djvu | c95133965d584eece8e83c824649d42b0be0e77b9ab14c5c39789c642ca19654

General

Target

c95133965d584eece8e83c824649d42b0be0e77b9ab14c5c39789c642ca19654
Size

814KB
Sample

221008-csqq4aeaa2
MD5

3cea4cf14cd0a2175326d89a281e0e81
SHA1

9db8ea1bf0b6aba56dd689a022b8ad5af6e65523
SHA256

c95133965d584eece8e83c824649d42b0be0e77b9ab14c5c39789c642ca19654
SHA512

4b715a8d07d52efde2976369e7c61ddc79b666438e045ab74cdfa694d1969e9593f4b7e4b56eb6ef1cbeaf083add282cd8278622c1bffdd7adfa37603340a060
SSDEEP

12288:OuxDxEKZiXPRjiuGAKVLJxp74wRluVtwrPSgnr1gVWBdJ4sUcIg9NCvrU7RW:OuFGwiXPRjiuDKVhgVOOQ1vMsUc9NwO

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
  
  c95133965d584eece8e83c824649d42b0be0e77b9ab14c5c39789c642ca19654
- Size
  
  814KB
- MD5
  
  3cea4cf14cd0a2175326d89a281e0e81
- SHA1
  
  9db8ea1bf0b6aba56dd689a022b8ad5af6e65523
- SHA256
  
  c95133965d584eece8e83c824649d42b0be0e77b9ab14c5c39789c642ca19654
- SHA512
  
  4b715a8d07d52efde2976369e7c61ddc79b666438e045ab74cdfa694d1969e9593f4b7e4b56eb6ef1cbeaf083add282cd8278622c1bffdd7adfa37603340a060
- SSDEEP
  
  12288:OuxDxEKZiXPRjiuGAKVLJxp74wRluVtwrPSgnr1gVWBdJ4sUcIg9NCvrU7RW:OuFGwiXPRjiuDKVhgVOOQ1vMsUc9NwO
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