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General

  • Target

    c05def803b54ab55f69d58a84bca34b32db3655aad0ce89473dadf2629f4cbe5

  • Size

    726KB

  • Sample

    220920-rktkcadcg5

  • MD5

    efe367087f3280a2f42344c3ac3a2d42

  • SHA1

    f2ef832ece8d9666bf2abf15de84eef475dde57a

  • SHA256

    c05def803b54ab55f69d58a84bca34b32db3655aad0ce89473dadf2629f4cbe5

  • SHA512

    305f7540576b1d2fef53612de3dcdadd910cd7c01ef011759a9b4b84e62b9b8d21362b8a247e213cd091da400f63c0883c7f83adcfa191c48903cddf11e066f8

  • SSDEEP

    12288:arbDO5fiqPLW+katdW8OgNBKnrEIcKGlqJUGgrUzyRIemZTswHOeo:arbS5fiKL0opOgNGAIcll3GgSxpp

Malware Config

Extracted

Family

djvu

C2

http://acacaca.org/test1/get.php

Attributes
  • extension

    .mmpu

  • offline_id

    yd6oYv6aBN90yFzTWdZ34sXSXtXiauzOLXZyWht1

  • 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-xuPJqoyzQE 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: 0554Jhyjd

rsa_pubkey.plain

Targets

    • Target

      c05def803b54ab55f69d58a84bca34b32db3655aad0ce89473dadf2629f4cbe5

    • Size

      726KB

    • MD5

      efe367087f3280a2f42344c3ac3a2d42

    • SHA1

      f2ef832ece8d9666bf2abf15de84eef475dde57a

    • SHA256

      c05def803b54ab55f69d58a84bca34b32db3655aad0ce89473dadf2629f4cbe5

    • SHA512

      305f7540576b1d2fef53612de3dcdadd910cd7c01ef011759a9b4b84e62b9b8d21362b8a247e213cd091da400f63c0883c7f83adcfa191c48903cddf11e066f8

    • SSDEEP

      12288:arbDO5fiqPLW+katdW8OgNBKnrEIcKGlqJUGgrUzyRIemZTswHOeo:arbS5fiKL0opOgNGAIcll3GgSxpp

    • 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