General

  • Target

    bf83f801af254a6a762da872cb9215faf239d9d74aeb5850e5b63c114641f830

  • Size

    846KB

  • Sample

    211128-1zppdadgb8

  • MD5

    5c1234ef1a3a6b597aaa09b7cf18d0f5

  • SHA1

    0366a5d4e4ed47bca7374194bbb813b68cfe1bfa

  • SHA256

    bf83f801af254a6a762da872cb9215faf239d9d74aeb5850e5b63c114641f830

  • SHA512

    3e00e10e7de5df5215300ff0ed2a8fb76987bee384dc132e2d877d1162b6f16c849811c7a8ed5bafad4f974fa528ebdf610faa2710707e8339cdce80c9a6f05b

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: [email protected] Reserve e-mail address to contact us: [email protected] 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

      bf83f801af254a6a762da872cb9215faf239d9d74aeb5850e5b63c114641f830

    • Size

      846KB

    • MD5

      5c1234ef1a3a6b597aaa09b7cf18d0f5

    • SHA1

      0366a5d4e4ed47bca7374194bbb813b68cfe1bfa

    • SHA256

      bf83f801af254a6a762da872cb9215faf239d9d74aeb5850e5b63c114641f830

    • SHA512

      3e00e10e7de5df5215300ff0ed2a8fb76987bee384dc132e2d877d1162b6f16c849811c7a8ed5bafad4f974fa528ebdf610faa2710707e8339cdce80c9a6f05b

    • 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 Enterprise v6

Tasks