General

  • Target

    buildz.exe

  • Size

    820KB

  • Sample

    240621-r81cssvbmc

  • MD5

    2ec07fb2b4b8511cc61beab303b67f2e

  • SHA1

    d6709a93d5d92e978c49fba1744b4707937c2cb8

  • SHA256

    b005b4efdf934a10fe8c0db13792ebd4f98eac1a92cea6ff45515f8b07684aec

  • SHA512

    55d6ed9faf60c787561d29088288fca23cc23a18758940f351ee750f036f81e7041101f5a78f362a085e89898f8f312f9df558eeca406abb152db57defcd384e

  • SSDEEP

    24576:2hpkfViWtBiEDDtrsd23ejJX5fMzhSOparLO:2EVbiEDYKejfoh1par

Malware Config

Extracted

Family

djvu

C2

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

Attributes
  • extension

    .watz

  • offline_id

    Lc3VTezPWbMhuVAQFzJUdeA68PwI7UDpc5aKHYt1

  • payload_url
  • 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. Do not ask assistants from youtube and recovery data sites for help in recovering your data. They can use your free decryption quota and scam you. Our contact is emails in this text document only. You can get and look video overview decrypt tool: https://wetransfer.com/downloads/abe121434ad837dd5bdd03878a14485820240531135509/34284d Price of private key and decrypt software is $999. Discount 50% available if you contact us first 72 hours, that's price for you is $499. 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: 0874PsawqS

rsa_pubkey.plain

Targets

    • Target

      buildz.exe

    • Size

      820KB

    • MD5

      2ec07fb2b4b8511cc61beab303b67f2e

    • SHA1

      d6709a93d5d92e978c49fba1744b4707937c2cb8

    • SHA256

      b005b4efdf934a10fe8c0db13792ebd4f98eac1a92cea6ff45515f8b07684aec

    • SHA512

      55d6ed9faf60c787561d29088288fca23cc23a18758940f351ee750f036f81e7041101f5a78f362a085e89898f8f312f9df558eeca406abb152db57defcd384e

    • SSDEEP

      24576:2hpkfViWtBiEDDtrsd23ejJX5fMzhSOparLO:2EVbiEDYKejfoh1par

    • Detected Djvu ransomware

    • Djvu Ransomware

      Ransomware which is a variant of the STOP family.

    • Modifies file permissions

    • Adds Run key to start application

    • 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 Matrix ATT&CK v13

Persistence

Boot or Logon Autostart Execution

1
T1547

Registry Run Keys / Startup Folder

1
T1547.001

Privilege Escalation

Boot or Logon Autostart Execution

1
T1547

Registry Run Keys / Startup Folder

1
T1547.001

Defense Evasion

File and Directory Permissions Modification

1
T1222

Modify Registry

1
T1112

Discovery

System Information Discovery

1
T1082

Tasks