General

  • Target

    注文仕様書.vbs

  • Size

    562KB

  • Sample

    240924-k2b83aycnq

  • MD5

    5548cba2f4acdafa93152fcec4f27ac8

  • SHA1

    fc3227f824be04c73fa9e864f5bf34676bbcad8c

  • SHA256

    55b6b8489894a7769451a1a45f5662ae2e0f9f1057077643c15699aa43d39eed

  • SHA512

    5fbed2a9a76a798cb057b61a1b895e72da32d93954f368be1b29a89d77e4a8b1e480675b53b95626f04ce937875c716bbd1d6072ebe27e7a2bd3fbf149f3aacf

  • SSDEEP

    1536:kmmmmmmmmmmmmmmmmmmyFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFF1:k5oTl

Malware Config

Extracted

Language
ps1
Source
URLs
exe.dropper

https://drive.google.com/uc?export=download&id=

Extracted

Credentials

  • Protocol:
    ftp
  • Host:
    ftp.desckvbrat.com.br
  • Port:
    21
  • Username:
    desckvbrat1
  • Password:
    developerpro21578Jp@@

Targets

    • Target

      注文仕様書.vbs

    • Size

      562KB

    • MD5

      5548cba2f4acdafa93152fcec4f27ac8

    • SHA1

      fc3227f824be04c73fa9e864f5bf34676bbcad8c

    • SHA256

      55b6b8489894a7769451a1a45f5662ae2e0f9f1057077643c15699aa43d39eed

    • SHA512

      5fbed2a9a76a798cb057b61a1b895e72da32d93954f368be1b29a89d77e4a8b1e480675b53b95626f04ce937875c716bbd1d6072ebe27e7a2bd3fbf149f3aacf

    • SSDEEP

      1536:kmmmmmmmmmmmmmmmmmmyFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFF1:k5oTl

    • Detects ZharkBot payload

      ZharkBot is a botnet written C++.

    • ZharkBot

      ZharkBot is a botnet written C++.

    • Blocklisted process makes network request

    • Command and Scripting Interpreter: PowerShell

      Run Powershell to modify Windows Defender settings to add exclusions for file extensions, paths, and processes.

    • Checks computer location settings

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

    • Drops startup file

    • Adds Run key to start application

    • Command and Scripting Interpreter: PowerShell

      Using powershell.exe command.

    • Indicator Removal: File Deletion

      Adversaries may delete files left behind by the actions of their intrusion activity.

    • Legitimate hosting services abused for malware hosting/C2

    • Suspicious use of SetThreadContext

MITRE ATT&CK Enterprise v15

Tasks