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General

  • Target

    aff93a8e6265ae3f03f5a2faffb22b720a69e9948de001246cde0c7099ae05f8

  • Size

    778KB

  • Sample

    220906-s1kg2sfbd8

  • MD5

    4df0d4112dd43dab559098daab5a36a5

  • SHA1

    06737287c3efb54280857ed97f4888a9bf10c2d4

  • SHA256

    aff93a8e6265ae3f03f5a2faffb22b720a69e9948de001246cde0c7099ae05f8

  • SHA512

    1dfbff68cb2a9fa3cba94f204e10ef4215a102a0b71666fe9257e4c1de85bb0ed5e9f84747ac20800ea34a2ffb87ab8f3bcf13643da3302b69199be139f9bef3

  • SSDEEP

    12288:3ULzSGNblGIx3WqoGYewEXJt09SpwMdqbbVikDx0mmw5vZ7Y8j0Zi:klFUIx3YeF5amwMdqbbokTmw5pCZ

Malware Config

Extracted

Family

djvu

C2

http://acacaca.org/test3/get.php

Attributes
  • extension

    .oovb

  • offline_id

    6GXhR4uyHH9NXT2qot14T0HeNSviNKH0Q6PGVNt1

  • payload_url

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

    http://acacaca.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-6g0MALAb7E 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: 0552Jhyjd

rsa_pubkey.plain

Targets

    • Target

      aff93a8e6265ae3f03f5a2faffb22b720a69e9948de001246cde0c7099ae05f8

    • Size

      778KB

    • MD5

      4df0d4112dd43dab559098daab5a36a5

    • SHA1

      06737287c3efb54280857ed97f4888a9bf10c2d4

    • SHA256

      aff93a8e6265ae3f03f5a2faffb22b720a69e9948de001246cde0c7099ae05f8

    • SHA512

      1dfbff68cb2a9fa3cba94f204e10ef4215a102a0b71666fe9257e4c1de85bb0ed5e9f84747ac20800ea34a2ffb87ab8f3bcf13643da3302b69199be139f9bef3

    • SSDEEP

      12288:3ULzSGNblGIx3WqoGYewEXJt09SpwMdqbbVikDx0mmw5vZ7Y8j0Zi:klFUIx3YeF5amwMdqbbokTmw5pCZ

    • Detected Djvu ransomware

    • Djvu Ransomware

      Ransomware which is a variant of the STOP family.

    • 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