djvu | 3d21bd55dd5a4c840e443a766c53d92411b2dc73753cf16635a2b369022618e7

General

Target

3d21bd55dd5a4c840e443a766c53d92411b2dc73753cf16635a2b369022618e7
Size

794KB
Sample

221010-yl9fhsdbem
MD5

6af30eb9cabad2e00df94b6ffbc7ec06
SHA1

be2e8c16e3305ce0ffb55c639155a433bbbdbfc5
SHA256

3d21bd55dd5a4c840e443a766c53d92411b2dc73753cf16635a2b369022618e7
SHA512

6b5bdbaff91eec7ce2328c36cba7715196e64969aba10481afad5f0568b60921f7c19e8214e04e845a8f597ee5d77b31fd54ac4dc16b51d9601bdc52adec9eb7
SSDEEP

12288:4YOQAL5uJBSZ6aI7d5EC4A03slN2ImJQ4TCIqR/kv4C1TR1E58Ued3Q3iod:4YOQ+s6hCdx4A1+95TCI74CRReZeOB

Score

10^/10

Malware Config

Extracted

Family

djvu

C2

http://winnlinne.com/test1/get.php

Attributes

extension
.tohj
offline_id
SSHsHMHGmSIhrz50VnIxLJJX15osxEQY6iXedXt1
payload_url
http://rgyui.top/dl/build2.exe

http://winnlinne.com/files/1/build3.exe
ransomnote
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rsa_pubkey.plain

Extracted

Family

vidar

Version

54.9

Botnet

517

C2

https://t.me/larsenup

https://ioc.exchange/@zebra54

Attributes

profile_id
517

Targets

- Target
  
  3d21bd55dd5a4c840e443a766c53d92411b2dc73753cf16635a2b369022618e7
- Size
  
  794KB
- MD5
  
  6af30eb9cabad2e00df94b6ffbc7ec06
- SHA1
  
  be2e8c16e3305ce0ffb55c639155a433bbbdbfc5
- SHA256
  
  3d21bd55dd5a4c840e443a766c53d92411b2dc73753cf16635a2b369022618e7
- SHA512
  
  6b5bdbaff91eec7ce2328c36cba7715196e64969aba10481afad5f0568b60921f7c19e8214e04e845a8f597ee5d77b31fd54ac4dc16b51d9601bdc52adec9eb7
- SSDEEP
  
  12288:4YOQAL5uJBSZ6aI7d5EC4A03slN2ImJQ4TCIqR/kv4C1TR1E58Ued3Q3iod:4YOQ+s6hCdx4A1+95TCI74CRReZeOB
Score

10^/10

djvu vidar 517 discovery persistence ransomware spyware stealer
- Detected Djvu ransomware
- Djvu Ransomware
  Ransomware which is a variant of the STOP family.
  ransomware djvu
- Vidar
  Vidar is an infostealer based on Arkei stealer.
  stealer vidar
- Downloads MZ/PE file
- Executes dropped EXE
- Checks computer location settings
  Looks up country code configured in the registry, likely geofence.
- Loads dropped DLL
- Modifies file permissions
  discovery
- Reads user/profile data of web browsers
  Infostealers often target stored browser data, which can include saved credentials etc.
  spyware stealer
- Accesses 2FA software files, possible credential harvesting
  spyware stealer
- Accesses cryptocurrency files/wallets, possible credential harvesting
  spyware
- Adds Run key to start application
  persistence
- Checks installed software on the system
  Looks up Uninstall key entries in the registry to enumerate software on the system.
  discovery
- Looks up external IP address via web service
  Uses a legitimate IP lookup service to find the infected system's external IP.
- Suspicious use of SetThreadContext
behavioral1