Analysis
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max time kernel
150s -
max time network
142s -
platform
windows7_x64 -
resource
win7-20240729-en -
resource tags
arch:x64arch:x86image:win7-20240729-enlocale:en-usos:windows7-x64system -
submitted
18/08/2024, 08:52
Static task
static1
1 signatures
Behavioral task
behavioral1
Sample
a6243d6db924f3a1b34cafc3b9bc5163_JaffaCakes118.exe
Resource
win7-20240729-en
windows7-x64
15 signatures
150 seconds
General
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Target
a6243d6db924f3a1b34cafc3b9bc5163_JaffaCakes118.exe
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Size
99KB
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MD5
a6243d6db924f3a1b34cafc3b9bc5163
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SHA1
5b4e9109876c1129813f52365344ca54dc77a3aa
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SHA256
c88a8f4362929f801e4de2e9a056c0d81f09bd4545217be34786783f8316f28c
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SHA512
8abfe25c4c761b096f5f4f4697331284fa2c4aca40330831a5c43498c467955ee7f8e8b15b5bfbf73ed0b3ab70fe571d464ef4e659ced2229d891cedddc7fcd9
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SSDEEP
3072:TCuvo0N7CdRp1wHa8tORcXChoqGVk8jwaaHw7Koj4rDM+l7:OuvZgnp1A9WcXuDR
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\\rbifqgsj\\ahaubgca.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\ahaubgca.exe svchost.exe File created C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\ahaubgca.exe svchost.exe -
Executes dropped EXE 1 IoCs
pid Process 2736 rmupgieguxfysrtc.exe -
Impair Defenses: Safe Mode Boot 1 TTPs 3 IoCs
description ioc Process Key deleted \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\SafeBoot\Minimal\Power svchost.exe Key deleted \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\SafeBoot\Minimal\WinDefend svchost.exe Key deleted \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\SafeBoot\Minimal\ProfSvc svchost.exe -
Loads dropped DLL 5 IoCs
pid Process 2012 a6243d6db924f3a1b34cafc3b9bc5163_JaffaCakes118.exe 2012 a6243d6db924f3a1b34cafc3b9bc5163_JaffaCakes118.exe 2012 a6243d6db924f3a1b34cafc3b9bc5163_JaffaCakes118.exe 2012 a6243d6db924f3a1b34cafc3b9bc5163_JaffaCakes118.exe 2012 a6243d6db924f3a1b34cafc3b9bc5163_JaffaCakes118.exe -
Adds Run key to start application 2 TTPs 1 IoCs
description ioc Process Set value (str) \REGISTRY\USER\S-1-5-21-2257386474-3982792636-3902186748-1000\Software\Microsoft\Windows\CurrentVersion\Run\AhaUbgca = "C:\\Users\\Admin\\AppData\\Local\\rbifqgsj\\ahaubgca.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 a6243d6db924f3a1b34cafc3b9bc5163_JaffaCakes118.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 rmupgieguxfysrtc.exe -
Suspicious behavior: EnumeratesProcesses 64 IoCs
pid Process 2792 svchost.exe 2792 svchost.exe 2792 svchost.exe 2792 svchost.exe 2792 svchost.exe 2792 svchost.exe 2792 svchost.exe 2792 svchost.exe 2792 svchost.exe 2792 svchost.exe 2792 svchost.exe 2792 svchost.exe 2792 svchost.exe 2792 svchost.exe 2792 svchost.exe 2792 svchost.exe 2792 svchost.exe 2792 svchost.exe 2792 svchost.exe 2792 svchost.exe 2792 svchost.exe 2792 svchost.exe 2792 svchost.exe 2792 svchost.exe 2792 svchost.exe 2792 svchost.exe 2792 svchost.exe 2792 svchost.exe 2792 svchost.exe 2792 svchost.exe 2792 svchost.exe 2792 svchost.exe 2792 svchost.exe 2792 svchost.exe 2792 svchost.exe 2792 svchost.exe 2792 svchost.exe 2792 svchost.exe 2792 svchost.exe 2792 svchost.exe 2792 svchost.exe 2792 svchost.exe 2792 svchost.exe 2792 svchost.exe 2792 svchost.exe 2792 svchost.exe 2792 svchost.exe 2792 svchost.exe 2792 svchost.exe 2792 svchost.exe 2792 svchost.exe 2792 svchost.exe 2792 svchost.exe 2792 svchost.exe 2792 svchost.exe 2792 svchost.exe 2792 svchost.exe 2792 svchost.exe 2792 svchost.exe 2792 svchost.exe 2792 svchost.exe 2792 svchost.exe 2792 svchost.exe 2792 svchost.exe -
Suspicious behavior: LoadsDriver 1 IoCs
pid Process 476 Process not Found -
Suspicious use of AdjustPrivilegeToken 64 IoCs
description pid Process Token: SeSecurityPrivilege 2012 a6243d6db924f3a1b34cafc3b9bc5163_JaffaCakes118.exe Token: SeDebugPrivilege 2012 a6243d6db924f3a1b34cafc3b9bc5163_JaffaCakes118.exe Token: SeSecurityPrivilege 1404 svchost.exe Token: SeSecurityPrivilege 2792 svchost.exe Token: SeDebugPrivilege 2792 svchost.exe Token: SeRestorePrivilege 2792 svchost.exe Token: SeBackupPrivilege 2792 svchost.exe Token: SeRestorePrivilege 2792 svchost.exe Token: SeBackupPrivilege 2792 svchost.exe Token: SeRestorePrivilege 2792 svchost.exe Token: SeBackupPrivilege 2792 svchost.exe Token: SeRestorePrivilege 2792 svchost.exe Token: SeBackupPrivilege 2792 svchost.exe Token: SeRestorePrivilege 2792 svchost.exe Token: SeBackupPrivilege 2792 svchost.exe Token: SeRestorePrivilege 2792 svchost.exe Token: SeBackupPrivilege 2792 svchost.exe Token: SeSecurityPrivilege 2736 rmupgieguxfysrtc.exe Token: SeLoadDriverPrivilege 2736 rmupgieguxfysrtc.exe Token: SeRestorePrivilege 2792 svchost.exe Token: SeBackupPrivilege 2792 svchost.exe Token: SeRestorePrivilege 2792 svchost.exe Token: SeBackupPrivilege 2792 svchost.exe Token: SeRestorePrivilege 2792 svchost.exe Token: SeBackupPrivilege 2792 svchost.exe Token: SeRestorePrivilege 2792 svchost.exe Token: SeBackupPrivilege 2792 svchost.exe Token: SeRestorePrivilege 2792 svchost.exe Token: SeBackupPrivilege 2792 svchost.exe Token: SeRestorePrivilege 2792 svchost.exe Token: SeBackupPrivilege 2792 svchost.exe Token: SeRestorePrivilege 2792 svchost.exe Token: SeBackupPrivilege 2792 svchost.exe Token: SeRestorePrivilege 2792 svchost.exe Token: SeBackupPrivilege 2792 svchost.exe Token: SeRestorePrivilege 2792 svchost.exe Token: SeBackupPrivilege 2792 svchost.exe Token: SeRestorePrivilege 2792 svchost.exe Token: SeBackupPrivilege 2792 svchost.exe Token: SeRestorePrivilege 2792 svchost.exe Token: SeBackupPrivilege 2792 svchost.exe Token: SeRestorePrivilege 2792 svchost.exe Token: SeBackupPrivilege 2792 svchost.exe Token: SeRestorePrivilege 2792 svchost.exe Token: SeBackupPrivilege 2792 svchost.exe Token: SeRestorePrivilege 2792 svchost.exe Token: SeBackupPrivilege 2792 svchost.exe Token: SeRestorePrivilege 2792 svchost.exe Token: SeBackupPrivilege 2792 svchost.exe Token: SeRestorePrivilege 2792 svchost.exe Token: SeBackupPrivilege 2792 svchost.exe Token: SeRestorePrivilege 2792 svchost.exe Token: SeBackupPrivilege 2792 svchost.exe Token: SeRestorePrivilege 2792 svchost.exe Token: SeBackupPrivilege 2792 svchost.exe Token: SeRestorePrivilege 2792 svchost.exe Token: SeBackupPrivilege 2792 svchost.exe Token: SeRestorePrivilege 2792 svchost.exe Token: SeBackupPrivilege 2792 svchost.exe Token: SeRestorePrivilege 2792 svchost.exe Token: SeBackupPrivilege 2792 svchost.exe Token: SeRestorePrivilege 2792 svchost.exe Token: SeBackupPrivilege 2792 svchost.exe Token: SeRestorePrivilege 2792 svchost.exe -
Suspicious use of WriteProcessMemory 24 IoCs
description pid Process procid_target PID 2012 wrote to memory of 1404 2012 a6243d6db924f3a1b34cafc3b9bc5163_JaffaCakes118.exe 30 PID 2012 wrote to memory of 1404 2012 a6243d6db924f3a1b34cafc3b9bc5163_JaffaCakes118.exe 30 PID 2012 wrote to memory of 1404 2012 a6243d6db924f3a1b34cafc3b9bc5163_JaffaCakes118.exe 30 PID 2012 wrote to memory of 1404 2012 a6243d6db924f3a1b34cafc3b9bc5163_JaffaCakes118.exe 30 PID 2012 wrote to memory of 1404 2012 a6243d6db924f3a1b34cafc3b9bc5163_JaffaCakes118.exe 30 PID 2012 wrote to memory of 1404 2012 a6243d6db924f3a1b34cafc3b9bc5163_JaffaCakes118.exe 30 PID 2012 wrote to memory of 1404 2012 a6243d6db924f3a1b34cafc3b9bc5163_JaffaCakes118.exe 30 PID 2012 wrote to memory of 1404 2012 a6243d6db924f3a1b34cafc3b9bc5163_JaffaCakes118.exe 30 PID 2012 wrote to memory of 1404 2012 a6243d6db924f3a1b34cafc3b9bc5163_JaffaCakes118.exe 30 PID 2012 wrote to memory of 1404 2012 a6243d6db924f3a1b34cafc3b9bc5163_JaffaCakes118.exe 30 PID 2012 wrote to memory of 2792 2012 a6243d6db924f3a1b34cafc3b9bc5163_JaffaCakes118.exe 31 PID 2012 wrote to memory of 2792 2012 a6243d6db924f3a1b34cafc3b9bc5163_JaffaCakes118.exe 31 PID 2012 wrote to memory of 2792 2012 a6243d6db924f3a1b34cafc3b9bc5163_JaffaCakes118.exe 31 PID 2012 wrote to memory of 2792 2012 a6243d6db924f3a1b34cafc3b9bc5163_JaffaCakes118.exe 31 PID 2012 wrote to memory of 2792 2012 a6243d6db924f3a1b34cafc3b9bc5163_JaffaCakes118.exe 31 PID 2012 wrote to memory of 2792 2012 a6243d6db924f3a1b34cafc3b9bc5163_JaffaCakes118.exe 31 PID 2012 wrote to memory of 2792 2012 a6243d6db924f3a1b34cafc3b9bc5163_JaffaCakes118.exe 31 PID 2012 wrote to memory of 2792 2012 a6243d6db924f3a1b34cafc3b9bc5163_JaffaCakes118.exe 31 PID 2012 wrote to memory of 2792 2012 a6243d6db924f3a1b34cafc3b9bc5163_JaffaCakes118.exe 31 PID 2012 wrote to memory of 2792 2012 a6243d6db924f3a1b34cafc3b9bc5163_JaffaCakes118.exe 31 PID 2012 wrote to memory of 2736 2012 a6243d6db924f3a1b34cafc3b9bc5163_JaffaCakes118.exe 32 PID 2012 wrote to memory of 2736 2012 a6243d6db924f3a1b34cafc3b9bc5163_JaffaCakes118.exe 32 PID 2012 wrote to memory of 2736 2012 a6243d6db924f3a1b34cafc3b9bc5163_JaffaCakes118.exe 32 PID 2012 wrote to memory of 2736 2012 a6243d6db924f3a1b34cafc3b9bc5163_JaffaCakes118.exe 32
Processes
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C:\Users\Admin\AppData\Local\Temp\a6243d6db924f3a1b34cafc3b9bc5163_JaffaCakes118.exe"C:\Users\Admin\AppData\Local\Temp\a6243d6db924f3a1b34cafc3b9bc5163_JaffaCakes118.exe"1⤵
- Loads dropped DLL
- System Location Discovery: System Language Discovery
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:2012 -
C:\Windows\SysWOW64\svchost.exeC:\Windows\system32\svchost.exe2⤵
- System Location Discovery: System Language Discovery
- Suspicious use of AdjustPrivilegeToken
PID:1404
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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:2792
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C:\Users\Admin\AppData\Local\Temp\rmupgieguxfysrtc.exe"C:\Users\Admin\AppData\Local\Temp\rmupgieguxfysrtc.exe"2⤵
- Executes dropped EXE
- System Location Discovery: System Language Discovery
- Suspicious use of AdjustPrivilegeToken
PID:2736
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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
99KB
MD5a6243d6db924f3a1b34cafc3b9bc5163
SHA15b4e9109876c1129813f52365344ca54dc77a3aa
SHA256c88a8f4362929f801e4de2e9a056c0d81f09bd4545217be34786783f8316f28c
SHA5128abfe25c4c761b096f5f4f4697331284fa2c4aca40330831a5c43498c467955ee7f8e8b15b5bfbf73ed0b3ab70fe571d464ef4e659ced2229d891cedddc7fcd9