General

  • Target

    d216c65bb6d5191fa64980421b8e2a2b9e541b2bffa81a4901a54d42bd544000

  • Size

    830KB

  • Sample

    211128-mbq1msccb8

  • MD5

    fccbea6215d6893bb54f0dd401fe2b40

  • SHA1

    a21a66bf20b4c1abbbc89e417d718dfd07abb5bb

  • SHA256

    d216c65bb6d5191fa64980421b8e2a2b9e541b2bffa81a4901a54d42bd544000

  • SHA512

    e77f478927806948a1cb2fdb07f8c5e7993dff5a32e90dddbd78b79032aa77b4cd414ccb0394ad7bc42667d35bfd11893039f336b6a2d97755f7dfb52fe011cd

Malware Config

Extracted

Family

djvu

C2

http://tzgl.org/fhsgtsspen6/get.php

Attributes
  • extension

    .rigj

  • offline_id

    Z5GGASEfY71jtxU3i3E8kzvrTJmY9oiZkjcSm0t1

  • payload_url

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

    http://tzgl.org/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-Tjb0YqckGX 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: manager@mailtemp.ch Reserve e-mail address to contact us: helprestoremanager@airmail.cc Your personal ID: 0353gSd743d

rsa_pubkey.plain

Extracted

Family

vidar

Version

48.7

Botnet

517

C2

https://mstdn.social/@anapa

https://mastodon.social/@mniami

Attributes
  • profile_id

    517

Targets

    • Target

      d216c65bb6d5191fa64980421b8e2a2b9e541b2bffa81a4901a54d42bd544000

    • Size

      830KB

    • MD5

      fccbea6215d6893bb54f0dd401fe2b40

    • SHA1

      a21a66bf20b4c1abbbc89e417d718dfd07abb5bb

    • SHA256

      d216c65bb6d5191fa64980421b8e2a2b9e541b2bffa81a4901a54d42bd544000

    • SHA512

      e77f478927806948a1cb2fdb07f8c5e7993dff5a32e90dddbd78b79032aa77b4cd414ccb0394ad7bc42667d35bfd11893039f336b6a2d97755f7dfb52fe011cd

    • Detected Djvu ransomware

    • Djvu Ransomware

      Ransomware which is a variant of the STOP family.

    • Vidar

      Vidar is an infostealer based on Arkei stealer.

    • Vidar Stealer

    • Downloads MZ/PE file

    • 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 v6

Persistence

Registry Run Keys / Startup Folder

1
T1060

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

2
T1012

System Information Discovery

2
T1082

Collection

Data from Local System

3
T1005

Tasks