djvu | 6f255f17e97cfc05c63f1f1081c390b701363c0d81af1d113914f5667fddd709

General

Target

6f255f17e97cfc05c63f1f1081c390b701363c0d81af1d113914f5667fddd709
Size

736KB
Sample

221017-lbcycabdb2
MD5

01a5e8a5f214fdc0765ca2fe8d01d8a2
SHA1

828312326a59f9f9a1f8053b37ce0484f4aacc38
SHA256

6f255f17e97cfc05c63f1f1081c390b701363c0d81af1d113914f5667fddd709
SHA512

25da53915061150334ae64d86b5019125a332ca6647881b6089e5a95213d10085cf9bc8d8933b3a50caa6ab1d2c3f84107d9043738ddbcfa9835316b0e338b60
SSDEEP

12288:pV0QzR6huCbWor+CZ3/hoBC8xxM/yPUNNaXykiT5uAvXccm/34ks0:pm2YuCSo+C4BCdyiAX20Au/l

Score

10^/10

Malware Config

Extracted

Family

djvu

C2

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

Attributes

extension
.tuis
offline_id
Uz66zEbmA32arcxwT81zZhkb23026oHz5iSp8qt1
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

55

Botnet

517

C2

https://t.me/truewallets

https://mas.to/@zara99

http://116.203.10.3:80

Attributes

profile_id
517

Targets

- Target
  
  6f255f17e97cfc05c63f1f1081c390b701363c0d81af1d113914f5667fddd709
- Size
  
  736KB
- MD5
  
  01a5e8a5f214fdc0765ca2fe8d01d8a2
- SHA1
  
  828312326a59f9f9a1f8053b37ce0484f4aacc38
- SHA256
  
  6f255f17e97cfc05c63f1f1081c390b701363c0d81af1d113914f5667fddd709
- SHA512
  
  25da53915061150334ae64d86b5019125a332ca6647881b6089e5a95213d10085cf9bc8d8933b3a50caa6ab1d2c3f84107d9043738ddbcfa9835316b0e338b60
- SSDEEP
  
  12288:pV0QzR6huCbWor+CZ3/hoBC8xxM/yPUNNaXykiT5uAvXccm/34ks0:pm2YuCSo+C4BCdyiAX20Au/l
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
- 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 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