djvu | b4bfa184f7735e685fcc5f96a710d33646a59b3b9414727cecc5892eb1a8e183

General

Target

b4bfa184f7735e685fcc5f96a710d33646a59b3b9414727cecc5892eb1a8e183
Size

693KB
Sample

230215-aqqxzahb34
MD5

9142a13290c67e7fda8aeeaa2afe3911
SHA1

de7d7f68bac8bec6cbcfcfc02a352755f316320d
SHA256

b4bfa184f7735e685fcc5f96a710d33646a59b3b9414727cecc5892eb1a8e183
SHA512

253795c1d9514e970dd4beb67f8bd2c82aa2bfa3ff9a713eec95ff1ac33a35f05de2596bd99374d95e4630a305fc2c7c2f589366a2c4067bde5d0e5f21c71a3f
SSDEEP

12288:7PwChgujmlCCtbEnY0HZPQyVGDouxCsZ0J5C0GSTSp0jDfvtvaTU57jM0OJFSk7:MygujmJtbQRH9xMkuV85lGSjffITU5xc

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
.hhmm
offline_id
dMMXkgwQTycP13C5xwPbHDSzhx1ZxiPgIMZXewt1
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

2.5

Botnet

19

Attributes

profile_id
19

Targets

- Target
  
  b4bfa184f7735e685fcc5f96a710d33646a59b3b9414727cecc5892eb1a8e183
- Size
  
  693KB
- MD5
  
  9142a13290c67e7fda8aeeaa2afe3911
- SHA1
  
  de7d7f68bac8bec6cbcfcfc02a352755f316320d
- SHA256
  
  b4bfa184f7735e685fcc5f96a710d33646a59b3b9414727cecc5892eb1a8e183
- SHA512
  
  253795c1d9514e970dd4beb67f8bd2c82aa2bfa3ff9a713eec95ff1ac33a35f05de2596bd99374d95e4630a305fc2c7c2f589366a2c4067bde5d0e5f21c71a3f
- SSDEEP
  
  12288:7PwChgujmlCCtbEnY0HZPQyVGDouxCsZ0J5C0GSTSp0jDfvtvaTU57jM0OJFSk7:MygujmJtbQRH9xMkuV85lGSjffITU5xc
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