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Analysis
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max time kernel
150s -
max time network
143s -
platform
windows7_x64 -
resource
win7-20240708-en -
resource tags
arch:x64arch:x86image:win7-20240708-enlocale:en-usos:windows7-x64system -
submitted
18/12/2024, 20:49
Static task
static1
Behavioral task
behavioral1
Sample
fd10d5881fbc2b6cbdc5b643d355b92b_JaffaCakes118.exe
Resource
win7-20240708-en
General
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Target
fd10d5881fbc2b6cbdc5b643d355b92b_JaffaCakes118.exe
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Size
101KB
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MD5
fd10d5881fbc2b6cbdc5b643d355b92b
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SHA1
1c3ad1a1a546e479b53de31dac5cd4944783b406
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SHA256
168fd5734ac0188a4f83e948abe0a7e95661137d8d8a5abc45071fe7b538fe28
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SHA512
98c5a5bd27777712c1bb399f95d05b03bbe403ba502b0cc7275159046c9c2646b3f9166c222b92685297a7598e1f2c4962a1e2c40cd1a3b47e66100399018b0a
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SSDEEP
3072:IHZoTWiIyhD6EuGf7sHwTL/Fk8jwaaHw7Koj4r3w:oZOWidRZf7sHK
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\\vhdklxnv\\enrvkyyd.exe" svchost.exe -
Ramnit family
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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 created C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\enrvkyyd.exe svchost.exe File opened for modification C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\enrvkyyd.exe svchost.exe -
Executes dropped EXE 1 IoCs
pid Process 1668 vspuxaysytyxwslr.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 4 IoCs
pid Process 2972 fd10d5881fbc2b6cbdc5b643d355b92b_JaffaCakes118.exe 2972 fd10d5881fbc2b6cbdc5b643d355b92b_JaffaCakes118.exe 2972 fd10d5881fbc2b6cbdc5b643d355b92b_JaffaCakes118.exe 2972 fd10d5881fbc2b6cbdc5b643d355b92b_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\EnrVkyyd = "C:\\Users\\Admin\\AppData\\Local\\vhdklxnv\\enrvkyyd.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 vspuxaysytyxwslr.exe Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language fd10d5881fbc2b6cbdc5b643d355b92b_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 2752 svchost.exe 2752 svchost.exe 2752 svchost.exe 2752 svchost.exe 2752 svchost.exe 2752 svchost.exe 2752 svchost.exe 2752 svchost.exe 2752 svchost.exe 2752 svchost.exe 2752 svchost.exe 2752 svchost.exe 2752 svchost.exe 2752 svchost.exe 2752 svchost.exe 2752 svchost.exe 2752 svchost.exe 2752 svchost.exe 2752 svchost.exe 2752 svchost.exe 2752 svchost.exe 2752 svchost.exe 2752 svchost.exe 2752 svchost.exe 2752 svchost.exe 2752 svchost.exe 2752 svchost.exe 2752 svchost.exe 2752 svchost.exe 2752 svchost.exe 2752 svchost.exe 2752 svchost.exe 2752 svchost.exe 2752 svchost.exe 2752 svchost.exe 2752 svchost.exe 2752 svchost.exe 2752 svchost.exe 2752 svchost.exe 2752 svchost.exe 2752 svchost.exe 2752 svchost.exe 2752 svchost.exe 2752 svchost.exe 2752 svchost.exe 2752 svchost.exe 2752 svchost.exe 2752 svchost.exe 2752 svchost.exe 2752 svchost.exe 2752 svchost.exe 2752 svchost.exe 2752 svchost.exe 2752 svchost.exe 2752 svchost.exe 2752 svchost.exe 2752 svchost.exe 2752 svchost.exe 2752 svchost.exe 2752 svchost.exe 2752 svchost.exe 2752 svchost.exe 2752 svchost.exe 2752 svchost.exe -
Suspicious behavior: LoadsDriver 1 IoCs
pid Process 472 Process not Found -
Suspicious use of AdjustPrivilegeToken 64 IoCs
description pid Process Token: SeSecurityPrivilege 2972 fd10d5881fbc2b6cbdc5b643d355b92b_JaffaCakes118.exe Token: SeDebugPrivilege 2972 fd10d5881fbc2b6cbdc5b643d355b92b_JaffaCakes118.exe Token: SeSecurityPrivilege 2516 svchost.exe Token: SeSecurityPrivilege 2752 svchost.exe Token: SeDebugPrivilege 2752 svchost.exe Token: SeRestorePrivilege 2752 svchost.exe Token: SeBackupPrivilege 2752 svchost.exe Token: SeRestorePrivilege 2752 svchost.exe Token: SeBackupPrivilege 2752 svchost.exe Token: SeRestorePrivilege 2752 svchost.exe Token: SeBackupPrivilege 2752 svchost.exe Token: SeRestorePrivilege 2752 svchost.exe Token: SeBackupPrivilege 2752 svchost.exe Token: SeRestorePrivilege 2752 svchost.exe Token: SeBackupPrivilege 2752 svchost.exe Token: SeRestorePrivilege 2752 svchost.exe Token: SeBackupPrivilege 2752 svchost.exe Token: SeSecurityPrivilege 1668 vspuxaysytyxwslr.exe Token: SeLoadDriverPrivilege 1668 vspuxaysytyxwslr.exe Token: SeRestorePrivilege 2752 svchost.exe Token: SeBackupPrivilege 2752 svchost.exe Token: SeRestorePrivilege 2752 svchost.exe Token: SeBackupPrivilege 2752 svchost.exe Token: SeRestorePrivilege 2752 svchost.exe Token: SeBackupPrivilege 2752 svchost.exe Token: SeRestorePrivilege 2752 svchost.exe Token: SeBackupPrivilege 2752 svchost.exe Token: SeRestorePrivilege 2752 svchost.exe Token: SeBackupPrivilege 2752 svchost.exe Token: SeRestorePrivilege 2752 svchost.exe Token: SeBackupPrivilege 2752 svchost.exe Token: SeRestorePrivilege 2752 svchost.exe Token: SeBackupPrivilege 2752 svchost.exe Token: SeRestorePrivilege 2752 svchost.exe Token: SeBackupPrivilege 2752 svchost.exe Token: SeRestorePrivilege 2752 svchost.exe Token: SeBackupPrivilege 2752 svchost.exe Token: SeRestorePrivilege 2752 svchost.exe Token: SeBackupPrivilege 2752 svchost.exe Token: SeRestorePrivilege 2752 svchost.exe Token: SeBackupPrivilege 2752 svchost.exe Token: SeRestorePrivilege 2752 svchost.exe Token: SeBackupPrivilege 2752 svchost.exe Token: SeRestorePrivilege 2752 svchost.exe Token: SeBackupPrivilege 2752 svchost.exe Token: SeRestorePrivilege 2752 svchost.exe Token: SeBackupPrivilege 2752 svchost.exe Token: SeRestorePrivilege 2752 svchost.exe Token: SeBackupPrivilege 2752 svchost.exe Token: SeRestorePrivilege 2752 svchost.exe Token: SeBackupPrivilege 2752 svchost.exe Token: SeRestorePrivilege 2752 svchost.exe Token: SeBackupPrivilege 2752 svchost.exe Token: SeRestorePrivilege 2752 svchost.exe Token: SeBackupPrivilege 2752 svchost.exe Token: SeRestorePrivilege 2752 svchost.exe Token: SeBackupPrivilege 2752 svchost.exe Token: SeRestorePrivilege 2752 svchost.exe Token: SeBackupPrivilege 2752 svchost.exe Token: SeRestorePrivilege 2752 svchost.exe Token: SeBackupPrivilege 2752 svchost.exe Token: SeRestorePrivilege 2752 svchost.exe Token: SeBackupPrivilege 2752 svchost.exe Token: SeRestorePrivilege 2752 svchost.exe -
Suspicious use of WriteProcessMemory 24 IoCs
description pid Process procid_target PID 2972 wrote to memory of 2516 2972 fd10d5881fbc2b6cbdc5b643d355b92b_JaffaCakes118.exe 30 PID 2972 wrote to memory of 2516 2972 fd10d5881fbc2b6cbdc5b643d355b92b_JaffaCakes118.exe 30 PID 2972 wrote to memory of 2516 2972 fd10d5881fbc2b6cbdc5b643d355b92b_JaffaCakes118.exe 30 PID 2972 wrote to memory of 2516 2972 fd10d5881fbc2b6cbdc5b643d355b92b_JaffaCakes118.exe 30 PID 2972 wrote to memory of 2516 2972 fd10d5881fbc2b6cbdc5b643d355b92b_JaffaCakes118.exe 30 PID 2972 wrote to memory of 2516 2972 fd10d5881fbc2b6cbdc5b643d355b92b_JaffaCakes118.exe 30 PID 2972 wrote to memory of 2516 2972 fd10d5881fbc2b6cbdc5b643d355b92b_JaffaCakes118.exe 30 PID 2972 wrote to memory of 2516 2972 fd10d5881fbc2b6cbdc5b643d355b92b_JaffaCakes118.exe 30 PID 2972 wrote to memory of 2516 2972 fd10d5881fbc2b6cbdc5b643d355b92b_JaffaCakes118.exe 30 PID 2972 wrote to memory of 2516 2972 fd10d5881fbc2b6cbdc5b643d355b92b_JaffaCakes118.exe 30 PID 2972 wrote to memory of 2752 2972 fd10d5881fbc2b6cbdc5b643d355b92b_JaffaCakes118.exe 31 PID 2972 wrote to memory of 2752 2972 fd10d5881fbc2b6cbdc5b643d355b92b_JaffaCakes118.exe 31 PID 2972 wrote to memory of 2752 2972 fd10d5881fbc2b6cbdc5b643d355b92b_JaffaCakes118.exe 31 PID 2972 wrote to memory of 2752 2972 fd10d5881fbc2b6cbdc5b643d355b92b_JaffaCakes118.exe 31 PID 2972 wrote to memory of 2752 2972 fd10d5881fbc2b6cbdc5b643d355b92b_JaffaCakes118.exe 31 PID 2972 wrote to memory of 2752 2972 fd10d5881fbc2b6cbdc5b643d355b92b_JaffaCakes118.exe 31 PID 2972 wrote to memory of 2752 2972 fd10d5881fbc2b6cbdc5b643d355b92b_JaffaCakes118.exe 31 PID 2972 wrote to memory of 2752 2972 fd10d5881fbc2b6cbdc5b643d355b92b_JaffaCakes118.exe 31 PID 2972 wrote to memory of 2752 2972 fd10d5881fbc2b6cbdc5b643d355b92b_JaffaCakes118.exe 31 PID 2972 wrote to memory of 2752 2972 fd10d5881fbc2b6cbdc5b643d355b92b_JaffaCakes118.exe 31 PID 2972 wrote to memory of 1668 2972 fd10d5881fbc2b6cbdc5b643d355b92b_JaffaCakes118.exe 32 PID 2972 wrote to memory of 1668 2972 fd10d5881fbc2b6cbdc5b643d355b92b_JaffaCakes118.exe 32 PID 2972 wrote to memory of 1668 2972 fd10d5881fbc2b6cbdc5b643d355b92b_JaffaCakes118.exe 32 PID 2972 wrote to memory of 1668 2972 fd10d5881fbc2b6cbdc5b643d355b92b_JaffaCakes118.exe 32
Processes
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C:\Users\Admin\AppData\Local\Temp\fd10d5881fbc2b6cbdc5b643d355b92b_JaffaCakes118.exe"C:\Users\Admin\AppData\Local\Temp\fd10d5881fbc2b6cbdc5b643d355b92b_JaffaCakes118.exe"1⤵
- Loads dropped DLL
- System Location Discovery: System Language Discovery
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:2972 -
C:\Windows\SysWOW64\svchost.exeC:\Windows\system32\svchost.exe2⤵
- System Location Discovery: System Language Discovery
- Suspicious use of AdjustPrivilegeToken
PID:2516
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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:2752
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C:\Users\Admin\AppData\Local\Temp\vspuxaysytyxwslr.exe"C:\Users\Admin\AppData\Local\Temp\vspuxaysytyxwslr.exe"2⤵
- Executes dropped EXE
- System Location Discovery: System Language Discovery
- Suspicious use of AdjustPrivilegeToken
PID:1668
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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
MD5fd10d5881fbc2b6cbdc5b643d355b92b
SHA11c3ad1a1a546e479b53de31dac5cd4944783b406
SHA256168fd5734ac0188a4f83e948abe0a7e95661137d8d8a5abc45071fe7b538fe28
SHA51298c5a5bd27777712c1bb399f95d05b03bbe403ba502b0cc7275159046c9c2646b3f9166c222b92685297a7598e1f2c4962a1e2c40cd1a3b47e66100399018b0a