djvu | 4f2ec334a4a758a956936489082423b03d7053d4026705fb325447ef857c3557

General

Target

4f2ec334a4a758a956936489082423b03d7053d4026705fb325447ef857c3557
Size

146KB
Sample

221006-ekth5agefk
MD5

cd04692eb2df69eb2b87a56de3ca6c6d
SHA1

b23728ed4296bbb9d77050e61049619a6411226f
SHA256

4f2ec334a4a758a956936489082423b03d7053d4026705fb325447ef857c3557
SHA512

7a145fcd614e0e4ed013fc38663ba55a98983200ef84ec29e6f78a8b71da0e8528e7612e22e70d302f2bc6d543a1ea9a6f1f4c9da8d57be56d0e28393fafa58f
SSDEEP

3072:Jf5LUshfGmDQVNJ/39wUgn8KBpWw7FesBbO:pWouz/390n8KrFesl

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
  
  4f2ec334a4a758a956936489082423b03d7053d4026705fb325447ef857c3557
- Size
  
  146KB
- MD5
  
  cd04692eb2df69eb2b87a56de3ca6c6d
- SHA1
  
  b23728ed4296bbb9d77050e61049619a6411226f
- SHA256
  
  4f2ec334a4a758a956936489082423b03d7053d4026705fb325447ef857c3557
- SHA512
  
  7a145fcd614e0e4ed013fc38663ba55a98983200ef84ec29e6f78a8b71da0e8528e7612e22e70d302f2bc6d543a1ea9a6f1f4c9da8d57be56d0e28393fafa58f
- SSDEEP
  
  3072:Jf5LUshfGmDQVNJ/39wUgn8KBpWw7FesBbO:pWouz/390n8KrFesl
Score

10^/10

djvu smokeloader vidar 517 backdoor collection discovery persistence ransomware spyware stealer trojan
- 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
- Deletes itself
- 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