General

  • Target

    3d709c645802d085547621ad6756cf4768a1d1a0a2ed0d0bd816ed1ced31f877

  • Size

    852KB

  • Sample

    220920-rd8exsdbg7

  • MD5

    e791bb4bb97903c8bc6852d3de7632f8

  • SHA1

    a7aefd96ea7eefc54fbf559176abcac4d0d88833

  • SHA256

    3d709c645802d085547621ad6756cf4768a1d1a0a2ed0d0bd816ed1ced31f877

  • SHA512

    30f040b16c16b3ea45073238baddbc8569e1bcc2bfdce9dbb0d67d893665f11315b8868c68d6644d2974ba20fbd8963b0d0c7de9f0619d9afb5f708bb8acf141

  • SSDEEP

    24576:P7jcgVBMe/o0FL9BmsLAUhoQyZ0ctUbyRfV3xH2LtS:P7jcgV6+YUaectUbs9352g

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

      3d709c645802d085547621ad6756cf4768a1d1a0a2ed0d0bd816ed1ced31f877

    • Size

      852KB

    • MD5

      e791bb4bb97903c8bc6852d3de7632f8

    • SHA1

      a7aefd96ea7eefc54fbf559176abcac4d0d88833

    • SHA256

      3d709c645802d085547621ad6756cf4768a1d1a0a2ed0d0bd816ed1ced31f877

    • SHA512

      30f040b16c16b3ea45073238baddbc8569e1bcc2bfdce9dbb0d67d893665f11315b8868c68d6644d2974ba20fbd8963b0d0c7de9f0619d9afb5f708bb8acf141

    • SSDEEP

      24576:P7jcgVBMe/o0FL9BmsLAUhoQyZ0ctUbyRfV3xH2LtS:P7jcgV6+YUaectUbs9352g

    • 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