djvu | 0736afc494646390af85c92a0bfe87b8648e65c8cc5474de8d7695fe3af75819

General

Target

0736afc494646390af85c92a0bfe87b8648e65c8cc5474de8d7695fe3af75819
Size

885KB
Sample

230210-y1f3hsba52
MD5

aebaf99cc73c4c6a138674be3233113f
SHA1

d4cb12d55649a0443ee7f77fed25e6f343ab9ec9
SHA256

0736afc494646390af85c92a0bfe87b8648e65c8cc5474de8d7695fe3af75819
SHA512

61c8baa08a7a029d29019cf1c7191ad686c7241bcde66a514aa83b85159a23a33e65b67adea3e96fa06621e80346573ca5e64820701d70e58afa4bbcd6219c28
SSDEEP

12288:aKrqlB4+CBeAGfFrwcCNcTyt0uLZBnAv88p/tYvI9rPe7mhnfWE:aKr+BmufFrnT14fAvTtYAJUOnfW

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
  
  0736afc494646390af85c92a0bfe87b8648e65c8cc5474de8d7695fe3af75819
- Size
  
  885KB
- MD5
  
  aebaf99cc73c4c6a138674be3233113f
- SHA1
  
  d4cb12d55649a0443ee7f77fed25e6f343ab9ec9
- SHA256
  
  0736afc494646390af85c92a0bfe87b8648e65c8cc5474de8d7695fe3af75819
- SHA512
  
  61c8baa08a7a029d29019cf1c7191ad686c7241bcde66a514aa83b85159a23a33e65b67adea3e96fa06621e80346573ca5e64820701d70e58afa4bbcd6219c28
- SSDEEP
  
  12288:aKrqlB4+CBeAGfFrwcCNcTyt0uLZBnAv88p/tYvI9rPe7mhnfWE:aKr+BmufFrnT14fAvTtYAJUOnfW
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
- 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