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Analysis
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max time kernel
137s -
max time network
149s -
platform
windows7_x64 -
resource
win7-20240704-en -
resource tags
arch:x64arch:x86image:win7-20240704-enlocale:en-usos:windows7-x64system -
submitted
24/08/2024, 21:17
Static task
static1
1 signatures
Behavioral task
behavioral1
Sample
bf6e6e44a71373332d3e4c83f2258693_JaffaCakes118.exe
Resource
win7-20240704-en
windows7-x64
15 signatures
150 seconds
General
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Target
bf6e6e44a71373332d3e4c83f2258693_JaffaCakes118.exe
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Size
101KB
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MD5
bf6e6e44a71373332d3e4c83f2258693
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SHA1
2affc66676f3ec7775a4ffacbb664a5a64ee8060
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SHA256
72c7605f0e0a731bd81772efdab55da9f3c026217871ba7b8832a06c108214e8
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SHA512
103bdf7730ea918d08299e50f70cde76959965ba09bb26c437f23138dc8a46f4c0a38e8ab1e7ff42d14556ec5d2160f3fd93c014b56fd3d112b328e8099b18f3
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SSDEEP
3072:WJ6dMMfkqGIlxvu/JzMejSO1sJ6CaKMFFk8jwaaHw7Koj4r+:JdMITlD2SOe05HF
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\\woeaojdl\\fuvmyjjc.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\fuvmyjjc.exe svchost.exe File created C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\fuvmyjjc.exe svchost.exe -
Executes dropped EXE 1 IoCs
pid Process 1392 wathblllsjlnwwyh.exe -
Impair Defenses: Safe Mode Boot 1 TTPs 3 IoCs
description ioc Process Key deleted \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\SafeBoot\Minimal\WinDefend svchost.exe Key deleted \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\SafeBoot\Minimal\ProfSvc svchost.exe Key deleted \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\SafeBoot\Minimal\Power svchost.exe -
Loads dropped DLL 4 IoCs
pid Process 1624 bf6e6e44a71373332d3e4c83f2258693_JaffaCakes118.exe 1624 bf6e6e44a71373332d3e4c83f2258693_JaffaCakes118.exe 1624 bf6e6e44a71373332d3e4c83f2258693_JaffaCakes118.exe 1624 bf6e6e44a71373332d3e4c83f2258693_JaffaCakes118.exe -
Adds Run key to start application 2 TTPs 1 IoCs
description ioc Process Set value (str) \REGISTRY\USER\S-1-5-21-2212144002-1172735686-1556890956-1000\Software\Microsoft\Windows\CurrentVersion\Run\FuvMyjjc = "C:\\Users\\Admin\\AppData\\Local\\woeaojdl\\fuvmyjjc.exe" svchost.exe -
Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).
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System Location Discovery: System Language Discovery 1 TTPs 4 IoCs
Attempt gather information about the system language of a victim in order to infer the geographical location of that host.
description ioc Process Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language wathblllsjlnwwyh.exe Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language bf6e6e44a71373332d3e4c83f2258693_JaffaCakes118.exe Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language svchost.exe Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language svchost.exe -
Suspicious behavior: EnumeratesProcesses 64 IoCs
pid Process 2660 svchost.exe 2660 svchost.exe 2660 svchost.exe 2660 svchost.exe 2660 svchost.exe 2660 svchost.exe 2660 svchost.exe 2660 svchost.exe 2660 svchost.exe 2660 svchost.exe 2660 svchost.exe 2660 svchost.exe 2660 svchost.exe 2660 svchost.exe 2660 svchost.exe 2660 svchost.exe 2660 svchost.exe 2660 svchost.exe 2660 svchost.exe 2660 svchost.exe 2660 svchost.exe 2660 svchost.exe 2660 svchost.exe 2660 svchost.exe 2660 svchost.exe 2660 svchost.exe 2660 svchost.exe 2660 svchost.exe 2660 svchost.exe 2660 svchost.exe 2660 svchost.exe 2660 svchost.exe 2660 svchost.exe 2660 svchost.exe 2660 svchost.exe 2660 svchost.exe 2660 svchost.exe 2660 svchost.exe 2660 svchost.exe 2660 svchost.exe 2660 svchost.exe 2660 svchost.exe 2660 svchost.exe 2660 svchost.exe 2660 svchost.exe 2660 svchost.exe 2660 svchost.exe 2660 svchost.exe 2660 svchost.exe 2660 svchost.exe 2660 svchost.exe 2660 svchost.exe 2660 svchost.exe 2660 svchost.exe 2660 svchost.exe 2660 svchost.exe 2660 svchost.exe 2660 svchost.exe 2660 svchost.exe 2660 svchost.exe 2660 svchost.exe 2660 svchost.exe 2660 svchost.exe 2660 svchost.exe -
Suspicious behavior: LoadsDriver 1 IoCs
pid Process 464 Process not Found -
Suspicious use of AdjustPrivilegeToken 64 IoCs
description pid Process Token: SeSecurityPrivilege 1624 bf6e6e44a71373332d3e4c83f2258693_JaffaCakes118.exe Token: SeDebugPrivilege 1624 bf6e6e44a71373332d3e4c83f2258693_JaffaCakes118.exe Token: SeSecurityPrivilege 548 svchost.exe Token: SeSecurityPrivilege 2660 svchost.exe Token: SeDebugPrivilege 2660 svchost.exe Token: SeRestorePrivilege 2660 svchost.exe Token: SeBackupPrivilege 2660 svchost.exe Token: SeRestorePrivilege 2660 svchost.exe Token: SeBackupPrivilege 2660 svchost.exe Token: SeRestorePrivilege 2660 svchost.exe Token: SeBackupPrivilege 2660 svchost.exe Token: SeRestorePrivilege 2660 svchost.exe Token: SeBackupPrivilege 2660 svchost.exe Token: SeRestorePrivilege 2660 svchost.exe Token: SeBackupPrivilege 2660 svchost.exe Token: SeRestorePrivilege 2660 svchost.exe Token: SeBackupPrivilege 2660 svchost.exe Token: SeSecurityPrivilege 1392 wathblllsjlnwwyh.exe Token: SeLoadDriverPrivilege 1392 wathblllsjlnwwyh.exe Token: SeRestorePrivilege 2660 svchost.exe Token: SeBackupPrivilege 2660 svchost.exe Token: SeRestorePrivilege 2660 svchost.exe Token: SeBackupPrivilege 2660 svchost.exe Token: SeRestorePrivilege 2660 svchost.exe Token: SeBackupPrivilege 2660 svchost.exe Token: SeRestorePrivilege 2660 svchost.exe Token: SeBackupPrivilege 2660 svchost.exe Token: SeRestorePrivilege 2660 svchost.exe Token: SeBackupPrivilege 2660 svchost.exe Token: SeRestorePrivilege 2660 svchost.exe Token: SeBackupPrivilege 2660 svchost.exe Token: SeRestorePrivilege 2660 svchost.exe Token: SeBackupPrivilege 2660 svchost.exe Token: SeRestorePrivilege 2660 svchost.exe Token: SeBackupPrivilege 2660 svchost.exe Token: SeRestorePrivilege 2660 svchost.exe Token: SeBackupPrivilege 2660 svchost.exe Token: SeRestorePrivilege 2660 svchost.exe Token: SeBackupPrivilege 2660 svchost.exe Token: SeRestorePrivilege 2660 svchost.exe Token: SeBackupPrivilege 2660 svchost.exe Token: SeRestorePrivilege 2660 svchost.exe Token: SeBackupPrivilege 2660 svchost.exe Token: SeRestorePrivilege 2660 svchost.exe Token: SeBackupPrivilege 2660 svchost.exe Token: SeRestorePrivilege 2660 svchost.exe Token: SeBackupPrivilege 2660 svchost.exe Token: SeRestorePrivilege 2660 svchost.exe Token: SeBackupPrivilege 2660 svchost.exe Token: SeRestorePrivilege 2660 svchost.exe Token: SeBackupPrivilege 2660 svchost.exe Token: SeRestorePrivilege 2660 svchost.exe Token: SeBackupPrivilege 2660 svchost.exe Token: SeRestorePrivilege 2660 svchost.exe Token: SeBackupPrivilege 2660 svchost.exe Token: SeRestorePrivilege 2660 svchost.exe Token: SeBackupPrivilege 2660 svchost.exe Token: SeRestorePrivilege 2660 svchost.exe Token: SeBackupPrivilege 2660 svchost.exe Token: SeRestorePrivilege 2660 svchost.exe Token: SeBackupPrivilege 2660 svchost.exe Token: SeRestorePrivilege 2660 svchost.exe Token: SeBackupPrivilege 2660 svchost.exe Token: SeRestorePrivilege 2660 svchost.exe -
Suspicious use of WriteProcessMemory 24 IoCs
description pid Process procid_target PID 1624 wrote to memory of 548 1624 bf6e6e44a71373332d3e4c83f2258693_JaffaCakes118.exe 30 PID 1624 wrote to memory of 548 1624 bf6e6e44a71373332d3e4c83f2258693_JaffaCakes118.exe 30 PID 1624 wrote to memory of 548 1624 bf6e6e44a71373332d3e4c83f2258693_JaffaCakes118.exe 30 PID 1624 wrote to memory of 548 1624 bf6e6e44a71373332d3e4c83f2258693_JaffaCakes118.exe 30 PID 1624 wrote to memory of 548 1624 bf6e6e44a71373332d3e4c83f2258693_JaffaCakes118.exe 30 PID 1624 wrote to memory of 548 1624 bf6e6e44a71373332d3e4c83f2258693_JaffaCakes118.exe 30 PID 1624 wrote to memory of 548 1624 bf6e6e44a71373332d3e4c83f2258693_JaffaCakes118.exe 30 PID 1624 wrote to memory of 548 1624 bf6e6e44a71373332d3e4c83f2258693_JaffaCakes118.exe 30 PID 1624 wrote to memory of 548 1624 bf6e6e44a71373332d3e4c83f2258693_JaffaCakes118.exe 30 PID 1624 wrote to memory of 548 1624 bf6e6e44a71373332d3e4c83f2258693_JaffaCakes118.exe 30 PID 1624 wrote to memory of 2660 1624 bf6e6e44a71373332d3e4c83f2258693_JaffaCakes118.exe 31 PID 1624 wrote to memory of 2660 1624 bf6e6e44a71373332d3e4c83f2258693_JaffaCakes118.exe 31 PID 1624 wrote to memory of 2660 1624 bf6e6e44a71373332d3e4c83f2258693_JaffaCakes118.exe 31 PID 1624 wrote to memory of 2660 1624 bf6e6e44a71373332d3e4c83f2258693_JaffaCakes118.exe 31 PID 1624 wrote to memory of 2660 1624 bf6e6e44a71373332d3e4c83f2258693_JaffaCakes118.exe 31 PID 1624 wrote to memory of 2660 1624 bf6e6e44a71373332d3e4c83f2258693_JaffaCakes118.exe 31 PID 1624 wrote to memory of 2660 1624 bf6e6e44a71373332d3e4c83f2258693_JaffaCakes118.exe 31 PID 1624 wrote to memory of 2660 1624 bf6e6e44a71373332d3e4c83f2258693_JaffaCakes118.exe 31 PID 1624 wrote to memory of 2660 1624 bf6e6e44a71373332d3e4c83f2258693_JaffaCakes118.exe 31 PID 1624 wrote to memory of 2660 1624 bf6e6e44a71373332d3e4c83f2258693_JaffaCakes118.exe 31 PID 1624 wrote to memory of 1392 1624 bf6e6e44a71373332d3e4c83f2258693_JaffaCakes118.exe 32 PID 1624 wrote to memory of 1392 1624 bf6e6e44a71373332d3e4c83f2258693_JaffaCakes118.exe 32 PID 1624 wrote to memory of 1392 1624 bf6e6e44a71373332d3e4c83f2258693_JaffaCakes118.exe 32 PID 1624 wrote to memory of 1392 1624 bf6e6e44a71373332d3e4c83f2258693_JaffaCakes118.exe 32
Processes
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C:\Users\Admin\AppData\Local\Temp\bf6e6e44a71373332d3e4c83f2258693_JaffaCakes118.exe"C:\Users\Admin\AppData\Local\Temp\bf6e6e44a71373332d3e4c83f2258693_JaffaCakes118.exe"1⤵
- Loads dropped DLL
- System Location Discovery: System Language Discovery
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:1624 -
C:\Windows\SysWOW64\svchost.exeC:\Windows\system32\svchost.exe2⤵
- System Location Discovery: System Language Discovery
- Suspicious use of AdjustPrivilegeToken
PID:548
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C:\Windows\SysWOW64\svchost.exeC:\Windows\system32\svchost.exe2⤵
- 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
- System Location Discovery: System Language Discovery
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
PID:2660
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C:\Users\Admin\AppData\Local\Temp\wathblllsjlnwwyh.exe"C:\Users\Admin\AppData\Local\Temp\wathblllsjlnwwyh.exe"2⤵
- Executes dropped EXE
- System Location Discovery: System Language Discovery
- Suspicious use of AdjustPrivilegeToken
PID:1392
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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
1Defense Evasion
Abuse Elevation Control Mechanism
1Bypass User Account Control
1Impair Defenses
2Disable or Modify Tools
1Safe Mode Boot
1Modify Registry
3Replay Monitor
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Downloads
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Filesize
101KB
MD5bf6e6e44a71373332d3e4c83f2258693
SHA12affc66676f3ec7775a4ffacbb664a5a64ee8060
SHA25672c7605f0e0a731bd81772efdab55da9f3c026217871ba7b8832a06c108214e8
SHA512103bdf7730ea918d08299e50f70cde76959965ba09bb26c437f23138dc8a46f4c0a38e8ab1e7ff42d14556ec5d2160f3fd93c014b56fd3d112b328e8099b18f3