djvu | 2641d2cb529adc5ee875991b12d2f2a9f5f53057f27b150ba21793b87adb0561

General

Target

file.exe
Size

146KB
Sample

221006-fnjnrsgfdp
MD5

5ddf78cb19d50cbe4840bf682afdb048
SHA1

99d437259e89b8298eebf496a98c66f6111f9940
SHA256

2641d2cb529adc5ee875991b12d2f2a9f5f53057f27b150ba21793b87adb0561
SHA512

bf6fe0f2acf45a18c55ac8a55a555939d80df02cb55d42a256c637be934e05693ad840981812cf272cd66e1310d72494e3b423f8b6a2e7cfd956145a6113768a
SSDEEP

3072:eIhQFO++f74fiLs4juL6X0bW7k5EPKbxtO:Z2Y74T4ju2X17k5E2t

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.exe
- Size
  
  146KB
- MD5
  
  5ddf78cb19d50cbe4840bf682afdb048
- SHA1
  
  99d437259e89b8298eebf496a98c66f6111f9940
- SHA256
  
  2641d2cb529adc5ee875991b12d2f2a9f5f53057f27b150ba21793b87adb0561
- SHA512
  
  bf6fe0f2acf45a18c55ac8a55a555939d80df02cb55d42a256c637be934e05693ad840981812cf272cd66e1310d72494e3b423f8b6a2e7cfd956145a6113768a
- SSDEEP
  
  3072:eIhQFO++f74fiLs4juL6X0bW7k5EPKbxtO:Z2Y74T4ju2X17k5E2t
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
- Legitimate hosting services abused for malware hosting/C2
- 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