Analysis
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max time kernel
150s -
max time network
142s -
platform
windows7_x64 -
resource
win7-20240903-en -
resource tags
arch:x64arch:x86image:win7-20240903-enlocale:en-usos:windows7-x64system -
submitted
28-01-2025 12:20
Static task
static1
1 signatures
Behavioral task
behavioral1
Sample
JaffaCakes118_4acc440e4ea284240c4867d9e145e9bd.exe
Resource
win7-20240903-en
windows7-x64
16 signatures
150 seconds
General
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Target
JaffaCakes118_4acc440e4ea284240c4867d9e145e9bd.exe
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Size
100KB
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MD5
4acc440e4ea284240c4867d9e145e9bd
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SHA1
a11b5bb2026487f1e358cb5c2d7c86ebe707462c
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SHA256
d5d48dd13e45a2ed52803de07af6c59b2933dc6e5398d6b880bc477c2c873ea4
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SHA512
cd06151f33c96560a89b1c150d6eb9145cec321fa107922ae9f76b9b6b0cdc729d09324730cf4146ea457abfb54537055df583bcfbf0011ec42da2af9ae88626
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SSDEEP
3072:lNDuhNig6LUD3DeCN6xvmBz/gxgGak8jwaaHw7Koj4rD8p2JvP:lNuF6LdwKALgxJGuvP
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\\emewgtph\\msvjqtvx.exe" svchost.exe -
Ramnit family
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UAC bypass 3 TTPs 1 IoCs
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\msvjqtvx.exe svchost.exe File created C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\msvjqtvx.exe svchost.exe -
Executes dropped EXE 1 IoCs
pid Process 2744 extesvxeicibyiit.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 5 IoCs
pid Process 3036 JaffaCakes118_4acc440e4ea284240c4867d9e145e9bd.exe 3036 JaffaCakes118_4acc440e4ea284240c4867d9e145e9bd.exe 3036 JaffaCakes118_4acc440e4ea284240c4867d9e145e9bd.exe 3036 JaffaCakes118_4acc440e4ea284240c4867d9e145e9bd.exe 3036 JaffaCakes118_4acc440e4ea284240c4867d9e145e9bd.exe -
Adds Run key to start application 2 TTPs 1 IoCs
description ioc Process Set value (str) \REGISTRY\USER\S-1-5-21-4177215427-74451935-3209572229-1000\Software\Microsoft\Windows\CurrentVersion\Run\MsvJqtvx = "C:\\Users\\Admin\\AppData\\Local\\emewgtph\\msvjqtvx.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 JaffaCakes118_4acc440e4ea284240c4867d9e145e9bd.exe Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language svchost.exe Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language svchost.exe Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language extesvxeicibyiit.exe -
Suspicious behavior: EnumeratesProcesses 64 IoCs
pid Process 2304 svchost.exe 2304 svchost.exe 2304 svchost.exe 2304 svchost.exe 2304 svchost.exe 2304 svchost.exe 2304 svchost.exe 2304 svchost.exe 2304 svchost.exe 2304 svchost.exe 2304 svchost.exe 2304 svchost.exe 2304 svchost.exe 2304 svchost.exe 2304 svchost.exe 2304 svchost.exe 2304 svchost.exe 2304 svchost.exe 2304 svchost.exe 2304 svchost.exe 2304 svchost.exe 2304 svchost.exe 2304 svchost.exe 2304 svchost.exe 2304 svchost.exe 2304 svchost.exe 2304 svchost.exe 2304 svchost.exe 2304 svchost.exe 2304 svchost.exe 2304 svchost.exe 2304 svchost.exe 2304 svchost.exe 2304 svchost.exe 2304 svchost.exe 2304 svchost.exe 2304 svchost.exe 2304 svchost.exe 2304 svchost.exe 2304 svchost.exe 2304 svchost.exe 2304 svchost.exe 2304 svchost.exe 2304 svchost.exe 2304 svchost.exe 2304 svchost.exe 2304 svchost.exe 2304 svchost.exe 2304 svchost.exe 2304 svchost.exe 2304 svchost.exe 2304 svchost.exe 2304 svchost.exe 2304 svchost.exe 2304 svchost.exe 2304 svchost.exe 2304 svchost.exe 2304 svchost.exe 2304 svchost.exe 2304 svchost.exe 2304 svchost.exe 2304 svchost.exe 2304 svchost.exe 2304 svchost.exe -
Suspicious behavior: LoadsDriver 1 IoCs
pid Process 476 Process not Found -
Suspicious use of AdjustPrivilegeToken 64 IoCs
description pid Process Token: SeSecurityPrivilege 3036 JaffaCakes118_4acc440e4ea284240c4867d9e145e9bd.exe Token: SeDebugPrivilege 3036 JaffaCakes118_4acc440e4ea284240c4867d9e145e9bd.exe Token: SeSecurityPrivilege 2348 svchost.exe Token: SeSecurityPrivilege 2304 svchost.exe Token: SeDebugPrivilege 2304 svchost.exe Token: SeRestorePrivilege 2304 svchost.exe Token: SeBackupPrivilege 2304 svchost.exe Token: SeRestorePrivilege 2304 svchost.exe Token: SeBackupPrivilege 2304 svchost.exe Token: SeRestorePrivilege 2304 svchost.exe Token: SeBackupPrivilege 2304 svchost.exe Token: SeRestorePrivilege 2304 svchost.exe Token: SeBackupPrivilege 2304 svchost.exe Token: SeRestorePrivilege 2304 svchost.exe Token: SeBackupPrivilege 2304 svchost.exe Token: SeRestorePrivilege 2304 svchost.exe Token: SeBackupPrivilege 2304 svchost.exe Token: SeSecurityPrivilege 2744 extesvxeicibyiit.exe Token: SeLoadDriverPrivilege 2744 extesvxeicibyiit.exe Token: SeRestorePrivilege 2304 svchost.exe Token: SeBackupPrivilege 2304 svchost.exe Token: SeRestorePrivilege 2304 svchost.exe Token: SeBackupPrivilege 2304 svchost.exe Token: SeRestorePrivilege 2304 svchost.exe Token: SeBackupPrivilege 2304 svchost.exe Token: SeRestorePrivilege 2304 svchost.exe Token: SeBackupPrivilege 2304 svchost.exe Token: SeRestorePrivilege 2304 svchost.exe Token: SeBackupPrivilege 2304 svchost.exe Token: SeRestorePrivilege 2304 svchost.exe Token: SeBackupPrivilege 2304 svchost.exe Token: SeRestorePrivilege 2304 svchost.exe Token: SeBackupPrivilege 2304 svchost.exe Token: SeRestorePrivilege 2304 svchost.exe Token: SeBackupPrivilege 2304 svchost.exe Token: SeRestorePrivilege 2304 svchost.exe Token: SeBackupPrivilege 2304 svchost.exe Token: SeRestorePrivilege 2304 svchost.exe Token: SeBackupPrivilege 2304 svchost.exe Token: SeRestorePrivilege 2304 svchost.exe Token: SeBackupPrivilege 2304 svchost.exe Token: SeRestorePrivilege 2304 svchost.exe Token: SeBackupPrivilege 2304 svchost.exe Token: SeRestorePrivilege 2304 svchost.exe Token: SeBackupPrivilege 2304 svchost.exe Token: SeRestorePrivilege 2304 svchost.exe Token: SeBackupPrivilege 2304 svchost.exe Token: SeRestorePrivilege 2304 svchost.exe Token: SeBackupPrivilege 2304 svchost.exe Token: SeRestorePrivilege 2304 svchost.exe Token: SeBackupPrivilege 2304 svchost.exe Token: SeRestorePrivilege 2304 svchost.exe Token: SeBackupPrivilege 2304 svchost.exe Token: SeRestorePrivilege 2304 svchost.exe Token: SeBackupPrivilege 2304 svchost.exe Token: SeRestorePrivilege 2304 svchost.exe Token: SeBackupPrivilege 2304 svchost.exe Token: SeRestorePrivilege 2304 svchost.exe Token: SeBackupPrivilege 2304 svchost.exe Token: SeRestorePrivilege 2304 svchost.exe Token: SeBackupPrivilege 2304 svchost.exe Token: SeRestorePrivilege 2304 svchost.exe Token: SeBackupPrivilege 2304 svchost.exe Token: SeRestorePrivilege 2304 svchost.exe -
Suspicious use of WriteProcessMemory 24 IoCs
description pid Process procid_target PID 3036 wrote to memory of 2348 3036 JaffaCakes118_4acc440e4ea284240c4867d9e145e9bd.exe 30 PID 3036 wrote to memory of 2348 3036 JaffaCakes118_4acc440e4ea284240c4867d9e145e9bd.exe 30 PID 3036 wrote to memory of 2348 3036 JaffaCakes118_4acc440e4ea284240c4867d9e145e9bd.exe 30 PID 3036 wrote to memory of 2348 3036 JaffaCakes118_4acc440e4ea284240c4867d9e145e9bd.exe 30 PID 3036 wrote to memory of 2348 3036 JaffaCakes118_4acc440e4ea284240c4867d9e145e9bd.exe 30 PID 3036 wrote to memory of 2348 3036 JaffaCakes118_4acc440e4ea284240c4867d9e145e9bd.exe 30 PID 3036 wrote to memory of 2348 3036 JaffaCakes118_4acc440e4ea284240c4867d9e145e9bd.exe 30 PID 3036 wrote to memory of 2348 3036 JaffaCakes118_4acc440e4ea284240c4867d9e145e9bd.exe 30 PID 3036 wrote to memory of 2348 3036 JaffaCakes118_4acc440e4ea284240c4867d9e145e9bd.exe 30 PID 3036 wrote to memory of 2348 3036 JaffaCakes118_4acc440e4ea284240c4867d9e145e9bd.exe 30 PID 3036 wrote to memory of 2304 3036 JaffaCakes118_4acc440e4ea284240c4867d9e145e9bd.exe 31 PID 3036 wrote to memory of 2304 3036 JaffaCakes118_4acc440e4ea284240c4867d9e145e9bd.exe 31 PID 3036 wrote to memory of 2304 3036 JaffaCakes118_4acc440e4ea284240c4867d9e145e9bd.exe 31 PID 3036 wrote to memory of 2304 3036 JaffaCakes118_4acc440e4ea284240c4867d9e145e9bd.exe 31 PID 3036 wrote to memory of 2304 3036 JaffaCakes118_4acc440e4ea284240c4867d9e145e9bd.exe 31 PID 3036 wrote to memory of 2304 3036 JaffaCakes118_4acc440e4ea284240c4867d9e145e9bd.exe 31 PID 3036 wrote to memory of 2304 3036 JaffaCakes118_4acc440e4ea284240c4867d9e145e9bd.exe 31 PID 3036 wrote to memory of 2304 3036 JaffaCakes118_4acc440e4ea284240c4867d9e145e9bd.exe 31 PID 3036 wrote to memory of 2304 3036 JaffaCakes118_4acc440e4ea284240c4867d9e145e9bd.exe 31 PID 3036 wrote to memory of 2304 3036 JaffaCakes118_4acc440e4ea284240c4867d9e145e9bd.exe 31 PID 3036 wrote to memory of 2744 3036 JaffaCakes118_4acc440e4ea284240c4867d9e145e9bd.exe 32 PID 3036 wrote to memory of 2744 3036 JaffaCakes118_4acc440e4ea284240c4867d9e145e9bd.exe 32 PID 3036 wrote to memory of 2744 3036 JaffaCakes118_4acc440e4ea284240c4867d9e145e9bd.exe 32 PID 3036 wrote to memory of 2744 3036 JaffaCakes118_4acc440e4ea284240c4867d9e145e9bd.exe 32
Processes
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C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_4acc440e4ea284240c4867d9e145e9bd.exe"C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_4acc440e4ea284240c4867d9e145e9bd.exe"1⤵
- Loads dropped DLL
- System Location Discovery: System Language Discovery
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:3036 -
C:\Windows\SysWOW64\svchost.exeC:\Windows\system32\svchost.exe2⤵
- System Location Discovery: System Language Discovery
- Suspicious use of AdjustPrivilegeToken
PID:2348
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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:2304
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C:\Users\Admin\AppData\Local\Temp\extesvxeicibyiit.exe"C:\Users\Admin\AppData\Local\Temp\extesvxeicibyiit.exe"2⤵
- Executes dropped EXE
- System Location Discovery: System Language Discovery
- Suspicious use of AdjustPrivilegeToken
PID:2744
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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
Loading Replay Monitor...
Downloads
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Filesize
100KB
MD54acc440e4ea284240c4867d9e145e9bd
SHA1a11b5bb2026487f1e358cb5c2d7c86ebe707462c
SHA256d5d48dd13e45a2ed52803de07af6c59b2933dc6e5398d6b880bc477c2c873ea4
SHA512cd06151f33c96560a89b1c150d6eb9145cec321fa107922ae9f76b9b6b0cdc729d09324730cf4146ea457abfb54537055df583bcfbf0011ec42da2af9ae88626