General

  • Target

    cb0567590c710f7eba3c49de82300d1fa12d5ac88d9e433e7836ff37a1341ca6

  • Size

    701KB

  • Sample

    221230-b1cc1aef86

  • MD5

    b0cbfa94ca0eb6f5034f63003f27463c

  • SHA1

    1f5eaccafdc4e78231f27cc252c7f6e5d4e512fc

  • SHA256

    0526098a63c63d527c2f50b371b5092471ebe78067930b918208fe05cddb7a74

  • SHA512

    10c97ffc313be057384ab5d3c7418ba16a5befad2484253dc7c7b3adb49e23e3c2f0ca8a1375d956a7bf2daff31bfb05102692328af77360b366470ba5800daf

  • SSDEEP

    12288:FAKNaRan+3sTHgHKzomcXiCpCsfYnuEkTM2qoK3Wc0CdeBd/j:FQY+3U4QfadYn3kjqoK3Wc0CmL

Malware Config

Extracted

Family

djvu

C2

http://ex3mall.com/test1/get.php

Attributes
  • extension

    .znsm

  • offline_id

    bE95c2N1x4fARf4W3qmFCjkKPwfFkQaU9NpNBMt1

  • payload_url

    http://uaery.top/dl/build2.exe

    http://ex3mall.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-OKSOfVy04R 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: 0623Sduef

rsa_pubkey.plain

Extracted

Family

vidar

Version

1.7

Botnet

19

C2

https://t.me/robloxblackl

https://steamcommunity.com/profiles/76561199458928097

Attributes
  • profile_id

    19

Targets

    • Target

      cb0567590c710f7eba3c49de82300d1fa12d5ac88d9e433e7836ff37a1341ca6

    • Size

      807KB

    • MD5

      50da2529025604e6a78c06a73a43e1ac

    • SHA1

      db1494110bf45a6ad396378a413a37ba34a30521

    • SHA256

      cb0567590c710f7eba3c49de82300d1fa12d5ac88d9e433e7836ff37a1341ca6

    • SHA512

      8c2652872a68cde59355fa593b4aea494692a42fea6015d9b4a85796811e55bd1f5e3f0b32754e89e5aefb3556669d635dbaf71de215dd163c35960dc8698e5c

    • SSDEEP

      12288:ZoJC2RunI3sjjEL8zAmIXwCpWsfYni4kTMsqoKlWc09k4BjdYU:M0I36ayDapYndkDqoKlWc09k4BBY

    • 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

    • Executes dropped EXE

    • Checks computer location settings

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

    • 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 v6

Execution

Scheduled Task

1
T1053

Persistence

Registry Run Keys / Startup Folder

1
T1060

Scheduled Task

1
T1053

Privilege Escalation

Scheduled Task

1
T1053

Defense Evasion

File Permissions Modification

1
T1222

Modify Registry

2
T1112

Install Root Certificate

1
T1130

Credential Access

Credentials in Files

3
T1081

Discovery

Query Registry

3
T1012

System Information Discovery

3
T1082

Collection

Data from Local System

3
T1005

Tasks