General

  • Target

    3305121c4ea7d965c7072e7de0a2d1cf9a6475967a008df9d7a38b3796bb767c

  • Size

    710KB

  • Sample

    240522-yt5sasee91

  • MD5

    25175281f6e6037cc3bc9f8afaaa77e9

  • SHA1

    886350f89c88cd41df8605a1e1c75193f93b8965

  • SHA256

    3305121c4ea7d965c7072e7de0a2d1cf9a6475967a008df9d7a38b3796bb767c

  • SHA512

    29993e63d4029d0185f6bd03e17a4b1e4ee1df024f58a7e6e7b7d49edb81882f6ce6b0d796d40028174f2f5d700a66d6dcbb1c13cf5d62ecffb1fda6b7e6eb4e

  • SSDEEP

    12288:1OZuzQX0lxciFv3CgvfmdZTTHdMSdppymPE5zZcBqkaC0ziaWWoOsX:1OAzPQ6vCgvfeZThMSQCszgqDC0zI/OU

Malware Config

Extracted

Family

djvu

C2

http://cajgtus.com/test2/get.php

Attributes
  • extension

    .vehu

  • 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: 0872PsawqS

rsa_pubkey.plain

Targets

    • Target

      3305121c4ea7d965c7072e7de0a2d1cf9a6475967a008df9d7a38b3796bb767c

    • Size

      710KB

    • MD5

      25175281f6e6037cc3bc9f8afaaa77e9

    • SHA1

      886350f89c88cd41df8605a1e1c75193f93b8965

    • SHA256

      3305121c4ea7d965c7072e7de0a2d1cf9a6475967a008df9d7a38b3796bb767c

    • SHA512

      29993e63d4029d0185f6bd03e17a4b1e4ee1df024f58a7e6e7b7d49edb81882f6ce6b0d796d40028174f2f5d700a66d6dcbb1c13cf5d62ecffb1fda6b7e6eb4e

    • SSDEEP

      12288:1OZuzQX0lxciFv3CgvfmdZTTHdMSdppymPE5zZcBqkaC0ziaWWoOsX:1OAzPQ6vCgvfeZThMSQCszgqDC0zI/OU

    • 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