General

  • Target

    5813583d3199620c8d84ff421d4e194ce7d071d20c6e9415d5e5a497f43f81fc

  • Size

    807KB

  • Sample

    240523-fp197sef47

  • MD5

    399bb1e98a2ada417527f09080839484

  • SHA1

    3d460c78d4bcf996b40ebc6deab57aa2027065f3

  • SHA256

    5813583d3199620c8d84ff421d4e194ce7d071d20c6e9415d5e5a497f43f81fc

  • SHA512

    b0727a92616b9cf7b3e9e7352216c78285371d716d2d269d6cabe6648e0aa03bf5a51899635892cd4966aa7d4da2b28862aaba71d45745a5ed384e8aaa87d875

  • SSDEEP

    12288:SIYr4sorDGk8GwzeZcs94Swf4L3Dj0/ykitHd6hhEMiJlp:nYr4sVkHiWnIAtHkhEMiB

Malware Config

Extracted

Family

djvu

C2

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

Attributes
  • extension

    .vepi

  • offline_id

    EGfa5svnSGFJka7LZBQoqff0QtO1IpTauoDvGvt1

  • payload_url

    http://sdfjhuz.com/dl/build2.exe

    http://cajgtus.com/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. 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/33b490a613f49fa190924f199d2c079e20240512191214/caaf73 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: 0871PsawqS

rsa_pubkey.plain

Targets

    • Target

      5813583d3199620c8d84ff421d4e194ce7d071d20c6e9415d5e5a497f43f81fc

    • Size

      807KB

    • MD5

      399bb1e98a2ada417527f09080839484

    • SHA1

      3d460c78d4bcf996b40ebc6deab57aa2027065f3

    • SHA256

      5813583d3199620c8d84ff421d4e194ce7d071d20c6e9415d5e5a497f43f81fc

    • SHA512

      b0727a92616b9cf7b3e9e7352216c78285371d716d2d269d6cabe6648e0aa03bf5a51899635892cd4966aa7d4da2b28862aaba71d45745a5ed384e8aaa87d875

    • SSDEEP

      12288:SIYr4sorDGk8GwzeZcs94Swf4L3Dj0/ykitHd6hhEMiJlp:nYr4sVkHiWnIAtHkhEMiB

    • Detected Djvu ransomware

    • Djvu Ransomware

      Ransomware which is a variant of the STOP family.

    • Checks computer location settings

      Looks up country code configured in the registry, likely geofence.

    • 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

Query Registry

1
T1012

System Information Discovery

2
T1082

Tasks