gandcrab | b0fbcec8c22a53492e24e3cd38e32af4f2d3399b1ef71f6cef6d58bc692957f1

System Information Discovery

Processes:

6c02819d4c8f9dd920e0368588e65ccb_JaffaCakes118.exe

description	ioc	process
Key value queried	\REGISTRY\USER\S-1-5-21-4124900551-4068476067-3491212533-1000\Control Panel\International\Geo\Nation	6c02819d4c8f9dd920e0368588e65ccb_JaffaCakes118.exe

Drops startup file 2 IoCs

Processes:

6c02819d4c8f9dd920e0368588e65ccb_JaffaCakes118.exe

description	ioc	process
File created	C:\Users\Admin\AppData\Roaming\Microsoft\Word\STARTUP\KRAB-DECRYPT.txt	6c02819d4c8f9dd920e0368588e65ccb_JaffaCakes118.exe
File created	C:\Users\Admin\AppData\Roaming\Microsoft\Word\STARTUP\1cc0dcbb1cc0db5531f.lock	6c02819d4c8f9dd920e0368588e65ccb_JaffaCakes118.exe

Reads user/profile data of web browsers 2 TTPs
Infostealers often target stored browser data, which can include saved credentials etc.
spyware stealer

Data from Local System
T1005

Credentials In Files
T1552.001

Enumerates connected drives 3 TTPs 23 IoCs

Attempts to read the root path of hard drives other than the default C: drive.

Query Registry

Peripheral Device Discovery

T1120

System Information Discovery

Processes:

6c02819d4c8f9dd920e0368588e65ccb_JaffaCakes118.exe

description	ioc	process
File opened (read-only)	\??\A:	6c02819d4c8f9dd920e0368588e65ccb_JaffaCakes118.exe
File opened (read-only)	\??\M:	6c02819d4c8f9dd920e0368588e65ccb_JaffaCakes118.exe
File opened (read-only)	\??\T:	6c02819d4c8f9dd920e0368588e65ccb_JaffaCakes118.exe
File opened (read-only)	\??\W:	6c02819d4c8f9dd920e0368588e65ccb_JaffaCakes118.exe
File opened (read-only)	\??\B:	6c02819d4c8f9dd920e0368588e65ccb_JaffaCakes118.exe
File opened (read-only)	\??\I:	6c02819d4c8f9dd920e0368588e65ccb_JaffaCakes118.exe
File opened (read-only)	\??\O:	6c02819d4c8f9dd920e0368588e65ccb_JaffaCakes118.exe
File opened (read-only)	\??\V:	6c02819d4c8f9dd920e0368588e65ccb_JaffaCakes118.exe
File opened (read-only)	\??\E:	6c02819d4c8f9dd920e0368588e65ccb_JaffaCakes118.exe
File opened (read-only)	\??\H:	6c02819d4c8f9dd920e0368588e65ccb_JaffaCakes118.exe
File opened (read-only)	\??\J:	6c02819d4c8f9dd920e0368588e65ccb_JaffaCakes118.exe
File opened (read-only)	\??\L:	6c02819d4c8f9dd920e0368588e65ccb_JaffaCakes118.exe
File opened (read-only)	\??\N:	6c02819d4c8f9dd920e0368588e65ccb_JaffaCakes118.exe
File opened (read-only)	\??\X:	6c02819d4c8f9dd920e0368588e65ccb_JaffaCakes118.exe
File opened (read-only)	\??\Y:	6c02819d4c8f9dd920e0368588e65ccb_JaffaCakes118.exe
File opened (read-only)	\??\G:	6c02819d4c8f9dd920e0368588e65ccb_JaffaCakes118.exe
File opened (read-only)	\??\K:	6c02819d4c8f9dd920e0368588e65ccb_JaffaCakes118.exe
File opened (read-only)	\??\P:	6c02819d4c8f9dd920e0368588e65ccb_JaffaCakes118.exe
File opened (read-only)	\??\Q:	6c02819d4c8f9dd920e0368588e65ccb_JaffaCakes118.exe
File opened (read-only)	\??\R:	6c02819d4c8f9dd920e0368588e65ccb_JaffaCakes118.exe
File opened (read-only)	\??\S:	6c02819d4c8f9dd920e0368588e65ccb_JaffaCakes118.exe
File opened (read-only)	\??\U:	6c02819d4c8f9dd920e0368588e65ccb_JaffaCakes118.exe
File opened (read-only)	\??\Z:	6c02819d4c8f9dd920e0368588e65ccb_JaffaCakes118.exe

Drops file in Program Files directory 34 IoCs

Processes:

6c02819d4c8f9dd920e0368588e65ccb_JaffaCakes118.exe

description	ioc	process
File opened for modification	C:\Program Files\GetShow.mp4	6c02819d4c8f9dd920e0368588e65ccb_JaffaCakes118.exe
File opened for modification	C:\Program Files\WriteDebug.iso	6c02819d4c8f9dd920e0368588e65ccb_JaffaCakes118.exe
File created	C:\Program Files (x86)\1cc0dcbb1cc0db5531f.lock	6c02819d4c8f9dd920e0368588e65ccb_JaffaCakes118.exe
File opened for modification	C:\Program Files\MountAdd.zip	6c02819d4c8f9dd920e0368588e65ccb_JaffaCakes118.exe
File opened for modification	C:\Program Files\SplitTest.rm	6c02819d4c8f9dd920e0368588e65ccb_JaffaCakes118.exe
File opened for modification	C:\Program Files\SubmitRequest.docx	6c02819d4c8f9dd920e0368588e65ccb_JaffaCakes118.exe
File created	C:\Program Files\KRAB-DECRYPT.txt	6c02819d4c8f9dd920e0368588e65ccb_JaffaCakes118.exe
File opened for modification	C:\Program Files\RenameWatch.ods	6c02819d4c8f9dd920e0368588e65ccb_JaffaCakes118.exe
File opened for modification	C:\Program Files\SendRepair.vbs	6c02819d4c8f9dd920e0368588e65ccb_JaffaCakes118.exe
File opened for modification	C:\Program Files\ExpandCompare.docx	6c02819d4c8f9dd920e0368588e65ccb_JaffaCakes118.exe
File opened for modification	C:\Program Files\ExportOptimize.mht	6c02819d4c8f9dd920e0368588e65ccb_JaffaCakes118.exe
File opened for modification	C:\Program Files\SelectEdit.ex_	6c02819d4c8f9dd920e0368588e65ccb_JaffaCakes118.exe
File opened for modification	C:\Program Files\UndoSearch.cr2	6c02819d4c8f9dd920e0368588e65ccb_JaffaCakes118.exe
File created	C:\Program Files\1cc0dcbb1cc0db5531f.lock	6c02819d4c8f9dd920e0368588e65ccb_JaffaCakes118.exe
File opened for modification	C:\Program Files\AssertCheckpoint.mp4	6c02819d4c8f9dd920e0368588e65ccb_JaffaCakes118.exe
File opened for modification	C:\Program Files\DisableSwitch.easmx	6c02819d4c8f9dd920e0368588e65ccb_JaffaCakes118.exe
File opened for modification	C:\Program Files\DenyEnter.doc	6c02819d4c8f9dd920e0368588e65ccb_JaffaCakes118.exe
File opened for modification	C:\Program Files\DisableRemove.tmp	6c02819d4c8f9dd920e0368588e65ccb_JaffaCakes118.exe
File opened for modification	C:\Program Files\UnprotectPing.mp4	6c02819d4c8f9dd920e0368588e65ccb_JaffaCakes118.exe
File opened for modification	C:\Program Files\RequestInitialize.ADT	6c02819d4c8f9dd920e0368588e65ccb_JaffaCakes118.exe
File opened for modification	C:\Program Files\ResolveSkip.ppsx	6c02819d4c8f9dd920e0368588e65ccb_JaffaCakes118.exe
File opened for modification	C:\Program Files\ExportBlock.mpg	6c02819d4c8f9dd920e0368588e65ccb_JaffaCakes118.exe
File opened for modification	C:\Program Files\GrantSet.ini	6c02819d4c8f9dd920e0368588e65ccb_JaffaCakes118.exe
File opened for modification	C:\Program Files\OptimizeUpdate.wax	6c02819d4c8f9dd920e0368588e65ccb_JaffaCakes118.exe
File opened for modification	C:\Program Files\SwitchConfirm.ini	6c02819d4c8f9dd920e0368588e65ccb_JaffaCakes118.exe
File opened for modification	C:\Program Files\ConvertToOptimize.aif	6c02819d4c8f9dd920e0368588e65ccb_JaffaCakes118.exe
File opened for modification	C:\Program Files\RevokeEnter.potm	6c02819d4c8f9dd920e0368588e65ccb_JaffaCakes118.exe
File opened for modification	C:\Program Files\SubmitPush.mov	6c02819d4c8f9dd920e0368588e65ccb_JaffaCakes118.exe
File opened for modification	C:\Program Files\RestartUnregister.snd	6c02819d4c8f9dd920e0368588e65ccb_JaffaCakes118.exe
File opened for modification	C:\Program Files\UnblockGet.wmx	6c02819d4c8f9dd920e0368588e65ccb_JaffaCakes118.exe
File created	C:\Program Files (x86)\KRAB-DECRYPT.txt	6c02819d4c8f9dd920e0368588e65ccb_JaffaCakes118.exe
File opened for modification	C:\Program Files\ExitRestore.mp2v	6c02819d4c8f9dd920e0368588e65ccb_JaffaCakes118.exe
File opened for modification	C:\Program Files\HideTrace.vsdm	6c02819d4c8f9dd920e0368588e65ccb_JaffaCakes118.exe
File opened for modification	C:\Program Files\MeasureDismount.vst	6c02819d4c8f9dd920e0368588e65ccb_JaffaCakes118.exe

Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).

System Information Discovery
T1082

Checks processor information in registry 2 TTPs 3 IoCs

Processor information is often read in order to detect sandboxing environments.

Query Registry

System Information Discovery

Processes:

6c02819d4c8f9dd920e0368588e65ccb_JaffaCakes118.exe

description	ioc	process
Key opened	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0	6c02819d4c8f9dd920e0368588e65ccb_JaffaCakes118.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\ProcessorNameString	6c02819d4c8f9dd920e0368588e65ccb_JaffaCakes118.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\Identifier	6c02819d4c8f9dd920e0368588e65ccb_JaffaCakes118.exe

Suspicious behavior: EnumeratesProcesses 4 IoCs

Processes:

6c02819d4c8f9dd920e0368588e65ccb_JaffaCakes118.exe

pid	process
4680	6c02819d4c8f9dd920e0368588e65ccb_JaffaCakes118.exe
4680	6c02819d4c8f9dd920e0368588e65ccb_JaffaCakes118.exe
4680	6c02819d4c8f9dd920e0368588e65ccb_JaffaCakes118.exe
4680	6c02819d4c8f9dd920e0368588e65ccb_JaffaCakes118.exe

Suspicious use of AdjustPrivilegeToken 45 IoCs

Processes:

wmic.exevssvc.exe

description	pid	process
Token: SeIncreaseQuotaPrivilege	404	wmic.exe
Token: SeSecurityPrivilege	404	wmic.exe
Token: SeTakeOwnershipPrivilege	404	wmic.exe
Token: SeLoadDriverPrivilege	404	wmic.exe
Token: SeSystemProfilePrivilege	404	wmic.exe
Token: SeSystemtimePrivilege	404	wmic.exe
Token: SeProfSingleProcessPrivilege	404	wmic.exe
Token: SeIncBasePriorityPrivilege	404	wmic.exe
Token: SeCreatePagefilePrivilege	404	wmic.exe
Token: SeBackupPrivilege	404	wmic.exe
Token: SeRestorePrivilege	404	wmic.exe
Token: SeShutdownPrivilege	404	wmic.exe
Token: SeDebugPrivilege	404	wmic.exe
Token: SeSystemEnvironmentPrivilege	404	wmic.exe
Token: SeRemoteShutdownPrivilege	404	wmic.exe
Token: SeUndockPrivilege	404	wmic.exe
Token: SeManageVolumePrivilege	404	wmic.exe
Token: 33	404	wmic.exe
Token: 34	404	wmic.exe
Token: 35	404	wmic.exe
Token: 36	404	wmic.exe
Token: SeIncreaseQuotaPrivilege	404	wmic.exe
Token: SeSecurityPrivilege	404	wmic.exe
Token: SeTakeOwnershipPrivilege	404	wmic.exe
Token: SeLoadDriverPrivilege	404	wmic.exe
Token: SeSystemProfilePrivilege	404	wmic.exe
Token: SeSystemtimePrivilege	404	wmic.exe
Token: SeProfSingleProcessPrivilege	404	wmic.exe
Token: SeIncBasePriorityPrivilege	404	wmic.exe
Token: SeCreatePagefilePrivilege	404	wmic.exe
Token: SeBackupPrivilege	404	wmic.exe
Token: SeRestorePrivilege	404	wmic.exe
Token: SeShutdownPrivilege	404	wmic.exe
Token: SeDebugPrivilege	404	wmic.exe
Token: SeSystemEnvironmentPrivilege	404	wmic.exe
Token: SeRemoteShutdownPrivilege	404	wmic.exe
Token: SeUndockPrivilege	404	wmic.exe
Token: SeManageVolumePrivilege	404	wmic.exe
Token: 33	404	wmic.exe
Token: 34	404	wmic.exe
Token: 35	404	wmic.exe
Token: 36	404	wmic.exe
Token: SeBackupPrivilege	2888	vssvc.exe
Token: SeRestorePrivilege	2888	vssvc.exe
Token: SeAuditPrivilege	2888	vssvc.exe

Suspicious use of WriteProcessMemory 3 IoCs

Processes:

6c02819d4c8f9dd920e0368588e65ccb_JaffaCakes118.exe

description	pid	process	target process
PID 4680 wrote to memory of 404	4680	6c02819d4c8f9dd920e0368588e65ccb_JaffaCakes118.exe	wmic.exe
PID 4680 wrote to memory of 404	4680	6c02819d4c8f9dd920e0368588e65ccb_JaffaCakes118.exe	wmic.exe
PID 4680 wrote to memory of 404	4680	6c02819d4c8f9dd920e0368588e65ccb_JaffaCakes118.exe	wmic.exe

Uses Volume Shadow Copy service COM API
The Volume Shadow Copy service is used to manage backups/snapshots.
ransomware

C:\Users\Admin\AppData\Local\Temp\6c02819d4c8f9dd920e0368588e65ccb_JaffaCakes118.exe
"C:\Users\Admin\AppData\Local\Temp\6c02819d4c8f9dd920e0368588e65ccb_JaffaCakes118.exe"
1⤵
- Checks computer location settings
- Drops startup file
- Enumerates connected drives
- Drops file in Program Files directory
- Checks processor information in registry
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of WriteProcessMemory
PID:4680

C:\Windows\SysWOW64\wbem\wmic.exe
"C:\Windows\system32\wbem\wmic.exe" shadowcopy delete
2⤵
- Suspicious use of AdjustPrivilegeToken
PID:404

C:\Windows\system32\vssvc.exe
C:\Windows\system32\vssvc.exe
1⤵
- Suspicious use of AdjustPrivilegeToken
PID:2888

Network

MITRE ATT&CK Matrix ATT&CK v13

Initial Access

Execution

Windows Management Instrumentation

T1047

Persistence

Privilege Escalation

Defense Evasion

Indicator Removal

T1070

File Deletion

T1070.004

Credential Access

Unsecured Credentials

T1552

Credentials In Files

T1552.001

Discovery

Query Registry

3

System Information Discovery

4

Peripheral Device Discovery

T1120

Lateral Movement

Collection

Data from Local System

T1005

Exfiltration

Command and Control

Impact

Inhibit System Recovery