Analysis
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max time kernel
150s -
max time network
150s -
platform
windows7_x64 -
resource
win7-20240708-en -
resource tags
arch:x64arch:x86image:win7-20240708-enlocale:en-usos:windows7-x64system -
submitted
30-11-2024 01:00
Static task
static1
Behavioral task
behavioral1
Sample
test.exe
Resource
win7-20240708-en
Behavioral task
behavioral2
Sample
test.exe
Resource
win10v2004-20241007-en
General
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Target
test.exe
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Size
297KB
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MD5
314558f9a6da39ffd12cba6c1064b3b8
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SHA1
2c416cbfa8aeee687534b7c0888d411c0a837c59
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SHA256
64a45b42204cf4412dc2891368a4b72670642a008b13f3d99f6d3d42de95a842
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SHA512
41fdd3cff2e4620c0dfc7adca6a985ba5af69c1e72be409ae8d206534e32e1d3d34358f3f90521f57969c3cdf391442f4dfeba2a174b3abcbe72257d36706947
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SSDEEP
6144:ZUL4NWKzjkaphkIOe2q4EVSh/Bw/mhMgAB:ZUsNWK3bT4EneIB
Malware Config
Extracted
C:\$Recycle.Bin\S-1-5-21-3551809350-4263495960-1443967649-1000\HNENJB-DECRYPT.txt
http://gandcrabmfe6mnef.onion/47ffd42a7a0803ce
Signatures
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Gandcrab
Gandcrab is a Trojan horse that encrypts files on a computer.
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Gandcrab family
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Deletes shadow copies 3 TTPs
Ransomware often targets backup files to inhibit system recovery.
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Renames multiple (278) files with added filename extension
This suggests ransomware activity of encrypting all the files on the system.
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Credentials from Password Stores: Windows Credential Manager 1 TTPs
Suspicious access to Credentials History.
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Drops startup file 2 IoCs
description ioc Process File created C:\Users\Admin\AppData\Roaming\Microsoft\Word\STARTUP\HNENJB-DECRYPT.txt test.exe File created C:\Users\Admin\AppData\Roaming\Microsoft\Word\STARTUP\7a0804237a0803c3116.lock test.exe -
Reads user/profile data of web browsers 3 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) \??\W: test.exe File opened (read-only) \??\X: test.exe File opened (read-only) \??\Z: test.exe File opened (read-only) \??\I: test.exe File opened (read-only) \??\M: test.exe File opened (read-only) \??\N: test.exe File opened (read-only) \??\O: test.exe File opened (read-only) \??\R: test.exe File opened (read-only) \??\V: test.exe File opened (read-only) \??\A: test.exe File opened (read-only) \??\B: test.exe File opened (read-only) \??\G: test.exe File opened (read-only) \??\P: test.exe File opened (read-only) \??\Q: test.exe File opened (read-only) \??\S: test.exe File opened (read-only) \??\Y: test.exe File opened (read-only) \??\T: test.exe File opened (read-only) \??\U: test.exe File opened (read-only) \??\E: test.exe File opened (read-only) \??\H: test.exe File opened (read-only) \??\J: test.exe File opened (read-only) \??\K: test.exe File opened (read-only) \??\L: test.exe -
Sets desktop wallpaper using registry 2 TTPs 1 IoCs
description ioc Process Set value (str) \REGISTRY\USER\S-1-5-21-3551809350-4263495960-1443967649-1000\Control Panel\Desktop\Wallpaper = "C:\\Users\\Admin\\AppData\\Local\\Temp\\\\pidor.bmp" test.exe -
Drops file in Program Files directory 22 IoCs
description ioc Process File opened for modification C:\Program Files\InvokeWatch.xlsm test.exe File opened for modification C:\Program Files\SearchMerge.dxf test.exe File created C:\Program Files (x86)\7a0804237a0803c3116.lock test.exe File created C:\Program Files (x86)\Microsoft SQL Server Compact Edition\v3.5\Desktop\HNENJB-DECRYPT.txt test.exe File opened for modification C:\Program Files\StartInstall.tif test.exe File opened for modification C:\Program Files\UninstallGroup.ADTS test.exe File created C:\Program Files (x86)\HNENJB-DECRYPT.txt test.exe File created C:\Program Files (x86)\Microsoft SQL Server Compact Edition\v3.5\Desktop\7a0804237a0803c3116.lock test.exe File created C:\Program Files\HNENJB-DECRYPT.txt test.exe File opened for modification C:\Program Files\ConvertToCheckpoint.mp4 test.exe File opened for modification C:\Program Files\ReadJoin.mov test.exe File opened for modification C:\Program Files\StartAssert.xltx test.exe File opened for modification C:\Program Files\SwitchSync.doc test.exe File created C:\Program Files (x86)\Microsoft SQL Server Compact Edition\HNENJB-DECRYPT.txt test.exe File created C:\Program Files (x86)\Microsoft SQL Server Compact Edition\v3.5\HNENJB-DECRYPT.txt test.exe File created C:\Program Files\7a0804237a0803c3116.lock test.exe File opened for modification C:\Program Files\DisconnectExpand.ps1 test.exe File opened for modification C:\Program Files\MeasureSubmit.aifc test.exe File opened for modification C:\Program Files\ReadCheckpoint.TS test.exe File opened for modification C:\Program Files\ReadUnregister.mov test.exe File created C:\Program Files (x86)\Microsoft SQL Server Compact Edition\7a0804237a0803c3116.lock test.exe File created C:\Program Files (x86)\Microsoft SQL Server Compact Edition\v3.5\7a0804237a0803c3116.lock test.exe -
Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).
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System Location Discovery: System Language Discovery 1 TTPs 2 IoCs
Attempt gather information about the system language of a victim in order to infer the geographical location of that host.
description ioc Process Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language test.exe Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language wmic.exe -
Checks processor information in registry 2 TTPs 3 IoCs
Processor information is often read in order to detect sandboxing environments.
description ioc Process Key value queried \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\ProcessorNameString test.exe Key value queried \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\Identifier test.exe Key opened \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0 test.exe -
description ioc Process Key created \REGISTRY\MACHINE\SOFTWARE\Microsoft\SystemCertificates\ROOT\Certificates\CABD2A79A1076A31F21D253635CB039D4329A5E8 test.exe Set value (data) \REGISTRY\MACHINE\SOFTWARE\Microsoft\SystemCertificates\ROOT\Certificates\CABD2A79A1076A31F21D253635CB039D4329A5E8\Blob = 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 test.exe -
Suspicious behavior: EnumeratesProcesses 2 IoCs
pid Process 1724 test.exe 1724 test.exe -
Suspicious use of AdjustPrivilegeToken 43 IoCs
description pid Process Token: SeIncreaseQuotaPrivilege 1584 wmic.exe Token: SeSecurityPrivilege 1584 wmic.exe Token: SeTakeOwnershipPrivilege 1584 wmic.exe Token: SeLoadDriverPrivilege 1584 wmic.exe Token: SeSystemProfilePrivilege 1584 wmic.exe Token: SeSystemtimePrivilege 1584 wmic.exe Token: SeProfSingleProcessPrivilege 1584 wmic.exe Token: SeIncBasePriorityPrivilege 1584 wmic.exe Token: SeCreatePagefilePrivilege 1584 wmic.exe Token: SeBackupPrivilege 1584 wmic.exe Token: SeRestorePrivilege 1584 wmic.exe Token: SeShutdownPrivilege 1584 wmic.exe Token: SeDebugPrivilege 1584 wmic.exe Token: SeSystemEnvironmentPrivilege 1584 wmic.exe Token: SeRemoteShutdownPrivilege 1584 wmic.exe Token: SeUndockPrivilege 1584 wmic.exe Token: SeManageVolumePrivilege 1584 wmic.exe Token: 33 1584 wmic.exe Token: 34 1584 wmic.exe Token: 35 1584 wmic.exe Token: SeIncreaseQuotaPrivilege 1584 wmic.exe Token: SeSecurityPrivilege 1584 wmic.exe Token: SeTakeOwnershipPrivilege 1584 wmic.exe Token: SeLoadDriverPrivilege 1584 wmic.exe Token: SeSystemProfilePrivilege 1584 wmic.exe Token: SeSystemtimePrivilege 1584 wmic.exe Token: SeProfSingleProcessPrivilege 1584 wmic.exe Token: SeIncBasePriorityPrivilege 1584 wmic.exe Token: SeCreatePagefilePrivilege 1584 wmic.exe Token: SeBackupPrivilege 1584 wmic.exe Token: SeRestorePrivilege 1584 wmic.exe Token: SeShutdownPrivilege 1584 wmic.exe Token: SeDebugPrivilege 1584 wmic.exe Token: SeSystemEnvironmentPrivilege 1584 wmic.exe Token: SeRemoteShutdownPrivilege 1584 wmic.exe Token: SeUndockPrivilege 1584 wmic.exe Token: SeManageVolumePrivilege 1584 wmic.exe Token: 33 1584 wmic.exe Token: 34 1584 wmic.exe Token: 35 1584 wmic.exe Token: SeBackupPrivilege 1836 vssvc.exe Token: SeRestorePrivilege 1836 vssvc.exe Token: SeAuditPrivilege 1836 vssvc.exe -
Suspicious use of WriteProcessMemory 4 IoCs
description pid Process procid_target PID 1724 wrote to memory of 1584 1724 test.exe 31 PID 1724 wrote to memory of 1584 1724 test.exe 31 PID 1724 wrote to memory of 1584 1724 test.exe 31 PID 1724 wrote to memory of 1584 1724 test.exe 31 -
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\test.exe"C:\Users\Admin\AppData\Local\Temp\test.exe"1⤵
- Drops startup file
- Enumerates connected drives
- Sets desktop wallpaper using registry
- Drops file in Program Files directory
- System Location Discovery: System Language Discovery
- Checks processor information in registry
- Modifies system certificate store
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of WriteProcessMemory
PID:1724 -
C:\Windows\SysWOW64\wbem\wmic.exe"C:\Windows\system32\wbem\wmic.exe" shadowcopy delete2⤵
- System Location Discovery: System Language Discovery
- Suspicious use of AdjustPrivilegeToken
PID:1584
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C:\Windows\system32\vssvc.exeC:\Windows\system32\vssvc.exe1⤵
- Suspicious use of AdjustPrivilegeToken
PID:1836
Network
MITRE ATT&CK Enterprise v15
Defense Evasion
Indicator Removal
1File Deletion
1Modify Registry
2Subvert Trust Controls
1Install Root Certificate
1Credential Access
Credentials from Password Stores
2Credentials from Web Browsers
1Windows Credential Manager
1Unsecured Credentials
1Credentials In Files
1Replay Monitor
Loading Replay Monitor...
Downloads
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Filesize
8KB
MD5f0a825b874c9d057c1b72a9286377647
SHA1dfefadb95453adf66234e5375708bb70189ebfd7
SHA256792165f928cf9c7f723227b58a1310b892d83301b8585d6f1c3cc04e85fdf1ef
SHA51253a5dab395b7746ebbe0e9f0e18c3802b993498e35e2b6640ceb20b42a38758dc172151b3393d5b425a693fc7e5f6c6d90264ba62e346e06beb752a094834016