General

  • Target

    9dfe54ee9902375e9cf595fa852126c86b081059a8a60237f0820dd83944cfa2

  • Size

    802KB

  • Sample

    211127-ajabmsfgcn

  • MD5

    ef94ced467c0db0c753d9523afae16ec

  • SHA1

    82ad144f68d2fe373f69cd3c0887c65b7c7c9c08

  • SHA256

    9dfe54ee9902375e9cf595fa852126c86b081059a8a60237f0820dd83944cfa2

  • SHA512

    fa7f4c90f1d6ab6969358e6b0e128d42677ceafb7b35077de58d2d8d79c0c463f33854ff47d5416c800c9a4d262b0e8efae15cf352bef52081311a8fb29b3fe1

Malware Config

Extracted

Family

djvu

C2

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

Attributes
  • extension

    .robm

  • 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: 0354gSd743d

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

      9dfe54ee9902375e9cf595fa852126c86b081059a8a60237f0820dd83944cfa2

    • Size

      802KB

    • MD5

      ef94ced467c0db0c753d9523afae16ec

    • SHA1

      82ad144f68d2fe373f69cd3c0887c65b7c7c9c08

    • SHA256

      9dfe54ee9902375e9cf595fa852126c86b081059a8a60237f0820dd83944cfa2

    • SHA512

      fa7f4c90f1d6ab6969358e6b0e128d42677ceafb7b35077de58d2d8d79c0c463f33854ff47d5416c800c9a4d262b0e8efae15cf352bef52081311a8fb29b3fe1

    • Detected Djvu ransomware

    • Djvu Ransomware

      Ransomware which is a variant of the STOP family.

    • Vidar

      Vidar is an infostealer based on Arkei stealer.

    • suricata: ET MALWARE Potential Dridex.Maldoc Minimal Executable Request

      suricata: ET MALWARE Potential Dridex.Maldoc Minimal Executable Request

    • suricata: ET MALWARE Suspicious Zipped Filename in Outbound POST Request (Passwords.txt)

      suricata: ET MALWARE Suspicious Zipped Filename in Outbound POST Request (Passwords.txt)

    • suricata: ET MALWARE Vidar/Arkei Stealer Client Data Upload

      suricata: ET MALWARE Vidar/Arkei Stealer Client Data Upload

    • suricata: ET MALWARE Vidar/Arkei/Megumin/Oski Stealer Data Exfil

      suricata: ET MALWARE Vidar/Arkei/Megumin/Oski Stealer Data Exfil

    • 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