General

  • Target

    64878996b8437be6c86ae7dcd9d0adebb4e226a19b743b8b4ec6d3a7801af0fc

  • Size

    752KB

  • Sample

    230216-w76kmsbb38

  • MD5

    63fac9ba33bfbc492f9e1aba79007207

  • SHA1

    ef71219fd3128648edce1774cbce9f25d6d348a7

  • SHA256

    64878996b8437be6c86ae7dcd9d0adebb4e226a19b743b8b4ec6d3a7801af0fc

  • SHA512

    fbdbf6d9b016d3445a0eaccf8c47684381decc2588173cf2b846baf7f6693a2fa14f3e997652001eb553ef231e34411898a592c6d506467eeb90698ca00c7bad

  • SSDEEP

    12288:69KDWdlxnGw3GLPdjDfXmPYX9MF0zJaZbVKNlDyqaycXrvNxPq3w:66ih13yV/4/FsJsKNsAYJxPq3w

Malware Config

Extracted

Family

djvu

C2

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

Attributes
  • extension

    .hhmm

  • offline_id

    dMMXkgwQTycP13C5xwPbHDSzhx1ZxiPgIMZXewt1

  • payload_url

    http://uaery.top/dl/build2.exe

    http://bihsy.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. You can get and look video overview decrypt tool: https://we.tl/t-UQkYLBSiQ4 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: 0646JOsie

rsa_pubkey.plain

Extracted

Family

vidar

Version

2.5

Botnet

19

Attributes
  • profile_id

    19

Targets

    • Target

      64878996b8437be6c86ae7dcd9d0adebb4e226a19b743b8b4ec6d3a7801af0fc

    • Size

      752KB

    • MD5

      63fac9ba33bfbc492f9e1aba79007207

    • SHA1

      ef71219fd3128648edce1774cbce9f25d6d348a7

    • SHA256

      64878996b8437be6c86ae7dcd9d0adebb4e226a19b743b8b4ec6d3a7801af0fc

    • SHA512

      fbdbf6d9b016d3445a0eaccf8c47684381decc2588173cf2b846baf7f6693a2fa14f3e997652001eb553ef231e34411898a592c6d506467eeb90698ca00c7bad

    • SSDEEP

      12288:69KDWdlxnGw3GLPdjDfXmPYX9MF0zJaZbVKNlDyqaycXrvNxPq3w:66ih13yV/4/FsJsKNsAYJxPq3w

    • Detected Djvu ransomware

    • Djvu Ransomware

      Ransomware which is a variant of the STOP family.

    • Vidar

      Vidar is an infostealer based on Arkei stealer.

    • Downloads MZ/PE file

    • Checks computer location settings

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

    • 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