djvu | 2bd2cdd9908776fc0488ea4a914f7b2feb76581a9a61604f73353a922621a009

General

Target
file.exe
Size 270KB
Sample221008-v8x48afcaq
SHA256 2bd2cdd9908776fc0488ea4a914f7b2feb76581a9a61604f73353a922621a009
MD5 99317001ebeb71fe1e5d8ef4f23ccab2
SHA1 782c40832eb552c73f9064f19152951b687afd91
SHA512 71358fb41e24197b85dc086b2930e1cd049e4f0786ebefa7cab64cdfea002826a633769d0b84599f4c46bd30f469a699dba787d0e35cdd58079c696454db92e3
SSDEEP 6144:TkEB+GM0Eh2Pc9n9ooEqVFqOLqmxrwVfXS:TZEh2PebLDx
MD5 SHA1 SHA512 SSDEEP

Score

10^/10

Malware Config

Extracted

Family

djvu

C2

http://winnlinne.com/lancer/get.php

Attributes

extension
.towz
offline_id
SSHsHMHGmSIhrz50VnIxLJJX15osxEQY6iXedXt1
payload_url
http://rgyui.top/dl/build2.exe

http://winnlinne.com/files/1/build3.exe
ransomnote
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rsa_pubkey.plain

Extracted

Family

vidar

Version

54.9

Botnet

517

C2

https://t.me/larsenup
https://ioc.exchange/@zebra54

Attributes

profile_id
517

Targets

- Target
  file.exe
- Size 270KB
- SHA256 2bd2cdd9908776fc0488ea4a914f7b2feb76581a9a61604f73353a922621a009
- MD5 99317001ebeb71fe1e5d8ef4f23ccab2
- SHA1 782c40832eb552c73f9064f19152951b687afd91
- SHA512 71358fb41e24197b85dc086b2930e1cd049e4f0786ebefa7cab64cdfea002826a633769d0b84599f4c46bd30f469a699dba787d0e35cdd58079c696454db92e3
- SSDEEP 6144:TkEB+GM0Eh2Pc9n9ooEqVFqOLqmxrwVfXS:TZEh2PebLDx
- MD5 SHA1 SHA512 SSDEEP
Score

10^/10

smokeloader backdoor trojan djvu vidar 517 collection discovery persistence ransomware spyware stealer
- Detected Djvu ransomware
- Detects Smokeloader packer
- Djvu Ransomware
  Ransomware which is a variant of the STOP family.
  ransomware djvu
- SmokeLoader
  Modular backdoor trojan in use since 2014.
  trojan backdoor smokeloader
- Vidar
  Vidar is an infostealer based on Arkei stealer.
  stealer vidar
- Downloads MZ/PE file
- Executes dropped EXE
- Checks computer location settings
  Looks up country code configured in the registry, likely geofence.
- 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 Microsoft Outlook profiles
  collection
- 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 behavioral2