djvu | ec9d5791f02cc5b005e9bb3619092d1645c8c29b50a34ed23381c3514cf512bf

General

Target

0284ef0c5e906d8c6f03393d9cd82e63.exe
Size

713KB
Sample

221020-tf7yaacdbm
MD5

0284ef0c5e906d8c6f03393d9cd82e63
SHA1

df461c8ad24f1b90f6c711a9a3a58c4228b4a9d8
SHA256

ec9d5791f02cc5b005e9bb3619092d1645c8c29b50a34ed23381c3514cf512bf
SHA512

fa2550870fc9155c1b39078c4faeb94dc24758fcc9640f45c5ed864269ff8aa3b3b081e3f055766ca7378372c456d81bfa2a922618e0bee4f5657a5b7fe4e6ce
SSDEEP

12288:QqxawfhDmjpg7CeeRa2METczyqsxREcPqSjPrO1iosNURIlWOZBnS:Q1ydtCeeA2ZDqMBP9oR+l7ZBn

Score

10^/10

Malware Config

Extracted

Family

djvu

C2

http://winnlinne.com/test1/get.php

Attributes

extension
.tuis
offline_id
Uz66zEbmA32arcxwT81zZhkb23026oHz5iSp8qt1
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
  
  0284ef0c5e906d8c6f03393d9cd82e63.exe
- Size
  
  713KB
- MD5
  
  0284ef0c5e906d8c6f03393d9cd82e63
- SHA1
  
  df461c8ad24f1b90f6c711a9a3a58c4228b4a9d8
- SHA256
  
  ec9d5791f02cc5b005e9bb3619092d1645c8c29b50a34ed23381c3514cf512bf
- SHA512
  
  fa2550870fc9155c1b39078c4faeb94dc24758fcc9640f45c5ed864269ff8aa3b3b081e3f055766ca7378372c456d81bfa2a922618e0bee4f5657a5b7fe4e6ce
- SSDEEP
  
  12288:QqxawfhDmjpg7CeeRa2METczyqsxREcPqSjPrO1iosNURIlWOZBnS:Q1ydtCeeA2ZDqMBP9oR+l7ZBn
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 behavioral2