djvu | f6057c6991374fdcebaa0496115d03c84973a18f9aeb66b6352f80c4c63c5721

General

Target
f6057c6991374fdcebaa0496115d03c84973a18f9aeb66b6352f80c4c63c5721
Size 721KB
Sample221022-nvkhmscha5
SHA256 f6057c6991374fdcebaa0496115d03c84973a18f9aeb66b6352f80c4c63c5721
MD5 d6c8b0a224c8a19bef0e754b273b95c7
SHA1 51e247943c0397d407d1690af6b6866ad447255b
SHA512 bb71f1e5a8ac0a2d1b0fe3d0bb5f22556978669e15d2184719430d22874b7c6e6ccd73c4f5c085926a02f9c30e7cae6d6e1c6f39b69d8746453a100285e543f2
SSDEEP 12288:Uyh7p9smi+6XnN896o+zbV/Fg5klrCHtuE+zgcbXwxMCtK:U+p9a+6Xnjo+1tgelrMtLaghXK
MD5 SHA1 SHA512 SSDEEP

Score

10^/10

Malware Config

Extracted

Family

djvu

C2

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

Attributes

extension
.nury
offline_id
KFBzXY7hTnWvKHIgFKUOR1MsE6RDJJwQPj1ozPt1
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

55.1

Botnet

517

C2

https://t.me/tg_privatetalk
https://nerdculture.de/@yixehi33

Attributes

profile_id
517

Targets

- Target
  f6057c6991374fdcebaa0496115d03c84973a18f9aeb66b6352f80c4c63c5721
- Size 721KB
- SHA256 f6057c6991374fdcebaa0496115d03c84973a18f9aeb66b6352f80c4c63c5721
- MD5 d6c8b0a224c8a19bef0e754b273b95c7
- SHA1 51e247943c0397d407d1690af6b6866ad447255b
- SHA512 bb71f1e5a8ac0a2d1b0fe3d0bb5f22556978669e15d2184719430d22874b7c6e6ccd73c4f5c085926a02f9c30e7cae6d6e1c6f39b69d8746453a100285e543f2
- SSDEEP 12288:Uyh7p9smi+6XnN896o+zbV/Fg5klrCHtuE+zgcbXwxMCtK:U+p9a+6Xnjo+1tgelrMtLaghXK
- MD5 SHA1 SHA512 SSDEEP
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