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Analysis
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max time kernel
150s -
max time network
142s -
platform
windows7_x64 -
resource
win7-20240419-en -
resource tags
arch:x64arch:x86image:win7-20240419-enlocale:en-usos:windows7-x64system -
submitted
01/07/2024, 18:10
Static task
static1
1 signatures
Behavioral task
behavioral1
Sample
1bff0277cb535b9b783e26ebe5de79dc_JaffaCakes118.exe
Resource
win7-20240419-en
windows7-x64
14 signatures
150 seconds
Behavioral task
behavioral2
Sample
1bff0277cb535b9b783e26ebe5de79dc_JaffaCakes118.exe
Resource
win10v2004-20240611-en
windows10-2004-x64
1 signatures
150 seconds
General
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Target
1bff0277cb535b9b783e26ebe5de79dc_JaffaCakes118.exe
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Size
110KB
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MD5
1bff0277cb535b9b783e26ebe5de79dc
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SHA1
3a8cce2dba73f7b3b119c118031c12609a640bae
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SHA256
cf438740773106890e340de6343bd2afdb3083dbf1926528ed77c61deb9d080c
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SHA512
2db7a18aa067fe985a0fe897c0edb25e3e1222104267cb007aab05d15b531e0970e41b9693ac856569fc8349492df8a779de543ab975d8b4ff3cb9ae26adf05d
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SSDEEP
3072:C0Ai7QUjsct/sdK7WbjqO4x4J2vNbGfvGnd3gW5ZM4/ur:C0rQMCZWNdndPZMTr
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\\wladqdwe\\frrsbggr.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\frrsbggr.exe svchost.exe File created C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\frrsbggr.exe svchost.exe -
Executes dropped EXE 1 IoCs
pid Process 1412 wwpndifbeukyxkpi.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 2440 1bff0277cb535b9b783e26ebe5de79dc_JaffaCakes118.exe 2440 1bff0277cb535b9b783e26ebe5de79dc_JaffaCakes118.exe 2440 1bff0277cb535b9b783e26ebe5de79dc_JaffaCakes118.exe 2440 1bff0277cb535b9b783e26ebe5de79dc_JaffaCakes118.exe -
Adds Run key to start application 2 TTPs 1 IoCs
description ioc Process Set value (str) \REGISTRY\USER\S-1-5-21-481678230-3773327859-3495911762-1000\Software\Microsoft\Windows\CurrentVersion\Run\FrrSbggr = "C:\\Users\\Admin\\AppData\\Local\\wladqdwe\\frrsbggr.exe" svchost.exe -
Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).
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Suspicious behavior: EnumeratesProcesses 64 IoCs
pid Process 2896 svchost.exe 2896 svchost.exe 2896 svchost.exe 2896 svchost.exe 2896 svchost.exe 2896 svchost.exe 2896 svchost.exe 2896 svchost.exe 2896 svchost.exe 2896 svchost.exe 2896 svchost.exe 2896 svchost.exe 2896 svchost.exe 2896 svchost.exe 2896 svchost.exe 2896 svchost.exe 2896 svchost.exe 2896 svchost.exe 2896 svchost.exe 2896 svchost.exe 2896 svchost.exe 2896 svchost.exe 2896 svchost.exe 2896 svchost.exe 2896 svchost.exe 2896 svchost.exe 2896 svchost.exe 2896 svchost.exe 2896 svchost.exe 2896 svchost.exe 2896 svchost.exe 2896 svchost.exe 2896 svchost.exe 2896 svchost.exe 2896 svchost.exe 2896 svchost.exe 2896 svchost.exe 2896 svchost.exe 2896 svchost.exe 2896 svchost.exe 2896 svchost.exe 2896 svchost.exe 2896 svchost.exe 2896 svchost.exe 2896 svchost.exe 2896 svchost.exe 2896 svchost.exe 2896 svchost.exe 2896 svchost.exe 2896 svchost.exe 2896 svchost.exe 2896 svchost.exe 2896 svchost.exe 2896 svchost.exe 2896 svchost.exe 2896 svchost.exe 2896 svchost.exe 2896 svchost.exe 2896 svchost.exe 2896 svchost.exe 2896 svchost.exe 2896 svchost.exe 2896 svchost.exe 2896 svchost.exe -
Suspicious behavior: LoadsDriver 1 IoCs
pid Process 476 Process not Found -
Suspicious use of AdjustPrivilegeToken 64 IoCs
description pid Process Token: SeSecurityPrivilege 2440 1bff0277cb535b9b783e26ebe5de79dc_JaffaCakes118.exe Token: SeDebugPrivilege 2440 1bff0277cb535b9b783e26ebe5de79dc_JaffaCakes118.exe Token: SeSecurityPrivilege 268 svchost.exe Token: SeSecurityPrivilege 2896 svchost.exe Token: SeDebugPrivilege 2896 svchost.exe Token: SeRestorePrivilege 2896 svchost.exe Token: SeBackupPrivilege 2896 svchost.exe Token: SeRestorePrivilege 2896 svchost.exe Token: SeBackupPrivilege 2896 svchost.exe Token: SeRestorePrivilege 2896 svchost.exe Token: SeBackupPrivilege 2896 svchost.exe Token: SeRestorePrivilege 2896 svchost.exe Token: SeBackupPrivilege 2896 svchost.exe Token: SeRestorePrivilege 2896 svchost.exe Token: SeBackupPrivilege 2896 svchost.exe Token: SeRestorePrivilege 2896 svchost.exe Token: SeBackupPrivilege 2896 svchost.exe Token: SeSecurityPrivilege 1412 wwpndifbeukyxkpi.exe Token: SeLoadDriverPrivilege 1412 wwpndifbeukyxkpi.exe Token: SeRestorePrivilege 2896 svchost.exe Token: SeBackupPrivilege 2896 svchost.exe Token: SeRestorePrivilege 2896 svchost.exe Token: SeBackupPrivilege 2896 svchost.exe Token: SeRestorePrivilege 2896 svchost.exe Token: SeBackupPrivilege 2896 svchost.exe Token: SeRestorePrivilege 2896 svchost.exe Token: SeBackupPrivilege 2896 svchost.exe Token: SeRestorePrivilege 2896 svchost.exe Token: SeBackupPrivilege 2896 svchost.exe Token: SeRestorePrivilege 2896 svchost.exe Token: SeBackupPrivilege 2896 svchost.exe Token: SeRestorePrivilege 2896 svchost.exe Token: SeBackupPrivilege 2896 svchost.exe Token: SeRestorePrivilege 2896 svchost.exe Token: SeBackupPrivilege 2896 svchost.exe Token: SeRestorePrivilege 2896 svchost.exe Token: SeBackupPrivilege 2896 svchost.exe Token: SeRestorePrivilege 2896 svchost.exe Token: SeBackupPrivilege 2896 svchost.exe Token: SeRestorePrivilege 2896 svchost.exe Token: SeBackupPrivilege 2896 svchost.exe Token: SeRestorePrivilege 2896 svchost.exe Token: SeBackupPrivilege 2896 svchost.exe Token: SeRestorePrivilege 2896 svchost.exe Token: SeBackupPrivilege 2896 svchost.exe Token: SeRestorePrivilege 2896 svchost.exe Token: SeBackupPrivilege 2896 svchost.exe Token: SeRestorePrivilege 2896 svchost.exe Token: SeBackupPrivilege 2896 svchost.exe Token: SeRestorePrivilege 2896 svchost.exe Token: SeBackupPrivilege 2896 svchost.exe Token: SeRestorePrivilege 2896 svchost.exe Token: SeBackupPrivilege 2896 svchost.exe Token: SeRestorePrivilege 2896 svchost.exe Token: SeBackupPrivilege 2896 svchost.exe Token: SeRestorePrivilege 2896 svchost.exe Token: SeBackupPrivilege 2896 svchost.exe Token: SeRestorePrivilege 2896 svchost.exe Token: SeBackupPrivilege 2896 svchost.exe Token: SeRestorePrivilege 2896 svchost.exe Token: SeBackupPrivilege 2896 svchost.exe Token: SeRestorePrivilege 2896 svchost.exe Token: SeBackupPrivilege 2896 svchost.exe Token: SeRestorePrivilege 2896 svchost.exe -
Suspicious use of WriteProcessMemory 24 IoCs
description pid Process procid_target PID 2440 wrote to memory of 268 2440 1bff0277cb535b9b783e26ebe5de79dc_JaffaCakes118.exe 28 PID 2440 wrote to memory of 268 2440 1bff0277cb535b9b783e26ebe5de79dc_JaffaCakes118.exe 28 PID 2440 wrote to memory of 268 2440 1bff0277cb535b9b783e26ebe5de79dc_JaffaCakes118.exe 28 PID 2440 wrote to memory of 268 2440 1bff0277cb535b9b783e26ebe5de79dc_JaffaCakes118.exe 28 PID 2440 wrote to memory of 268 2440 1bff0277cb535b9b783e26ebe5de79dc_JaffaCakes118.exe 28 PID 2440 wrote to memory of 268 2440 1bff0277cb535b9b783e26ebe5de79dc_JaffaCakes118.exe 28 PID 2440 wrote to memory of 268 2440 1bff0277cb535b9b783e26ebe5de79dc_JaffaCakes118.exe 28 PID 2440 wrote to memory of 268 2440 1bff0277cb535b9b783e26ebe5de79dc_JaffaCakes118.exe 28 PID 2440 wrote to memory of 268 2440 1bff0277cb535b9b783e26ebe5de79dc_JaffaCakes118.exe 28 PID 2440 wrote to memory of 268 2440 1bff0277cb535b9b783e26ebe5de79dc_JaffaCakes118.exe 28 PID 2440 wrote to memory of 2896 2440 1bff0277cb535b9b783e26ebe5de79dc_JaffaCakes118.exe 29 PID 2440 wrote to memory of 2896 2440 1bff0277cb535b9b783e26ebe5de79dc_JaffaCakes118.exe 29 PID 2440 wrote to memory of 2896 2440 1bff0277cb535b9b783e26ebe5de79dc_JaffaCakes118.exe 29 PID 2440 wrote to memory of 2896 2440 1bff0277cb535b9b783e26ebe5de79dc_JaffaCakes118.exe 29 PID 2440 wrote to memory of 2896 2440 1bff0277cb535b9b783e26ebe5de79dc_JaffaCakes118.exe 29 PID 2440 wrote to memory of 2896 2440 1bff0277cb535b9b783e26ebe5de79dc_JaffaCakes118.exe 29 PID 2440 wrote to memory of 2896 2440 1bff0277cb535b9b783e26ebe5de79dc_JaffaCakes118.exe 29 PID 2440 wrote to memory of 2896 2440 1bff0277cb535b9b783e26ebe5de79dc_JaffaCakes118.exe 29 PID 2440 wrote to memory of 2896 2440 1bff0277cb535b9b783e26ebe5de79dc_JaffaCakes118.exe 29 PID 2440 wrote to memory of 2896 2440 1bff0277cb535b9b783e26ebe5de79dc_JaffaCakes118.exe 29 PID 2440 wrote to memory of 1412 2440 1bff0277cb535b9b783e26ebe5de79dc_JaffaCakes118.exe 30 PID 2440 wrote to memory of 1412 2440 1bff0277cb535b9b783e26ebe5de79dc_JaffaCakes118.exe 30 PID 2440 wrote to memory of 1412 2440 1bff0277cb535b9b783e26ebe5de79dc_JaffaCakes118.exe 30 PID 2440 wrote to memory of 1412 2440 1bff0277cb535b9b783e26ebe5de79dc_JaffaCakes118.exe 30
Processes
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C:\Users\Admin\AppData\Local\Temp\1bff0277cb535b9b783e26ebe5de79dc_JaffaCakes118.exe"C:\Users\Admin\AppData\Local\Temp\1bff0277cb535b9b783e26ebe5de79dc_JaffaCakes118.exe"1⤵
- Loads dropped DLL
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:2440 -
C:\Windows\SysWOW64\svchost.exeC:\Windows\system32\svchost.exe2⤵
- Suspicious use of AdjustPrivilegeToken
PID:268
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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
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
PID:2896
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C:\Users\Admin\AppData\Local\Temp\wwpndifbeukyxkpi.exe"C:\Users\Admin\AppData\Local\Temp\wwpndifbeukyxkpi.exe"2⤵
- Executes dropped EXE
- Suspicious use of AdjustPrivilegeToken
PID:1412
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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
1Replay Monitor
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Downloads
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Filesize
110KB
MD51bff0277cb535b9b783e26ebe5de79dc
SHA13a8cce2dba73f7b3b119c118031c12609a640bae
SHA256cf438740773106890e340de6343bd2afdb3083dbf1926528ed77c61deb9d080c
SHA5122db7a18aa067fe985a0fe897c0edb25e3e1222104267cb007aab05d15b531e0970e41b9693ac856569fc8349492df8a779de543ab975d8b4ff3cb9ae26adf05d