djvu | 7907a84d9032b484ea58c7dde344a1747db36c55de2ecc4d9b05d84df2683344

General

Target

7907a84d9032b484ea58c7dde344a1747db36c55de2ecc4d9b05d84df2683344
Size

678KB
Sample

230214-f8k3bsbb42
MD5

594962b829b145c4993a8bcdce043abb
SHA1

25513b18991b375560d6c833f4fc15515a5d1db2
SHA256

7907a84d9032b484ea58c7dde344a1747db36c55de2ecc4d9b05d84df2683344
SHA512

6ca0c6761815c4f7022f372a8cfd3ea4241c96207ac5a0175e1e0aac71c41454639ee2d0e26abc746fe4218a24af1319fde538def226988a5fa2590773d16553
SSDEEP

12288:nCCj2qORSxVrUdkBbrCUtthllHDXTD4ZqTKf50ePAZQlefu:V5thHDXyqTYf0G

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
  
  7907a84d9032b484ea58c7dde344a1747db36c55de2ecc4d9b05d84df2683344
- Size
  
  678KB
- MD5
  
  594962b829b145c4993a8bcdce043abb
- SHA1
  
  25513b18991b375560d6c833f4fc15515a5d1db2
- SHA256
  
  7907a84d9032b484ea58c7dde344a1747db36c55de2ecc4d9b05d84df2683344
- SHA512
  
  6ca0c6761815c4f7022f372a8cfd3ea4241c96207ac5a0175e1e0aac71c41454639ee2d0e26abc746fe4218a24af1319fde538def226988a5fa2590773d16553
- SSDEEP
  
  12288:nCCj2qORSxVrUdkBbrCUtthllHDXTD4ZqTKf50ePAZQlefu:V5thHDXyqTYf0G
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