Analysis
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max time kernel
149s -
max time network
143s -
platform
windows7_x64 -
resource
win7-20240508-en -
resource tags
arch:x64arch:x86image:win7-20240508-enlocale:en-usos:windows7-x64system -
submitted
26-06-2024 03:54
Static task
static1
Behavioral task
behavioral1
Sample
10a326b5129bb5555c17bcf24be84ed2_JaffaCakes118.dll
Resource
win7-20240508-en
General
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Target
10a326b5129bb5555c17bcf24be84ed2_JaffaCakes118.dll
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Size
220KB
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MD5
10a326b5129bb5555c17bcf24be84ed2
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SHA1
bc9936d0271fde73718e35b9047116b112491c56
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SHA256
3a63d9c2f444d5e1676d113e1f4990dbb16065ea5eef628db756038040c2ac3a
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SHA512
4763eafbed3aab6de1b3155a3046e811342dc8dec0be7681379f382ce195bdab9cb34173e2350079d82ca1c252b4acfb6a22d611da55ebf5b06d2f45207237e6
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SSDEEP
3072:dgU1b4jxZTxLFgXr3LjJqo0Ktde/3Jvmc/BsCpCc9v/rRgoF3mwzi8EPELGNMe:Z4xhor79ts/3Jvmcqi9Leo5mRJELkR
Malware Config
Signatures
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Modifies WinLogon for persistence 2 TTPs 1 IoCs
description ioc Process Set value (str) \REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Windows NT\CurrentVersion\Winlogon\Userinit = "userinit.exe,C:\\Users\\Admin\\AppData\\Local\\sgcawypj\\bmtmhcya.exe" svchost.exe -
description ioc Process Set value (int) \REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\System\EnableLUA = "0" svchost.exe -
Checks BIOS information in registry 2 TTPs 1 IoCs
BIOS information is often read in order to detect sandboxing environments.
description ioc Process Key value queried \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\SystemBiosVersion svchost.exe -
Drops startup file 2 IoCs
description ioc Process File opened for modification C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\bmtmhcya.exe svchost.exe File created C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\bmtmhcya.exe svchost.exe -
Executes dropped EXE 2 IoCs
pid Process 1276 rundll32mgr.exe 2996 srrhjebgsgyegeni.exe -
Impair Defenses: Safe Mode Boot 1 TTPs 3 IoCs
description ioc Process Key deleted \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\SafeBoot\Minimal\ProfSvc svchost.exe Key deleted \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\SafeBoot\Minimal\Power svchost.exe Key deleted \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\SafeBoot\Minimal\WinDefend svchost.exe -
Loads dropped DLL 6 IoCs
pid Process 2432 rundll32.exe 2432 rundll32.exe 1276 rundll32mgr.exe 1276 rundll32mgr.exe 1276 rundll32mgr.exe 1276 rundll32mgr.exe -
Adds Run key to start application 2 TTPs 1 IoCs
description ioc Process Set value (str) \REGISTRY\USER\S-1-5-21-3691908287-3775019229-3534252667-1000\Software\Microsoft\Windows\CurrentVersion\Run\BmtMhcya = "C:\\Users\\Admin\\AppData\\Local\\sgcawypj\\bmtmhcya.exe" svchost.exe -
Drops file in System32 directory 1 IoCs
description ioc Process File created C:\Windows\SysWOW64\rundll32mgr.exe rundll32.exe -
Drops file in Program Files directory 1 IoCs
description ioc Process File opened for modification C:\Program Files (x86)\VIA\Setup\viasetup.log rundll32.exe -
Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).
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Suspicious behavior: EnumeratesProcesses 64 IoCs
pid Process 2624 svchost.exe 2624 svchost.exe 2624 svchost.exe 2624 svchost.exe 2624 svchost.exe 2624 svchost.exe 2624 svchost.exe 2624 svchost.exe 2624 svchost.exe 2624 svchost.exe 2624 svchost.exe 2624 svchost.exe 2624 svchost.exe 2624 svchost.exe 2624 svchost.exe 2624 svchost.exe 2624 svchost.exe 2624 svchost.exe 2624 svchost.exe 2624 svchost.exe 2624 svchost.exe 2624 svchost.exe 2624 svchost.exe 2624 svchost.exe 2624 svchost.exe 2624 svchost.exe 2624 svchost.exe 2624 svchost.exe 2624 svchost.exe 2624 svchost.exe 2624 svchost.exe 2624 svchost.exe 2624 svchost.exe 2624 svchost.exe 2624 svchost.exe 2624 svchost.exe 2624 svchost.exe 2624 svchost.exe 2624 svchost.exe 2624 svchost.exe 2624 svchost.exe 2624 svchost.exe 2624 svchost.exe 2624 svchost.exe 2624 svchost.exe 2624 svchost.exe 2624 svchost.exe 2624 svchost.exe 2624 svchost.exe 2624 svchost.exe 2624 svchost.exe 2624 svchost.exe 2624 svchost.exe 2624 svchost.exe 2624 svchost.exe 2624 svchost.exe 2624 svchost.exe 2624 svchost.exe 2624 svchost.exe 2624 svchost.exe 2624 svchost.exe 2624 svchost.exe 2624 svchost.exe 2624 svchost.exe -
Suspicious behavior: LoadsDriver 1 IoCs
pid Process 476 Process not Found -
Suspicious use of AdjustPrivilegeToken 64 IoCs
description pid Process Token: SeSecurityPrivilege 1276 rundll32mgr.exe Token: SeDebugPrivilege 1276 rundll32mgr.exe Token: SeSecurityPrivilege 3052 svchost.exe Token: SeSecurityPrivilege 2624 svchost.exe Token: SeDebugPrivilege 2624 svchost.exe Token: SeRestorePrivilege 2624 svchost.exe Token: SeBackupPrivilege 2624 svchost.exe Token: SeRestorePrivilege 2624 svchost.exe Token: SeBackupPrivilege 2624 svchost.exe Token: SeRestorePrivilege 2624 svchost.exe Token: SeBackupPrivilege 2624 svchost.exe Token: SeRestorePrivilege 2624 svchost.exe Token: SeBackupPrivilege 2624 svchost.exe Token: SeRestorePrivilege 2624 svchost.exe Token: SeBackupPrivilege 2624 svchost.exe Token: SeRestorePrivilege 2624 svchost.exe Token: SeBackupPrivilege 2624 svchost.exe Token: SeSecurityPrivilege 2996 srrhjebgsgyegeni.exe Token: SeLoadDriverPrivilege 2996 srrhjebgsgyegeni.exe Token: SeRestorePrivilege 2624 svchost.exe Token: SeBackupPrivilege 2624 svchost.exe Token: SeRestorePrivilege 2624 svchost.exe Token: SeBackupPrivilege 2624 svchost.exe Token: SeRestorePrivilege 2624 svchost.exe Token: SeBackupPrivilege 2624 svchost.exe Token: SeRestorePrivilege 2624 svchost.exe Token: SeBackupPrivilege 2624 svchost.exe Token: SeRestorePrivilege 2624 svchost.exe Token: SeBackupPrivilege 2624 svchost.exe Token: SeRestorePrivilege 2624 svchost.exe Token: SeBackupPrivilege 2624 svchost.exe Token: SeRestorePrivilege 2624 svchost.exe Token: SeBackupPrivilege 2624 svchost.exe Token: SeRestorePrivilege 2624 svchost.exe Token: SeBackupPrivilege 2624 svchost.exe Token: SeRestorePrivilege 2624 svchost.exe Token: SeBackupPrivilege 2624 svchost.exe Token: SeRestorePrivilege 2624 svchost.exe Token: SeBackupPrivilege 2624 svchost.exe Token: SeRestorePrivilege 2624 svchost.exe Token: SeBackupPrivilege 2624 svchost.exe Token: SeRestorePrivilege 2624 svchost.exe Token: SeBackupPrivilege 2624 svchost.exe Token: SeRestorePrivilege 2624 svchost.exe Token: SeBackupPrivilege 2624 svchost.exe Token: SeRestorePrivilege 2624 svchost.exe Token: SeBackupPrivilege 2624 svchost.exe Token: SeRestorePrivilege 2624 svchost.exe Token: SeBackupPrivilege 2624 svchost.exe Token: SeRestorePrivilege 2624 svchost.exe Token: SeBackupPrivilege 2624 svchost.exe Token: SeRestorePrivilege 2624 svchost.exe Token: SeBackupPrivilege 2624 svchost.exe Token: SeRestorePrivilege 2624 svchost.exe Token: SeBackupPrivilege 2624 svchost.exe Token: SeRestorePrivilege 2624 svchost.exe Token: SeBackupPrivilege 2624 svchost.exe Token: SeRestorePrivilege 2624 svchost.exe Token: SeBackupPrivilege 2624 svchost.exe Token: SeRestorePrivilege 2624 svchost.exe Token: SeBackupPrivilege 2624 svchost.exe Token: SeRestorePrivilege 2624 svchost.exe Token: SeBackupPrivilege 2624 svchost.exe Token: SeRestorePrivilege 2624 svchost.exe -
Suspicious use of WriteProcessMemory 35 IoCs
description pid Process procid_target PID 2168 wrote to memory of 2432 2168 rundll32.exe 28 PID 2168 wrote to memory of 2432 2168 rundll32.exe 28 PID 2168 wrote to memory of 2432 2168 rundll32.exe 28 PID 2168 wrote to memory of 2432 2168 rundll32.exe 28 PID 2168 wrote to memory of 2432 2168 rundll32.exe 28 PID 2168 wrote to memory of 2432 2168 rundll32.exe 28 PID 2168 wrote to memory of 2432 2168 rundll32.exe 28 PID 2432 wrote to memory of 1276 2432 rundll32.exe 29 PID 2432 wrote to memory of 1276 2432 rundll32.exe 29 PID 2432 wrote to memory of 1276 2432 rundll32.exe 29 PID 2432 wrote to memory of 1276 2432 rundll32.exe 29 PID 1276 wrote to memory of 3052 1276 rundll32mgr.exe 30 PID 1276 wrote to memory of 3052 1276 rundll32mgr.exe 30 PID 1276 wrote to memory of 3052 1276 rundll32mgr.exe 30 PID 1276 wrote to memory of 3052 1276 rundll32mgr.exe 30 PID 1276 wrote to memory of 3052 1276 rundll32mgr.exe 30 PID 1276 wrote to memory of 3052 1276 rundll32mgr.exe 30 PID 1276 wrote to memory of 3052 1276 rundll32mgr.exe 30 PID 1276 wrote to memory of 3052 1276 rundll32mgr.exe 30 PID 1276 wrote to memory of 3052 1276 rundll32mgr.exe 30 PID 1276 wrote to memory of 3052 1276 rundll32mgr.exe 30 PID 1276 wrote to memory of 2624 1276 rundll32mgr.exe 31 PID 1276 wrote to memory of 2624 1276 rundll32mgr.exe 31 PID 1276 wrote to memory of 2624 1276 rundll32mgr.exe 31 PID 1276 wrote to memory of 2624 1276 rundll32mgr.exe 31 PID 1276 wrote to memory of 2624 1276 rundll32mgr.exe 31 PID 1276 wrote to memory of 2624 1276 rundll32mgr.exe 31 PID 1276 wrote to memory of 2624 1276 rundll32mgr.exe 31 PID 1276 wrote to memory of 2624 1276 rundll32mgr.exe 31 PID 1276 wrote to memory of 2624 1276 rundll32mgr.exe 31 PID 1276 wrote to memory of 2624 1276 rundll32mgr.exe 31 PID 1276 wrote to memory of 2996 1276 rundll32mgr.exe 32 PID 1276 wrote to memory of 2996 1276 rundll32mgr.exe 32 PID 1276 wrote to memory of 2996 1276 rundll32mgr.exe 32 PID 1276 wrote to memory of 2996 1276 rundll32mgr.exe 32
Processes
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C:\Windows\system32\rundll32.exerundll32.exe C:\Users\Admin\AppData\Local\Temp\10a326b5129bb5555c17bcf24be84ed2_JaffaCakes118.dll,#11⤵
- Suspicious use of WriteProcessMemory
PID:2168 -
C:\Windows\SysWOW64\rundll32.exerundll32.exe C:\Users\Admin\AppData\Local\Temp\10a326b5129bb5555c17bcf24be84ed2_JaffaCakes118.dll,#12⤵
- Loads dropped DLL
- Drops file in System32 directory
- Drops file in Program Files directory
- Suspicious use of WriteProcessMemory
PID:2432 -
C:\Windows\SysWOW64\rundll32mgr.exeC:\Windows\SysWOW64\rundll32mgr.exe3⤵
- Executes dropped EXE
- Loads dropped DLL
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:1276 -
C:\Windows\SysWOW64\svchost.exeC:\Windows\system32\svchost.exe4⤵
- Suspicious use of AdjustPrivilegeToken
PID:3052
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C:\Windows\SysWOW64\svchost.exeC:\Windows\system32\svchost.exe4⤵
- Modifies WinLogon for persistence
- UAC bypass
- Checks BIOS information in registry
- Drops startup file
- Impair Defenses: Safe Mode Boot
- Adds Run key to start application
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
PID:2624
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C:\Users\Admin\AppData\Local\Temp\srrhjebgsgyegeni.exe"C:\Users\Admin\AppData\Local\Temp\srrhjebgsgyegeni.exe"4⤵
- Executes dropped EXE
- Suspicious use of AdjustPrivilegeToken
PID:2996
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Network
MITRE ATT&CK Enterprise v15
Persistence
Boot or Logon Autostart Execution
2Registry Run Keys / Startup Folder
1Winlogon Helper DLL
1Privilege Escalation
Abuse Elevation Control Mechanism
1Bypass User Account Control
1Boot or Logon Autostart Execution
2Registry Run Keys / Startup Folder
1Winlogon Helper DLL
1Replay Monitor
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Downloads
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Filesize
114KB
MD51093158a93efd6a813e57ce647b81735
SHA1823a9d673b9083c3ddaedc69fb0583f97991457f
SHA25694646d45925b4cd6928646605f6c54e04f84136dc25f3f0914a53161f5a57ee1
SHA512f4d71ab354ce9ca4c2ab20633525f9be715ca8de1194e652c692415643cb609651c2e3a8edd4d3d5a28f4ca8c732eb9ff598c7e929f2deb46fa1b2509150d064