djvu | 7abafe91e3702749f9f932174f2f81951d926eb50ab4acc62255db850500f5a0

General

Target

7abafe91e3702749f9f932174f2f81951d926eb50ab4acc62255db850500f5a0
Size

684KB
Sample

230212-x6fs9sga53
MD5

9a2d561536438eb269576ec6295fcdbc
SHA1

ee61f6b87d6848bed0a78c21c5e833f1769d2855
SHA256

7abafe91e3702749f9f932174f2f81951d926eb50ab4acc62255db850500f5a0
SHA512

97a8bb4a203d6ce63a4c72178ee046de6013af8de8d37c573fde86633948460d58e6b0068cdcc7375f1967528f11f494a87f5b5bdfe9c5127ec2e90070fbe640
SSDEEP

12288:f+VabmGCTG4YaGt9WF5qh/mSWq00SOEdeQoRPdKY3xOqgpzarE0nvhB:fBmGL4YaE9Wm8tp0Sd+RL3eoE6vhB

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
  
  7abafe91e3702749f9f932174f2f81951d926eb50ab4acc62255db850500f5a0
- Size
  
  684KB
- MD5
  
  9a2d561536438eb269576ec6295fcdbc
- SHA1
  
  ee61f6b87d6848bed0a78c21c5e833f1769d2855
- SHA256
  
  7abafe91e3702749f9f932174f2f81951d926eb50ab4acc62255db850500f5a0
- SHA512
  
  97a8bb4a203d6ce63a4c72178ee046de6013af8de8d37c573fde86633948460d58e6b0068cdcc7375f1967528f11f494a87f5b5bdfe9c5127ec2e90070fbe640
- SSDEEP
  
  12288:f+VabmGCTG4YaGt9WF5qh/mSWq00SOEdeQoRPdKY3xOqgpzarE0nvhB:fBmGL4YaE9Wm8tp0Sd+RL3eoE6vhB
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