Analysis
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max time kernel
140s -
max time network
118s -
platform
windows7_x64 -
resource
win7-20240220-en -
resource tags
arch:x64arch:x86image:win7-20240220-enlocale:en-usos:windows7-x64system -
submitted
06-05-2024 01:59
Static task
static1
Behavioral task
behavioral1
Sample
1a3ae8198cd91f4e8c783e1c9be8d153_JaffaCakes118.exe
Resource
win7-20240220-en
Behavioral task
behavioral2
Sample
1a3ae8198cd91f4e8c783e1c9be8d153_JaffaCakes118.exe
Resource
win10v2004-20240419-en
General
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Target
1a3ae8198cd91f4e8c783e1c9be8d153_JaffaCakes118.exe
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Size
645KB
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MD5
1a3ae8198cd91f4e8c783e1c9be8d153
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SHA1
3b362ed11730e4b08a6943726b1efb51ec651891
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SHA256
21b57732a3ad05f6fd016725d55c6cd59fe733b30d4b04bc2719d14d29336d6b
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SHA512
6eb87ea2ce264bdc8bbb8a790f0e88299853f5690f7aa9c354eb51049c721a939263ba84aed41162ded917fe0626b1fa8d8136a4797cee81f859a5e823a6f830
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SSDEEP
12288:49vWzeRcl7cJhybXuQope9pLSz8nTK9Tq4Dg6WeUlXO/RyZ7:49qGydop21SYnTK9TSl+EZ7
Malware Config
Extracted
F:\$RECYCLE.BIN\RPPTP-DECRYPT.txt
http://gandcrabmfe6mnef.onion/128f51d67b12a494
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 (264) 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.
description ioc Process File opened (read-only) \??\L: 1a3ae8198cd91f4e8c783e1c9be8d153_JaffaCakes118.exe File opened (read-only) \??\M: 1a3ae8198cd91f4e8c783e1c9be8d153_JaffaCakes118.exe File opened (read-only) \??\N: 1a3ae8198cd91f4e8c783e1c9be8d153_JaffaCakes118.exe File opened (read-only) \??\O: 1a3ae8198cd91f4e8c783e1c9be8d153_JaffaCakes118.exe File opened (read-only) \??\P: 1a3ae8198cd91f4e8c783e1c9be8d153_JaffaCakes118.exe File opened (read-only) \??\A: 1a3ae8198cd91f4e8c783e1c9be8d153_JaffaCakes118.exe File opened (read-only) \??\I: 1a3ae8198cd91f4e8c783e1c9be8d153_JaffaCakes118.exe File opened (read-only) \??\J: 1a3ae8198cd91f4e8c783e1c9be8d153_JaffaCakes118.exe File opened (read-only) \??\Y: 1a3ae8198cd91f4e8c783e1c9be8d153_JaffaCakes118.exe File opened (read-only) \??\Z: 1a3ae8198cd91f4e8c783e1c9be8d153_JaffaCakes118.exe File opened (read-only) \??\V: 1a3ae8198cd91f4e8c783e1c9be8d153_JaffaCakes118.exe File opened (read-only) \??\W: 1a3ae8198cd91f4e8c783e1c9be8d153_JaffaCakes118.exe File opened (read-only) \??\Q: 1a3ae8198cd91f4e8c783e1c9be8d153_JaffaCakes118.exe File opened (read-only) \??\R: 1a3ae8198cd91f4e8c783e1c9be8d153_JaffaCakes118.exe File opened (read-only) \??\T: 1a3ae8198cd91f4e8c783e1c9be8d153_JaffaCakes118.exe File opened (read-only) \??\E: 1a3ae8198cd91f4e8c783e1c9be8d153_JaffaCakes118.exe File opened (read-only) \??\G: 1a3ae8198cd91f4e8c783e1c9be8d153_JaffaCakes118.exe File opened (read-only) \??\K: 1a3ae8198cd91f4e8c783e1c9be8d153_JaffaCakes118.exe File opened (read-only) \??\U: 1a3ae8198cd91f4e8c783e1c9be8d153_JaffaCakes118.exe File opened (read-only) \??\X: 1a3ae8198cd91f4e8c783e1c9be8d153_JaffaCakes118.exe File opened (read-only) \??\B: 1a3ae8198cd91f4e8c783e1c9be8d153_JaffaCakes118.exe File opened (read-only) \??\H: 1a3ae8198cd91f4e8c783e1c9be8d153_JaffaCakes118.exe File opened (read-only) \??\S: 1a3ae8198cd91f4e8c783e1c9be8d153_JaffaCakes118.exe -
Sets desktop wallpaper using registry 2 TTPs 1 IoCs
description ioc Process Set value (str) \REGISTRY\USER\S-1-5-21-2721934792-624042501-2768869379-1000\Control Panel\Desktop\Wallpaper = "C:\\Users\\Admin\\AppData\\Local\\Temp\\\\bxmeoengtf.bmp" 1a3ae8198cd91f4e8c783e1c9be8d153_JaffaCakes118.exe -
Drops file in Program Files directory 41 IoCs
description ioc Process File opened for modification C:\Program Files\OutMeasure.html 1a3ae8198cd91f4e8c783e1c9be8d153_JaffaCakes118.exe File opened for modification C:\Program Files\RedoPush.eps 1a3ae8198cd91f4e8c783e1c9be8d153_JaffaCakes118.exe File opened for modification C:\Program Files\SwitchDisable.xla 1a3ae8198cd91f4e8c783e1c9be8d153_JaffaCakes118.exe File opened for modification C:\Program Files\SyncUpdate.dwfx 1a3ae8198cd91f4e8c783e1c9be8d153_JaffaCakes118.exe File created C:\Program Files (x86)\Microsoft SQL Server Compact Edition\RPPTP-DECRYPT.txt 1a3ae8198cd91f4e8c783e1c9be8d153_JaffaCakes118.exe File created C:\Program Files (x86)\Microsoft SQL Server Compact Edition\7b12a3797b12a4976e.lock 1a3ae8198cd91f4e8c783e1c9be8d153_JaffaCakes118.exe File opened for modification C:\Program Files\FindGet.mhtml 1a3ae8198cd91f4e8c783e1c9be8d153_JaffaCakes118.exe File opened for modification C:\Program Files\MeasureReset.mp4 1a3ae8198cd91f4e8c783e1c9be8d153_JaffaCakes118.exe File opened for modification C:\Program Files\ProtectOpen.tmp 1a3ae8198cd91f4e8c783e1c9be8d153_JaffaCakes118.exe File opened for modification C:\Program Files\ResumeMount.svgz 1a3ae8198cd91f4e8c783e1c9be8d153_JaffaCakes118.exe File created C:\Program Files (x86)\Microsoft SQL Server Compact Edition\v3.5\RPPTP-DECRYPT.txt 1a3ae8198cd91f4e8c783e1c9be8d153_JaffaCakes118.exe File opened for modification C:\Program Files\BackupRestore.3gp 1a3ae8198cd91f4e8c783e1c9be8d153_JaffaCakes118.exe File opened for modification C:\Program Files\LockTrace.xhtml 1a3ae8198cd91f4e8c783e1c9be8d153_JaffaCakes118.exe File opened for modification C:\Program Files\JoinSuspend.contact 1a3ae8198cd91f4e8c783e1c9be8d153_JaffaCakes118.exe File opened for modification C:\Program Files\LockDeny.html 1a3ae8198cd91f4e8c783e1c9be8d153_JaffaCakes118.exe File opened for modification C:\Program Files\ShowComplete.mpeg 1a3ae8198cd91f4e8c783e1c9be8d153_JaffaCakes118.exe File opened for modification C:\Program Files\SwitchRead.mhtml 1a3ae8198cd91f4e8c783e1c9be8d153_JaffaCakes118.exe File opened for modification C:\Program Files\UnlockUnpublish.txt 1a3ae8198cd91f4e8c783e1c9be8d153_JaffaCakes118.exe File created C:\Program Files (x86)\RPPTP-DECRYPT.txt 1a3ae8198cd91f4e8c783e1c9be8d153_JaffaCakes118.exe File opened for modification C:\Program Files\AddUninstall.rm 1a3ae8198cd91f4e8c783e1c9be8d153_JaffaCakes118.exe File opened for modification C:\Program Files\HideSkip.bmp 1a3ae8198cd91f4e8c783e1c9be8d153_JaffaCakes118.exe File created C:\Program Files (x86)\Microsoft SQL Server Compact Edition\v3.5\Desktop\7b12a3797b12a4976e.lock 1a3ae8198cd91f4e8c783e1c9be8d153_JaffaCakes118.exe File opened for modification C:\Program Files\SetNew.pptx 1a3ae8198cd91f4e8c783e1c9be8d153_JaffaCakes118.exe File created C:\Program Files (x86)\7b12a3797b12a4976e.lock 1a3ae8198cd91f4e8c783e1c9be8d153_JaffaCakes118.exe File opened for modification C:\Program Files\BlockExpand.wmf 1a3ae8198cd91f4e8c783e1c9be8d153_JaffaCakes118.exe File opened for modification C:\Program Files\CompressInitialize.edrwx 1a3ae8198cd91f4e8c783e1c9be8d153_JaffaCakes118.exe File opened for modification C:\Program Files\PublishSet.inf 1a3ae8198cd91f4e8c783e1c9be8d153_JaffaCakes118.exe File opened for modification C:\Program Files\LimitCopy.wma 1a3ae8198cd91f4e8c783e1c9be8d153_JaffaCakes118.exe File opened for modification C:\Program Files\OpenTrace.mpeg3 1a3ae8198cd91f4e8c783e1c9be8d153_JaffaCakes118.exe File opened for modification C:\Program Files\RegisterSync.htm 1a3ae8198cd91f4e8c783e1c9be8d153_JaffaCakes118.exe File opened for modification C:\Program Files\TestRestore.vsx 1a3ae8198cd91f4e8c783e1c9be8d153_JaffaCakes118.exe File created C:\Program Files (x86)\Microsoft SQL Server Compact Edition\v3.5\7b12a3797b12a4976e.lock 1a3ae8198cd91f4e8c783e1c9be8d153_JaffaCakes118.exe File created C:\Program Files (x86)\Microsoft SQL Server Compact Edition\v3.5\Desktop\RPPTP-DECRYPT.txt 1a3ae8198cd91f4e8c783e1c9be8d153_JaffaCakes118.exe File created C:\Program Files\RPPTP-DECRYPT.txt 1a3ae8198cd91f4e8c783e1c9be8d153_JaffaCakes118.exe File opened for modification C:\Program Files\DisableStart.xml 1a3ae8198cd91f4e8c783e1c9be8d153_JaffaCakes118.exe File opened for modification C:\Program Files\RequestClose.sql 1a3ae8198cd91f4e8c783e1c9be8d153_JaffaCakes118.exe File opened for modification C:\Program Files\SearchSwitch.mpp 1a3ae8198cd91f4e8c783e1c9be8d153_JaffaCakes118.exe File created C:\Program Files\7b12a3797b12a4976e.lock 1a3ae8198cd91f4e8c783e1c9be8d153_JaffaCakes118.exe File opened for modification C:\Program Files\NewCopy.pub 1a3ae8198cd91f4e8c783e1c9be8d153_JaffaCakes118.exe File opened for modification C:\Program Files\ResolveImport.mhtml 1a3ae8198cd91f4e8c783e1c9be8d153_JaffaCakes118.exe File opened for modification C:\Program Files\SaveWrite.vsw 1a3ae8198cd91f4e8c783e1c9be8d153_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 1a3ae8198cd91f4e8c783e1c9be8d153_JaffaCakes118.exe Key value queried \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\ProcessorNameString 1a3ae8198cd91f4e8c783e1c9be8d153_JaffaCakes118.exe Key value queried \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\Identifier 1a3ae8198cd91f4e8c783e1c9be8d153_JaffaCakes118.exe -
Suspicious behavior: EnumeratesProcesses 3 IoCs
pid Process 1684 1a3ae8198cd91f4e8c783e1c9be8d153_JaffaCakes118.exe 1684 1a3ae8198cd91f4e8c783e1c9be8d153_JaffaCakes118.exe 1684 1a3ae8198cd91f4e8c783e1c9be8d153_JaffaCakes118.exe -
Suspicious use of AdjustPrivilegeToken 43 IoCs
description pid Process Token: SeIncreaseQuotaPrivilege 2312 wmic.exe Token: SeSecurityPrivilege 2312 wmic.exe Token: SeTakeOwnershipPrivilege 2312 wmic.exe Token: SeLoadDriverPrivilege 2312 wmic.exe Token: SeSystemProfilePrivilege 2312 wmic.exe Token: SeSystemtimePrivilege 2312 wmic.exe Token: SeProfSingleProcessPrivilege 2312 wmic.exe Token: SeIncBasePriorityPrivilege 2312 wmic.exe Token: SeCreatePagefilePrivilege 2312 wmic.exe Token: SeBackupPrivilege 2312 wmic.exe Token: SeRestorePrivilege 2312 wmic.exe Token: SeShutdownPrivilege 2312 wmic.exe Token: SeDebugPrivilege 2312 wmic.exe Token: SeSystemEnvironmentPrivilege 2312 wmic.exe Token: SeRemoteShutdownPrivilege 2312 wmic.exe Token: SeUndockPrivilege 2312 wmic.exe Token: SeManageVolumePrivilege 2312 wmic.exe Token: 33 2312 wmic.exe Token: 34 2312 wmic.exe Token: 35 2312 wmic.exe Token: SeIncreaseQuotaPrivilege 2312 wmic.exe Token: SeSecurityPrivilege 2312 wmic.exe Token: SeTakeOwnershipPrivilege 2312 wmic.exe Token: SeLoadDriverPrivilege 2312 wmic.exe Token: SeSystemProfilePrivilege 2312 wmic.exe Token: SeSystemtimePrivilege 2312 wmic.exe Token: SeProfSingleProcessPrivilege 2312 wmic.exe Token: SeIncBasePriorityPrivilege 2312 wmic.exe Token: SeCreatePagefilePrivilege 2312 wmic.exe Token: SeBackupPrivilege 2312 wmic.exe Token: SeRestorePrivilege 2312 wmic.exe Token: SeShutdownPrivilege 2312 wmic.exe Token: SeDebugPrivilege 2312 wmic.exe Token: SeSystemEnvironmentPrivilege 2312 wmic.exe Token: SeRemoteShutdownPrivilege 2312 wmic.exe Token: SeUndockPrivilege 2312 wmic.exe Token: SeManageVolumePrivilege 2312 wmic.exe Token: 33 2312 wmic.exe Token: 34 2312 wmic.exe Token: 35 2312 wmic.exe Token: SeBackupPrivilege 2124 vssvc.exe Token: SeRestorePrivilege 2124 vssvc.exe Token: SeAuditPrivilege 2124 vssvc.exe -
Suspicious use of WriteProcessMemory 4 IoCs
description pid Process procid_target PID 1684 wrote to memory of 2312 1684 1a3ae8198cd91f4e8c783e1c9be8d153_JaffaCakes118.exe 29 PID 1684 wrote to memory of 2312 1684 1a3ae8198cd91f4e8c783e1c9be8d153_JaffaCakes118.exe 29 PID 1684 wrote to memory of 2312 1684 1a3ae8198cd91f4e8c783e1c9be8d153_JaffaCakes118.exe 29 PID 1684 wrote to memory of 2312 1684 1a3ae8198cd91f4e8c783e1c9be8d153_JaffaCakes118.exe 29 -
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\1a3ae8198cd91f4e8c783e1c9be8d153_JaffaCakes118.exe"C:\Users\Admin\AppData\Local\Temp\1a3ae8198cd91f4e8c783e1c9be8d153_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
PID:1684 -
C:\Windows\SysWOW64\wbem\wmic.exe"C:\Windows\system32\wbem\wmic.exe" shadowcopy delete2⤵
- Suspicious use of AdjustPrivilegeToken
PID:2312
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C:\Windows\system32\vssvc.exeC:\Windows\system32\vssvc.exe1⤵
- Suspicious use of AdjustPrivilegeToken
PID:2124
Network
MITRE ATT&CK Enterprise v15
Replay Monitor
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Downloads
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Filesize
8KB
MD523681e4631fdc81ccb5128b732b9aaf2
SHA1205b9a18caf8785429aefc7209b1fb6614d7e419
SHA256b3bf74710734b76b848bd5b3c2f8d443473bb1dc3f5737f9d83262b9fda92536
SHA512b0253cf690d8c7a3d2be9427138c46216d6162e589084f870925ec0ceba2f08ae0b13f96abe9ce82a677fb41797a43e52c582c2ae039ea7138b2829ce265f95d