djvu | ca81a9d68d21a4ce49520bc614a1f005c1c55efa8ae2d233909764a6b0ea5353

General

Target

ca81a9d68d21a4ce49520bc614a1f005c1c55efa8ae2d233909764a6b0ea5353
Size

717KB
Sample

230331-1534ysfc3s
MD5

fadb8e9e15078704aaed60981b97dbb4
SHA1

a774a65f0cf00ae792e752fb29ff794c8572bf9a
SHA256

ca81a9d68d21a4ce49520bc614a1f005c1c55efa8ae2d233909764a6b0ea5353
SHA512

da3be2241c1c5ef743fdb0a60754e17fbdcff0064e7de130e19ba052e75ac68213b931f66326d7414ebf06e95d3fe31c8ea6055619b8cce22d8dc1e3291f3e74
SSDEEP

12288:iLrxtEomlCuJmM15WAK1OVCv77sKaZW7jjUxTA4B9TD1+anO26tXdr:OTEplC+JWAVVCjoW7jOtB9TDM6Z0X5

Score

10^/10

Malware Config

Extracted

Family

djvu

C2

http://zexeq.com/test2/get.php

Attributes

extension
.nifr
offline_id
FCP2fiITr4rryFhFBnA59GMgwES5CunmcbPc76t1
payload_url
http://uaery.top/dl/build2.exe

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

Extracted

Family

vidar

Version

3.2

Botnet

5df88deb5dde677ba658b77ad5f60248

C2

https://steamcommunity.com/profiles/76561199489580435

https://t.me/tabootalks

Attributes

profile_id_v2
5df88deb5dde677ba658b77ad5f60248
user_agent
Mozilla/5.0 (Windows NT 6.1; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/105.0.0.0 Safari/537.36 OPR/91.0.4516.79

Targets

- Target
  
  ca81a9d68d21a4ce49520bc614a1f005c1c55efa8ae2d233909764a6b0ea5353
- Size
  
  717KB
- MD5
  
  fadb8e9e15078704aaed60981b97dbb4
- SHA1
  
  a774a65f0cf00ae792e752fb29ff794c8572bf9a
- SHA256
  
  ca81a9d68d21a4ce49520bc614a1f005c1c55efa8ae2d233909764a6b0ea5353
- SHA512
  
  da3be2241c1c5ef743fdb0a60754e17fbdcff0064e7de130e19ba052e75ac68213b931f66326d7414ebf06e95d3fe31c8ea6055619b8cce22d8dc1e3291f3e74
- SSDEEP
  
  12288:iLrxtEomlCuJmM15WAK1OVCv77sKaZW7jjUxTA4B9TD1+anO26tXdr:OTEplC+JWAVVCjoW7jOtB9TDM6Z0X5
Score

10^/10

djvu vidar 5df88deb5dde677ba658b77ad5f60248 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
- 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