Analysis
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max time kernel
153s -
max time network
159s -
platform
windows7_x64 -
resource
win7-en-20211208 -
submitted
28-01-2022 18:10
Static task
static1
Behavioral task
behavioral1
Sample
d1a9e47c59b13160bf062ac7d2b2552655e0aef751c1d92258f591114e1a48bf.exe
Resource
win7-en-20211208
General
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Target
d1a9e47c59b13160bf062ac7d2b2552655e0aef751c1d92258f591114e1a48bf.exe
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Size
139KB
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MD5
4243cfc0166904e87b754593aeeb1fae
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SHA1
7c83213a3bc694c153b90244e5dca74beb4248fc
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SHA256
d1a9e47c59b13160bf062ac7d2b2552655e0aef751c1d92258f591114e1a48bf
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SHA512
a5d881417edb980303216a53ba056857ba766c7113590cb40ce9c8e7d31718cf04cbf977ec180a39439f71adf3b4797a73584ee86a595f1cc1cd3adac4491706
Malware Config
Extracted
C:\HBNYKAGY-DECRYPT.txt
http://gandcrabmfe6mnef.onion/4ed6267d18763c81
Signatures
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Gandcrab
Gandcrab is a Trojan horse that encrypts files on a computer.
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suricata: ET MALWARE [eSentire] Win32/GandCrab v4/5 Ransomware CnC Activity
suricata: ET MALWARE [eSentire] Win32/GandCrab v4/5 Ransomware CnC Activity
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Deletes shadow copies 2 TTPs
Ransomware often targets backup files to inhibit system recovery.
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Modifies extensions of user files 8 IoCs
Ransomware generally changes the extension on encrypted files.
Processes:
d1a9e47c59b13160bf062ac7d2b2552655e0aef751c1d92258f591114e1a48bf.exedescription ioc process File renamed C:\Users\Admin\Pictures\UnlockSubmit.png => C:\Users\Admin\Pictures\UnlockSubmit.png.hbnykagy d1a9e47c59b13160bf062ac7d2b2552655e0aef751c1d92258f591114e1a48bf.exe File renamed C:\Users\Admin\Pictures\HideConvert.tif => C:\Users\Admin\Pictures\HideConvert.tif.hbnykagy d1a9e47c59b13160bf062ac7d2b2552655e0aef751c1d92258f591114e1a48bf.exe File renamed C:\Users\Admin\Pictures\InstallRequest.png => C:\Users\Admin\Pictures\InstallRequest.png.hbnykagy d1a9e47c59b13160bf062ac7d2b2552655e0aef751c1d92258f591114e1a48bf.exe File renamed C:\Users\Admin\Pictures\MountDisable.crw => C:\Users\Admin\Pictures\MountDisable.crw.hbnykagy d1a9e47c59b13160bf062ac7d2b2552655e0aef751c1d92258f591114e1a48bf.exe File renamed C:\Users\Admin\Pictures\RepairTest.crw => C:\Users\Admin\Pictures\RepairTest.crw.hbnykagy d1a9e47c59b13160bf062ac7d2b2552655e0aef751c1d92258f591114e1a48bf.exe File opened for modification C:\Users\Admin\Pictures\SubmitLimit.tiff d1a9e47c59b13160bf062ac7d2b2552655e0aef751c1d92258f591114e1a48bf.exe File renamed C:\Users\Admin\Pictures\SubmitLimit.tiff => C:\Users\Admin\Pictures\SubmitLimit.tiff.hbnykagy d1a9e47c59b13160bf062ac7d2b2552655e0aef751c1d92258f591114e1a48bf.exe File renamed C:\Users\Admin\Pictures\SuspendSkip.tif => C:\Users\Admin\Pictures\SuspendSkip.tif.hbnykagy d1a9e47c59b13160bf062ac7d2b2552655e0aef751c1d92258f591114e1a48bf.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 24 IoCs
Attempts to read the root path of hard drives other than the default C: drive.
Processes:
d1a9e47c59b13160bf062ac7d2b2552655e0aef751c1d92258f591114e1a48bf.exedescription ioc process File opened (read-only) \??\I: d1a9e47c59b13160bf062ac7d2b2552655e0aef751c1d92258f591114e1a48bf.exe File opened (read-only) \??\L: d1a9e47c59b13160bf062ac7d2b2552655e0aef751c1d92258f591114e1a48bf.exe File opened (read-only) \??\N: d1a9e47c59b13160bf062ac7d2b2552655e0aef751c1d92258f591114e1a48bf.exe File opened (read-only) \??\Q: d1a9e47c59b13160bf062ac7d2b2552655e0aef751c1d92258f591114e1a48bf.exe File opened (read-only) \??\T: d1a9e47c59b13160bf062ac7d2b2552655e0aef751c1d92258f591114e1a48bf.exe File opened (read-only) \??\U: d1a9e47c59b13160bf062ac7d2b2552655e0aef751c1d92258f591114e1a48bf.exe File opened (read-only) \??\E: d1a9e47c59b13160bf062ac7d2b2552655e0aef751c1d92258f591114e1a48bf.exe File opened (read-only) \??\G: d1a9e47c59b13160bf062ac7d2b2552655e0aef751c1d92258f591114e1a48bf.exe File opened (read-only) \??\Y: d1a9e47c59b13160bf062ac7d2b2552655e0aef751c1d92258f591114e1a48bf.exe File opened (read-only) \??\V: d1a9e47c59b13160bf062ac7d2b2552655e0aef751c1d92258f591114e1a48bf.exe File opened (read-only) \??\Z: d1a9e47c59b13160bf062ac7d2b2552655e0aef751c1d92258f591114e1a48bf.exe File opened (read-only) \??\B: d1a9e47c59b13160bf062ac7d2b2552655e0aef751c1d92258f591114e1a48bf.exe File opened (read-only) \??\J: d1a9e47c59b13160bf062ac7d2b2552655e0aef751c1d92258f591114e1a48bf.exe File opened (read-only) \??\M: d1a9e47c59b13160bf062ac7d2b2552655e0aef751c1d92258f591114e1a48bf.exe File opened (read-only) \??\O: d1a9e47c59b13160bf062ac7d2b2552655e0aef751c1d92258f591114e1a48bf.exe File opened (read-only) \??\P: d1a9e47c59b13160bf062ac7d2b2552655e0aef751c1d92258f591114e1a48bf.exe File opened (read-only) \??\S: d1a9e47c59b13160bf062ac7d2b2552655e0aef751c1d92258f591114e1a48bf.exe File opened (read-only) \??\W: d1a9e47c59b13160bf062ac7d2b2552655e0aef751c1d92258f591114e1a48bf.exe File opened (read-only) \??\X: d1a9e47c59b13160bf062ac7d2b2552655e0aef751c1d92258f591114e1a48bf.exe File opened (read-only) \??\A: d1a9e47c59b13160bf062ac7d2b2552655e0aef751c1d92258f591114e1a48bf.exe File opened (read-only) \??\K: d1a9e47c59b13160bf062ac7d2b2552655e0aef751c1d92258f591114e1a48bf.exe File opened (read-only) \??\R: d1a9e47c59b13160bf062ac7d2b2552655e0aef751c1d92258f591114e1a48bf.exe File opened (read-only) \??\F: d1a9e47c59b13160bf062ac7d2b2552655e0aef751c1d92258f591114e1a48bf.exe File opened (read-only) \??\H: d1a9e47c59b13160bf062ac7d2b2552655e0aef751c1d92258f591114e1a48bf.exe -
Sets desktop wallpaper using registry 2 TTPs 1 IoCs
Processes:
d1a9e47c59b13160bf062ac7d2b2552655e0aef751c1d92258f591114e1a48bf.exedescription ioc process Set value (str) \REGISTRY\USER\S-1-5-21-3846991908-3261386348-1409841751-1000\Control Panel\Desktop\Wallpaper = "C:\\Users\\Admin\\AppData\\Local\\Temp\\\\pidor.bmp" d1a9e47c59b13160bf062ac7d2b2552655e0aef751c1d92258f591114e1a48bf.exe -
Drops file in Program Files directory 26 IoCs
Processes:
d1a9e47c59b13160bf062ac7d2b2552655e0aef751c1d92258f591114e1a48bf.exedescription ioc process File opened for modification C:\Program Files\GrantConfirm.WTV d1a9e47c59b13160bf062ac7d2b2552655e0aef751c1d92258f591114e1a48bf.exe File opened for modification C:\Program Files\InvokeUninstall.zip d1a9e47c59b13160bf062ac7d2b2552655e0aef751c1d92258f591114e1a48bf.exe File opened for modification C:\Program Files\RevokeSearch.xps d1a9e47c59b13160bf062ac7d2b2552655e0aef751c1d92258f591114e1a48bf.exe File created C:\Program Files (x86)\Microsoft SQL Server Compact Edition\HBNYKAGY-DECRYPT.txt d1a9e47c59b13160bf062ac7d2b2552655e0aef751c1d92258f591114e1a48bf.exe File opened for modification C:\Program Files\DisconnectGet.wmf d1a9e47c59b13160bf062ac7d2b2552655e0aef751c1d92258f591114e1a48bf.exe File opened for modification C:\Program Files\SendStart.wax d1a9e47c59b13160bf062ac7d2b2552655e0aef751c1d92258f591114e1a48bf.exe File created C:\Program Files (x86)\HBNYKAGY-DECRYPT.txt d1a9e47c59b13160bf062ac7d2b2552655e0aef751c1d92258f591114e1a48bf.exe File created C:\Program Files (x86)\Microsoft SQL Server Compact Edition\18763b6218763c86214.lock d1a9e47c59b13160bf062ac7d2b2552655e0aef751c1d92258f591114e1a48bf.exe File created C:\Program Files (x86)\Microsoft SQL Server Compact Edition\v3.5\Desktop\18763b6218763c86214.lock d1a9e47c59b13160bf062ac7d2b2552655e0aef751c1d92258f591114e1a48bf.exe File created C:\Program Files\HBNYKAGY-DECRYPT.txt d1a9e47c59b13160bf062ac7d2b2552655e0aef751c1d92258f591114e1a48bf.exe File opened for modification C:\Program Files\ClearProtect.hta d1a9e47c59b13160bf062ac7d2b2552655e0aef751c1d92258f591114e1a48bf.exe File opened for modification C:\Program Files\ClearTest.wax d1a9e47c59b13160bf062ac7d2b2552655e0aef751c1d92258f591114e1a48bf.exe File opened for modification C:\Program Files\CompressEdit.sql d1a9e47c59b13160bf062ac7d2b2552655e0aef751c1d92258f591114e1a48bf.exe File opened for modification C:\Program Files\EditOpen.mp4v d1a9e47c59b13160bf062ac7d2b2552655e0aef751c1d92258f591114e1a48bf.exe File opened for modification C:\Program Files\ShowExit.pps d1a9e47c59b13160bf062ac7d2b2552655e0aef751c1d92258f591114e1a48bf.exe File opened for modification C:\Program Files\StartDismount.ini d1a9e47c59b13160bf062ac7d2b2552655e0aef751c1d92258f591114e1a48bf.exe File opened for modification C:\Program Files\WaitInvoke.pcx d1a9e47c59b13160bf062ac7d2b2552655e0aef751c1d92258f591114e1a48bf.exe File created C:\Program Files (x86)\Microsoft SQL Server Compact Edition\v3.5\HBNYKAGY-DECRYPT.txt d1a9e47c59b13160bf062ac7d2b2552655e0aef751c1d92258f591114e1a48bf.exe File created C:\Program Files (x86)\Microsoft SQL Server Compact Edition\v3.5\Desktop\HBNYKAGY-DECRYPT.txt d1a9e47c59b13160bf062ac7d2b2552655e0aef751c1d92258f591114e1a48bf.exe File created C:\Program Files\18763b6218763c86214.lock d1a9e47c59b13160bf062ac7d2b2552655e0aef751c1d92258f591114e1a48bf.exe File opened for modification C:\Program Files\FindSuspend.wmf d1a9e47c59b13160bf062ac7d2b2552655e0aef751c1d92258f591114e1a48bf.exe File opened for modification C:\Program Files\SubmitBackup.3gp2 d1a9e47c59b13160bf062ac7d2b2552655e0aef751c1d92258f591114e1a48bf.exe File opened for modification C:\Program Files\SubmitShow.wax d1a9e47c59b13160bf062ac7d2b2552655e0aef751c1d92258f591114e1a48bf.exe File opened for modification C:\Program Files\UnprotectStart.aiff d1a9e47c59b13160bf062ac7d2b2552655e0aef751c1d92258f591114e1a48bf.exe File created C:\Program Files (x86)\18763b6218763c86214.lock d1a9e47c59b13160bf062ac7d2b2552655e0aef751c1d92258f591114e1a48bf.exe File created C:\Program Files (x86)\Microsoft SQL Server Compact Edition\v3.5\18763b6218763c86214.lock d1a9e47c59b13160bf062ac7d2b2552655e0aef751c1d92258f591114e1a48bf.exe -
Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s). Likely ransomware behaviour.
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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:
d1a9e47c59b13160bf062ac7d2b2552655e0aef751c1d92258f591114e1a48bf.exedescription ioc process Key opened \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0 d1a9e47c59b13160bf062ac7d2b2552655e0aef751c1d92258f591114e1a48bf.exe Key value queried \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\ProcessorNameString d1a9e47c59b13160bf062ac7d2b2552655e0aef751c1d92258f591114e1a48bf.exe Key value queried \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\Identifier d1a9e47c59b13160bf062ac7d2b2552655e0aef751c1d92258f591114e1a48bf.exe -
Suspicious behavior: EnumeratesProcesses 2 IoCs
Processes:
d1a9e47c59b13160bf062ac7d2b2552655e0aef751c1d92258f591114e1a48bf.exepid process 1744 d1a9e47c59b13160bf062ac7d2b2552655e0aef751c1d92258f591114e1a48bf.exe 1744 d1a9e47c59b13160bf062ac7d2b2552655e0aef751c1d92258f591114e1a48bf.exe -
Suspicious use of AdjustPrivilegeToken 43 IoCs
Processes:
wmic.exevssvc.exedescription pid process Token: SeIncreaseQuotaPrivilege 1052 wmic.exe Token: SeSecurityPrivilege 1052 wmic.exe Token: SeTakeOwnershipPrivilege 1052 wmic.exe Token: SeLoadDriverPrivilege 1052 wmic.exe Token: SeSystemProfilePrivilege 1052 wmic.exe Token: SeSystemtimePrivilege 1052 wmic.exe Token: SeProfSingleProcessPrivilege 1052 wmic.exe Token: SeIncBasePriorityPrivilege 1052 wmic.exe Token: SeCreatePagefilePrivilege 1052 wmic.exe Token: SeBackupPrivilege 1052 wmic.exe Token: SeRestorePrivilege 1052 wmic.exe Token: SeShutdownPrivilege 1052 wmic.exe Token: SeDebugPrivilege 1052 wmic.exe Token: SeSystemEnvironmentPrivilege 1052 wmic.exe Token: SeRemoteShutdownPrivilege 1052 wmic.exe Token: SeUndockPrivilege 1052 wmic.exe Token: SeManageVolumePrivilege 1052 wmic.exe Token: 33 1052 wmic.exe Token: 34 1052 wmic.exe Token: 35 1052 wmic.exe Token: SeIncreaseQuotaPrivilege 1052 wmic.exe Token: SeSecurityPrivilege 1052 wmic.exe Token: SeTakeOwnershipPrivilege 1052 wmic.exe Token: SeLoadDriverPrivilege 1052 wmic.exe Token: SeSystemProfilePrivilege 1052 wmic.exe Token: SeSystemtimePrivilege 1052 wmic.exe Token: SeProfSingleProcessPrivilege 1052 wmic.exe Token: SeIncBasePriorityPrivilege 1052 wmic.exe Token: SeCreatePagefilePrivilege 1052 wmic.exe Token: SeBackupPrivilege 1052 wmic.exe Token: SeRestorePrivilege 1052 wmic.exe Token: SeShutdownPrivilege 1052 wmic.exe Token: SeDebugPrivilege 1052 wmic.exe Token: SeSystemEnvironmentPrivilege 1052 wmic.exe Token: SeRemoteShutdownPrivilege 1052 wmic.exe Token: SeUndockPrivilege 1052 wmic.exe Token: SeManageVolumePrivilege 1052 wmic.exe Token: 33 1052 wmic.exe Token: 34 1052 wmic.exe Token: 35 1052 wmic.exe Token: SeBackupPrivilege 2044 vssvc.exe Token: SeRestorePrivilege 2044 vssvc.exe Token: SeAuditPrivilege 2044 vssvc.exe -
Suspicious use of WriteProcessMemory 4 IoCs
Processes:
d1a9e47c59b13160bf062ac7d2b2552655e0aef751c1d92258f591114e1a48bf.exedescription pid process target process PID 1744 wrote to memory of 1052 1744 d1a9e47c59b13160bf062ac7d2b2552655e0aef751c1d92258f591114e1a48bf.exe wmic.exe PID 1744 wrote to memory of 1052 1744 d1a9e47c59b13160bf062ac7d2b2552655e0aef751c1d92258f591114e1a48bf.exe wmic.exe PID 1744 wrote to memory of 1052 1744 d1a9e47c59b13160bf062ac7d2b2552655e0aef751c1d92258f591114e1a48bf.exe wmic.exe PID 1744 wrote to memory of 1052 1744 d1a9e47c59b13160bf062ac7d2b2552655e0aef751c1d92258f591114e1a48bf.exe wmic.exe
Processes
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C:\Users\Admin\AppData\Local\Temp\d1a9e47c59b13160bf062ac7d2b2552655e0aef751c1d92258f591114e1a48bf.exe"C:\Users\Admin\AppData\Local\Temp\d1a9e47c59b13160bf062ac7d2b2552655e0aef751c1d92258f591114e1a48bf.exe"1⤵
- Modifies extensions of user files
- 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 v6
Replay Monitor
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Downloads
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memory/1744-54-0x0000000075761000-0x0000000075763000-memory.dmpFilesize
8KB