djvu | 18d91732f4adcbec34257768c1f6195c78c91a2dac3880e3fac4063fd713df33

General

Target

file
Size

280KB
Sample

221005-thn8ysfafr
MD5

bff503746b3152016b17bb3062ab9a8a
SHA1

f15e9b16d52548a03361de7320b2c42f085ae332
SHA256

18d91732f4adcbec34257768c1f6195c78c91a2dac3880e3fac4063fd713df33
SHA512

06d3400068b908a4e0cb17712e290c8797e102020876017f309510cddb103f2e03fecab44196f3efd77f3e0e6170e210b001bc62a2b07f9cc4fe9c89d6c3ca66
SSDEEP

6144:ghfK6LL3nFDHe+viSn2yJOuzbgwumZwVfU:gNK6H3nFze0J2Junn9P

Score

10^/10

Malware Config

Extracted

Family

djvu

C2

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

Attributes

extension
.adww
offline_id
z8lhl4oForVEc7gy9Ra8rSqjYMl3xiFRuIW4not1
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
- Size
  
  280KB
- MD5
  
  bff503746b3152016b17bb3062ab9a8a
- SHA1
  
  f15e9b16d52548a03361de7320b2c42f085ae332
- SHA256
  
  18d91732f4adcbec34257768c1f6195c78c91a2dac3880e3fac4063fd713df33
- SHA512
  
  06d3400068b908a4e0cb17712e290c8797e102020876017f309510cddb103f2e03fecab44196f3efd77f3e0e6170e210b001bc62a2b07f9cc4fe9c89d6c3ca66
- SSDEEP
  
  6144:ghfK6LL3nFDHe+viSn2yJOuzbgwumZwVfU:gNK6H3nFze0J2Junn9P
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