djvu | f8af21d2aa037b9dcab2bd0ca7fe4321aaef3119b23bf0f1eec7abf115fcf454

General

Target

f8af21d2aa037b9dcab2bd0ca7fe4321aaef3119b23bf0f1eec7abf115fcf454
Size

787KB
Sample

221007-cr2f7sbda2
MD5

925d49af178b98a12118f93c8a82422d
SHA1

cbeff9068bfe1f440053f42484af914962e58c40
SHA256

f8af21d2aa037b9dcab2bd0ca7fe4321aaef3119b23bf0f1eec7abf115fcf454
SHA512

35f825b52d152ab6150f65fd1adabf4827726dceb0d97151d5f68ca4e326878ecdc5f207cf1fbcc423d10e624f7028b1e02f6bc5a28062363d80c2f8a5eb3c73
SSDEEP

12288:dWQ7LPHacEFnn59GS89x+0Yko2oJXWwRx0wYQkYRgKIq280A59twDUHRunnZNdKW:dF7BKn22Lklz6x9ZhqAxw4H6pK

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
  
  f8af21d2aa037b9dcab2bd0ca7fe4321aaef3119b23bf0f1eec7abf115fcf454
- Size
  
  787KB
- MD5
  
  925d49af178b98a12118f93c8a82422d
- SHA1
  
  cbeff9068bfe1f440053f42484af914962e58c40
- SHA256
  
  f8af21d2aa037b9dcab2bd0ca7fe4321aaef3119b23bf0f1eec7abf115fcf454
- SHA512
  
  35f825b52d152ab6150f65fd1adabf4827726dceb0d97151d5f68ca4e326878ecdc5f207cf1fbcc423d10e624f7028b1e02f6bc5a28062363d80c2f8a5eb3c73
- SSDEEP
  
  12288:dWQ7LPHacEFnn59GS89x+0Yko2oJXWwRx0wYQkYRgKIq280A59twDUHRunnZNdKW:dF7BKn22Lklz6x9ZhqAxw4H6pK
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