Analysis
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max time kernel
149s -
max time network
151s -
platform
windows10-2004_x64 -
resource
win10v2004-20240426-en -
resource tags
arch:x64arch:x86image:win10v2004-20240426-enlocale:en-usos:windows10-2004-x64system -
submitted
04-05-2024 17:54
Static task
static1
Behavioral task
behavioral1
Sample
13d5815ef6299270aa4e476ab0d57ba7_JaffaCakes118.exe
Resource
win7-20240221-en
Behavioral task
behavioral2
Sample
13d5815ef6299270aa4e476ab0d57ba7_JaffaCakes118.exe
Resource
win10v2004-20240426-en
General
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Target
13d5815ef6299270aa4e476ab0d57ba7_JaffaCakes118.exe
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Size
225KB
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MD5
13d5815ef6299270aa4e476ab0d57ba7
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SHA1
b039618283277b6654d0291d3296fed36685317a
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SHA256
9df318a17515aeed7719fb9a650c16e5adeec27d1cee888cba378f5ba6f90ac7
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SHA512
e61c5b85022302df0b5244ac193aaef017f92882c3b61fbc13a99578c0806ecc60735f3fb3b1aa89fed41822025b879150070e38c5761a69508f4a85d4ecf82f
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SSDEEP
3072:afLnfk1mn7UVGhRXR9cEF3KGx/CgO9PcsibcbQLOEpTR5w1BNH50Idt:afL8c4VQcEwGxagiPSbIyPKQIb
Malware Config
Extracted
F:\$RECYCLE.BIN\OWZDILWMUV-DECRYPT.txt
http://gandcrabmfe6mnef.onion/94b134949033c0fb
Signatures
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Gandcrab
Gandcrab is a Trojan horse that encrypts files on a computer.
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Deletes shadow copies 3 TTPs
Ransomware often targets backup files to inhibit system recovery.
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Renames multiple (293) files with added filename extension
This suggests ransomware activity of encrypting all the files on the system.
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Checks computer location settings 2 TTPs 1 IoCs
Looks up country code configured in the registry, likely geofence.
description ioc Process Key value queried \REGISTRY\USER\S-1-5-21-4018855536-2201274732-320770143-1000\Control Panel\International\Geo\Nation 13d5815ef6299270aa4e476ab0d57ba7_JaffaCakes118.exe -
Drops startup file 2 IoCs
description ioc Process File created C:\Users\Admin\AppData\Roaming\Microsoft\Word\STARTUP\OWZDILWMUV-DECRYPT.txt 13d5815ef6299270aa4e476ab0d57ba7_JaffaCakes118.exe File created C:\Users\Admin\AppData\Roaming\Microsoft\Word\STARTUP\9033c7169033c0f81c.lock 13d5815ef6299270aa4e476ab0d57ba7_JaffaCakes118.exe -
Reads user/profile data of web browsers 2 TTPs
Infostealers often target stored browser data, which can include saved credentials etc.
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Enumerates connected drives 3 TTPs 23 IoCs
Attempts to read the root path of hard drives other than the default C: drive.
description ioc Process File opened (read-only) \??\L: 13d5815ef6299270aa4e476ab0d57ba7_JaffaCakes118.exe File opened (read-only) \??\T: 13d5815ef6299270aa4e476ab0d57ba7_JaffaCakes118.exe File opened (read-only) \??\X: 13d5815ef6299270aa4e476ab0d57ba7_JaffaCakes118.exe File opened (read-only) \??\Y: 13d5815ef6299270aa4e476ab0d57ba7_JaffaCakes118.exe File opened (read-only) \??\W: 13d5815ef6299270aa4e476ab0d57ba7_JaffaCakes118.exe File opened (read-only) \??\B: 13d5815ef6299270aa4e476ab0d57ba7_JaffaCakes118.exe File opened (read-only) \??\G: 13d5815ef6299270aa4e476ab0d57ba7_JaffaCakes118.exe File opened (read-only) \??\H: 13d5815ef6299270aa4e476ab0d57ba7_JaffaCakes118.exe File opened (read-only) \??\J: 13d5815ef6299270aa4e476ab0d57ba7_JaffaCakes118.exe File opened (read-only) \??\P: 13d5815ef6299270aa4e476ab0d57ba7_JaffaCakes118.exe File opened (read-only) \??\R: 13d5815ef6299270aa4e476ab0d57ba7_JaffaCakes118.exe File opened (read-only) \??\S: 13d5815ef6299270aa4e476ab0d57ba7_JaffaCakes118.exe File opened (read-only) \??\A: 13d5815ef6299270aa4e476ab0d57ba7_JaffaCakes118.exe File opened (read-only) \??\E: 13d5815ef6299270aa4e476ab0d57ba7_JaffaCakes118.exe File opened (read-only) \??\K: 13d5815ef6299270aa4e476ab0d57ba7_JaffaCakes118.exe File opened (read-only) \??\M: 13d5815ef6299270aa4e476ab0d57ba7_JaffaCakes118.exe File opened (read-only) \??\N: 13d5815ef6299270aa4e476ab0d57ba7_JaffaCakes118.exe File opened (read-only) \??\O: 13d5815ef6299270aa4e476ab0d57ba7_JaffaCakes118.exe File opened (read-only) \??\Z: 13d5815ef6299270aa4e476ab0d57ba7_JaffaCakes118.exe File opened (read-only) \??\I: 13d5815ef6299270aa4e476ab0d57ba7_JaffaCakes118.exe File opened (read-only) \??\Q: 13d5815ef6299270aa4e476ab0d57ba7_JaffaCakes118.exe File opened (read-only) \??\U: 13d5815ef6299270aa4e476ab0d57ba7_JaffaCakes118.exe File opened (read-only) \??\V: 13d5815ef6299270aa4e476ab0d57ba7_JaffaCakes118.exe -
Sets desktop wallpaper using registry 2 TTPs 1 IoCs
description ioc Process Set value (str) \REGISTRY\USER\S-1-5-21-4018855536-2201274732-320770143-1000\Control Panel\Desktop\Wallpaper = "C:\\Users\\Admin\\AppData\\Local\\Temp\\\\pidor.bmp" 13d5815ef6299270aa4e476ab0d57ba7_JaffaCakes118.exe -
Drops file in Program Files directory 17 IoCs
description ioc Process File opened for modification C:\Program Files\InvokeRevoke.m4v 13d5815ef6299270aa4e476ab0d57ba7_JaffaCakes118.exe File opened for modification C:\Program Files\MeasureUnprotect.m1v 13d5815ef6299270aa4e476ab0d57ba7_JaffaCakes118.exe File opened for modification C:\Program Files\WatchUnprotect.mpeg2 13d5815ef6299270aa4e476ab0d57ba7_JaffaCakes118.exe File created C:\Program Files (x86)\9033c7169033c0f81c.lock 13d5815ef6299270aa4e476ab0d57ba7_JaffaCakes118.exe File created C:\Program Files\OWZDILWMUV-DECRYPT.txt 13d5815ef6299270aa4e476ab0d57ba7_JaffaCakes118.exe File opened for modification C:\Program Files\ExitUnlock.vstx 13d5815ef6299270aa4e476ab0d57ba7_JaffaCakes118.exe File opened for modification C:\Program Files\OptimizeStop.htm 13d5815ef6299270aa4e476ab0d57ba7_JaffaCakes118.exe File opened for modification C:\Program Files\SplitShow.scf 13d5815ef6299270aa4e476ab0d57ba7_JaffaCakes118.exe File opened for modification C:\Program Files\UnlockUnpublish.M2V 13d5815ef6299270aa4e476ab0d57ba7_JaffaCakes118.exe File created C:\Program Files (x86)\OWZDILWMUV-DECRYPT.txt 13d5815ef6299270aa4e476ab0d57ba7_JaffaCakes118.exe File opened for modification C:\Program Files\GroupCopy.hta 13d5815ef6299270aa4e476ab0d57ba7_JaffaCakes118.exe File opened for modification C:\Program Files\MountRestart.wmv 13d5815ef6299270aa4e476ab0d57ba7_JaffaCakes118.exe File opened for modification C:\Program Files\InitializeInvoke.mpg 13d5815ef6299270aa4e476ab0d57ba7_JaffaCakes118.exe File opened for modification C:\Program Files\PushRename.7z 13d5815ef6299270aa4e476ab0d57ba7_JaffaCakes118.exe File opened for modification C:\Program Files\RenameSwitch.jpg 13d5815ef6299270aa4e476ab0d57ba7_JaffaCakes118.exe File created C:\Program Files\9033c7169033c0f81c.lock 13d5815ef6299270aa4e476ab0d57ba7_JaffaCakes118.exe File opened for modification C:\Program Files\AddInstall.TS 13d5815ef6299270aa4e476ab0d57ba7_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 3 IoCs
Processor information is often read in order to detect sandboxing environments.
description ioc Process Key opened \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0 13d5815ef6299270aa4e476ab0d57ba7_JaffaCakes118.exe Key value queried \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\ProcessorNameString 13d5815ef6299270aa4e476ab0d57ba7_JaffaCakes118.exe Key value queried \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\Identifier 13d5815ef6299270aa4e476ab0d57ba7_JaffaCakes118.exe -
description ioc Process Key created \REGISTRY\MACHINE\SOFTWARE\Microsoft\SystemCertificates\AuthRoot\Certificates\B51C067CEE2B0C3DF855AB2D92F4FE39D4E70F0E 13d5815ef6299270aa4e476ab0d57ba7_JaffaCakes118.exe Set value (data) \REGISTRY\MACHINE\SOFTWARE\Microsoft\SystemCertificates\AuthRoot\Certificates\B51C067CEE2B0C3DF855AB2D92F4FE39D4E70F0E\Blob = 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 13d5815ef6299270aa4e476ab0d57ba7_JaffaCakes118.exe -
Suspicious behavior: EnumeratesProcesses 4 IoCs
pid Process 4052 13d5815ef6299270aa4e476ab0d57ba7_JaffaCakes118.exe 4052 13d5815ef6299270aa4e476ab0d57ba7_JaffaCakes118.exe 4052 13d5815ef6299270aa4e476ab0d57ba7_JaffaCakes118.exe 4052 13d5815ef6299270aa4e476ab0d57ba7_JaffaCakes118.exe -
Suspicious use of AdjustPrivilegeToken 45 IoCs
description pid Process Token: SeIncreaseQuotaPrivilege 4004 wmic.exe Token: SeSecurityPrivilege 4004 wmic.exe Token: SeTakeOwnershipPrivilege 4004 wmic.exe Token: SeLoadDriverPrivilege 4004 wmic.exe Token: SeSystemProfilePrivilege 4004 wmic.exe Token: SeSystemtimePrivilege 4004 wmic.exe Token: SeProfSingleProcessPrivilege 4004 wmic.exe Token: SeIncBasePriorityPrivilege 4004 wmic.exe Token: SeCreatePagefilePrivilege 4004 wmic.exe Token: SeBackupPrivilege 4004 wmic.exe Token: SeRestorePrivilege 4004 wmic.exe Token: SeShutdownPrivilege 4004 wmic.exe Token: SeDebugPrivilege 4004 wmic.exe Token: SeSystemEnvironmentPrivilege 4004 wmic.exe Token: SeRemoteShutdownPrivilege 4004 wmic.exe Token: SeUndockPrivilege 4004 wmic.exe Token: SeManageVolumePrivilege 4004 wmic.exe Token: 33 4004 wmic.exe Token: 34 4004 wmic.exe Token: 35 4004 wmic.exe Token: 36 4004 wmic.exe Token: SeIncreaseQuotaPrivilege 4004 wmic.exe Token: SeSecurityPrivilege 4004 wmic.exe Token: SeTakeOwnershipPrivilege 4004 wmic.exe Token: SeLoadDriverPrivilege 4004 wmic.exe Token: SeSystemProfilePrivilege 4004 wmic.exe Token: SeSystemtimePrivilege 4004 wmic.exe Token: SeProfSingleProcessPrivilege 4004 wmic.exe Token: SeIncBasePriorityPrivilege 4004 wmic.exe Token: SeCreatePagefilePrivilege 4004 wmic.exe Token: SeBackupPrivilege 4004 wmic.exe Token: SeRestorePrivilege 4004 wmic.exe Token: SeShutdownPrivilege 4004 wmic.exe Token: SeDebugPrivilege 4004 wmic.exe Token: SeSystemEnvironmentPrivilege 4004 wmic.exe Token: SeRemoteShutdownPrivilege 4004 wmic.exe Token: SeUndockPrivilege 4004 wmic.exe Token: SeManageVolumePrivilege 4004 wmic.exe Token: 33 4004 wmic.exe Token: 34 4004 wmic.exe Token: 35 4004 wmic.exe Token: 36 4004 wmic.exe Token: SeBackupPrivilege 2264 vssvc.exe Token: SeRestorePrivilege 2264 vssvc.exe Token: SeAuditPrivilege 2264 vssvc.exe -
Suspicious use of WriteProcessMemory 3 IoCs
description pid Process procid_target PID 4052 wrote to memory of 4004 4052 13d5815ef6299270aa4e476ab0d57ba7_JaffaCakes118.exe 98 PID 4052 wrote to memory of 4004 4052 13d5815ef6299270aa4e476ab0d57ba7_JaffaCakes118.exe 98 PID 4052 wrote to memory of 4004 4052 13d5815ef6299270aa4e476ab0d57ba7_JaffaCakes118.exe 98 -
Uses Volume Shadow Copy service COM API
The Volume Shadow Copy service is used to manage backups/snapshots.
Processes
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C:\Users\Admin\AppData\Local\Temp\13d5815ef6299270aa4e476ab0d57ba7_JaffaCakes118.exe"C:\Users\Admin\AppData\Local\Temp\13d5815ef6299270aa4e476ab0d57ba7_JaffaCakes118.exe"1⤵
- Checks computer location settings
- Drops startup file
- Enumerates connected drives
- Sets desktop wallpaper using registry
- Drops file in Program Files directory
- Checks processor information in registry
- Modifies system certificate store
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of WriteProcessMemory
PID:4052 -
C:\Windows\SysWOW64\wbem\wmic.exe"C:\Windows\system32\wbem\wmic.exe" shadowcopy delete2⤵
- Suspicious use of AdjustPrivilegeToken
PID:4004
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C:\Windows\system32\vssvc.exeC:\Windows\system32\vssvc.exe1⤵
- Suspicious use of AdjustPrivilegeToken
PID:2264
Network
MITRE ATT&CK Enterprise v15
Replay Monitor
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Downloads
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Filesize
8KB
MD5d8f49684619cf6ff3c40b10c546afda2
SHA121d175b3dc1c6df5225c79b517366509938ee8be
SHA256d67367e59fdf3538c4c0c42fb15dbeb538f1fba0163e03fde05ccd8ad7239b69
SHA51292172084382267198051e6a27fc77c220a531f6bb2442bb26c4bba1a171c1e7d342a2db864f0b03d4668210250ac8c8e0963f1c01febde5fc97e68f72e95c538