General

  • Target
    redux.bat
  • Size 1KB
  • Sample260815-g1nzpa1bme
  • SHA256 1ee0fb6bdcd3d6d610fd82c13a715995dca6484e3a67955a46b33d6f6cd6f89f
  • MD5 SHA1 SHA512 TLSH

Malware Config

Extracted

Family
  • meshagent

Version
  • 2

Botnet
  • Borka

C2
  • http://microsoft.ns1.name:6443/agent.ashx

Attributes
  • mesh_id

    0xC881DE50A581B57610B4ECBC6DFE583313A15FDDA8F53CDADAAD47A9A01793042E4830DFD96237C6B61612AF0D1B8DDD

  • server_id

    6F1BBBEF6D9578D0BF6A05FF7B591A2735E5064AA05AE1ADDBCF7FB79A605ADC11E782B60F9E948491C1A70AB13C645B

  • wss

    wss://microsoft.ns1.name:6443/agent.ashx

Targets

    • Target
      redux.bat
    • Size 1KB
    • SHA256 1ee0fb6bdcd3d6d610fd82c13a715995dca6484e3a67955a46b33d6f6cd6f89f
    • MD5 SHA1 SHA512 TLSH
    • Detects MeshAgent payload

    • Family: MeshAgent

      MeshAgent is an open source remote access trojan written in C++.

    • Badlisted process makes network request

      Network request originating from process or tool commonly abused by malware.

    • Command and Scripting Interpreter: PowerShell

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

    • Command and Scripting Interpreter: PowerShell

      Using powershell.exe command.

    • Downloads MZ/PE file

    • Sets service image path in registry

      This determines the executable launched when a service starts. It can be used to establish persistence.

    • Executes dropped EXE

    • Checks installed software on the system

      Looks up Uninstall key entries in the registry to enumerate software on the system.

    • Drops file in System32 directory

MITRE ATT&CK Enterprise v16

Tasks