djvu | a19a8943391c97ad95035d8aa292f2588085539195f4ec2904e8c7b434971822

General

Target

a19a8943391c97ad95035d8aa292f2588085539195f4ec2904e8c7b434971822
Size

833KB
Sample

211127-yprpwagbg9
MD5

b6cff0c0947d3e046d457c2f9740cd6a
SHA1

87fbca04cce2085a95f9a6b1015cb9bfffd15db2
SHA256

a19a8943391c97ad95035d8aa292f2588085539195f4ec2904e8c7b434971822
SHA512

b0cd310bf03b1774238c47435908b7d279d958412a52ba666f35df049e2117381567909f2271c893ff74a1b01e1c53c65425fc18ebb2645723a13638fd43354d

Score

10^/10

Malware Config

Extracted

Family

djvu

C2

http://tzgl.org/fhsgtsspen6/get.php

Attributes

extension
.rigj
offline_id
Z5GGASEfY71jtxU3i3E8kzvrTJmY9oiZkjcSm0t1
payload_url
http://kotob.top/dl/build2.exe

http://tzgl.org/files/1/build3.exe
ransomnote
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rsa_pubkey.plain

Extracted

Family

vidar

Version

48.7

Botnet

517

C2

https://mstdn.social/@anapa

https://mastodon.social/@mniami

Attributes

profile_id
517

Targets

- Target
  
  a19a8943391c97ad95035d8aa292f2588085539195f4ec2904e8c7b434971822
- Size
  
  833KB
- MD5
  
  b6cff0c0947d3e046d457c2f9740cd6a
- SHA1
  
  87fbca04cce2085a95f9a6b1015cb9bfffd15db2
- SHA256
  
  a19a8943391c97ad95035d8aa292f2588085539195f4ec2904e8c7b434971822
- SHA512
  
  b0cd310bf03b1774238c47435908b7d279d958412a52ba666f35df049e2117381567909f2271c893ff74a1b01e1c53c65425fc18ebb2645723a13638fd43354d
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
- Vidar Stealer
  stealer
- 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