djvu | d3565ce8a4902ae8bfca9a7b4fec4345a109c2064719c63c8c9b92844fd20513

General

Target

d3565ce8a4902ae8bfca9a7b4fec4345a109c2064719c63c8c9b92844fd20513
Size

790KB
Sample

221008-z78a1sfggr
MD5

1d300efd6540e957d8fe82ff8a3eabe0
SHA1

764370fd5b58afb7e80c1433174c66218f2f77b0
SHA256

d3565ce8a4902ae8bfca9a7b4fec4345a109c2064719c63c8c9b92844fd20513
SHA512

ab73b2fc7b688451d0515de618cdfc55e50890e682d7c61b8e77335a380738dff8971bbcc96c4eee1c535ce10e9256a27a631ad14f47044dd1b41ac3f7c1b51c
SSDEEP

12288:tLJq1ATVY+MxbUSxAg6XPQV7zH54nq83pyp8WNZiEdLDmIE2NKBtTHX0:tFq1AVY+Yg9NQ5z2qIyegioLOiKjT30

Score

10^/10

Malware Config

Extracted

Family

djvu

C2

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

Attributes

extension
.tohj
offline_id
SSHsHMHGmSIhrz50VnIxLJJX15osxEQY6iXedXt1
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

54.9

Botnet

517

C2

https://t.me/larsenup

https://ioc.exchange/@zebra54

Attributes

profile_id
517

Targets

- Target
  
  d3565ce8a4902ae8bfca9a7b4fec4345a109c2064719c63c8c9b92844fd20513
- Size
  
  790KB
- MD5
  
  1d300efd6540e957d8fe82ff8a3eabe0
- SHA1
  
  764370fd5b58afb7e80c1433174c66218f2f77b0
- SHA256
  
  d3565ce8a4902ae8bfca9a7b4fec4345a109c2064719c63c8c9b92844fd20513
- SHA512
  
  ab73b2fc7b688451d0515de618cdfc55e50890e682d7c61b8e77335a380738dff8971bbcc96c4eee1c535ce10e9256a27a631ad14f47044dd1b41ac3f7c1b51c
- SSDEEP
  
  12288:tLJq1ATVY+MxbUSxAg6XPQV7zH54nq83pyp8WNZiEdLDmIE2NKBtTHX0:tFq1AVY+Yg9NQ5z2qIyegioLOiKjT30
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