sodinokibi | 035fdade08c77250a80b6f9c7bb3dc699c7da60db14fb012388b55f27fc298ac

General

Target

solara/solara.dll
Size

164KB
MD5

6e3efb83299d800edf1624ecbc0665e7
SHA1

0bd22f204c5373f1a22d9a02c59f69f354a2cc0d
SHA256

2ca64feaaf5ab6cf96677fbc2bc0e1995b3bc93472d7af884139aa757240e3f6
SHA512

dd1675bb15eb8ea2933b25413271117823ad7ff38280e7f552b5201e3a5bef8607a2112df2e24f598449ebfdb570ff9458aba0314ed8819dd4d774ea855e9ad2
SSDEEP

3072:FWeI5JXJRGpUhFiWjmfb+HP+rnRfU9ECs5p:FWe29/GuzjmfCHWtUiCs5p

Score

10^/10

sodinokibi discovery ransomware

Malware Config

Extracted

Path

C:\Program Files (x86)\ryg6t1-readme.txt

Family

sodinokibi

Ransom Note

---=== Welcome. Again. ===--- [+] Whats Happen? [+] Your files are encrypted, and currently unavailable. You can check it: all files on your computer has extension ryg6t1. 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 practise - 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/20B78BB47602048C 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.top/20B78BB47602048C 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: qEapZKb1MEANujDTaDlKe10qxyfoJQVjhCD7zFalaBwibs2EDDtmF+MEddO/3FOQ dkagkiHSQByAGIVILrm4ay0fQlRSk94AWZoFRjcBcgQTeOVw0IB+x4kna0JSJy3J jYDR3Ru5vEBQLzS0bpBr7MgMDeY1Jq7O1i0gX+nMPbNkXxYvmbU+ix4oEfWMcDrF QtDYNwPH/nzkhvcThWCm39yeRPQ/lyB/4Er0mJfpK5X00t/NKaTqGXBcAoTL7/nk FhMuibJkKjuoPxb8naY517Cm3sqEyO8D8PkRloqEAe/enIGN3BU0YWOSj7GlE3jB 9g4bZg4mJSNBLXofvJXp6JFVsEl7tR4gX5QVBX8ygJ69e6Y3QJi/KfuRAH30Lmnm iRSdlhkHlxj0+buQo4lN+2eyB0PdAQ13Pflo/PbYtA9qqp5YIJG5QW/8OJr/g+i0 Mbo+t1OGFAjgTEl20SQHuc3NPUY+mXtIBp3xVAsKtUgZxs4XpEsI1e5yYtPHhv87 TaAa+8qI4ESPPlfgtccpClkMAr4szceifw89iSW9bzzEslJhvelGUaME3Cyg+tpu vuovZ0rQBVkqXV8ohLarYrScLHEfvpxEi2lRou+S/eSVAtOTBzG4T+4eUE91/+jI 4tBnJW4upTj8sXQZ2pbCBvhxl3efySGDGGJHATwyJi6uyCBFlOx8+20S74ImYx5F ev4dGWlpPJWWJqJ/NAhWlMFf5dt7EiHJhuoTn625ia4X7WzyujOg5+BTSmaD9gAE dakuh+OCSHZ6neBmFSEUxovMWK0iK4fhA20SjUbmhNJlMJ5v0P6mKgrDnL3SVoA5 4awUDLoNABEgckt55SE5r4CU8p7eJqMLNVebnqzgg0oJEshxLJZILMwZPKxhDaVp hhaaJvSoUikQrZuPRORJK7rVujpbVLXgEObAA7Odii8lCOwG3aAx8Kl/vBKA94xv gMOh8RtBkUwDUNMxY5kIF+A5wfG5TLmdd3OEmTu6qaweGkR5YOjDmqOPo9tdNHDN 9AySSWKqTquVFMkP523t5Rwk0PqkexHVz/96UKGTXxFCqHLUWKiUyRib1A2VrtN2 ZuEaiEvvWt+A2fxmUoqpndWcEP3ehxT/hFyVgP9cpJGhhQJ6Yj6+NUdazja5YxS8 dBLMYfAmzm5pGeYIUsGoKEsyWUociX5vpWpUgm0A0kFrEMvNB6B4tE8a6qM8RGv0 HHYP/aZ+dvhMlQ7C0d1nece/ Extension name: ryg6t1 ----------------------------------------------------------------------------------------- !!! DANGER !!! DONT try to change files by yourself, DONT use any third party software for restoring your data or antivirus solutions - its may entail damge 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/20B78BB47602048C

http://decryptor.top/20B78BB47602048C

Signatures

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

Enumerates connected drives 3 TTPs 25 IoCs

Attempts to read the root path of hard drives other than the default C: drive.

Query Registry

T1012

Peripheral Device Discovery

T1120

System Information Discovery

T1082

description	ioc	Process
File opened (read-only)	\??\T:	rundll32.exe
File opened (read-only)	\??\X:	rundll32.exe
File opened (read-only)	\??\Y:	rundll32.exe
File opened (read-only)	\??\K:	rundll32.exe
File opened (read-only)	\??\M:	rundll32.exe
File opened (read-only)	\??\R:	rundll32.exe
File opened (read-only)	\??\L:	rundll32.exe
File opened (read-only)	\??\O:	rundll32.exe
File opened (read-only)	\??\Q:	rundll32.exe
File opened (read-only)	\??\S:	rundll32.exe
File opened (read-only)	\??\A:	rundll32.exe
File opened (read-only)	\??\E:	rundll32.exe
File opened (read-only)	\??\H:	rundll32.exe
File opened (read-only)	\??\U:	rundll32.exe
File opened (read-only)	\??\F:	rundll32.exe
File opened (read-only)	\??\B:	rundll32.exe
File opened (read-only)	\??\I:	rundll32.exe
File opened (read-only)	\??\N:	rundll32.exe
File opened (read-only)	\??\V:	rundll32.exe
File opened (read-only)	\??\W:	rundll32.exe
File opened (read-only)	\??\Z:	rundll32.exe
File opened (read-only)	\??\D:	rundll32.exe
File opened (read-only)	\??\G:	rundll32.exe
File opened (read-only)	\??\J:	rundll32.exe
File opened (read-only)	\??\P:	rundll32.exe

Drops file in Program Files directory 26 IoCs

description	ioc	Process
File opened for modification	\??\c:\program files\FormatCheckpoint.wm	rundll32.exe
File opened for modification	\??\c:\program files\LockMerge.xps	rundll32.exe
File opened for modification	\??\c:\program files\ReceiveSend.mp4v	rundll32.exe
File opened for modification	\??\c:\program files\RestoreSync.wav	rundll32.exe
File opened for modification	\??\c:\program files\SwitchRead.emz	rundll32.exe
File opened for modification	\??\c:\program files\UnpublishInitialize.rtf	rundll32.exe
File created	\??\c:\program files\ryg6t1-readme.txt	rundll32.exe
File opened for modification	\??\c:\program files\ConvertCopy.mht	rundll32.exe
File opened for modification	\??\c:\program files\UnregisterBlock.asf	rundll32.exe
File opened for modification	\??\c:\program files\OpenMerge.xps	rundll32.exe
File opened for modification	\??\c:\program files\PublishPush.php	rundll32.exe
File opened for modification	\??\c:\program files\RepairUninstall.tif	rundll32.exe
File created	\??\c:\program files (x86)\ryg6t1-readme.txt	rundll32.exe
File opened for modification	\??\c:\program files\DenyOpen.asp	rundll32.exe
File opened for modification	\??\c:\program files\RepairInitialize.tmp	rundll32.exe
File opened for modification	\??\c:\program files\SubmitCopy.xml	rundll32.exe
File opened for modification	\??\c:\program files\TraceSplit.TS	rundll32.exe
File opened for modification	\??\c:\program files\AddClear.mhtml	rundll32.exe
File opened for modification	\??\c:\program files\OutSubmit.m4v	rundll32.exe
File opened for modification	\??\c:\program files\PingComplete.wmf	rundll32.exe
File opened for modification	\??\c:\program files\StopCompare.vstm	rundll32.exe
File opened for modification	\??\c:\program files\UninstallConvertTo.iso	rundll32.exe
File opened for modification	\??\c:\program files\WriteEnable.dotx	rundll32.exe
File opened for modification	\??\c:\program files\WritePing.jpg	rundll32.exe
File opened for modification	\??\c:\program files\DebugNew.dxf	rundll32.exe
File opened for modification	\??\c:\program files\InitializeExport.m3u	rundll32.exe

System Location Discovery: System Language Discovery 1 TTPs 1 IoCs

Attempt gather information about the system language of a victim in order to infer the geographical location of that host.

discovery

System Language Discovery

T1614.001

description	ioc	Process
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	rundll32.exe

Suspicious behavior: EnumeratesProcesses 4 IoCs

pid	Process
4424	rundll32.exe
4424	rundll32.exe
4400	powershell.exe
4400	powershell.exe

Suspicious use of AdjustPrivilegeToken 4 IoCs

description	pid	Process
Token: SeDebugPrivilege	4400	powershell.exe
Token: SeBackupPrivilege	3716	vssvc.exe
Token: SeRestorePrivilege	3716	vssvc.exe
Token: SeAuditPrivilege	3716	vssvc.exe

Suspicious use of WriteProcessMemory 5 IoCs

description	pid	Process	procid_target
PID 2932 wrote to memory of 4424	2932	rundll32.exe	83
PID 2932 wrote to memory of 4424	2932	rundll32.exe	83
PID 2932 wrote to memory of 4424	2932	rundll32.exe	83
PID 4424 wrote to memory of 4400	4424	rundll32.exe	85
PID 4424 wrote to memory of 4400	4424	rundll32.exe	85

Uses Volume Shadow Copy service COM API
The Volume Shadow Copy service is used to manage backups/snapshots.
ransomware

C:\Windows\system32\rundll32.exe
rundll32.exe C:\Users\Admin\AppData\Local\Temp\solara\solara.dll,#1
1⤵
- Suspicious use of WriteProcessMemory
PID:2932
- C:\Windows\SysWOW64\rundll32.exe
  rundll32.exe C:\Users\Admin\AppData\Local\Temp\solara\solara.dll,#1
  2⤵
  - Enumerates connected drives
  - Drops file in Program Files directory
  - System Location Discovery: System Language Discovery
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of WriteProcessMemory
  PID:4424
- - C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe
    powershell -e RwBlAHQALQBXAG0AaQBPAGIAagBlAGMAdAAgAFcAaQBuADMAMgBfAFMAaABhAGQAbwB3AGMAbwBwAHkAIAB8ACAARgBvAHIARQBhAGMAaAAtAE8AYgBqAGUAYwB0ACAAewAkAF8ALgBEAGUAbABlAHQAZQAoACkAOwB9AA==
    3⤵
    - Suspicious behavior: EnumeratesProcesses
    - Suspicious use of AdjustPrivilegeToken
    PID:4400

C:\Windows\system32\wbem\unsecapp.exe
C:\Windows\system32\wbem\unsecapp.exe -Embedding
1⤵
PID:4420

C:\Windows\system32\vssvc.exe
C:\Windows\system32\vssvc.exe
1⤵
- Suspicious use of AdjustPrivilegeToken
PID:3716

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Discovery

Peripheral Device Discovery

Query Registry

System Information Discovery

1

T1082

System Location Discovery

1

T1614

System Language Discovery

1

T1614.001

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Replay Monitor

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Downloads

C:\Program Files (x86)\ryg6t1-readme.txt

Filesize
6KB

MD5
4b44f8e313838d705b91fa89f5407c1c

SHA1
30ded6181390ab3fa338af6c8730e8cd72b241da

SHA256
e7f6122ba482ba9968ace3e51a39e99a4489f98c9dba375f78e60260914a431e

SHA512
c5da19db3c5aef7a789c369ddfbc7c15ceba3ab233cbcb27064d4628f0d624f83b69a3889794adfb23d49223b3b37b8bb9b24c837a92c6da406eee5c24df7ba5

Download Submit
C:\Users\Admin\AppData\Local\Temp\__PSScriptPolicyTest_t43ymca4.ccv.ps1

Filesize
60B

MD5
d17fe0a3f47be24a6453e9ef58c94641

SHA1
6ab83620379fc69f80c0242105ddffd7d98d5d9d

SHA256
96ad1146eb96877eab5942ae0736b82d8b5e2039a80d3d6932665c1a4c87dcf7

SHA512
5b592e58f26c264604f98f6aa12860758ce606d1c63220736cf0c779e4e18e3cec8706930a16c38b20161754d1017d1657d35258e58ca22b18f5b232880dec82

Download Submit
memory/4400-0-0x00007FFD6E7F3000-0x00007FFD6E7F5000-memory.dmp

Filesize
8KB

Download
memory/4400-3-0x0000024B65DC0000-0x0000024B65DE2000-memory.dmp

Filesize
136KB

Download
memory/4400-11-0x00007FFD6E7F0000-0x00007FFD6F2B1000-memory.dmp

Filesize
10.8MB

Download
memory/4400-12-0x00007FFD6E7F0000-0x00007FFD6F2B1000-memory.dmp

Filesize
10.8MB

Download
memory/4400-15-0x00007FFD6E7F0000-0x00007FFD6F2B1000-memory.dmp

Filesize
10.8MB

Download

Analysis

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