General

  • Target

    e8a04251ecbc3bbb345b16f96a1c3988bdc86a887d6c1682458bf73ae52977fb

  • Size

    668KB

  • Sample

    221019-3f3g8schg2

  • MD5

    28310af722e92dbbef506db81aeb057b

  • SHA1

    b40d069d9d9704b899c18d2d70092f8f4c4f5b3a

  • SHA256

    a09043cc1371e99f23bec0498bfd2df6799ee02749a2b4a278e388dcfd484d6e

  • SHA512

    1440f6f8b563788abfad2d9176962d3d9559f564eca3232833a34daae26d0a9c36fadb9ac25459865167578a6202d54c50f6af2ffc45c4667a9e13b7e4ab86d5

  • SSDEEP

    12288:Lthq+ggAiV1YXbaRMvKeq7hmSnPpNLEAKv0ovdHekbN:Lrq+lpVqXbEUKuSnB1EAK8O+kx

Malware Config

Extracted

Family

djvu

C2

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

Attributes
  • extension

    .tuis

  • offline_id

    Uz66zEbmA32arcxwT81zZhkb23026oHz5iSp8qt1

  • payload_url

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

    http://winnlinne.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-o7UXxOstmw 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: 0582Jhyjd

rsa_pubkey.plain

Extracted

Family

vidar

Version

55.1

Botnet

517

C2

https://t.me/tg_privatetalk

https://nerdculture.de/@yixehi33

Attributes
  • profile_id

    517

Targets

    • Target

      e8a04251ecbc3bbb345b16f96a1c3988bdc86a887d6c1682458bf73ae52977fb

    • Size

      748KB

    • MD5

      5a99d0c9ae8116b3a4bd4bf1684abf82

    • SHA1

      405829b839fd64ba92e37eec719f593aced68634

    • SHA256

      e8a04251ecbc3bbb345b16f96a1c3988bdc86a887d6c1682458bf73ae52977fb

    • SHA512

      6ba4025c8948bbb452b9cc8f8bead5234aa3fdb13313f257fec7ddc5f8facee50079737d7ce5324ae98fb2347b2aed6d0a424eff17d337bc4813ac455f84db27

    • SSDEEP

      12288:bw9ZX6kSyLciV1GXrcNMvgeu/hYsrPpNBqAMv0edd17:bUYy5VsXrAUgusrBPqAM8Ux

    • 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 Enterprise v6

Tasks