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Analysis
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max time kernel
150s -
max time network
146s -
platform
windows7_x64 -
resource
win7-20240903-en -
resource tags
arch:x64arch:x86image:win7-20240903-enlocale:en-usos:windows7-x64system -
submitted
12/10/2024, 20:50
Static task
static1
1 signatures
Behavioral task
behavioral1
Sample
3bf94c88a17f353a41a0defe2007e793_JaffaCakes118.exe
Resource
win7-20240903-en
windows7-x64
15 signatures
150 seconds
General
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Target
3bf94c88a17f353a41a0defe2007e793_JaffaCakes118.exe
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Size
140KB
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MD5
3bf94c88a17f353a41a0defe2007e793
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SHA1
884317130330da4216135ca8a43e382aa188b257
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SHA256
dd0d5da76ae2e7e94ce4fbdcb327cb4e60f3299b74f3ec46b4e6b54e279b44fc
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SHA512
2b8eb87990b53c7154d9ffb2d8a989448293c908a1022e96b538d04703b306171352c02ba91a9fb9dc3eb3d252fcef8a9221012ac3c9fac90c072abca4f57085
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SSDEEP
3072:Zu0xToTMIuMKapAebaM7toJpVChQBTX7z1DIM1t:AoapHzoJ/ChQBTXZIE
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\\qfrsocoj\\yljfyfua.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 created C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\yljfyfua.exe svchost.exe File opened for modification C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\yljfyfua.exe svchost.exe -
Executes dropped EXE 2 IoCs
pid Process 1312 jFVnPayM4 2840 qqeabhwgebcsgccx.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 6 IoCs
pid Process 860 3bf94c88a17f353a41a0defe2007e793_JaffaCakes118.exe 860 3bf94c88a17f353a41a0defe2007e793_JaffaCakes118.exe 1312 jFVnPayM4 1312 jFVnPayM4 1312 jFVnPayM4 1312 jFVnPayM4 -
Adds Run key to start application 2 TTPs 1 IoCs
description ioc Process Set value (str) \REGISTRY\USER\S-1-5-21-2872745919-2748461613-2989606286-1000\Software\Microsoft\Windows\CurrentVersion\Run\YljFyfua = "C:\\Users\\Admin\\AppData\\Local\\qfrsocoj\\yljfyfua.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 5 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 3bf94c88a17f353a41a0defe2007e793_JaffaCakes118.exe Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language jFVnPayM4 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 qqeabhwgebcsgccx.exe -
Suspicious behavior: EnumeratesProcesses 64 IoCs
pid Process 3048 svchost.exe 3048 svchost.exe 3048 svchost.exe 3048 svchost.exe 3048 svchost.exe 3048 svchost.exe 3048 svchost.exe 3048 svchost.exe 3048 svchost.exe 3048 svchost.exe 3048 svchost.exe 3048 svchost.exe 3048 svchost.exe 3048 svchost.exe 3048 svchost.exe 3048 svchost.exe 3048 svchost.exe 3048 svchost.exe 3048 svchost.exe 3048 svchost.exe 3048 svchost.exe 3048 svchost.exe 3048 svchost.exe 3048 svchost.exe 3048 svchost.exe 3048 svchost.exe 3048 svchost.exe 3048 svchost.exe 3048 svchost.exe 3048 svchost.exe 3048 svchost.exe 3048 svchost.exe 3048 svchost.exe 3048 svchost.exe 3048 svchost.exe 3048 svchost.exe 3048 svchost.exe 3048 svchost.exe 3048 svchost.exe 3048 svchost.exe 3048 svchost.exe 3048 svchost.exe 3048 svchost.exe 3048 svchost.exe 3048 svchost.exe 3048 svchost.exe 3048 svchost.exe 3048 svchost.exe 3048 svchost.exe 3048 svchost.exe 3048 svchost.exe 3048 svchost.exe 3048 svchost.exe 3048 svchost.exe 3048 svchost.exe 3048 svchost.exe 3048 svchost.exe 3048 svchost.exe 3048 svchost.exe 3048 svchost.exe 3048 svchost.exe 3048 svchost.exe 3048 svchost.exe 3048 svchost.exe -
Suspicious behavior: LoadsDriver 1 IoCs
pid Process 472 Process not Found -
Suspicious use of AdjustPrivilegeToken 64 IoCs
description pid Process Token: SeSecurityPrivilege 1312 jFVnPayM4 Token: SeDebugPrivilege 1312 jFVnPayM4 Token: SeSecurityPrivilege 1296 svchost.exe Token: SeSecurityPrivilege 3048 svchost.exe Token: SeDebugPrivilege 3048 svchost.exe Token: SeRestorePrivilege 3048 svchost.exe Token: SeBackupPrivilege 3048 svchost.exe Token: SeRestorePrivilege 3048 svchost.exe Token: SeBackupPrivilege 3048 svchost.exe Token: SeRestorePrivilege 3048 svchost.exe Token: SeBackupPrivilege 3048 svchost.exe Token: SeRestorePrivilege 3048 svchost.exe Token: SeBackupPrivilege 3048 svchost.exe Token: SeRestorePrivilege 3048 svchost.exe Token: SeBackupPrivilege 3048 svchost.exe Token: SeRestorePrivilege 3048 svchost.exe Token: SeBackupPrivilege 3048 svchost.exe Token: SeSecurityPrivilege 2840 qqeabhwgebcsgccx.exe Token: SeLoadDriverPrivilege 2840 qqeabhwgebcsgccx.exe Token: SeRestorePrivilege 3048 svchost.exe Token: SeBackupPrivilege 3048 svchost.exe Token: SeRestorePrivilege 3048 svchost.exe Token: SeBackupPrivilege 3048 svchost.exe Token: SeRestorePrivilege 3048 svchost.exe Token: SeBackupPrivilege 3048 svchost.exe Token: SeRestorePrivilege 3048 svchost.exe Token: SeBackupPrivilege 3048 svchost.exe Token: SeRestorePrivilege 3048 svchost.exe Token: SeBackupPrivilege 3048 svchost.exe Token: SeRestorePrivilege 3048 svchost.exe Token: SeBackupPrivilege 3048 svchost.exe Token: SeRestorePrivilege 3048 svchost.exe Token: SeBackupPrivilege 3048 svchost.exe Token: SeRestorePrivilege 3048 svchost.exe Token: SeBackupPrivilege 3048 svchost.exe Token: SeRestorePrivilege 3048 svchost.exe Token: SeBackupPrivilege 3048 svchost.exe Token: SeRestorePrivilege 3048 svchost.exe Token: SeBackupPrivilege 3048 svchost.exe Token: SeRestorePrivilege 3048 svchost.exe Token: SeBackupPrivilege 3048 svchost.exe Token: SeRestorePrivilege 3048 svchost.exe Token: SeBackupPrivilege 3048 svchost.exe Token: SeRestorePrivilege 3048 svchost.exe Token: SeBackupPrivilege 3048 svchost.exe Token: SeRestorePrivilege 3048 svchost.exe Token: SeBackupPrivilege 3048 svchost.exe Token: SeRestorePrivilege 3048 svchost.exe Token: SeBackupPrivilege 3048 svchost.exe Token: SeRestorePrivilege 3048 svchost.exe Token: SeBackupPrivilege 3048 svchost.exe Token: SeRestorePrivilege 3048 svchost.exe Token: SeBackupPrivilege 3048 svchost.exe Token: SeRestorePrivilege 3048 svchost.exe Token: SeBackupPrivilege 3048 svchost.exe Token: SeRestorePrivilege 3048 svchost.exe Token: SeBackupPrivilege 3048 svchost.exe Token: SeRestorePrivilege 3048 svchost.exe Token: SeBackupPrivilege 3048 svchost.exe Token: SeRestorePrivilege 3048 svchost.exe Token: SeBackupPrivilege 3048 svchost.exe Token: SeRestorePrivilege 3048 svchost.exe Token: SeBackupPrivilege 3048 svchost.exe Token: SeRestorePrivilege 3048 svchost.exe -
Suspicious use of WriteProcessMemory 28 IoCs
description pid Process procid_target PID 860 wrote to memory of 1312 860 3bf94c88a17f353a41a0defe2007e793_JaffaCakes118.exe 30 PID 860 wrote to memory of 1312 860 3bf94c88a17f353a41a0defe2007e793_JaffaCakes118.exe 30 PID 860 wrote to memory of 1312 860 3bf94c88a17f353a41a0defe2007e793_JaffaCakes118.exe 30 PID 860 wrote to memory of 1312 860 3bf94c88a17f353a41a0defe2007e793_JaffaCakes118.exe 30 PID 1312 wrote to memory of 1296 1312 jFVnPayM4 31 PID 1312 wrote to memory of 1296 1312 jFVnPayM4 31 PID 1312 wrote to memory of 1296 1312 jFVnPayM4 31 PID 1312 wrote to memory of 1296 1312 jFVnPayM4 31 PID 1312 wrote to memory of 1296 1312 jFVnPayM4 31 PID 1312 wrote to memory of 1296 1312 jFVnPayM4 31 PID 1312 wrote to memory of 1296 1312 jFVnPayM4 31 PID 1312 wrote to memory of 1296 1312 jFVnPayM4 31 PID 1312 wrote to memory of 1296 1312 jFVnPayM4 31 PID 1312 wrote to memory of 1296 1312 jFVnPayM4 31 PID 1312 wrote to memory of 3048 1312 jFVnPayM4 32 PID 1312 wrote to memory of 3048 1312 jFVnPayM4 32 PID 1312 wrote to memory of 3048 1312 jFVnPayM4 32 PID 1312 wrote to memory of 3048 1312 jFVnPayM4 32 PID 1312 wrote to memory of 3048 1312 jFVnPayM4 32 PID 1312 wrote to memory of 3048 1312 jFVnPayM4 32 PID 1312 wrote to memory of 3048 1312 jFVnPayM4 32 PID 1312 wrote to memory of 3048 1312 jFVnPayM4 32 PID 1312 wrote to memory of 3048 1312 jFVnPayM4 32 PID 1312 wrote to memory of 3048 1312 jFVnPayM4 32 PID 1312 wrote to memory of 2840 1312 jFVnPayM4 33 PID 1312 wrote to memory of 2840 1312 jFVnPayM4 33 PID 1312 wrote to memory of 2840 1312 jFVnPayM4 33 PID 1312 wrote to memory of 2840 1312 jFVnPayM4 33
Processes
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C:\Users\Admin\AppData\Local\Temp\3bf94c88a17f353a41a0defe2007e793_JaffaCakes118.exe"C:\Users\Admin\AppData\Local\Temp\3bf94c88a17f353a41a0defe2007e793_JaffaCakes118.exe"1⤵
- Loads dropped DLL
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:860 -
C:\Users\Admin\AppData\Local\Temp\jFVnPayM4"jFVnPayM4"2⤵
- Executes dropped EXE
- Loads dropped DLL
- System Location Discovery: System Language Discovery
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:1312 -
C:\Windows\SysWOW64\svchost.exeC:\Windows\system32\svchost.exe3⤵
- System Location Discovery: System Language Discovery
- Suspicious use of AdjustPrivilegeToken
PID:1296
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C:\Windows\SysWOW64\svchost.exeC:\Windows\system32\svchost.exe3⤵
- 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:3048
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C:\Users\Admin\AppData\Local\Temp\qqeabhwgebcsgccx.exe"C:\Users\Admin\AppData\Local\Temp\qqeabhwgebcsgccx.exe"3⤵
- Executes dropped EXE
- System Location Discovery: System Language Discovery
- Suspicious use of AdjustPrivilegeToken
PID:2840
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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
95KB
MD5728a53df2a3d2f5307fe1cc77179d2a5
SHA1a3c9de63748878de218c872e97eef0de767df853
SHA256d9ee5d0e2dd387be3a501cc88cb2b2b310016cdedd7a83be402c203e4dc76e9e
SHA5127496a435296ca0b08b554fb779ab3eb6709064a480a93e6f948f14a072cfbc1fe7e7ac8a31ea572b7a9910ad6b3d6e2019993bfd609d199cefd61c609c7fe893