djvu | c31cb33f67e04ff078ee95c6cb6c3c17a346e388796bbb5674d64d505ff0679f

General

Target

c31cb33f67e04ff078ee95c6cb6c3c17a346e388796bbb5674d64d505ff0679f
Size

791KB
Sample

221005-ykppqafdd4
MD5

6243472618e02247b39ca9ad3586aece
SHA1

59b9bd0f1bd0b0bae6f08761ff6e82b431037c9a
SHA256

c31cb33f67e04ff078ee95c6cb6c3c17a346e388796bbb5674d64d505ff0679f
SHA512

5e3c6565be82b02cce586ca70fbf3f5dc55bbd1edf6e1063bf44d2696c6f29a6068c0dad010d9992cad19e37331fdd481ce7a389d00156b95ed29ef359070a74
SSDEEP

12288:2X9Fv9ceGPqUF9gCnqCPLbCjIHmPxc+bIO1LeMEaV6ptgzfTJaunnn3woIY3:2t1GX9dq8WMGPrbIO0iV6kzfj34W

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
  
  c31cb33f67e04ff078ee95c6cb6c3c17a346e388796bbb5674d64d505ff0679f
- Size
  
  791KB
- MD5
  
  6243472618e02247b39ca9ad3586aece
- SHA1
  
  59b9bd0f1bd0b0bae6f08761ff6e82b431037c9a
- SHA256
  
  c31cb33f67e04ff078ee95c6cb6c3c17a346e388796bbb5674d64d505ff0679f
- SHA512
  
  5e3c6565be82b02cce586ca70fbf3f5dc55bbd1edf6e1063bf44d2696c6f29a6068c0dad010d9992cad19e37331fdd481ce7a389d00156b95ed29ef359070a74
- SSDEEP
  
  12288:2X9Fv9ceGPqUF9gCnqCPLbCjIHmPxc+bIO1LeMEaV6ptgzfTJaunnn3woIY3:2t1GX9dq8WMGPrbIO0iV6kzfj34W
Score

10^/10

djvu vidar 517 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
- 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