djvu | d6d9d29894a812305179e536f65c1d835c3be7bb04bdf54d320e17d058596357

General

Target

d6d9d29894a812305179e536f65c1d835c3be7bb04bdf54d320e17d058596357
Size

752KB
Sample

230216-m4jf9shc37
MD5

85bc7a40f050e2dd6869097e3db18b76
SHA1

55d82c980a8cea679c412a00b80eb56e06b1bbd7
SHA256

d6d9d29894a812305179e536f65c1d835c3be7bb04bdf54d320e17d058596357
SHA512

095c95dce2e4261887785957e30beabf75de363f449239ca034b2da8349f2ee0facb5ba1326eaae6f3326cdb1f37ffd8fed064eb0220fd49a701f1d6facb64e0
SSDEEP

12288:ARHsvHLNCLNPFwsULmql+PbT1ZZIFxPLN9dtLssc8hKgF0F9n+E:A1s/LNSkxMPP1fIrLjdtLE8hKgi9+

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
  
  d6d9d29894a812305179e536f65c1d835c3be7bb04bdf54d320e17d058596357
- Size
  
  752KB
- MD5
  
  85bc7a40f050e2dd6869097e3db18b76
- SHA1
  
  55d82c980a8cea679c412a00b80eb56e06b1bbd7
- SHA256
  
  d6d9d29894a812305179e536f65c1d835c3be7bb04bdf54d320e17d058596357
- SHA512
  
  095c95dce2e4261887785957e30beabf75de363f449239ca034b2da8349f2ee0facb5ba1326eaae6f3326cdb1f37ffd8fed064eb0220fd49a701f1d6facb64e0
- SSDEEP
  
  12288:ARHsvHLNCLNPFwsULmql+PbT1ZZIFxPLN9dtLssc8hKgF0F9n+E:A1s/LNSkxMPP1fIrLjdtLE8hKgi9+
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