djvu | deb7ebd62a390924b91dd3ba906c3e039a37d0d37fbfa8a8b90b95dc3fbb5869

General

Target

deb7ebd62a390924b91dd3ba906c3e039a37d0d37fbfa8a8b90b95dc3fbb5869
Size

880KB
Sample

230211-gdkzhsac6s
MD5

583709743307f1a56efb4530359e5638
SHA1

3286537d896e4276e076cfc28b7a35aad04ec4c2
SHA256

deb7ebd62a390924b91dd3ba906c3e039a37d0d37fbfa8a8b90b95dc3fbb5869
SHA512

76b484411644f93860c1724434cb2bc838c15f507d76c3543be9b3714a2e276ed6bf734f96a9b9e8a6b7008fbaf72a691cb9cc5bcaacbc06473e36caf1e5e874
SSDEEP

12288:sbs0DD6kx+5n8trICS6tYK/Zgv070oQYRrcQBMdk:stDpxmn8NI6R8o1AQBMdk

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
.vvmm
offline_id
9c20OtJsXdFeF07b1IeFK5ERGv1zIb659YG380t1
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

2.4

Botnet

19

Attributes

profile_id
19

Targets

- Target
  
  deb7ebd62a390924b91dd3ba906c3e039a37d0d37fbfa8a8b90b95dc3fbb5869
- Size
  
  880KB
- MD5
  
  583709743307f1a56efb4530359e5638
- SHA1
  
  3286537d896e4276e076cfc28b7a35aad04ec4c2
- SHA256
  
  deb7ebd62a390924b91dd3ba906c3e039a37d0d37fbfa8a8b90b95dc3fbb5869
- SHA512
  
  76b484411644f93860c1724434cb2bc838c15f507d76c3543be9b3714a2e276ed6bf734f96a9b9e8a6b7008fbaf72a691cb9cc5bcaacbc06473e36caf1e5e874
- SSDEEP
  
  12288:sbs0DD6kx+5n8trICS6tYK/Zgv070oQYRrcQBMdk:stDpxmn8NI6R8o1AQBMdk
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