General

  • Target

    8e6ac7d17a31abf450dda741a65bef6ab53462954607b458c91bd3006740923d.zip

  • Size

    723KB

  • Sample

    220917-j9vvpshdh4

  • MD5

    d99542f80a8af045447ad2dfe2ce3c76

  • SHA1

    dc8eef7371ba9f773249852bd2a0ad10b2d74037

  • SHA256

    b57ca5f02071e18577f753660484a394b4a63186576e0348e56f6d95b7b6f2d2

  • SHA512

    309d8edcb11bdd589f9eb03b5501afcc56dcf65b79e10f862141663a63e02a2949e400b8d7b28c4d198cc093fcd1a0aac9fbdd68dbaebb00f1e4858bc2bd1759

  • SSDEEP

    12288:/KSt1D9vL8EJIBVdWeVDDKViw+kCgWlSxUiXwS0YMAZZNk0KRrfK4N:/BhjHJ+vWek+kCBFxZAQ0KRWe

Malware Config

Extracted

Family

djvu

C2

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

Attributes
  • extension

    .aawt

  • offline_id

    MyudhIExJux2oRQXw95TT1oAPu7mvqRMzxr1eet1

  • 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-4Xcf4IX21n 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: 0562Jhyjd

rsa_pubkey.plain

Targets

    • Target

      8e6ac7d17a31abf450dda741a65bef6ab53462954607b458c91bd3006740923d.exe

    • Size

      820KB

    • MD5

      c4967a7c3dbbd5ef935c0107222c8595

    • SHA1

      c680d5bb7eef9d21d63f77728f8e164d486b6cb0

    • SHA256

      8e6ac7d17a31abf450dda741a65bef6ab53462954607b458c91bd3006740923d

    • SHA512

      406af4dfab24c1f9c0725dab6b692c2600f0d2b75b1f5a219427495e0f8513d03af663ba468ce4cd96803face4692a8876eae331688cdd8d9bb5efcbfe796f04

    • SSDEEP

      12288:Vb8IWTR2ndRD9wFYnPAdBcW/xnVr87w14XcFvjFFYqSYBMgmi:V9sAv2uIo2hVGG3FfYjY+gmi

    • Detected Djvu ransomware

    • Djvu Ransomware

      Ransomware which is a variant of the STOP family.

    • 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