Analysis
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max time kernel
150s -
max time network
155s -
platform
windows10-2004_x64 -
resource
win10v2004-20240412-en -
resource tags
arch:x64arch:x86image:win10v2004-20240412-enlocale:en-usos:windows10-2004-x64system -
submitted
15-04-2024 15:15
Static task
static1
Behavioral task
behavioral1
Sample
f15c951b1ec384cab7e3bee192122626_JaffaCakes118.exe
Resource
win7-20240221-en
Behavioral task
behavioral2
Sample
f15c951b1ec384cab7e3bee192122626_JaffaCakes118.exe
Resource
win10v2004-20240412-en
General
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Target
f15c951b1ec384cab7e3bee192122626_JaffaCakes118.exe
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Size
373KB
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MD5
f15c951b1ec384cab7e3bee192122626
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SHA1
e58821eb0fdc4d4eed85265ba4c495b7ddb371a1
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SHA256
d1b35bd0810cc6590b227a815ace1a9cf795f9a917bba2fa74ce5f1262387f23
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SHA512
18d83c4482e5d8762ca241f8935e88464e43801af96876a8cd2c299a07eb41dcc977afe12766b478ecc98c0dea485e186553c79dbc12df788361411961e7f946
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SSDEEP
6144:wdd8xHVErhawhgnzvD624tOUAZKpwx730qSgj2a76cjWLLeMdWnpQZh9h4/:wd+xHUwAK224xAtPSw2SjbMd0QZh9u
Malware Config
Signatures
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Modifies WinLogon for persistence 2 TTPs 1 IoCs
Processes:
f15c951b1ec384cab7e3bee192122626_JaffaCakes118.exedescription ioc process Set value (str) \REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Winlogon\UserInit = "C:\\Windows\\system32\\userinit.exe,C:\\install\\taskeng.exe" f15c951b1ec384cab7e3bee192122626_JaffaCakes118.exe -
Checks BIOS information in registry 2 TTPs 2 IoCs
BIOS information is often read in order to detect sandboxing environments.
Processes:
f15c951b1ec384cab7e3bee192122626_JaffaCakes118.exetaskeng.exedescription ioc process Key value queried \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\SystemBiosDate f15c951b1ec384cab7e3bee192122626_JaffaCakes118.exe Key value queried \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\SystemBiosDate taskeng.exe -
Checks computer location settings 2 TTPs 1 IoCs
Looks up country code configured in the registry, likely geofence.
Processes:
f15c951b1ec384cab7e3bee192122626_JaffaCakes118.exedescription ioc process Key value queried \REGISTRY\USER\S-1-5-21-4092317236-2027488869-1227795436-1000\Control Panel\International\Geo\Nation f15c951b1ec384cab7e3bee192122626_JaffaCakes118.exe -
Executes dropped EXE 1 IoCs
Processes:
taskeng.exepid process 4720 taskeng.exe -
Adds Run key to start application 2 TTPs 1 IoCs
Processes:
f15c951b1ec384cab7e3bee192122626_JaffaCakes118.exedescription ioc process Set value (str) \REGISTRY\USER\S-1-5-21-4092317236-2027488869-1227795436-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\task@skip = "C:\\install\\taskeng.exe" f15c951b1ec384cab7e3bee192122626_JaffaCakes118.exe -
Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).
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Checks processor information in registry 2 TTPs 8 IoCs
Processor information is often read in order to detect sandboxing environments.
Processes:
f15c951b1ec384cab7e3bee192122626_JaffaCakes118.exetaskeng.exedescription ioc process Key opened \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0 f15c951b1ec384cab7e3bee192122626_JaffaCakes118.exe Key value queried \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\ProcessorNameString f15c951b1ec384cab7e3bee192122626_JaffaCakes118.exe Key value queried \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\Identifier f15c951b1ec384cab7e3bee192122626_JaffaCakes118.exe Key value queried \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\VendorIdentifier f15c951b1ec384cab7e3bee192122626_JaffaCakes118.exe Key opened \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0 taskeng.exe Key value queried \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\ProcessorNameString taskeng.exe Key value queried \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\Identifier taskeng.exe Key value queried \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\VendorIdentifier taskeng.exe -
Enumerates system info in registry 2 TTPs 2 IoCs
Processes:
taskeng.exef15c951b1ec384cab7e3bee192122626_JaffaCakes118.exedescription ioc process Key value queried \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\Identifier taskeng.exe Key value queried \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\Identifier f15c951b1ec384cab7e3bee192122626_JaffaCakes118.exe -
Modifies registry class 1 IoCs
Processes:
f15c951b1ec384cab7e3bee192122626_JaffaCakes118.exedescription ioc process Key created \REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{1f3427c8-5c10-4210-aa03-2ee45287d668}\Instance\ f15c951b1ec384cab7e3bee192122626_JaffaCakes118.exe -
Suspicious use of AdjustPrivilegeToken 48 IoCs
Processes:
f15c951b1ec384cab7e3bee192122626_JaffaCakes118.exetaskeng.exedescription pid process Token: SeIncreaseQuotaPrivilege 4188 f15c951b1ec384cab7e3bee192122626_JaffaCakes118.exe Token: SeSecurityPrivilege 4188 f15c951b1ec384cab7e3bee192122626_JaffaCakes118.exe Token: SeTakeOwnershipPrivilege 4188 f15c951b1ec384cab7e3bee192122626_JaffaCakes118.exe Token: SeLoadDriverPrivilege 4188 f15c951b1ec384cab7e3bee192122626_JaffaCakes118.exe Token: SeSystemProfilePrivilege 4188 f15c951b1ec384cab7e3bee192122626_JaffaCakes118.exe Token: SeSystemtimePrivilege 4188 f15c951b1ec384cab7e3bee192122626_JaffaCakes118.exe Token: SeProfSingleProcessPrivilege 4188 f15c951b1ec384cab7e3bee192122626_JaffaCakes118.exe Token: SeIncBasePriorityPrivilege 4188 f15c951b1ec384cab7e3bee192122626_JaffaCakes118.exe Token: SeCreatePagefilePrivilege 4188 f15c951b1ec384cab7e3bee192122626_JaffaCakes118.exe Token: SeBackupPrivilege 4188 f15c951b1ec384cab7e3bee192122626_JaffaCakes118.exe Token: SeRestorePrivilege 4188 f15c951b1ec384cab7e3bee192122626_JaffaCakes118.exe Token: SeShutdownPrivilege 4188 f15c951b1ec384cab7e3bee192122626_JaffaCakes118.exe Token: SeDebugPrivilege 4188 f15c951b1ec384cab7e3bee192122626_JaffaCakes118.exe Token: SeSystemEnvironmentPrivilege 4188 f15c951b1ec384cab7e3bee192122626_JaffaCakes118.exe Token: SeChangeNotifyPrivilege 4188 f15c951b1ec384cab7e3bee192122626_JaffaCakes118.exe Token: SeRemoteShutdownPrivilege 4188 f15c951b1ec384cab7e3bee192122626_JaffaCakes118.exe Token: SeUndockPrivilege 4188 f15c951b1ec384cab7e3bee192122626_JaffaCakes118.exe Token: SeManageVolumePrivilege 4188 f15c951b1ec384cab7e3bee192122626_JaffaCakes118.exe Token: SeImpersonatePrivilege 4188 f15c951b1ec384cab7e3bee192122626_JaffaCakes118.exe Token: SeCreateGlobalPrivilege 4188 f15c951b1ec384cab7e3bee192122626_JaffaCakes118.exe Token: 33 4188 f15c951b1ec384cab7e3bee192122626_JaffaCakes118.exe Token: 34 4188 f15c951b1ec384cab7e3bee192122626_JaffaCakes118.exe Token: 35 4188 f15c951b1ec384cab7e3bee192122626_JaffaCakes118.exe Token: 36 4188 f15c951b1ec384cab7e3bee192122626_JaffaCakes118.exe Token: SeIncreaseQuotaPrivilege 4720 taskeng.exe Token: SeSecurityPrivilege 4720 taskeng.exe Token: SeTakeOwnershipPrivilege 4720 taskeng.exe Token: SeLoadDriverPrivilege 4720 taskeng.exe Token: SeSystemProfilePrivilege 4720 taskeng.exe Token: SeSystemtimePrivilege 4720 taskeng.exe Token: SeProfSingleProcessPrivilege 4720 taskeng.exe Token: SeIncBasePriorityPrivilege 4720 taskeng.exe Token: SeCreatePagefilePrivilege 4720 taskeng.exe Token: SeBackupPrivilege 4720 taskeng.exe Token: SeRestorePrivilege 4720 taskeng.exe Token: SeShutdownPrivilege 4720 taskeng.exe Token: SeDebugPrivilege 4720 taskeng.exe Token: SeSystemEnvironmentPrivilege 4720 taskeng.exe Token: SeChangeNotifyPrivilege 4720 taskeng.exe Token: SeRemoteShutdownPrivilege 4720 taskeng.exe Token: SeUndockPrivilege 4720 taskeng.exe Token: SeManageVolumePrivilege 4720 taskeng.exe Token: SeImpersonatePrivilege 4720 taskeng.exe Token: SeCreateGlobalPrivilege 4720 taskeng.exe Token: 33 4720 taskeng.exe Token: 34 4720 taskeng.exe Token: 35 4720 taskeng.exe Token: 36 4720 taskeng.exe -
Suspicious use of WriteProcessMemory 3 IoCs
Processes:
f15c951b1ec384cab7e3bee192122626_JaffaCakes118.exedescription pid process target process PID 4188 wrote to memory of 4720 4188 f15c951b1ec384cab7e3bee192122626_JaffaCakes118.exe taskeng.exe PID 4188 wrote to memory of 4720 4188 f15c951b1ec384cab7e3bee192122626_JaffaCakes118.exe taskeng.exe PID 4188 wrote to memory of 4720 4188 f15c951b1ec384cab7e3bee192122626_JaffaCakes118.exe taskeng.exe
Processes
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C:\Users\Admin\AppData\Local\Temp\f15c951b1ec384cab7e3bee192122626_JaffaCakes118.exe"C:\Users\Admin\AppData\Local\Temp\f15c951b1ec384cab7e3bee192122626_JaffaCakes118.exe"1⤵
- Modifies WinLogon for persistence
- Checks BIOS information in registry
- Checks computer location settings
- Adds Run key to start application
- Checks processor information in registry
- Enumerates system info in registry
- Modifies registry class
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:4188 -
C:\install\taskeng.exe"C:\install\taskeng.exe"2⤵
- Checks BIOS information in registry
- Executes dropped EXE
- Checks processor information in registry
- Enumerates system info in registry
- Suspicious use of AdjustPrivilegeToken
PID:4720
Network
MITRE ATT&CK Enterprise v15
Replay Monitor
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Downloads
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Filesize
373KB
MD5f15c951b1ec384cab7e3bee192122626
SHA1e58821eb0fdc4d4eed85265ba4c495b7ddb371a1
SHA256d1b35bd0810cc6590b227a815ace1a9cf795f9a917bba2fa74ce5f1262387f23
SHA51218d83c4482e5d8762ca241f8935e88464e43801af96876a8cd2c299a07eb41dcc977afe12766b478ecc98c0dea485e186553c79dbc12df788361411961e7f946