Analysis
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max time kernel
145s -
max time network
150s -
platform
windows10-2004_x64 -
resource
win10v2004-20240508-en -
resource tags
arch:x64arch:x86image:win10v2004-20240508-enlocale:en-usos:windows10-2004-x64system -
submitted
24-05-2024 23:10
Static task
static1
Behavioral task
behavioral1
Sample
701afacec588c55ddce7088c8fa65b93_JaffaCakes118.exe
Resource
win7-20240419-en
Behavioral task
behavioral2
Sample
701afacec588c55ddce7088c8fa65b93_JaffaCakes118.exe
Resource
win10v2004-20240508-en
General
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Target
701afacec588c55ddce7088c8fa65b93_JaffaCakes118.exe
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Size
183KB
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MD5
701afacec588c55ddce7088c8fa65b93
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SHA1
1808efc4b1e61e36b3e3e04a26b92034d74f006b
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SHA256
08b0ec21722d740e19571aadaab15778ac5a8a85274bfed842fddfa8e4673ae1
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SHA512
5d944e848c0754c229e95c3f3caee5255f693b0e84bfefa9d663a3e3d5e51918c01c0d2092514805dc581b7414233a49b7c6f2eee64ce482c4b83a8e692e7dec
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SSDEEP
3072:Ealy19emgKe0QuYS3UmWuDTEltI3S/7IarDrjCgrQp0MUW:EaqxxDwx/7IS40MB
Malware Config
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 (294) 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.
Processes:
701afacec588c55ddce7088c8fa65b93_JaffaCakes118.exedescription ioc process Key value queried \REGISTRY\USER\S-1-5-21-1337824034-2731376981-3755436523-1000\Control Panel\International\Geo\Nation 701afacec588c55ddce7088c8fa65b93_JaffaCakes118.exe -
Drops startup file 2 IoCs
Processes:
701afacec588c55ddce7088c8fa65b93_JaffaCakes118.exedescription ioc process File created C:\Users\Admin\AppData\Roaming\Microsoft\Word\STARTUP\f11a6f5df11a68b3210.lock 701afacec588c55ddce7088c8fa65b93_JaffaCakes118.exe File created C:\Users\Admin\AppData\Roaming\Microsoft\Word\STARTUP\FGXZN-DECRYPT.html 701afacec588c55ddce7088c8fa65b93_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.
Processes:
701afacec588c55ddce7088c8fa65b93_JaffaCakes118.exedescription ioc process File opened (read-only) \??\J: 701afacec588c55ddce7088c8fa65b93_JaffaCakes118.exe File opened (read-only) \??\N: 701afacec588c55ddce7088c8fa65b93_JaffaCakes118.exe File opened (read-only) \??\O: 701afacec588c55ddce7088c8fa65b93_JaffaCakes118.exe File opened (read-only) \??\Q: 701afacec588c55ddce7088c8fa65b93_JaffaCakes118.exe File opened (read-only) \??\S: 701afacec588c55ddce7088c8fa65b93_JaffaCakes118.exe File opened (read-only) \??\V: 701afacec588c55ddce7088c8fa65b93_JaffaCakes118.exe File opened (read-only) \??\Z: 701afacec588c55ddce7088c8fa65b93_JaffaCakes118.exe File opened (read-only) \??\A: 701afacec588c55ddce7088c8fa65b93_JaffaCakes118.exe File opened (read-only) \??\I: 701afacec588c55ddce7088c8fa65b93_JaffaCakes118.exe File opened (read-only) \??\M: 701afacec588c55ddce7088c8fa65b93_JaffaCakes118.exe File opened (read-only) \??\B: 701afacec588c55ddce7088c8fa65b93_JaffaCakes118.exe File opened (read-only) \??\G: 701afacec588c55ddce7088c8fa65b93_JaffaCakes118.exe File opened (read-only) \??\K: 701afacec588c55ddce7088c8fa65b93_JaffaCakes118.exe File opened (read-only) \??\L: 701afacec588c55ddce7088c8fa65b93_JaffaCakes118.exe File opened (read-only) \??\P: 701afacec588c55ddce7088c8fa65b93_JaffaCakes118.exe File opened (read-only) \??\T: 701afacec588c55ddce7088c8fa65b93_JaffaCakes118.exe File opened (read-only) \??\U: 701afacec588c55ddce7088c8fa65b93_JaffaCakes118.exe File opened (read-only) \??\W: 701afacec588c55ddce7088c8fa65b93_JaffaCakes118.exe File opened (read-only) \??\E: 701afacec588c55ddce7088c8fa65b93_JaffaCakes118.exe File opened (read-only) \??\X: 701afacec588c55ddce7088c8fa65b93_JaffaCakes118.exe File opened (read-only) \??\R: 701afacec588c55ddce7088c8fa65b93_JaffaCakes118.exe File opened (read-only) \??\Y: 701afacec588c55ddce7088c8fa65b93_JaffaCakes118.exe File opened (read-only) \??\H: 701afacec588c55ddce7088c8fa65b93_JaffaCakes118.exe -
Sets desktop wallpaper using registry 2 TTPs 1 IoCs
Processes:
701afacec588c55ddce7088c8fa65b93_JaffaCakes118.exedescription ioc process Set value (str) \REGISTRY\USER\S-1-5-21-1337824034-2731376981-3755436523-1000\Control Panel\Desktop\Wallpaper = "C:\\Users\\Admin\\AppData\\Local\\Temp\\\\pidor.bmp" 701afacec588c55ddce7088c8fa65b93_JaffaCakes118.exe -
Drops file in Program Files directory 22 IoCs
Processes:
701afacec588c55ddce7088c8fa65b93_JaffaCakes118.exedescription ioc process File created C:\Program Files\f11a6f5df11a68b3210.lock 701afacec588c55ddce7088c8fa65b93_JaffaCakes118.exe File opened for modification C:\Program Files\CloseUnprotect.dotm 701afacec588c55ddce7088c8fa65b93_JaffaCakes118.exe File opened for modification C:\Program Files\ProtectMerge.csv 701afacec588c55ddce7088c8fa65b93_JaffaCakes118.exe File opened for modification C:\Program Files\ReceiveImport.ogg 701afacec588c55ddce7088c8fa65b93_JaffaCakes118.exe File opened for modification C:\Program Files\ResolveSelect.3gp 701afacec588c55ddce7088c8fa65b93_JaffaCakes118.exe File opened for modification C:\Program Files\UpdateUse.vstm 701afacec588c55ddce7088c8fa65b93_JaffaCakes118.exe File created C:\Program Files (x86)\f11a6f5df11a68b3210.lock 701afacec588c55ddce7088c8fa65b93_JaffaCakes118.exe File created C:\Program Files\FGXZN-DECRYPT.html 701afacec588c55ddce7088c8fa65b93_JaffaCakes118.exe File opened for modification C:\Program Files\JoinDisable.gif 701afacec588c55ddce7088c8fa65b93_JaffaCakes118.exe File opened for modification C:\Program Files\MergeJoin.wdp 701afacec588c55ddce7088c8fa65b93_JaffaCakes118.exe File opened for modification C:\Program Files\RevokeClose.gif 701afacec588c55ddce7088c8fa65b93_JaffaCakes118.exe File opened for modification C:\Program Files\ShowUnblock.vb 701afacec588c55ddce7088c8fa65b93_JaffaCakes118.exe File opened for modification C:\Program Files\SwitchPing.ex_ 701afacec588c55ddce7088c8fa65b93_JaffaCakes118.exe File opened for modification C:\Program Files\BlockPop.vdw 701afacec588c55ddce7088c8fa65b93_JaffaCakes118.exe File opened for modification C:\Program Files\CompareInstall.vbs 701afacec588c55ddce7088c8fa65b93_JaffaCakes118.exe File opened for modification C:\Program Files\ConfirmOptimize.emz 701afacec588c55ddce7088c8fa65b93_JaffaCakes118.exe File opened for modification C:\Program Files\RepairConfirm.emz 701afacec588c55ddce7088c8fa65b93_JaffaCakes118.exe File created C:\Program Files (x86)\FGXZN-DECRYPT.html 701afacec588c55ddce7088c8fa65b93_JaffaCakes118.exe File opened for modification C:\Program Files\ClearConvertFrom.wdp 701afacec588c55ddce7088c8fa65b93_JaffaCakes118.exe File opened for modification C:\Program Files\ImportRead.M2TS 701afacec588c55ddce7088c8fa65b93_JaffaCakes118.exe File opened for modification C:\Program Files\OptimizeCompare.jpe 701afacec588c55ddce7088c8fa65b93_JaffaCakes118.exe File opened for modification C:\Program Files\RepairConvertFrom.txt 701afacec588c55ddce7088c8fa65b93_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.
Processes:
701afacec588c55ddce7088c8fa65b93_JaffaCakes118.exedescription ioc process Key opened \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0 701afacec588c55ddce7088c8fa65b93_JaffaCakes118.exe Key value queried \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\ProcessorNameString 701afacec588c55ddce7088c8fa65b93_JaffaCakes118.exe Key value queried \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\Identifier 701afacec588c55ddce7088c8fa65b93_JaffaCakes118.exe -
Suspicious behavior: EnumeratesProcesses 4 IoCs
Processes:
701afacec588c55ddce7088c8fa65b93_JaffaCakes118.exepid process 228 701afacec588c55ddce7088c8fa65b93_JaffaCakes118.exe 228 701afacec588c55ddce7088c8fa65b93_JaffaCakes118.exe 228 701afacec588c55ddce7088c8fa65b93_JaffaCakes118.exe 228 701afacec588c55ddce7088c8fa65b93_JaffaCakes118.exe -
Suspicious use of AdjustPrivilegeToken 45 IoCs
Processes:
wmic.exevssvc.exedescription pid process Token: SeIncreaseQuotaPrivilege 3736 wmic.exe Token: SeSecurityPrivilege 3736 wmic.exe Token: SeTakeOwnershipPrivilege 3736 wmic.exe Token: SeLoadDriverPrivilege 3736 wmic.exe Token: SeSystemProfilePrivilege 3736 wmic.exe Token: SeSystemtimePrivilege 3736 wmic.exe Token: SeProfSingleProcessPrivilege 3736 wmic.exe Token: SeIncBasePriorityPrivilege 3736 wmic.exe Token: SeCreatePagefilePrivilege 3736 wmic.exe Token: SeBackupPrivilege 3736 wmic.exe Token: SeRestorePrivilege 3736 wmic.exe Token: SeShutdownPrivilege 3736 wmic.exe Token: SeDebugPrivilege 3736 wmic.exe Token: SeSystemEnvironmentPrivilege 3736 wmic.exe Token: SeRemoteShutdownPrivilege 3736 wmic.exe Token: SeUndockPrivilege 3736 wmic.exe Token: SeManageVolumePrivilege 3736 wmic.exe Token: 33 3736 wmic.exe Token: 34 3736 wmic.exe Token: 35 3736 wmic.exe Token: 36 3736 wmic.exe Token: SeIncreaseQuotaPrivilege 3736 wmic.exe Token: SeSecurityPrivilege 3736 wmic.exe Token: SeTakeOwnershipPrivilege 3736 wmic.exe Token: SeLoadDriverPrivilege 3736 wmic.exe Token: SeSystemProfilePrivilege 3736 wmic.exe Token: SeSystemtimePrivilege 3736 wmic.exe Token: SeProfSingleProcessPrivilege 3736 wmic.exe Token: SeIncBasePriorityPrivilege 3736 wmic.exe Token: SeCreatePagefilePrivilege 3736 wmic.exe Token: SeBackupPrivilege 3736 wmic.exe Token: SeRestorePrivilege 3736 wmic.exe Token: SeShutdownPrivilege 3736 wmic.exe Token: SeDebugPrivilege 3736 wmic.exe Token: SeSystemEnvironmentPrivilege 3736 wmic.exe Token: SeRemoteShutdownPrivilege 3736 wmic.exe Token: SeUndockPrivilege 3736 wmic.exe Token: SeManageVolumePrivilege 3736 wmic.exe Token: 33 3736 wmic.exe Token: 34 3736 wmic.exe Token: 35 3736 wmic.exe Token: 36 3736 wmic.exe Token: SeBackupPrivilege 4156 vssvc.exe Token: SeRestorePrivilege 4156 vssvc.exe Token: SeAuditPrivilege 4156 vssvc.exe -
Suspicious use of WriteProcessMemory 3 IoCs
Processes:
701afacec588c55ddce7088c8fa65b93_JaffaCakes118.exedescription pid process target process PID 228 wrote to memory of 3736 228 701afacec588c55ddce7088c8fa65b93_JaffaCakes118.exe wmic.exe PID 228 wrote to memory of 3736 228 701afacec588c55ddce7088c8fa65b93_JaffaCakes118.exe wmic.exe PID 228 wrote to memory of 3736 228 701afacec588c55ddce7088c8fa65b93_JaffaCakes118.exe wmic.exe -
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\701afacec588c55ddce7088c8fa65b93_JaffaCakes118.exe"C:\Users\Admin\AppData\Local\Temp\701afacec588c55ddce7088c8fa65b93_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
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of WriteProcessMemory
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C:\Windows\SysWOW64\wbem\wmic.exe"C:\Windows\system32\wbem\wmic.exe" shadowcopy delete2⤵
- Suspicious use of AdjustPrivilegeToken
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C:\Windows\system32\vssvc.exeC:\Windows\system32\vssvc.exe1⤵
- Suspicious use of AdjustPrivilegeToken
Network
MITRE ATT&CK Matrix ATT&CK v13
Replay Monitor
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Downloads
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F:\$RECYCLE.BIN\S-1-5-21-1337824034-2731376981-3755436523-1000\FGXZN-DECRYPT.htmlFilesize
64KB
MD5a537daf2328452806702ecea6caf58e3
SHA1a0c823e3dc942649376bb78e5cbbe9b789106101
SHA2568f13aa3cd3ae5ce0a961674d7b7a3716eb470f1624239421e2da7a8468e88976
SHA51257625e4acb671d1c2786a8a2847fc1e865292522bd813203a05036d6ba8e4f4b6f5c03bdafea671015d69fb82e1795d24430ad74a505f943da6cda3fdac13009