exe" winlogon.exe -
Checks BIOS information in registry 2 TTPs 2 IoCs
BIOS information is often read in order to detect sandboxing environments.
Processes:
winlogon.exewinupdate.exedescription ioc process Key value queried \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\SystemBiosDate winlogon.exe Key value queried \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\SystemBiosDate winupdate.exe -
Executes dropped EXE 5 IoCs
Processes:
winlogon.exewinlogon.exeUNTITL~1.EXEwinupdate.exewinupdate.exepid process 3028 winlogon.exe 2384 winlogon.exe 2692 UNTITL~1.EXE 1896 winupdate.exe 2396 winupdate.exe -
Loads dropped DLL 13 IoCs
Processes:
181283c3e130b102c86e6ef049d0071a_JaffaCakes118.exewinlogon.exewinlogon.exewinupdate.exewinupdate.exepid process 2372 181283c3e130b102c86e6ef049d0071a_JaffaCakes118.exe 2372 181283c3e130b102c86e6ef049d0071a_JaffaCakes118.exe 3028 winlogon.exe 2372 181283c3e130b102c86e6ef049d0071a_JaffaCakes118.exe 2372 181283c3e130b102c86e6ef049d0071a_JaffaCakes118.exe 2384 winlogon.exe 1896 winupdate.exe 1896 winupdate.exe 1896 winupdate.exe 1896 winupdate.exe 2396 winupdate.exe 2396 winupdate.exe 2396 winupdate.exe -
Adds Run key to start application 2 TTPs 2 IoCs
Processes:
181283c3e130b102c86e6ef049d0071a_JaffaCakes118.exewinlogon.exedescription ioc process Set value (str) \REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Windows\CurrentVersion\RunOnce\wextract_cleanup0 = "rundll32.exe C:\\Windows\\system32\\advpack.dll,DelNodeRunDLL32 \"C:\\Users\\Admin\\AppData\\Local\\Temp\\IXP000.TMP\\\"" 181283c3e130b102c86e6ef049d0071a_JaffaCakes118.exe Set value (str) \REGISTRY\USER\S-1-5-21-481678230-3773327859-3495911762-1000\Software\Microsoft\Windows\CurrentVersion\Run\winupdate = "C:\\Users\\Admin\\AppData\\Roaming\\Windupdate\\winupdate.exe" winlogon.exe -
Suspicious use of SetThreadContext 2 IoCs
Processes:
winlogon.exewinupdate.exedescription pid process target process PID 3028 set thread context of 2384 3028 winlogon.exe winlogon.exe PID 1896 set thread context of 2396 1896 winupdate.exe winupdate.exe -
Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).
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Checks processor information in registry 2 TTPs 8 IoCs
Processor information is often read in order to detect sandboxing environments.
Processes:
winupdate.exewinlogon.exedescription ioc process Key value queried \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\ProcessorNameString winupdate.exe Key value queried \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\Identifier winupdate.exe Key value queried \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\VendorIdentifier winupdate.exe Key opened \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0 winlogon.exe Key value queried \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\ProcessorNameString winlogon.exe Key value queried \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\Identifier winlogon.exe Key value queried \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\VendorIdentifier winlogon.exe Key opened \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0 winupdate.exe -
Enumerates system info in registry 2 TTPs 2 IoCs
Processes:
winlogon.exewinupdate.exedescription ioc process Key value queried \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\Identifier winlogon.exe Key value queried \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\Identifier winupdate.exe -
Suspicious behavior: GetForegroundWindowSpam 1 IoCs
Processes:
winupdate.exepid process 2396 winupdate.exe -
Suspicious use of AdjustPrivilegeToken 48 IoCs
Processes:
winlogon.exewinlogon.exewinupdate.exewinupdate.exedescription pid process Token: SeDebugPrivilege 3028 winlogon.exe Token: SeIncreaseQuotaPrivilege 2384 winlogon.exe Token: SeSecurityPrivilege 2384 winlogon.exe Token: SeTakeOwnershipPrivilege 2384 winlogon.exe Token: SeLoadDriverPrivilege 2384 winlogon.exe Token: SeSystemProfilePrivilege 2384 winlogon.exe Token: SeSystemtimePrivilege 2384 winlogon.exe Token: SeProfSingleProcessPrivilege 2384 winlogon.exe Token: SeIncBasePriorityPrivilege 2384 winlogon.exe Token: SeCreatePagefilePrivilege 2384 winlogon.exe Token: SeBackupPrivilege 2384 winlogon.exe Token: SeRestorePrivilege 2384 winlogon.exe Token: SeShutdownPrivilege 2384 winlogon.exe Token: SeDebugPrivilege 2384 winlogon.exe Token: SeSystemEnvironmentPrivilege 2384 winlogon.exe Token: SeChangeNotifyPrivilege 2384 winlogon.exe Token: SeRemoteShutdownPrivilege 2384 winlogon.exe Token: SeUndockPrivilege 2384 winlogon.exe Token: SeManageVolumePrivilege 2384 winlogon.exe Token: SeImpersonatePrivilege 2384 winlogon.exe Token: SeCreateGlobalPrivilege 2384 winlogon.exe Token: 33 2384 winlogon.exe Token: 34 2384 winlogon.exe Token: 35 2384 winlogon.exe Token: SeDebugPrivilege 1896 winupdate.exe Token: SeIncreaseQuotaPrivilege 2396 winupdate.exe Token: SeSecurityPrivilege 2396 winupdate.exe Token: SeTakeOwnershipPrivilege 2396 winupdate.exe Token: SeLoadDriverPrivilege 2396 winupdate.exe Token: SeSystemProfilePrivilege 2396 winupdate.exe Token: SeSystemtimePrivilege 2396 winupdate.exe Token: SeProfSingleProcessPrivilege 2396 winupdate.exe Token: SeIncBasePriorityPrivilege 2396 winupdate.exe Token: SeCreatePagefilePrivilege 2396 winupdate.exe Token: SeBackupPrivilege 2396 winupdate.exe Token: SeRestorePrivilege 2396 winupdate.exe Token: SeShutdownPrivilege 2396 winupdate.exe Token: SeDebugPrivilege 2396 winupdate.exe Token: SeSystemEnvironmentPrivilege 2396 winupdate.exe Token: SeChangeNotifyPrivilege 2396 winupdate.exe Token: SeRemoteShutdownPrivilege 2396 winupdate.exe Token: SeUndockPrivilege 2396 winupdate.exe Token: SeManageVolumePrivilege 2396 winupdate.exe Token: SeImpersonatePrivilege 2396 winupdate.exe Token: SeCreateGlobalPrivilege 2396 winupdate.exe Token: 33 2396 winupdate.exe Token: 34 2396 winupdate.exe Token: 35 2396 winupdate.exe -
Suspicious use of SetWindowsHookEx 1 IoCs
Processes:
winupdate.exepid process 2396 winupdate.exe -
Suspicious use of WriteProcessMemory 59 IoCs
Processes:
181283c3e130b102c86e6ef049d0071a_JaffaCakes118.exewinlogon.exewinlogon.exewinupdate.exewinupdate.exedescription pid process target process PID 2372 wrote to memory of 3028 2372 181283c3e130b102c86e6ef049d0071a_JaffaCakes118.exe winlogon.exe PID 2372 wrote to memory of 3028 2372 181283c3e130b102c86e6ef049d0071a_JaffaCakes118.exe winlogon.exe PID 2372 wrote to memory of 3028 2372 181283c3e130b102c86e6ef049d0071a_JaffaCakes118.exe winlogon.exe PID 2372 wrote to memory of 3028 2372 181283c3e130b102c86e6ef049d0071a_JaffaCakes118.exe winlogon.exe PID 3028 wrote to memory of 2384 3028 winlogon.exe winlogon.exe PID 3028 wrote to memory of 2384 3028 winlogon.exe winlogon.exe PID 3028 wrote to memory of 2384 3028 winlogon.exe winlogon.exe PID 3028 wrote to memory of 2384 3028 winlogon.exe winlogon.exe PID 3028 wrote to memory of 2384 3028 winlogon.exe winlogon.exe PID 3028 wrote to memory of 2384 3028 winlogon.exe winlogon.exe PID 3028 wrote to memory of 2384 3028 winlogon.exe winlogon.exe PID 3028 wrote to memory of 2384 3028 winlogon.exe winlogon.exe PID 3028 wrote to memory of 2384 3028 winlogon.exe winlogon.exe PID 3028 wrote to memory of 2384 3028 winlogon.exe winlogon.exe PID 3028 wrote to memory of 2384 3028 winlogon.exe winlogon.exe PID 3028 wrote to memory of 2384 3028 winlogon.exe winlogon.exe PID 3028 wrote to memory of 2384 3028 winlogon.exe winlogon.exe PID 3028 wrote to memory of 2384 3028 winlogon.exe winlogon.exe PID 3028 wrote to memory of 2384 3028 winlogon.exe winlogon.exe PID 2372 wrote to memory of 2692 2372 181283c3e130b102c86e6ef049d0071a_JaffaCakes118.exe UNTITL~1.EXE PID 2372 wrote to memory of 2692 2372 181283c3e130b102c86e6ef049d0071a_JaffaCakes118.exe UNTITL~1.EXE PID 2372 wrote to memory of 2692 2372 181283c3e130b102c86e6ef049d0071a_JaffaCakes118.exe UNTITL~1.EXE PID 2372 wrote to memory of 2692 2372 181283c3e130b102c86e6ef049d0071a_JaffaCakes118.exe UNTITL~1.EXE PID 2384 wrote to memory of 2344 2384 winlogon.exe explorer.exe PID 2384 wrote to memory of 2344 2384 winlogon.exe explorer.exe PID 2384 wrote to memory of 2344 2384 winlogon.exe explorer.exe PID 2384 wrote to memory of 2344 2384 winlogon.exe explorer.exe PID 2384 wrote to memory of 1896 2384 winlogon.exe winupdate.exe PID 2384 wrote to memory of 1896 2384 winlogon.exe winupdate.exe PID 2384 wrote to memory of 1896 2384 winlogon.exe winupdate.exe PID 2384 wrote to memory of 1896 2384 winlogon.exe winupdate.exe PID 2384 wrote to memory of 1896 2384 winlogon.exe winupdate.exe PID 2384 wrote to memory of 1896 2384 winlogon.exe winupdate.exe PID 2384 wrote to memory of 1896 2384 winlogon.exe winupdate.exe PID 1896 wrote to memory of 2396 1896 winupdate.exe winupdate.exe PID 1896 wrote to memory of 2396 1896 winupdate.exe winupdate.exe PID 1896 wrote to memory of 2396 1896 winupdate.exe winupdate.exe PID 1896 wrote to memory of 2396 1896 winupdate.exe winupdate.exe PID 1896 wrote to memory of 2396 1896 winupdate.exe winupdate.exe PID 1896 wrote to memory of 2396 1896 winupdate.exe winupdate.exe PID 1896 wrote to memory of 2396 1896 winupdate.exe winupdate.exe PID 1896 wrote to memory of 2396 1896 winupdate.exe winupdate.exe PID 1896 wrote to memory of 2396 1896 winupdate.exe winupdate.exe PID 1896 wrote to memory of 2396 1896 winupdate.exe winupdate.exe PID 1896 wrote to memory of 2396 1896 winupdate.exe winupdate.exe PID 1896 wrote to memory of 2396 1896 winupdate.exe winupdate.exe PID 1896 wrote to memory of 2396 1896 winupdate.exe winupdate.exe PID 1896 wrote to memory of 2396 1896 winupdate.exe winupdate.exe PID 1896 wrote to memory of 2396 1896 winupdate.exe winupdate.exe PID 1896 wrote to memory of 2396 1896 winupdate.exe winupdate.exe PID 1896 wrote to memory of 2396 1896 winupdate.exe winupdate.exe PID 1896 wrote to memory of 2396 1896 winupdate.exe winupdate.exe PID 2396 wrote to memory of 2236 2396 winupdate.exe explorer.exe PID 2396 wrote to memory of 2236 2396 winupdate.exe explorer.exe PID 2396 wrote to memory of 2236 2396 winupdate.exe explorer.exe PID 2396 wrote to memory of 2236 2396 winupdate.exe explorer.exe PID 2396 wrote to memory of 2236 2396 winupdate.exe explorer.exe PID 2396 wrote to memory of 2236 2396 winupdate.exe explorer.exe PID 2396 wrote to memory of 2236 2396 winupdate.exe explorer.exe
Processes
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C:\Users\Admin\AppData\Local\Temp\181283c3e130b102c86e6ef049d0071a_JaffaCakes118.exe"C:\Users\Admin\AppData\Local\Temp\181283c3e130b102c86e6ef049d0071a_JaffaCakes118.exe"1⤵
- Loads dropped DLL
- Adds Run key to start application
- Suspicious use of WriteProcessMemory
PID:2372 -
C:\Users\Admin\AppData\Local\Temp\IXP000.TMP\winlogon.exeC:\Users\Admin\AppData\Local\Temp\IXP000.TMP\winlogon.exe2⤵
- Executes dropped EXE
- Loads dropped DLL
- Suspicious use of SetThreadContext
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:3028 -
C:\Users\Admin\AppData\Local\Temp\IXP000.TMP\winlogon.exe"C:\Users\Admin\AppData\Local\Temp\IXP000.TMP\winlogon.exe"3⤵
- Modifies WinLogon for persistence
- Checks BIOS information in registry
- Executes dropped EXE
- Loads dropped DLL
- Adds Run key to start application
- Checks processor information in registry
- Enumerates system info in registry
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:2384 -
C:\Windows\SysWOW64\explorer.exe"C:\Windows\SysWOW64\explorer.exe"4⤵PID:2344
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C:\Users\Admin\AppData\Roaming\Windupdate\winupdate.exe"C:\Users\Admin\AppData\Roaming\Windupdate\winupdate.exe"4⤵
- Executes dropped EXE
- Loads dropped DLL
- Suspicious use of SetThreadContext
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:1896 -
C:\Users\Admin\AppData\Roaming\Windupdate\winupdate.exe"C:\Users\Admin\AppData\Roaming\Windupdate\winupdate.exe"5⤵
- Checks BIOS information in registry
- Executes dropped EXE
- Loads dropped DLL
- Checks processor information in registry
- Enumerates system info in registry
- Suspicious behavior: GetForegroundWindowSpam
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:2396 -
C:\Windows\SysWOW64\explorer.exe"C:\Windows\SysWOW64\explorer.exe"6⤵PID:2236
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C:\Users\Admin\AppData\Local\Temp\IXP000.TMP\UNTITL~1.EXEC:\Users\Admin\AppData\Local\Temp\IXP000.TMP\UNTITL~1.EXE2⤵
- Executes dropped EXE
PID:2692
Network
MITRE ATT&CK Enterprise v15
Replay Monitor
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Downloads
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Filesize
463KB
MD5f1e9169a3e85f072ee0d002b7d03a774
SHA18283fe30a23eb26b024f97aac94618b53664f8e2
SHA2561ddab1b1b589f3bd4e272c2325cb2478d33feb6a6807b8a6c02260832ff2a67f
SHA51284beac45f7b78575ac228fa62e7b4848f7efde79122acee513d9cda6e8b9b1219d5ec9a38c6050ef052195e83eb8d81b8d05200094692ad43a124f0a862f9179
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Filesize
607KB
MD54ab6e467a63140fb44bea280cea542fc
SHA19993678b64516307e17a76f0f2ac2694269da873
SHA256429dd67ce05b487ef57a5e55158441ba3e914b8b6db2f7f0dac34a123e17a130
SHA512f76b8fc5d6802db034719c59f791534dd83f062dc9044e4381aa3636b43aeaf52417951e765537c5e9ebd06d726d9499f93e1dae4a0eafd45b19738ec4e76556