Analysis
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max time kernel
140s -
max time network
122s -
platform
windows7_x64 -
resource
win7-20240215-en -
resource tags
arch:x64arch:x86image:win7-20240215-enlocale:en-usos:windows7-x64system -
submitted
23-05-2024 09:09
Static task
static1
Behavioral task
behavioral1
Sample
6a7072df1cee31eefc15368fbb805f9d_JaffaCakes118.exe
Resource
win7-20240215-en
Behavioral task
behavioral2
Sample
6a7072df1cee31eefc15368fbb805f9d_JaffaCakes118.exe
Resource
win10v2004-20240508-en
General
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Target
6a7072df1cee31eefc15368fbb805f9d_JaffaCakes118.exe
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Size
645KB
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MD5
6a7072df1cee31eefc15368fbb805f9d
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SHA1
fa2499d515b2395814014ef6c6ed2c4149fa8a9d
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SHA256
7bb4305a647d0126fe5f984549c3b92bcb6af11719b78112f6d795eaaecf2e6d
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SHA512
3a57f9b48bee561f6f3645195f73bea1d9c676f6607ddc8101227d929525b8844ac94694ce1f29b2dc8cba84708c3de8f6ee6b3e6234b80382f96201e17fbdaa
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SSDEEP
6144:oog5I9axysg5OPpO7zwGtqhyRBIZi4zVh2RiUX9o:Hgu9my/5OPp+zwMSlHXs
Malware Config
Extracted
F:\$RECYCLE.BIN\S-1-5-21-2248906074-2862704502-246302768-1000\RWJMLYTSJ-DECRYPT.txt
http://gandcrabmfe6mnef.onion/1244a3b28013bd8c
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 (288) files with added filename extension
This suggests ransomware activity of encrypting all the files on the system.
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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:
6a7072df1cee31eefc15368fbb805f9d_JaffaCakes118.exedescription ioc process File opened (read-only) \??\J: 6a7072df1cee31eefc15368fbb805f9d_JaffaCakes118.exe File opened (read-only) \??\M: 6a7072df1cee31eefc15368fbb805f9d_JaffaCakes118.exe File opened (read-only) \??\P: 6a7072df1cee31eefc15368fbb805f9d_JaffaCakes118.exe File opened (read-only) \??\Y: 6a7072df1cee31eefc15368fbb805f9d_JaffaCakes118.exe File opened (read-only) \??\G: 6a7072df1cee31eefc15368fbb805f9d_JaffaCakes118.exe File opened (read-only) \??\H: 6a7072df1cee31eefc15368fbb805f9d_JaffaCakes118.exe File opened (read-only) \??\V: 6a7072df1cee31eefc15368fbb805f9d_JaffaCakes118.exe File opened (read-only) \??\B: 6a7072df1cee31eefc15368fbb805f9d_JaffaCakes118.exe File opened (read-only) \??\T: 6a7072df1cee31eefc15368fbb805f9d_JaffaCakes118.exe File opened (read-only) \??\U: 6a7072df1cee31eefc15368fbb805f9d_JaffaCakes118.exe File opened (read-only) \??\A: 6a7072df1cee31eefc15368fbb805f9d_JaffaCakes118.exe File opened (read-only) \??\I: 6a7072df1cee31eefc15368fbb805f9d_JaffaCakes118.exe File opened (read-only) \??\L: 6a7072df1cee31eefc15368fbb805f9d_JaffaCakes118.exe File opened (read-only) \??\N: 6a7072df1cee31eefc15368fbb805f9d_JaffaCakes118.exe File opened (read-only) \??\O: 6a7072df1cee31eefc15368fbb805f9d_JaffaCakes118.exe File opened (read-only) \??\Q: 6a7072df1cee31eefc15368fbb805f9d_JaffaCakes118.exe File opened (read-only) \??\R: 6a7072df1cee31eefc15368fbb805f9d_JaffaCakes118.exe File opened (read-only) \??\S: 6a7072df1cee31eefc15368fbb805f9d_JaffaCakes118.exe File opened (read-only) \??\E: 6a7072df1cee31eefc15368fbb805f9d_JaffaCakes118.exe File opened (read-only) \??\K: 6a7072df1cee31eefc15368fbb805f9d_JaffaCakes118.exe File opened (read-only) \??\Z: 6a7072df1cee31eefc15368fbb805f9d_JaffaCakes118.exe File opened (read-only) \??\W: 6a7072df1cee31eefc15368fbb805f9d_JaffaCakes118.exe File opened (read-only) \??\X: 6a7072df1cee31eefc15368fbb805f9d_JaffaCakes118.exe -
Sets desktop wallpaper using registry 2 TTPs 1 IoCs
Processes:
6a7072df1cee31eefc15368fbb805f9d_JaffaCakes118.exedescription ioc process Set value (str) \REGISTRY\USER\S-1-5-21-2248906074-2862704502-246302768-1000\Control Panel\Desktop\Wallpaper = "C:\\Users\\Admin\\AppData\\Local\\Temp\\\\bxmeoengtf.bmp" 6a7072df1cee31eefc15368fbb805f9d_JaffaCakes118.exe -
Drops file in Program Files directory 41 IoCs
Processes:
6a7072df1cee31eefc15368fbb805f9d_JaffaCakes118.exedescription ioc process File created C:\Program Files\8013ba618013bd8f31f.lock 6a7072df1cee31eefc15368fbb805f9d_JaffaCakes118.exe File opened for modification C:\Program Files\ConvertFromSet.M2TS 6a7072df1cee31eefc15368fbb805f9d_JaffaCakes118.exe File opened for modification C:\Program Files\DenyUnlock.mp2v 6a7072df1cee31eefc15368fbb805f9d_JaffaCakes118.exe File opened for modification C:\Program Files\DisconnectUnblock.aifc 6a7072df1cee31eefc15368fbb805f9d_JaffaCakes118.exe File opened for modification C:\Program Files\GrantJoin.ps1 6a7072df1cee31eefc15368fbb805f9d_JaffaCakes118.exe File opened for modification C:\Program Files\UninstallStart.hta 6a7072df1cee31eefc15368fbb805f9d_JaffaCakes118.exe File created C:\Program Files (x86)\Microsoft SQL Server Compact Edition\v3.5\8013ba618013bd8f31f.lock 6a7072df1cee31eefc15368fbb805f9d_JaffaCakes118.exe File opened for modification C:\Program Files\AddMeasure.dot 6a7072df1cee31eefc15368fbb805f9d_JaffaCakes118.exe File opened for modification C:\Program Files\InstallPublish.midi 6a7072df1cee31eefc15368fbb805f9d_JaffaCakes118.exe File opened for modification C:\Program Files\NewGroup.m1v 6a7072df1cee31eefc15368fbb805f9d_JaffaCakes118.exe File opened for modification C:\Program Files\RestartRead.DVR-MS 6a7072df1cee31eefc15368fbb805f9d_JaffaCakes118.exe File opened for modification C:\Program Files\SelectRevoke.mp4v 6a7072df1cee31eefc15368fbb805f9d_JaffaCakes118.exe File opened for modification C:\Program Files\UnlockEdit.ps1 6a7072df1cee31eefc15368fbb805f9d_JaffaCakes118.exe File opened for modification C:\Program Files\UnpublishTest.xltx 6a7072df1cee31eefc15368fbb805f9d_JaffaCakes118.exe File created C:\Program Files (x86)\Microsoft SQL Server Compact Edition\v3.5\Desktop\RWJMLYTSJ-DECRYPT.txt 6a7072df1cee31eefc15368fbb805f9d_JaffaCakes118.exe File opened for modification C:\Program Files\HideSave.ini 6a7072df1cee31eefc15368fbb805f9d_JaffaCakes118.exe File opened for modification C:\Program Files\OpenStart.m4v 6a7072df1cee31eefc15368fbb805f9d_JaffaCakes118.exe File opened for modification C:\Program Files\SubmitLock.jpeg 6a7072df1cee31eefc15368fbb805f9d_JaffaCakes118.exe File opened for modification C:\Program Files\SuspendConvertFrom.hta 6a7072df1cee31eefc15368fbb805f9d_JaffaCakes118.exe File opened for modification C:\Program Files\WriteDeny.wmv 6a7072df1cee31eefc15368fbb805f9d_JaffaCakes118.exe File opened for modification C:\Program Files\AddSave.tiff 6a7072df1cee31eefc15368fbb805f9d_JaffaCakes118.exe File opened for modification C:\Program Files\NewClose.cfg 6a7072df1cee31eefc15368fbb805f9d_JaffaCakes118.exe File created C:\Program Files (x86)\Microsoft SQL Server Compact Edition\RWJMLYTSJ-DECRYPT.txt 6a7072df1cee31eefc15368fbb805f9d_JaffaCakes118.exe File created C:\Program Files (x86)\Microsoft SQL Server Compact Edition\v3.5\Desktop\8013ba618013bd8f31f.lock 6a7072df1cee31eefc15368fbb805f9d_JaffaCakes118.exe File opened for modification C:\Program Files\GetConvertTo.ogg 6a7072df1cee31eefc15368fbb805f9d_JaffaCakes118.exe File opened for modification C:\Program Files\RestartCompress.wav 6a7072df1cee31eefc15368fbb805f9d_JaffaCakes118.exe File created C:\Program Files\RWJMLYTSJ-DECRYPT.txt 6a7072df1cee31eefc15368fbb805f9d_JaffaCakes118.exe File opened for modification C:\Program Files\BlockImport.xps 6a7072df1cee31eefc15368fbb805f9d_JaffaCakes118.exe File opened for modification C:\Program Files\CheckpointShow.ttf 6a7072df1cee31eefc15368fbb805f9d_JaffaCakes118.exe File opened for modification C:\Program Files\DebugAssert.M2T 6a7072df1cee31eefc15368fbb805f9d_JaffaCakes118.exe File opened for modification C:\Program Files\UnblockSuspend.pdf 6a7072df1cee31eefc15368fbb805f9d_JaffaCakes118.exe File created C:\Program Files (x86)\8013ba618013bd8f31f.lock 6a7072df1cee31eefc15368fbb805f9d_JaffaCakes118.exe File created C:\Program Files (x86)\Microsoft SQL Server Compact Edition\8013ba618013bd8f31f.lock 6a7072df1cee31eefc15368fbb805f9d_JaffaCakes118.exe File opened for modification C:\Program Files\SkipRemove.hta 6a7072df1cee31eefc15368fbb805f9d_JaffaCakes118.exe File opened for modification C:\Program Files\UseUnpublish.eprtx 6a7072df1cee31eefc15368fbb805f9d_JaffaCakes118.exe File opened for modification C:\Program Files\PublishUnregister.mpeg2 6a7072df1cee31eefc15368fbb805f9d_JaffaCakes118.exe File opened for modification C:\Program Files\RedoUnprotect.ttc 6a7072df1cee31eefc15368fbb805f9d_JaffaCakes118.exe File opened for modification C:\Program Files\SaveEdit.rle 6a7072df1cee31eefc15368fbb805f9d_JaffaCakes118.exe File opened for modification C:\Program Files\TraceRead.3gp 6a7072df1cee31eefc15368fbb805f9d_JaffaCakes118.exe File created C:\Program Files (x86)\RWJMLYTSJ-DECRYPT.txt 6a7072df1cee31eefc15368fbb805f9d_JaffaCakes118.exe File created C:\Program Files (x86)\Microsoft SQL Server Compact Edition\v3.5\RWJMLYTSJ-DECRYPT.txt 6a7072df1cee31eefc15368fbb805f9d_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:
6a7072df1cee31eefc15368fbb805f9d_JaffaCakes118.exedescription ioc process Key value queried \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\ProcessorNameString 6a7072df1cee31eefc15368fbb805f9d_JaffaCakes118.exe Key value queried \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\Identifier 6a7072df1cee31eefc15368fbb805f9d_JaffaCakes118.exe Key opened \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0 6a7072df1cee31eefc15368fbb805f9d_JaffaCakes118.exe -
Suspicious behavior: EnumeratesProcesses 2 IoCs
Processes:
6a7072df1cee31eefc15368fbb805f9d_JaffaCakes118.exepid process 3000 6a7072df1cee31eefc15368fbb805f9d_JaffaCakes118.exe 3000 6a7072df1cee31eefc15368fbb805f9d_JaffaCakes118.exe -
Suspicious use of AdjustPrivilegeToken 43 IoCs
Processes:
wmic.exevssvc.exedescription pid process Token: SeIncreaseQuotaPrivilege 2272 wmic.exe Token: SeSecurityPrivilege 2272 wmic.exe Token: SeTakeOwnershipPrivilege 2272 wmic.exe Token: SeLoadDriverPrivilege 2272 wmic.exe Token: SeSystemProfilePrivilege 2272 wmic.exe Token: SeSystemtimePrivilege 2272 wmic.exe Token: SeProfSingleProcessPrivilege 2272 wmic.exe Token: SeIncBasePriorityPrivilege 2272 wmic.exe Token: SeCreatePagefilePrivilege 2272 wmic.exe Token: SeBackupPrivilege 2272 wmic.exe Token: SeRestorePrivilege 2272 wmic.exe Token: SeShutdownPrivilege 2272 wmic.exe Token: SeDebugPrivilege 2272 wmic.exe Token: SeSystemEnvironmentPrivilege 2272 wmic.exe Token: SeRemoteShutdownPrivilege 2272 wmic.exe Token: SeUndockPrivilege 2272 wmic.exe Token: SeManageVolumePrivilege 2272 wmic.exe Token: 33 2272 wmic.exe Token: 34 2272 wmic.exe Token: 35 2272 wmic.exe Token: SeIncreaseQuotaPrivilege 2272 wmic.exe Token: SeSecurityPrivilege 2272 wmic.exe Token: SeTakeOwnershipPrivilege 2272 wmic.exe Token: SeLoadDriverPrivilege 2272 wmic.exe Token: SeSystemProfilePrivilege 2272 wmic.exe Token: SeSystemtimePrivilege 2272 wmic.exe Token: SeProfSingleProcessPrivilege 2272 wmic.exe Token: SeIncBasePriorityPrivilege 2272 wmic.exe Token: SeCreatePagefilePrivilege 2272 wmic.exe Token: SeBackupPrivilege 2272 wmic.exe Token: SeRestorePrivilege 2272 wmic.exe Token: SeShutdownPrivilege 2272 wmic.exe Token: SeDebugPrivilege 2272 wmic.exe Token: SeSystemEnvironmentPrivilege 2272 wmic.exe Token: SeRemoteShutdownPrivilege 2272 wmic.exe Token: SeUndockPrivilege 2272 wmic.exe Token: SeManageVolumePrivilege 2272 wmic.exe Token: 33 2272 wmic.exe Token: 34 2272 wmic.exe Token: 35 2272 wmic.exe Token: SeBackupPrivilege 1596 vssvc.exe Token: SeRestorePrivilege 1596 vssvc.exe Token: SeAuditPrivilege 1596 vssvc.exe -
Suspicious use of WriteProcessMemory 4 IoCs
Processes:
6a7072df1cee31eefc15368fbb805f9d_JaffaCakes118.exedescription pid process target process PID 3000 wrote to memory of 2272 3000 6a7072df1cee31eefc15368fbb805f9d_JaffaCakes118.exe wmic.exe PID 3000 wrote to memory of 2272 3000 6a7072df1cee31eefc15368fbb805f9d_JaffaCakes118.exe wmic.exe PID 3000 wrote to memory of 2272 3000 6a7072df1cee31eefc15368fbb805f9d_JaffaCakes118.exe wmic.exe PID 3000 wrote to memory of 2272 3000 6a7072df1cee31eefc15368fbb805f9d_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\6a7072df1cee31eefc15368fbb805f9d_JaffaCakes118.exe"C:\Users\Admin\AppData\Local\Temp\6a7072df1cee31eefc15368fbb805f9d_JaffaCakes118.exe"1⤵
- 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-1-5-21-2248906074-2862704502-246302768-1000\RWJMLYTSJ-DECRYPT.txtFilesize
8KB
MD593e105c3dc8647457c134f4d93e2eb48
SHA178ac87203f1a7c994bba6398c8fb66c8d1f205d4
SHA256710393144785f315a2a26753277ecc6ff401a1a447083be5b2b3ccbfc130f6a6
SHA5122354d01c6600e081e80fc9d375d93aeffffa14d314dc47cdde28cf7eecb4ddd0b962bc9e39aa93a77cb59cca48e59a90494252d3f90b3c5c8c59643606b641f0
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memory/3000-0-0x0000000000400000-0x00000000004A9000-memory.dmpFilesize
676KB
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memory/3000-3-0x0000000000400000-0x000000000041B000-memory.dmpFilesize
108KB
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memory/3000-2-0x00000000005E0000-0x00000000006E0000-memory.dmpFilesize
1024KB
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memory/3000-736-0x0000000000400000-0x00000000004A9000-memory.dmpFilesize
676KB
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memory/3000-737-0x00000000005E0000-0x00000000006E0000-memory.dmpFilesize
1024KB
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memory/3000-739-0x0000000000400000-0x000000000041B000-memory.dmpFilesize
108KB