djvu | 8a57aa96e30f490a6031fb777829530dc6fdd07a6380629173a52d23ca96df08

General

Target

8a57aa96e30f490a6031fb777829530dc6fdd07a6380629173a52d23ca96df08
Size

787KB
Sample

221007-x1xjtsddhl
MD5

1d4f2942e0b4275d2ec80d8888a89bf1
SHA1

a38459dbd5f0b383510fda02711a5399c76e60dc
SHA256

8a57aa96e30f490a6031fb777829530dc6fdd07a6380629173a52d23ca96df08
SHA512

1b8b5cc3c6b14695f7f0b7eb3048ad60d7e082ad95f930610d1c62c61edd46777f8b5ae40c45c7becc6dae43ccff2fe6a1dd2c3ea9a78af775265bb009983042
SSDEEP

24576:YpRaOuhqlOrmR6Cus2eAm9oPU0kJQ6YIH:YXaLhIP6C34m9kKO6Y

Score

10^/10

Malware Config

Extracted

Family

djvu

C2

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

Attributes

extension
.towz
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
  
  8a57aa96e30f490a6031fb777829530dc6fdd07a6380629173a52d23ca96df08
- Size
  
  787KB
- MD5
  
  1d4f2942e0b4275d2ec80d8888a89bf1
- SHA1
  
  a38459dbd5f0b383510fda02711a5399c76e60dc
- SHA256
  
  8a57aa96e30f490a6031fb777829530dc6fdd07a6380629173a52d23ca96df08
- SHA512
  
  1b8b5cc3c6b14695f7f0b7eb3048ad60d7e082ad95f930610d1c62c61edd46777f8b5ae40c45c7becc6dae43ccff2fe6a1dd2c3ea9a78af775265bb009983042
- SSDEEP
  
  24576:YpRaOuhqlOrmR6Cus2eAm9oPU0kJQ6YIH:YXaLhIP6C34m9kKO6Y
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