Analysis
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max time kernel
144s -
max time network
142s -
platform
windows7_x64 -
resource
win7-20240903-en -
resource tags
arch:x64arch:x86image:win7-20240903-enlocale:en-usos:windows7-x64system -
submitted
05/10/2024, 07:51
Static task
static1
Behavioral task
behavioral1
Sample
16cf1b5fdb75b32737e162897992e252_JaffaCakes118.exe
Resource
win7-20240903-en
General
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Target
16cf1b5fdb75b32737e162897992e252_JaffaCakes118.exe
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Size
105KB
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MD5
16cf1b5fdb75b32737e162897992e252
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SHA1
0770aab281b2b6c9ef1c422db33e9fcffc5a8189
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SHA256
3224d36db7a560fe8bedc982346e41c78c9704e00bf9085f0a3ef0b491710715
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SHA512
aec0a85790ffcaf93be518e0ae1982f3ce5b1d6b042dc2866d56a9b649ca8f43be7377d4a8fbb413e282935b9b926aa9ce70ea71a1319c5a4a1598eeb264ad17
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SSDEEP
3072:zAK0CBezOU+8isBve4bF3u5jwaaHw7Koj4rIed:83z+svb1uze
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\\tgykyajt\\xbrydqmx.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\xbrydqmx.exe svchost.exe File opened for modification C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\xbrydqmx.exe svchost.exe -
Executes dropped EXE 1 IoCs
pid Process 1716 qroulfrqyrwcfuls.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 2908 16cf1b5fdb75b32737e162897992e252_JaffaCakes118.exe 2908 16cf1b5fdb75b32737e162897992e252_JaffaCakes118.exe 2908 16cf1b5fdb75b32737e162897992e252_JaffaCakes118.exe 2908 16cf1b5fdb75b32737e162897992e252_JaffaCakes118.exe -
Adds Run key to start application 2 TTPs 1 IoCs
description ioc Process Set value (str) \REGISTRY\USER\S-1-5-21-1488793075-819845221-1497111674-1000\Software\Microsoft\Windows\CurrentVersion\Run\XbrYdqmx = "C:\\Users\\Admin\\AppData\\Local\\tgykyajt\\xbrydqmx.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 16cf1b5fdb75b32737e162897992e252_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 1148 svchost.exe 1148 svchost.exe 1148 svchost.exe 1148 svchost.exe 1148 svchost.exe 1148 svchost.exe 1148 svchost.exe 1148 svchost.exe 1148 svchost.exe 1148 svchost.exe 1148 svchost.exe 1148 svchost.exe 1148 svchost.exe 1148 svchost.exe 1148 svchost.exe 1148 svchost.exe 1148 svchost.exe 1148 svchost.exe 1148 svchost.exe 1148 svchost.exe 1148 svchost.exe 1148 svchost.exe 1148 svchost.exe 1148 svchost.exe 1148 svchost.exe 1148 svchost.exe 1148 svchost.exe 1148 svchost.exe 1148 svchost.exe 1148 svchost.exe 1148 svchost.exe 1148 svchost.exe 1148 svchost.exe 1148 svchost.exe 1148 svchost.exe 1148 svchost.exe 1148 svchost.exe 1148 svchost.exe 1148 svchost.exe 1148 svchost.exe 1148 svchost.exe 1148 svchost.exe 1148 svchost.exe 1148 svchost.exe 1148 svchost.exe 1148 svchost.exe 1148 svchost.exe 1148 svchost.exe 1148 svchost.exe 1148 svchost.exe 1148 svchost.exe 1148 svchost.exe 1148 svchost.exe 1148 svchost.exe 1148 svchost.exe 1148 svchost.exe 1148 svchost.exe 1148 svchost.exe 1148 svchost.exe 1148 svchost.exe 1148 svchost.exe 1148 svchost.exe 1148 svchost.exe 1148 svchost.exe -
Suspicious behavior: LoadsDriver 1 IoCs
pid Process 476 Process not Found -
Suspicious use of AdjustPrivilegeToken 64 IoCs
description pid Process Token: SeSecurityPrivilege 2908 16cf1b5fdb75b32737e162897992e252_JaffaCakes118.exe Token: SeDebugPrivilege 2908 16cf1b5fdb75b32737e162897992e252_JaffaCakes118.exe Token: SeSecurityPrivilege 2388 svchost.exe Token: SeSecurityPrivilege 1148 svchost.exe Token: SeDebugPrivilege 1148 svchost.exe Token: SeRestorePrivilege 1148 svchost.exe Token: SeBackupPrivilege 1148 svchost.exe Token: SeRestorePrivilege 1148 svchost.exe Token: SeBackupPrivilege 1148 svchost.exe Token: SeRestorePrivilege 1148 svchost.exe Token: SeBackupPrivilege 1148 svchost.exe Token: SeRestorePrivilege 1148 svchost.exe Token: SeBackupPrivilege 1148 svchost.exe Token: SeRestorePrivilege 1148 svchost.exe Token: SeBackupPrivilege 1148 svchost.exe Token: SeRestorePrivilege 1148 svchost.exe Token: SeBackupPrivilege 1148 svchost.exe Token: SeSecurityPrivilege 1716 qroulfrqyrwcfuls.exe Token: SeLoadDriverPrivilege 1716 qroulfrqyrwcfuls.exe Token: SeRestorePrivilege 1148 svchost.exe Token: SeBackupPrivilege 1148 svchost.exe Token: SeRestorePrivilege 1148 svchost.exe Token: SeBackupPrivilege 1148 svchost.exe Token: SeRestorePrivilege 1148 svchost.exe Token: SeBackupPrivilege 1148 svchost.exe Token: SeRestorePrivilege 1148 svchost.exe Token: SeBackupPrivilege 1148 svchost.exe Token: SeRestorePrivilege 1148 svchost.exe Token: SeBackupPrivilege 1148 svchost.exe Token: SeRestorePrivilege 1148 svchost.exe Token: SeBackupPrivilege 1148 svchost.exe Token: SeRestorePrivilege 1148 svchost.exe Token: SeBackupPrivilege 1148 svchost.exe Token: SeRestorePrivilege 1148 svchost.exe Token: SeBackupPrivilege 1148 svchost.exe Token: SeRestorePrivilege 1148 svchost.exe Token: SeBackupPrivilege 1148 svchost.exe Token: SeRestorePrivilege 1148 svchost.exe Token: SeBackupPrivilege 1148 svchost.exe Token: SeRestorePrivilege 1148 svchost.exe Token: SeBackupPrivilege 1148 svchost.exe Token: SeRestorePrivilege 1148 svchost.exe Token: SeBackupPrivilege 1148 svchost.exe Token: SeRestorePrivilege 1148 svchost.exe Token: SeBackupPrivilege 1148 svchost.exe Token: SeRestorePrivilege 1148 svchost.exe Token: SeBackupPrivilege 1148 svchost.exe Token: SeRestorePrivilege 1148 svchost.exe Token: SeBackupPrivilege 1148 svchost.exe Token: SeRestorePrivilege 1148 svchost.exe Token: SeBackupPrivilege 1148 svchost.exe Token: SeRestorePrivilege 1148 svchost.exe Token: SeBackupPrivilege 1148 svchost.exe Token: SeRestorePrivilege 1148 svchost.exe Token: SeBackupPrivilege 1148 svchost.exe Token: SeRestorePrivilege 1148 svchost.exe Token: SeBackupPrivilege 1148 svchost.exe Token: SeRestorePrivilege 1148 svchost.exe Token: SeBackupPrivilege 1148 svchost.exe Token: SeRestorePrivilege 1148 svchost.exe Token: SeBackupPrivilege 1148 svchost.exe Token: SeRestorePrivilege 1148 svchost.exe Token: SeBackupPrivilege 1148 svchost.exe Token: SeRestorePrivilege 1148 svchost.exe -
Suspicious use of WriteProcessMemory 24 IoCs
description pid Process procid_target PID 2908 wrote to memory of 2388 2908 16cf1b5fdb75b32737e162897992e252_JaffaCakes118.exe 30 PID 2908 wrote to memory of 2388 2908 16cf1b5fdb75b32737e162897992e252_JaffaCakes118.exe 30 PID 2908 wrote to memory of 2388 2908 16cf1b5fdb75b32737e162897992e252_JaffaCakes118.exe 30 PID 2908 wrote to memory of 2388 2908 16cf1b5fdb75b32737e162897992e252_JaffaCakes118.exe 30 PID 2908 wrote to memory of 2388 2908 16cf1b5fdb75b32737e162897992e252_JaffaCakes118.exe 30 PID 2908 wrote to memory of 2388 2908 16cf1b5fdb75b32737e162897992e252_JaffaCakes118.exe 30 PID 2908 wrote to memory of 2388 2908 16cf1b5fdb75b32737e162897992e252_JaffaCakes118.exe 30 PID 2908 wrote to memory of 2388 2908 16cf1b5fdb75b32737e162897992e252_JaffaCakes118.exe 30 PID 2908 wrote to memory of 2388 2908 16cf1b5fdb75b32737e162897992e252_JaffaCakes118.exe 30 PID 2908 wrote to memory of 2388 2908 16cf1b5fdb75b32737e162897992e252_JaffaCakes118.exe 30 PID 2908 wrote to memory of 1148 2908 16cf1b5fdb75b32737e162897992e252_JaffaCakes118.exe 31 PID 2908 wrote to memory of 1148 2908 16cf1b5fdb75b32737e162897992e252_JaffaCakes118.exe 31 PID 2908 wrote to memory of 1148 2908 16cf1b5fdb75b32737e162897992e252_JaffaCakes118.exe 31 PID 2908 wrote to memory of 1148 2908 16cf1b5fdb75b32737e162897992e252_JaffaCakes118.exe 31 PID 2908 wrote to memory of 1148 2908 16cf1b5fdb75b32737e162897992e252_JaffaCakes118.exe 31 PID 2908 wrote to memory of 1148 2908 16cf1b5fdb75b32737e162897992e252_JaffaCakes118.exe 31 PID 2908 wrote to memory of 1148 2908 16cf1b5fdb75b32737e162897992e252_JaffaCakes118.exe 31 PID 2908 wrote to memory of 1148 2908 16cf1b5fdb75b32737e162897992e252_JaffaCakes118.exe 31 PID 2908 wrote to memory of 1148 2908 16cf1b5fdb75b32737e162897992e252_JaffaCakes118.exe 31 PID 2908 wrote to memory of 1148 2908 16cf1b5fdb75b32737e162897992e252_JaffaCakes118.exe 31 PID 2908 wrote to memory of 1716 2908 16cf1b5fdb75b32737e162897992e252_JaffaCakes118.exe 33 PID 2908 wrote to memory of 1716 2908 16cf1b5fdb75b32737e162897992e252_JaffaCakes118.exe 33 PID 2908 wrote to memory of 1716 2908 16cf1b5fdb75b32737e162897992e252_JaffaCakes118.exe 33 PID 2908 wrote to memory of 1716 2908 16cf1b5fdb75b32737e162897992e252_JaffaCakes118.exe 33
Processes
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C:\Users\Admin\AppData\Local\Temp\16cf1b5fdb75b32737e162897992e252_JaffaCakes118.exe"C:\Users\Admin\AppData\Local\Temp\16cf1b5fdb75b32737e162897992e252_JaffaCakes118.exe"1⤵
- Loads dropped DLL
- System Location Discovery: System Language Discovery
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:2908 -
C:\Windows\SysWOW64\svchost.exeC:\Windows\system32\svchost.exe2⤵
- System Location Discovery: System Language Discovery
- Suspicious use of AdjustPrivilegeToken
PID:2388
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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:1148
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C:\Users\Admin\AppData\Local\Temp\qroulfrqyrwcfuls.exe"C:\Users\Admin\AppData\Local\Temp\qroulfrqyrwcfuls.exe"2⤵
- Executes dropped EXE
- Suspicious use of AdjustPrivilegeToken
PID:1716
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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
MD516cf1b5fdb75b32737e162897992e252
SHA10770aab281b2b6c9ef1c422db33e9fcffc5a8189
SHA2563224d36db7a560fe8bedc982346e41c78c9704e00bf9085f0a3ef0b491710715
SHA512aec0a85790ffcaf93be518e0ae1982f3ce5b1d6b042dc2866d56a9b649ca8f43be7377d4a8fbb413e282935b9b926aa9ce70ea71a1319c5a4a1598eeb264ad17