djvu | 87b77ad3cf85d5924be5ce8423782a5da47ee90b5b286b67b0b73d6001313da3

General

Target

87b77ad3cf85d5924be5ce8423782a5da47ee90b5b286b67b0b73d6001313da3
Size

853KB
Sample

211129-fxnn3sefa7
MD5

fd4af05f263f8d2030d76f7b00cd51e4
SHA1

ba8103d56fefb1774a32ab0be8f08acf93e872bd
SHA256

87b77ad3cf85d5924be5ce8423782a5da47ee90b5b286b67b0b73d6001313da3
SHA512

d82265e2bc7bba710c6966c757eb8d63fe6ceed66317dec894103cbda306ff8e1dd32b5c218e0c7d10b809c2ce300732f091f36843d7ff92348b5705c699e618

Score

10^/10

Malware Config

Extracted

Family

djvu

C2

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

Attributes

extension
.robm
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
  
  87b77ad3cf85d5924be5ce8423782a5da47ee90b5b286b67b0b73d6001313da3
- Size
  
  853KB
- MD5
  
  fd4af05f263f8d2030d76f7b00cd51e4
- SHA1
  
  ba8103d56fefb1774a32ab0be8f08acf93e872bd
- SHA256
  
  87b77ad3cf85d5924be5ce8423782a5da47ee90b5b286b67b0b73d6001313da3
- SHA512
  
  d82265e2bc7bba710c6966c757eb8d63fe6ceed66317dec894103cbda306ff8e1dd32b5c218e0c7d10b809c2ce300732f091f36843d7ff92348b5705c699e618
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