Analysis
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max time kernel
147s -
max time network
156s -
platform
windows10_x64 -
resource
win10-en-20211208 -
submitted
24-01-2022 01:02
Static task
static1
Behavioral task
behavioral1
Sample
cd13042decd9fdee2d5826132fedbd0954087649288b6f76a84200d3d0905548.exe
Resource
win7-en-20211208
Behavioral task
behavioral2
Sample
cd13042decd9fdee2d5826132fedbd0954087649288b6f76a84200d3d0905548.exe
Resource
win10-en-20211208
General
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Target
cd13042decd9fdee2d5826132fedbd0954087649288b6f76a84200d3d0905548.exe
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Size
207KB
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MD5
c0fecdafb51361897b96db9e291d97bc
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SHA1
14a565d9ec909f8fed5678dd2c4b2e3ea51e7800
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SHA256
cd13042decd9fdee2d5826132fedbd0954087649288b6f76a84200d3d0905548
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SHA512
0a4a9819f9373e1c566fdad74ad9c55dc3e2ba31030b31cb25ac21c9fb4432093a636773ac26c11ee313f2ba7af61872f29c4716c9e66c4d61767912a65aef3c
Malware Config
Extracted
C:\f53ybisi1-readme.txt
sodinokibi
http://aplebzu47wgazapdqks6vrcv6zcnjppkbxbr6wketf56nf6aq2nmyoyd.onion/F3B75765AD826F92
http://decryptor.top/F3B75765AD826F92
Signatures
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Sodin,Sodinokibi,REvil
Ransomware with advanced anti-analysis and privilege escalation functionality.
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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 4 IoCs
Ransomware generally changes the extension on encrypted files.
Processes:
cd13042decd9fdee2d5826132fedbd0954087649288b6f76a84200d3d0905548.exedescription ioc process File renamed C:\Users\Admin\Pictures\ExportComplete.raw => \??\c:\users\admin\pictures\ExportComplete.raw.f53ybisi1 cd13042decd9fdee2d5826132fedbd0954087649288b6f76a84200d3d0905548.exe File renamed C:\Users\Admin\Pictures\MountComplete.tif => \??\c:\users\admin\pictures\MountComplete.tif.f53ybisi1 cd13042decd9fdee2d5826132fedbd0954087649288b6f76a84200d3d0905548.exe File renamed C:\Users\Admin\Pictures\UnblockConvert.crw => \??\c:\users\admin\pictures\UnblockConvert.crw.f53ybisi1 cd13042decd9fdee2d5826132fedbd0954087649288b6f76a84200d3d0905548.exe File renamed C:\Users\Admin\Pictures\UseRedo.crw => \??\c:\users\admin\pictures\UseRedo.crw.f53ybisi1 cd13042decd9fdee2d5826132fedbd0954087649288b6f76a84200d3d0905548.exe -
Drops desktop.ini file(s) 26 IoCs
Processes:
cd13042decd9fdee2d5826132fedbd0954087649288b6f76a84200d3d0905548.exedescription ioc process File opened for modification \??\c:\users\admin\music\desktop.ini cd13042decd9fdee2d5826132fedbd0954087649288b6f76a84200d3d0905548.exe File opened for modification \??\c:\users\admin\pictures\desktop.ini cd13042decd9fdee2d5826132fedbd0954087649288b6f76a84200d3d0905548.exe File opened for modification \??\c:\users\admin\videos\desktop.ini cd13042decd9fdee2d5826132fedbd0954087649288b6f76a84200d3d0905548.exe File opened for modification \??\c:\users\public\music\desktop.ini cd13042decd9fdee2d5826132fedbd0954087649288b6f76a84200d3d0905548.exe File opened for modification \??\c:\users\public\videos\desktop.ini cd13042decd9fdee2d5826132fedbd0954087649288b6f76a84200d3d0905548.exe File opened for modification \??\c:\users\admin\favorites\links\desktop.ini cd13042decd9fdee2d5826132fedbd0954087649288b6f76a84200d3d0905548.exe File opened for modification \??\c:\users\public\desktop.ini cd13042decd9fdee2d5826132fedbd0954087649288b6f76a84200d3d0905548.exe File opened for modification \??\c:\users\admin\documents\desktop.ini cd13042decd9fdee2d5826132fedbd0954087649288b6f76a84200d3d0905548.exe File opened for modification \??\c:\users\admin\downloads\desktop.ini cd13042decd9fdee2d5826132fedbd0954087649288b6f76a84200d3d0905548.exe File opened for modification \??\c:\users\admin\saved games\desktop.ini cd13042decd9fdee2d5826132fedbd0954087649288b6f76a84200d3d0905548.exe File opened for modification \??\c:\users\public\desktop\desktop.ini cd13042decd9fdee2d5826132fedbd0954087649288b6f76a84200d3d0905548.exe File opened for modification \??\c:\users\public\downloads\desktop.ini cd13042decd9fdee2d5826132fedbd0954087649288b6f76a84200d3d0905548.exe File opened for modification \??\c:\users\public\documents\desktop.ini cd13042decd9fdee2d5826132fedbd0954087649288b6f76a84200d3d0905548.exe File opened for modification \??\c:\program files\desktop.ini cd13042decd9fdee2d5826132fedbd0954087649288b6f76a84200d3d0905548.exe File opened for modification \??\c:\users\admin\contacts\desktop.ini cd13042decd9fdee2d5826132fedbd0954087649288b6f76a84200d3d0905548.exe File opened for modification \??\c:\users\admin\desktop\desktop.ini cd13042decd9fdee2d5826132fedbd0954087649288b6f76a84200d3d0905548.exe File opened for modification \??\c:\users\admin\favorites\desktop.ini cd13042decd9fdee2d5826132fedbd0954087649288b6f76a84200d3d0905548.exe File opened for modification \??\c:\users\admin\onedrive\desktop.ini cd13042decd9fdee2d5826132fedbd0954087649288b6f76a84200d3d0905548.exe File opened for modification \??\c:\users\admin\searches\desktop.ini cd13042decd9fdee2d5826132fedbd0954087649288b6f76a84200d3d0905548.exe File opened for modification \??\c:\users\public\accountpictures\desktop.ini cd13042decd9fdee2d5826132fedbd0954087649288b6f76a84200d3d0905548.exe File opened for modification \??\c:\users\public\libraries\desktop.ini cd13042decd9fdee2d5826132fedbd0954087649288b6f76a84200d3d0905548.exe File opened for modification \??\c:\users\public\pictures\desktop.ini cd13042decd9fdee2d5826132fedbd0954087649288b6f76a84200d3d0905548.exe File opened for modification \??\c:\program files (x86)\desktop.ini cd13042decd9fdee2d5826132fedbd0954087649288b6f76a84200d3d0905548.exe File opened for modification \??\c:\users\admin\links\desktop.ini cd13042decd9fdee2d5826132fedbd0954087649288b6f76a84200d3d0905548.exe File opened for modification \??\c:\users\admin\pictures\camera roll\desktop.ini cd13042decd9fdee2d5826132fedbd0954087649288b6f76a84200d3d0905548.exe File opened for modification \??\c:\users\admin\pictures\saved pictures\desktop.ini cd13042decd9fdee2d5826132fedbd0954087649288b6f76a84200d3d0905548.exe -
Enumerates connected drives 3 TTPs 25 IoCs
Attempts to read the root path of hard drives other than the default C: drive.
Processes:
cd13042decd9fdee2d5826132fedbd0954087649288b6f76a84200d3d0905548.exedescription ioc process File opened (read-only) \??\I: cd13042decd9fdee2d5826132fedbd0954087649288b6f76a84200d3d0905548.exe File opened (read-only) \??\K: cd13042decd9fdee2d5826132fedbd0954087649288b6f76a84200d3d0905548.exe File opened (read-only) \??\M: cd13042decd9fdee2d5826132fedbd0954087649288b6f76a84200d3d0905548.exe File opened (read-only) \??\N: cd13042decd9fdee2d5826132fedbd0954087649288b6f76a84200d3d0905548.exe File opened (read-only) \??\P: cd13042decd9fdee2d5826132fedbd0954087649288b6f76a84200d3d0905548.exe File opened (read-only) \??\Q: cd13042decd9fdee2d5826132fedbd0954087649288b6f76a84200d3d0905548.exe File opened (read-only) \??\R: cd13042decd9fdee2d5826132fedbd0954087649288b6f76a84200d3d0905548.exe File opened (read-only) \??\S: cd13042decd9fdee2d5826132fedbd0954087649288b6f76a84200d3d0905548.exe File opened (read-only) \??\Z: cd13042decd9fdee2d5826132fedbd0954087649288b6f76a84200d3d0905548.exe File opened (read-only) \??\A: cd13042decd9fdee2d5826132fedbd0954087649288b6f76a84200d3d0905548.exe File opened (read-only) \??\B: cd13042decd9fdee2d5826132fedbd0954087649288b6f76a84200d3d0905548.exe File opened (read-only) \??\F: cd13042decd9fdee2d5826132fedbd0954087649288b6f76a84200d3d0905548.exe File opened (read-only) \??\G: cd13042decd9fdee2d5826132fedbd0954087649288b6f76a84200d3d0905548.exe File opened (read-only) \??\H: cd13042decd9fdee2d5826132fedbd0954087649288b6f76a84200d3d0905548.exe File opened (read-only) \??\J: cd13042decd9fdee2d5826132fedbd0954087649288b6f76a84200d3d0905548.exe File opened (read-only) \??\L: cd13042decd9fdee2d5826132fedbd0954087649288b6f76a84200d3d0905548.exe File opened (read-only) \??\T: cd13042decd9fdee2d5826132fedbd0954087649288b6f76a84200d3d0905548.exe File opened (read-only) \??\V: cd13042decd9fdee2d5826132fedbd0954087649288b6f76a84200d3d0905548.exe File opened (read-only) \??\X: cd13042decd9fdee2d5826132fedbd0954087649288b6f76a84200d3d0905548.exe File opened (read-only) \??\O: cd13042decd9fdee2d5826132fedbd0954087649288b6f76a84200d3d0905548.exe File opened (read-only) \??\U: cd13042decd9fdee2d5826132fedbd0954087649288b6f76a84200d3d0905548.exe File opened (read-only) \??\D: cd13042decd9fdee2d5826132fedbd0954087649288b6f76a84200d3d0905548.exe File opened (read-only) \??\E: cd13042decd9fdee2d5826132fedbd0954087649288b6f76a84200d3d0905548.exe File opened (read-only) \??\W: cd13042decd9fdee2d5826132fedbd0954087649288b6f76a84200d3d0905548.exe File opened (read-only) \??\Y: cd13042decd9fdee2d5826132fedbd0954087649288b6f76a84200d3d0905548.exe -
Sets desktop wallpaper using registry 2 TTPs 1 IoCs
Processes:
cd13042decd9fdee2d5826132fedbd0954087649288b6f76a84200d3d0905548.exedescription ioc process Set value (str) \REGISTRY\USER\S-1-5-21-2361464256-2201551969-2316606395-1000\Control Panel\Desktop\Wallpaper = "C:\\Users\\Admin\\AppData\\Local\\Temp\\bnoouzkn1.bmp" cd13042decd9fdee2d5826132fedbd0954087649288b6f76a84200d3d0905548.exe -
Drops file in Program Files directory 19 IoCs
Processes:
cd13042decd9fdee2d5826132fedbd0954087649288b6f76a84200d3d0905548.exedescription ioc process File created \??\c:\program files (x86)\f53ybisi1-readme.txt cd13042decd9fdee2d5826132fedbd0954087649288b6f76a84200d3d0905548.exe File opened for modification \??\c:\program files\InitializeSubmit.emz cd13042decd9fdee2d5826132fedbd0954087649288b6f76a84200d3d0905548.exe File opened for modification \??\c:\program files\RenameAdd.kix cd13042decd9fdee2d5826132fedbd0954087649288b6f76a84200d3d0905548.exe File opened for modification \??\c:\program files\AddSubmit.asx cd13042decd9fdee2d5826132fedbd0954087649288b6f76a84200d3d0905548.exe File opened for modification \??\c:\program files\CopyOut.mov cd13042decd9fdee2d5826132fedbd0954087649288b6f76a84200d3d0905548.exe File opened for modification \??\c:\program files\desktop.ini cd13042decd9fdee2d5826132fedbd0954087649288b6f76a84200d3d0905548.exe File opened for modification \??\c:\program files\ResetRedo.m4a cd13042decd9fdee2d5826132fedbd0954087649288b6f76a84200d3d0905548.exe File opened for modification \??\c:\program files\WritePing.dot cd13042decd9fdee2d5826132fedbd0954087649288b6f76a84200d3d0905548.exe File opened for modification \??\c:\program files (x86)\desktop.ini cd13042decd9fdee2d5826132fedbd0954087649288b6f76a84200d3d0905548.exe File opened for modification \??\c:\program files\ProtectSelect.vssm cd13042decd9fdee2d5826132fedbd0954087649288b6f76a84200d3d0905548.exe File opened for modification \??\c:\program files\RenameSubmit.tif cd13042decd9fdee2d5826132fedbd0954087649288b6f76a84200d3d0905548.exe File opened for modification \??\c:\program files\ResolveResize.mpeg2 cd13042decd9fdee2d5826132fedbd0954087649288b6f76a84200d3d0905548.exe File opened for modification \??\c:\program files\TestComplete.jfif cd13042decd9fdee2d5826132fedbd0954087649288b6f76a84200d3d0905548.exe File opened for modification \??\c:\program files\UpdateMeasure.tif cd13042decd9fdee2d5826132fedbd0954087649288b6f76a84200d3d0905548.exe File created \??\c:\program files\f53ybisi1-readme.txt cd13042decd9fdee2d5826132fedbd0954087649288b6f76a84200d3d0905548.exe File opened for modification \??\c:\program files\CompressRestart.asf cd13042decd9fdee2d5826132fedbd0954087649288b6f76a84200d3d0905548.exe File opened for modification \??\c:\program files\LimitDebug.xltx cd13042decd9fdee2d5826132fedbd0954087649288b6f76a84200d3d0905548.exe File opened for modification \??\c:\program files\RequestUnregister.wax cd13042decd9fdee2d5826132fedbd0954087649288b6f76a84200d3d0905548.exe File opened for modification \??\c:\program files\RestoreClear.php cd13042decd9fdee2d5826132fedbd0954087649288b6f76a84200d3d0905548.exe -
Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s). Likely ransomware behaviour.
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Interacts with shadow copies 2 TTPs 1 IoCs
Shadow copies are often targeted by ransomware to inhibit system recovery.
Processes:
vssadmin.exepid process 388 vssadmin.exe -
Suspicious behavior: EnumeratesProcesses 2 IoCs
Processes:
cd13042decd9fdee2d5826132fedbd0954087649288b6f76a84200d3d0905548.exepid process 2200 cd13042decd9fdee2d5826132fedbd0954087649288b6f76a84200d3d0905548.exe 2200 cd13042decd9fdee2d5826132fedbd0954087649288b6f76a84200d3d0905548.exe -
Suspicious use of AdjustPrivilegeToken 3 IoCs
Processes:
vssvc.exedescription pid process Token: SeBackupPrivilege 980 vssvc.exe Token: SeRestorePrivilege 980 vssvc.exe Token: SeAuditPrivilege 980 vssvc.exe -
Suspicious use of WriteProcessMemory 6 IoCs
Processes:
cd13042decd9fdee2d5826132fedbd0954087649288b6f76a84200d3d0905548.execmd.exedescription pid process target process PID 2200 wrote to memory of 1432 2200 cd13042decd9fdee2d5826132fedbd0954087649288b6f76a84200d3d0905548.exe cmd.exe PID 2200 wrote to memory of 1432 2200 cd13042decd9fdee2d5826132fedbd0954087649288b6f76a84200d3d0905548.exe cmd.exe PID 2200 wrote to memory of 1432 2200 cd13042decd9fdee2d5826132fedbd0954087649288b6f76a84200d3d0905548.exe cmd.exe PID 1432 wrote to memory of 388 1432 cmd.exe vssadmin.exe PID 1432 wrote to memory of 388 1432 cmd.exe vssadmin.exe PID 1432 wrote to memory of 388 1432 cmd.exe vssadmin.exe
Processes
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C:\Users\Admin\AppData\Local\Temp\cd13042decd9fdee2d5826132fedbd0954087649288b6f76a84200d3d0905548.exe"C:\Users\Admin\AppData\Local\Temp\cd13042decd9fdee2d5826132fedbd0954087649288b6f76a84200d3d0905548.exe"1⤵
- Modifies extensions of user files
- Drops desktop.ini file(s)
- Enumerates connected drives
- Sets desktop wallpaper using registry
- Drops file in Program Files directory
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of WriteProcessMemory
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C:\Windows\SysWOW64\cmd.exe"C:\Windows\System32\cmd.exe" /c vssadmin.exe Delete Shadows /All /Quiet & bcdedit /set {default} recoveryenabled No & bcdedit /set {default} bootstatuspolicy ignoreallfailures2⤵
- Suspicious use of WriteProcessMemory
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C:\Windows\SysWOW64\vssadmin.exevssadmin.exe Delete Shadows /All /Quiet3⤵
- Interacts with shadow copies
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C:\Windows\system32\wbem\unsecapp.exeC:\Windows\system32\wbem\unsecapp.exe -Embedding1⤵
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C:\Windows\system32\vssvc.exeC:\Windows\system32\vssvc.exe1⤵
- Suspicious use of AdjustPrivilegeToken