djvu | 852f91cac18408561d90798e615f9b3f48e5480cfd29f119eae01f3c7b72c667

General

Target

852f91cac18408561d90798e615f9b3f48e5480cfd29f119eae01f3c7b72c667
Size

790KB
Sample

221008-2v4heafhe8
MD5

2c651acbd30133e91cc7cb91229065cf
SHA1

55c563f6cc974ef5471ff30c453ca32bbb5a2dd7
SHA256

852f91cac18408561d90798e615f9b3f48e5480cfd29f119eae01f3c7b72c667
SHA512

7ee39dc5b0d26924681846242c0439c18de44169932ef93105df1bbf2fe04adb763edddcaf1591fe234e494a69da5f5dee45e8eedc0237edbbf116b5f0f7ae22
SSDEEP

12288:viRn4/pvD+Qjtu4NSDyfzKjZq33Blzb1U4Hhs7JbW9jospGR66L:vOn4/liOrN5fWc3BlW4cW97Q9

Score

10^/10

Malware Config

Extracted

Family

djvu

C2

http://winnlinne.com/test1/get.php

Attributes

extension
.tohj
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
  
  852f91cac18408561d90798e615f9b3f48e5480cfd29f119eae01f3c7b72c667
- Size
  
  790KB
- MD5
  
  2c651acbd30133e91cc7cb91229065cf
- SHA1
  
  55c563f6cc974ef5471ff30c453ca32bbb5a2dd7
- SHA256
  
  852f91cac18408561d90798e615f9b3f48e5480cfd29f119eae01f3c7b72c667
- SHA512
  
  7ee39dc5b0d26924681846242c0439c18de44169932ef93105df1bbf2fe04adb763edddcaf1591fe234e494a69da5f5dee45e8eedc0237edbbf116b5f0f7ae22
- SSDEEP
  
  12288:viRn4/pvD+Qjtu4NSDyfzKjZq33Blzb1U4Hhs7JbW9jospGR66L:vOn4/liOrN5fWc3BlW4cW97Q9
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