djvu | b848da7fa7426c7f2b0ebd1f3dc57298eed567a5facf9595f9cab7da275a4c00

General

Target

b848da7fa7426c7f2b0ebd1f3dc57298eed567a5facf9595f9cab7da275a4c00
Size

800KB
Sample

230206-yy2w7sff94
MD5

fa2f4762ce0a69631771795ca93da972
SHA1

6ae53b96e05eba10a0f8ff4e4205951c3157611f
SHA256

b848da7fa7426c7f2b0ebd1f3dc57298eed567a5facf9595f9cab7da275a4c00
SHA512

cd6e5cc9a39dacd9542e69f8dc620309c855852b677a268d0038bf7c15c8cf87bbfcb6dddd586626913fd3ce6865f6bfa2cf52eb325163c72b14a8ead080f3fe
SSDEEP

24576:C5ZUBwHwCmB1mObUYOqdGUcMtMv0aifJljr:C5ZUBwHDmhUYXIrssfujj

Score

10^/10

djvu vidar 19 discovery persistence ransomware spyware stealer

Malware Config

Extracted

Family

djvu

C2

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

Attributes

extension
.erqw
offline_id
xVB7l5LcUtDGyghMgGsTvebrKc0RGgDXlN1BoKt1
payload_url
http://uaery.top/dl/build2.exe
http://bihsy.com/files/1/build3.exe
ransomnote
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rsa_pubkey.plain

Extracted

Family

vidar

Version

2.3

Botnet

19

C2

https://t.me/mantarlars

https://steamcommunity.com/profiles/76561199474840123

Attributes

profile_id
19

Targets

- Target
  
  b848da7fa7426c7f2b0ebd1f3dc57298eed567a5facf9595f9cab7da275a4c00
- Size
  
  800KB
- MD5
  
  fa2f4762ce0a69631771795ca93da972
- SHA1
  
  6ae53b96e05eba10a0f8ff4e4205951c3157611f
- SHA256
  
  b848da7fa7426c7f2b0ebd1f3dc57298eed567a5facf9595f9cab7da275a4c00
- SHA512
  
  cd6e5cc9a39dacd9542e69f8dc620309c855852b677a268d0038bf7c15c8cf87bbfcb6dddd586626913fd3ce6865f6bfa2cf52eb325163c72b14a8ead080f3fe
- SSDEEP
  
  24576:C5ZUBwHwCmB1mObUYOqdGUcMtMv0aifJljr:C5ZUBwHDmhUYXIrssfujj
Score

10^/10

djvu vidar 19 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
- Checks computer location settings
  Looks up country code configured in the registry, likely geofence.
- 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