djvu | 83085fc25b2349c15f8af67c84b36a707edc7abaaf63ca41046d014505398339

General

Target
83085fc25b2349c15f8af67c84b36a707edc7abaaf63ca41046d014505398339
Size 747KB
Sample221019-3l63lsdca7
SHA256 83085fc25b2349c15f8af67c84b36a707edc7abaaf63ca41046d014505398339
MD5 0f98265d37abd75eb929d95554fdcde5
SHA1 19c351546115137e9fe052aa0ffc0a498fd5d3c2
SHA512 5dc6ac1149e93555af84e4e951793de359cff48b81b556e183120f02353b9dbd9527332735882250a42ee19c3ef9302de7a89b98612977267326c57e200d1445
SSDEEP 12288:mGM9ghmgVwUuFcBBPxKc3z34Uu9muGzTeQTU+iKpIMUyGacZ3Y0Bb5E/v9xIp3kq:mBe3VwUuFcBTKuTUGz7BpIwGacZ3YseS
MD5 SHA1 SHA512 SSDEEP

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

55.1

Botnet

517

C2

https://t.me/tg_privatetalk
https://nerdculture.de/@yixehi33

Attributes

profile_id
517

Targets

- Target
  83085fc25b2349c15f8af67c84b36a707edc7abaaf63ca41046d014505398339
- Size 747KB
- SHA256 83085fc25b2349c15f8af67c84b36a707edc7abaaf63ca41046d014505398339
- MD5 0f98265d37abd75eb929d95554fdcde5
- SHA1 19c351546115137e9fe052aa0ffc0a498fd5d3c2
- SHA512 5dc6ac1149e93555af84e4e951793de359cff48b81b556e183120f02353b9dbd9527332735882250a42ee19c3ef9302de7a89b98612977267326c57e200d1445
- SSDEEP 12288:mGM9ghmgVwUuFcBBPxKc3z34Uu9muGzTeQTU+iKpIMUyGacZ3Y0Bb5E/v9xIp3kq:mBe3VwUuFcBTKuTUGz7BpIwGacZ3YseS
- MD5 SHA1 SHA512 SSDEEP
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