Analysis
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max time kernel
150s -
max time network
149s -
platform
windows7_x64 -
resource
win7-20241010-en -
resource tags
arch:x64arch:x86image:win7-20241010-enlocale:en-usos:windows7-x64system -
submitted
21-01-2025 10:37
Static task
static1
1 signatures
Behavioral task
behavioral1
Sample
JaffaCakes118_03f45c521f3cd54d98ef84791d43c289.exe
Resource
win7-20241010-en
windows7-x64
16 signatures
150 seconds
General
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Target
JaffaCakes118_03f45c521f3cd54d98ef84791d43c289.exe
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Size
105KB
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MD5
03f45c521f3cd54d98ef84791d43c289
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SHA1
003ad2fd8a998f9b214eebc3b72d200626293d7a
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SHA256
00890c2fd2f4d4c875e00298bdbdce40b9bf2ceba40dae8fafdf724ead3b3f43
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SHA512
e90a0be674cc56bf2672de55ea989a1e4c299e53d50f737756a2c7e1a3d4a6bb6963f092ea07c68f4f4cb54f1f57aadcb8115826b60082776c2eefd9adc3db35
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SSDEEP
1536:9u7qT961cNvuoIQTVuWed6k7DDCfdnlp+WJIYVE7jwaaHw7Koj4r:5Tg2vIufer7yfdn7pPqjwaaHw7Koj4r
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\\lbcsauxl\\thtfkuhc.exe" svchost.exe -
Ramnit family
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UAC bypass 3 TTPs 1 IoCs
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\thtfkuhc.exe svchost.exe File created C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\thtfkuhc.exe svchost.exe -
Executes dropped EXE 1 IoCs
pid Process 2812 lmramwjicdsiytlf.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 1492 JaffaCakes118_03f45c521f3cd54d98ef84791d43c289.exe 1492 JaffaCakes118_03f45c521f3cd54d98ef84791d43c289.exe 1492 JaffaCakes118_03f45c521f3cd54d98ef84791d43c289.exe 1492 JaffaCakes118_03f45c521f3cd54d98ef84791d43c289.exe -
Adds Run key to start application 2 TTPs 1 IoCs
description ioc Process Set value (str) \REGISTRY\USER\S-1-5-21-3692679935-4019334568-335155002-1000\Software\Microsoft\Windows\CurrentVersion\Run\ThtFkuhc = "C:\\Users\\Admin\\AppData\\Local\\lbcsauxl\\thtfkuhc.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 3 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 JaffaCakes118_03f45c521f3cd54d98ef84791d43c289.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 2956 svchost.exe 2956 svchost.exe 2956 svchost.exe 2956 svchost.exe 2956 svchost.exe 2956 svchost.exe 2956 svchost.exe 2956 svchost.exe 2956 svchost.exe 2956 svchost.exe 2956 svchost.exe 2956 svchost.exe 2956 svchost.exe 2956 svchost.exe 2956 svchost.exe 2956 svchost.exe 2956 svchost.exe 2956 svchost.exe 2956 svchost.exe 2956 svchost.exe 2956 svchost.exe 2956 svchost.exe 2956 svchost.exe 2956 svchost.exe 2956 svchost.exe 2956 svchost.exe 2956 svchost.exe 2956 svchost.exe 2956 svchost.exe 2956 svchost.exe 2956 svchost.exe 2956 svchost.exe 2956 svchost.exe 2956 svchost.exe 2956 svchost.exe 2956 svchost.exe 2956 svchost.exe 2956 svchost.exe 2956 svchost.exe 2956 svchost.exe 2956 svchost.exe 2956 svchost.exe 2956 svchost.exe 2956 svchost.exe 2956 svchost.exe 2956 svchost.exe 2956 svchost.exe 2956 svchost.exe 2956 svchost.exe 2956 svchost.exe 2956 svchost.exe 2956 svchost.exe 2956 svchost.exe 2956 svchost.exe 2956 svchost.exe 2956 svchost.exe 2956 svchost.exe 2956 svchost.exe 2956 svchost.exe 2956 svchost.exe 2956 svchost.exe 2956 svchost.exe 2956 svchost.exe 2956 svchost.exe -
Suspicious behavior: LoadsDriver 1 IoCs
pid Process 464 Process not Found -
Suspicious use of AdjustPrivilegeToken 64 IoCs
description pid Process Token: SeSecurityPrivilege 1492 JaffaCakes118_03f45c521f3cd54d98ef84791d43c289.exe Token: SeDebugPrivilege 1492 JaffaCakes118_03f45c521f3cd54d98ef84791d43c289.exe Token: SeSecurityPrivilege 2608 svchost.exe Token: SeSecurityPrivilege 2956 svchost.exe Token: SeDebugPrivilege 2956 svchost.exe Token: SeRestorePrivilege 2956 svchost.exe Token: SeBackupPrivilege 2956 svchost.exe Token: SeRestorePrivilege 2956 svchost.exe Token: SeBackupPrivilege 2956 svchost.exe Token: SeRestorePrivilege 2956 svchost.exe Token: SeBackupPrivilege 2956 svchost.exe Token: SeRestorePrivilege 2956 svchost.exe Token: SeBackupPrivilege 2956 svchost.exe Token: SeRestorePrivilege 2956 svchost.exe Token: SeBackupPrivilege 2956 svchost.exe Token: SeRestorePrivilege 2956 svchost.exe Token: SeBackupPrivilege 2956 svchost.exe Token: SeSecurityPrivilege 2812 lmramwjicdsiytlf.exe Token: SeLoadDriverPrivilege 2812 lmramwjicdsiytlf.exe Token: SeRestorePrivilege 2956 svchost.exe Token: SeBackupPrivilege 2956 svchost.exe Token: SeRestorePrivilege 2956 svchost.exe Token: SeBackupPrivilege 2956 svchost.exe Token: SeRestorePrivilege 2956 svchost.exe Token: SeBackupPrivilege 2956 svchost.exe Token: SeRestorePrivilege 2956 svchost.exe Token: SeBackupPrivilege 2956 svchost.exe Token: SeRestorePrivilege 2956 svchost.exe Token: SeBackupPrivilege 2956 svchost.exe Token: SeRestorePrivilege 2956 svchost.exe Token: SeBackupPrivilege 2956 svchost.exe Token: SeRestorePrivilege 2956 svchost.exe Token: SeBackupPrivilege 2956 svchost.exe Token: SeRestorePrivilege 2956 svchost.exe Token: SeBackupPrivilege 2956 svchost.exe Token: SeRestorePrivilege 2956 svchost.exe Token: SeBackupPrivilege 2956 svchost.exe Token: SeRestorePrivilege 2956 svchost.exe Token: SeBackupPrivilege 2956 svchost.exe Token: SeRestorePrivilege 2956 svchost.exe Token: SeBackupPrivilege 2956 svchost.exe Token: SeRestorePrivilege 2956 svchost.exe Token: SeBackupPrivilege 2956 svchost.exe Token: SeRestorePrivilege 2956 svchost.exe Token: SeBackupPrivilege 2956 svchost.exe Token: SeRestorePrivilege 2956 svchost.exe Token: SeBackupPrivilege 2956 svchost.exe Token: SeRestorePrivilege 2956 svchost.exe Token: SeBackupPrivilege 2956 svchost.exe Token: SeRestorePrivilege 2956 svchost.exe Token: SeBackupPrivilege 2956 svchost.exe Token: SeRestorePrivilege 2956 svchost.exe Token: SeBackupPrivilege 2956 svchost.exe Token: SeRestorePrivilege 2956 svchost.exe Token: SeBackupPrivilege 2956 svchost.exe Token: SeRestorePrivilege 2956 svchost.exe Token: SeBackupPrivilege 2956 svchost.exe Token: SeRestorePrivilege 2956 svchost.exe Token: SeBackupPrivilege 2956 svchost.exe Token: SeRestorePrivilege 2956 svchost.exe Token: SeBackupPrivilege 2956 svchost.exe Token: SeRestorePrivilege 2956 svchost.exe Token: SeBackupPrivilege 2956 svchost.exe Token: SeRestorePrivilege 2956 svchost.exe -
Suspicious use of WriteProcessMemory 24 IoCs
description pid Process procid_target PID 1492 wrote to memory of 2608 1492 JaffaCakes118_03f45c521f3cd54d98ef84791d43c289.exe 29 PID 1492 wrote to memory of 2608 1492 JaffaCakes118_03f45c521f3cd54d98ef84791d43c289.exe 29 PID 1492 wrote to memory of 2608 1492 JaffaCakes118_03f45c521f3cd54d98ef84791d43c289.exe 29 PID 1492 wrote to memory of 2608 1492 JaffaCakes118_03f45c521f3cd54d98ef84791d43c289.exe 29 PID 1492 wrote to memory of 2608 1492 JaffaCakes118_03f45c521f3cd54d98ef84791d43c289.exe 29 PID 1492 wrote to memory of 2608 1492 JaffaCakes118_03f45c521f3cd54d98ef84791d43c289.exe 29 PID 1492 wrote to memory of 2608 1492 JaffaCakes118_03f45c521f3cd54d98ef84791d43c289.exe 29 PID 1492 wrote to memory of 2608 1492 JaffaCakes118_03f45c521f3cd54d98ef84791d43c289.exe 29 PID 1492 wrote to memory of 2608 1492 JaffaCakes118_03f45c521f3cd54d98ef84791d43c289.exe 29 PID 1492 wrote to memory of 2608 1492 JaffaCakes118_03f45c521f3cd54d98ef84791d43c289.exe 29 PID 1492 wrote to memory of 2956 1492 JaffaCakes118_03f45c521f3cd54d98ef84791d43c289.exe 30 PID 1492 wrote to memory of 2956 1492 JaffaCakes118_03f45c521f3cd54d98ef84791d43c289.exe 30 PID 1492 wrote to memory of 2956 1492 JaffaCakes118_03f45c521f3cd54d98ef84791d43c289.exe 30 PID 1492 wrote to memory of 2956 1492 JaffaCakes118_03f45c521f3cd54d98ef84791d43c289.exe 30 PID 1492 wrote to memory of 2956 1492 JaffaCakes118_03f45c521f3cd54d98ef84791d43c289.exe 30 PID 1492 wrote to memory of 2956 1492 JaffaCakes118_03f45c521f3cd54d98ef84791d43c289.exe 30 PID 1492 wrote to memory of 2956 1492 JaffaCakes118_03f45c521f3cd54d98ef84791d43c289.exe 30 PID 1492 wrote to memory of 2956 1492 JaffaCakes118_03f45c521f3cd54d98ef84791d43c289.exe 30 PID 1492 wrote to memory of 2956 1492 JaffaCakes118_03f45c521f3cd54d98ef84791d43c289.exe 30 PID 1492 wrote to memory of 2956 1492 JaffaCakes118_03f45c521f3cd54d98ef84791d43c289.exe 30 PID 1492 wrote to memory of 2812 1492 JaffaCakes118_03f45c521f3cd54d98ef84791d43c289.exe 31 PID 1492 wrote to memory of 2812 1492 JaffaCakes118_03f45c521f3cd54d98ef84791d43c289.exe 31 PID 1492 wrote to memory of 2812 1492 JaffaCakes118_03f45c521f3cd54d98ef84791d43c289.exe 31 PID 1492 wrote to memory of 2812 1492 JaffaCakes118_03f45c521f3cd54d98ef84791d43c289.exe 31
Processes
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C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_03f45c521f3cd54d98ef84791d43c289.exe"C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_03f45c521f3cd54d98ef84791d43c289.exe"1⤵
- Loads dropped DLL
- System Location Discovery: System Language Discovery
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:1492 -
C:\Windows\SysWOW64\svchost.exeC:\Windows\system32\svchost.exe2⤵
- System Location Discovery: System Language Discovery
- Suspicious use of AdjustPrivilegeToken
PID:2608
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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:2956
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C:\Users\Admin\AppData\Local\Temp\lmramwjicdsiytlf.exe"C:\Users\Admin\AppData\Local\Temp\lmramwjicdsiytlf.exe"2⤵
- Executes dropped EXE
- Suspicious use of AdjustPrivilegeToken
PID:2812
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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
105KB
MD503f45c521f3cd54d98ef84791d43c289
SHA1003ad2fd8a998f9b214eebc3b72d200626293d7a
SHA25600890c2fd2f4d4c875e00298bdbdce40b9bf2ceba40dae8fafdf724ead3b3f43
SHA512e90a0be674cc56bf2672de55ea989a1e4c299e53d50f737756a2c7e1a3d4a6bb6963f092ea07c68f4f4cb54f1f57aadcb8115826b60082776c2eefd9adc3db35