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Analysis
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max time kernel
150s -
max time network
146s -
platform
windows7_x64 -
resource
win7-20240708-en -
resource tags
arch:x64arch:x86image:win7-20240708-enlocale:en-usos:windows7-x64system -
submitted
21/08/2024, 10:48
Static task
static1
1 signatures
Behavioral task
behavioral1
Sample
b32b87eb16adaa3eac40baeb8c9baaee_JaffaCakes118.exe
Resource
win7-20240708-en
windows7-x64
15 signatures
150 seconds
Behavioral task
behavioral2
Sample
b32b87eb16adaa3eac40baeb8c9baaee_JaffaCakes118.exe
Resource
win10v2004-20240802-en
windows10-2004-x64
2 signatures
150 seconds
General
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Target
b32b87eb16adaa3eac40baeb8c9baaee_JaffaCakes118.exe
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Size
110KB
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MD5
b32b87eb16adaa3eac40baeb8c9baaee
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SHA1
c5dad615e845f0b354213bf0849156307e334786
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SHA256
80de6354a52de42c89a4422c04efb7c937d096f19cc3b5a002d01c2ff722a80b
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SHA512
58b72a053d55bd20ec097cbfe2ca3bce3adf8ec94fc395cacf5541b291920817517bfc7838a94dcf7a8302b1d40014a239b0dc0d0bea7b4e2842540a026065f7
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SSDEEP
3072:vyOh1oxaWgoFoA2PSTCfmEvqOIx4J2vNbGfvGnd3gW5ZM4/ud:vyOvozgqJ2PSwdvGNdndPZMT
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\\mqcrhbaw\\uwterbjn.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\uwterbjn.exe svchost.exe File created C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\uwterbjn.exe svchost.exe -
Executes dropped EXE 1 IoCs
pid Process 2532 mbdavwvnnokqijbp.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 2292 b32b87eb16adaa3eac40baeb8c9baaee_JaffaCakes118.exe 2292 b32b87eb16adaa3eac40baeb8c9baaee_JaffaCakes118.exe 2292 b32b87eb16adaa3eac40baeb8c9baaee_JaffaCakes118.exe 2292 b32b87eb16adaa3eac40baeb8c9baaee_JaffaCakes118.exe -
Adds Run key to start application 2 TTPs 1 IoCs
description ioc Process Set value (str) \REGISTRY\USER\S-1-5-21-3551809350-4263495960-1443967649-1000\Software\Microsoft\Windows\CurrentVersion\Run\UwtErbjn = "C:\\Users\\Admin\\AppData\\Local\\mqcrhbaw\\uwterbjn.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 mbdavwvnnokqijbp.exe Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language b32b87eb16adaa3eac40baeb8c9baaee_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 1072 svchost.exe 1072 svchost.exe 1072 svchost.exe 1072 svchost.exe 1072 svchost.exe 1072 svchost.exe 1072 svchost.exe 1072 svchost.exe 1072 svchost.exe 1072 svchost.exe 1072 svchost.exe 1072 svchost.exe 1072 svchost.exe 1072 svchost.exe 1072 svchost.exe 1072 svchost.exe 1072 svchost.exe 1072 svchost.exe 1072 svchost.exe 1072 svchost.exe 1072 svchost.exe 1072 svchost.exe 1072 svchost.exe 1072 svchost.exe 1072 svchost.exe 1072 svchost.exe 1072 svchost.exe 1072 svchost.exe 1072 svchost.exe 1072 svchost.exe 1072 svchost.exe 1072 svchost.exe 1072 svchost.exe 1072 svchost.exe 1072 svchost.exe 1072 svchost.exe 1072 svchost.exe 1072 svchost.exe 1072 svchost.exe 1072 svchost.exe 1072 svchost.exe 1072 svchost.exe 1072 svchost.exe 1072 svchost.exe 1072 svchost.exe 1072 svchost.exe 1072 svchost.exe 1072 svchost.exe 1072 svchost.exe 1072 svchost.exe 1072 svchost.exe 1072 svchost.exe 1072 svchost.exe 1072 svchost.exe 1072 svchost.exe 1072 svchost.exe 1072 svchost.exe 1072 svchost.exe 1072 svchost.exe 1072 svchost.exe 1072 svchost.exe 1072 svchost.exe 1072 svchost.exe 1072 svchost.exe -
Suspicious behavior: LoadsDriver 1 IoCs
pid Process 472 Process not Found -
Suspicious use of AdjustPrivilegeToken 64 IoCs
description pid Process Token: SeSecurityPrivilege 2292 b32b87eb16adaa3eac40baeb8c9baaee_JaffaCakes118.exe Token: SeDebugPrivilege 2292 b32b87eb16adaa3eac40baeb8c9baaee_JaffaCakes118.exe Token: SeSecurityPrivilege 2000 svchost.exe Token: SeSecurityPrivilege 1072 svchost.exe Token: SeDebugPrivilege 1072 svchost.exe Token: SeRestorePrivilege 1072 svchost.exe Token: SeBackupPrivilege 1072 svchost.exe Token: SeRestorePrivilege 1072 svchost.exe Token: SeBackupPrivilege 1072 svchost.exe Token: SeRestorePrivilege 1072 svchost.exe Token: SeBackupPrivilege 1072 svchost.exe Token: SeRestorePrivilege 1072 svchost.exe Token: SeBackupPrivilege 1072 svchost.exe Token: SeRestorePrivilege 1072 svchost.exe Token: SeBackupPrivilege 1072 svchost.exe Token: SeRestorePrivilege 1072 svchost.exe Token: SeBackupPrivilege 1072 svchost.exe Token: SeSecurityPrivilege 2532 mbdavwvnnokqijbp.exe Token: SeLoadDriverPrivilege 2532 mbdavwvnnokqijbp.exe Token: SeRestorePrivilege 1072 svchost.exe Token: SeBackupPrivilege 1072 svchost.exe Token: SeRestorePrivilege 1072 svchost.exe Token: SeBackupPrivilege 1072 svchost.exe Token: SeRestorePrivilege 1072 svchost.exe Token: SeBackupPrivilege 1072 svchost.exe Token: SeRestorePrivilege 1072 svchost.exe Token: SeBackupPrivilege 1072 svchost.exe Token: SeRestorePrivilege 1072 svchost.exe Token: SeBackupPrivilege 1072 svchost.exe Token: SeRestorePrivilege 1072 svchost.exe Token: SeBackupPrivilege 1072 svchost.exe Token: SeRestorePrivilege 1072 svchost.exe Token: SeBackupPrivilege 1072 svchost.exe Token: SeRestorePrivilege 1072 svchost.exe Token: SeBackupPrivilege 1072 svchost.exe Token: SeRestorePrivilege 1072 svchost.exe Token: SeBackupPrivilege 1072 svchost.exe Token: SeRestorePrivilege 1072 svchost.exe Token: SeBackupPrivilege 1072 svchost.exe Token: SeRestorePrivilege 1072 svchost.exe Token: SeBackupPrivilege 1072 svchost.exe Token: SeRestorePrivilege 1072 svchost.exe Token: SeBackupPrivilege 1072 svchost.exe Token: SeRestorePrivilege 1072 svchost.exe Token: SeBackupPrivilege 1072 svchost.exe Token: SeRestorePrivilege 1072 svchost.exe Token: SeBackupPrivilege 1072 svchost.exe Token: SeRestorePrivilege 1072 svchost.exe Token: SeBackupPrivilege 1072 svchost.exe Token: SeRestorePrivilege 1072 svchost.exe Token: SeBackupPrivilege 1072 svchost.exe Token: SeRestorePrivilege 1072 svchost.exe Token: SeBackupPrivilege 1072 svchost.exe Token: SeRestorePrivilege 1072 svchost.exe Token: SeBackupPrivilege 1072 svchost.exe Token: SeRestorePrivilege 1072 svchost.exe Token: SeBackupPrivilege 1072 svchost.exe Token: SeRestorePrivilege 1072 svchost.exe Token: SeBackupPrivilege 1072 svchost.exe Token: SeRestorePrivilege 1072 svchost.exe Token: SeBackupPrivilege 1072 svchost.exe Token: SeRestorePrivilege 1072 svchost.exe Token: SeBackupPrivilege 1072 svchost.exe Token: SeRestorePrivilege 1072 svchost.exe -
Suspicious use of WriteProcessMemory 24 IoCs
description pid Process procid_target PID 2292 wrote to memory of 2000 2292 b32b87eb16adaa3eac40baeb8c9baaee_JaffaCakes118.exe 28 PID 2292 wrote to memory of 2000 2292 b32b87eb16adaa3eac40baeb8c9baaee_JaffaCakes118.exe 28 PID 2292 wrote to memory of 2000 2292 b32b87eb16adaa3eac40baeb8c9baaee_JaffaCakes118.exe 28 PID 2292 wrote to memory of 2000 2292 b32b87eb16adaa3eac40baeb8c9baaee_JaffaCakes118.exe 28 PID 2292 wrote to memory of 2000 2292 b32b87eb16adaa3eac40baeb8c9baaee_JaffaCakes118.exe 28 PID 2292 wrote to memory of 2000 2292 b32b87eb16adaa3eac40baeb8c9baaee_JaffaCakes118.exe 28 PID 2292 wrote to memory of 2000 2292 b32b87eb16adaa3eac40baeb8c9baaee_JaffaCakes118.exe 28 PID 2292 wrote to memory of 2000 2292 b32b87eb16adaa3eac40baeb8c9baaee_JaffaCakes118.exe 28 PID 2292 wrote to memory of 2000 2292 b32b87eb16adaa3eac40baeb8c9baaee_JaffaCakes118.exe 28 PID 2292 wrote to memory of 2000 2292 b32b87eb16adaa3eac40baeb8c9baaee_JaffaCakes118.exe 28 PID 2292 wrote to memory of 1072 2292 b32b87eb16adaa3eac40baeb8c9baaee_JaffaCakes118.exe 29 PID 2292 wrote to memory of 1072 2292 b32b87eb16adaa3eac40baeb8c9baaee_JaffaCakes118.exe 29 PID 2292 wrote to memory of 1072 2292 b32b87eb16adaa3eac40baeb8c9baaee_JaffaCakes118.exe 29 PID 2292 wrote to memory of 1072 2292 b32b87eb16adaa3eac40baeb8c9baaee_JaffaCakes118.exe 29 PID 2292 wrote to memory of 1072 2292 b32b87eb16adaa3eac40baeb8c9baaee_JaffaCakes118.exe 29 PID 2292 wrote to memory of 1072 2292 b32b87eb16adaa3eac40baeb8c9baaee_JaffaCakes118.exe 29 PID 2292 wrote to memory of 1072 2292 b32b87eb16adaa3eac40baeb8c9baaee_JaffaCakes118.exe 29 PID 2292 wrote to memory of 1072 2292 b32b87eb16adaa3eac40baeb8c9baaee_JaffaCakes118.exe 29 PID 2292 wrote to memory of 1072 2292 b32b87eb16adaa3eac40baeb8c9baaee_JaffaCakes118.exe 29 PID 2292 wrote to memory of 1072 2292 b32b87eb16adaa3eac40baeb8c9baaee_JaffaCakes118.exe 29 PID 2292 wrote to memory of 2532 2292 b32b87eb16adaa3eac40baeb8c9baaee_JaffaCakes118.exe 30 PID 2292 wrote to memory of 2532 2292 b32b87eb16adaa3eac40baeb8c9baaee_JaffaCakes118.exe 30 PID 2292 wrote to memory of 2532 2292 b32b87eb16adaa3eac40baeb8c9baaee_JaffaCakes118.exe 30 PID 2292 wrote to memory of 2532 2292 b32b87eb16adaa3eac40baeb8c9baaee_JaffaCakes118.exe 30
Processes
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C:\Users\Admin\AppData\Local\Temp\b32b87eb16adaa3eac40baeb8c9baaee_JaffaCakes118.exe"C:\Users\Admin\AppData\Local\Temp\b32b87eb16adaa3eac40baeb8c9baaee_JaffaCakes118.exe"1⤵
- Loads dropped DLL
- System Location Discovery: System Language Discovery
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:2292 -
C:\Windows\SysWOW64\svchost.exeC:\Windows\system32\svchost.exe2⤵
- System Location Discovery: System Language Discovery
- Suspicious use of AdjustPrivilegeToken
PID:2000
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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:1072
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C:\Users\Admin\AppData\Local\Temp\mbdavwvnnokqijbp.exe"C:\Users\Admin\AppData\Local\Temp\mbdavwvnnokqijbp.exe"2⤵
- Executes dropped EXE
- System Location Discovery: System Language Discovery
- Suspicious use of AdjustPrivilegeToken
PID:2532
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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
110KB
MD5b32b87eb16adaa3eac40baeb8c9baaee
SHA1c5dad615e845f0b354213bf0849156307e334786
SHA25680de6354a52de42c89a4422c04efb7c937d096f19cc3b5a002d01c2ff722a80b
SHA51258b72a053d55bd20ec097cbfe2ca3bce3adf8ec94fc395cacf5541b291920817517bfc7838a94dcf7a8302b1d40014a239b0dc0d0bea7b4e2842540a026065f7