General

  • Target

    011cf894f9e64f4e3307867cdbd1b9b3a073f04f460ca22e5296179cc9df926d

  • Size

    766KB

  • Sample

    230731-pw444sfe25

  • MD5

    e2bd4ef1fa9f1b5277e8a4a29b74cce0

  • SHA1

    0d9bef8e5398af1a774728bb1e325356dcd631d5

  • SHA256

    011cf894f9e64f4e3307867cdbd1b9b3a073f04f460ca22e5296179cc9df926d

  • SHA512

    5d0b90b6a76808ee63d1dda21b5f4b8d3de9b0c136d0f1c1c258c15a5f2dbe4c2f09d39d9d650d0909b121a1ed7ac15a0d6d7f8bcf5419d186524a4209868f88

  • SSDEEP

    12288:4myAhJoEzJzfpkACcFM9V4LGQPW+hQV4XGHtuQJ9izbfpdO14fZBjm:4myA/zJzf/dFprjmApI+bf7euBjm

Malware Config

Extracted

Family

djvu

C2

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

Attributes
  • extension

    .poaz

  • offline_id

    Cr1qw6x3Gr36kVHAZvrjTBFecy9ksVLEfrUGCjt1

  • payload_url

    http://colisumy.com/dl/build2.exe

    http://zexeq.com/files/1/build3.exe

  • ransomnote

    ATTENTION! Don't worry, you can return all your files! All your files like pictures, databases, documents and other important are encrypted with strongest encryption and unique key. The only method of recovering files is to purchase decrypt tool and unique key for you. This software will decrypt all your encrypted files. What guarantees you have? You can send one of your encrypted file from your PC and we decrypt it for free. But we can decrypt only 1 file for free. File must not contain valuable information. You can get and look video overview decrypt tool: https://we.tl/t-MDnNtxiPM0 Price of private key and decrypt software is $980. Discount 50% available if you contact us first 72 hours, that's price for you is $490. Please note that you'll never restore your data without payment. Check your e-mail "Spam" or "Junk" folder if you don't get answer more than 6 hours. To get this software you need write on our e-mail: support@freshmail.top Reserve e-mail address to contact us: datarestorehelp@airmail.cc Your personal ID: 0753JOsie

rsa_pubkey.plain

Extracted

Family

vidar

Version

4.9

Botnet

https://t.me/dastantim

C2

https://t.me/dastantim

https://steamcommunity.com/profiles/76561199529242058

Attributes
  • profile_id_v2

    https://t.me/dastantim

  • user_agent

    Mozilla/5.0 (X11; Linux i686) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/90.0.4430.93 Safari/537.36 Vivaldi/3.7

Targets

    • Target

      011cf894f9e64f4e3307867cdbd1b9b3a073f04f460ca22e5296179cc9df926d

    • Size

      766KB

    • MD5

      e2bd4ef1fa9f1b5277e8a4a29b74cce0

    • SHA1

      0d9bef8e5398af1a774728bb1e325356dcd631d5

    • SHA256

      011cf894f9e64f4e3307867cdbd1b9b3a073f04f460ca22e5296179cc9df926d

    • SHA512

      5d0b90b6a76808ee63d1dda21b5f4b8d3de9b0c136d0f1c1c258c15a5f2dbe4c2f09d39d9d650d0909b121a1ed7ac15a0d6d7f8bcf5419d186524a4209868f88

    • SSDEEP

      12288:4myAhJoEzJzfpkACcFM9V4LGQPW+hQV4XGHtuQJ9izbfpdO14fZBjm:4myA/zJzf/dFprjmApI+bf7euBjm

    • Detected Djvu ransomware

    • Djvu Ransomware

      Ransomware which is a variant of the STOP family.

    • Vidar

      Vidar is an infostealer based on Arkei stealer.

    • Downloads MZ/PE file

    • Checks computer location settings

      Looks up country code configured in the registry, likely geofence.

    • Executes dropped EXE

    • Loads dropped DLL

    • Modifies file permissions

    • Reads user/profile data of web browsers

      Infostealers often target stored browser data, which can include saved credentials etc.

    • Accesses 2FA software files, possible credential harvesting

    • Accesses cryptocurrency files/wallets, possible credential harvesting

    • Adds Run key to start application

    • Checks installed software on the system

      Looks up Uninstall key entries in the registry to enumerate software on the system.

    • 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

MITRE ATT&CK Matrix ATT&CK v13

Execution

Scheduled Task/Job

1
T1053

Persistence

Boot or Logon Autostart Execution

1
T1547

Registry Run Keys / Startup Folder

1
T1547.001

Scheduled Task/Job

1
T1053

Privilege Escalation

Boot or Logon Autostart Execution

1
T1547

Registry Run Keys / Startup Folder

1
T1547.001

Scheduled Task/Job

1
T1053

Defense Evasion

File and Directory Permissions Modification

1
T1222

Modify Registry

1
T1112

Credential Access

Unsecured Credentials

3
T1552

Credentials In Files

3
T1552.001

Discovery

Query Registry

3
T1012

System Information Discovery

3
T1082

Collection

Data from Local System

3
T1005

Tasks