djvu | c4fa4bae3bdc349345bd1127d6bfd3e8dcc8a95335366bbb5c45f6083539b5a8

General

Target

c4fa4bae3bdc349345bd1127d6bfd3e8dcc8a95335366bbb5c45f6083539b5a8
Size

720KB
Sample

220925-m5ybtaffdn
MD5

a4c9d23e38c67932e510d9944924e524
SHA1

3ecf6faa3f11b2385b2ae9a6cdea8979ede5073c
SHA256

c4fa4bae3bdc349345bd1127d6bfd3e8dcc8a95335366bbb5c45f6083539b5a8
SHA512

fb5090356711cc306ce5396c76f2cb303b199a8a4bc1a502a6942c74b5b074c9131cfd882bac05f6b26d2c928dedc04d1ff787b8048b54689340fd76898759b6
SSDEEP

12288:1Eycy76vCxvLB/PG5jzqyhTKnN2kM2CSzRPP1:1E06vCxTx+Nz5gnNHgSB9

Score

10^/10

Malware Config

Extracted

Family

djvu

C2

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

Attributes

extension
.oflg
offline_id
xkNzhkB1wvgoDI7Uo0HPNLY3qCuwoFpP7nlhlut1
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

54.6

Botnet

517

C2

https://t.me/huobiinside

https://mas.to/@kyriazhs1975

Attributes

profile_id
517

Targets

- Target
  
  c4fa4bae3bdc349345bd1127d6bfd3e8dcc8a95335366bbb5c45f6083539b5a8
- Size
  
  720KB
- MD5
  
  a4c9d23e38c67932e510d9944924e524
- SHA1
  
  3ecf6faa3f11b2385b2ae9a6cdea8979ede5073c
- SHA256
  
  c4fa4bae3bdc349345bd1127d6bfd3e8dcc8a95335366bbb5c45f6083539b5a8
- SHA512
  
  fb5090356711cc306ce5396c76f2cb303b199a8a4bc1a502a6942c74b5b074c9131cfd882bac05f6b26d2c928dedc04d1ff787b8048b54689340fd76898759b6
- SSDEEP
  
  12288:1Eycy76vCxvLB/PG5jzqyhTKnN2kM2CSzRPP1:1E06vCxTx+Nz5gnNHgSB9
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
- 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