Overview

overview

10

Static

static

10

Client.exe

windows10-2004-x64

Client.exe

windows11-21h2-x64

10

Sharing

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General

  • Target
    Client.exe
  • Size 158KB
  • Sample250926-m4v53awzhy
  • SHA256 eb08eac3b04d73dbfd85a1c95fd412e74badf4f07bfca0e3e48c536ea09ccdb6
  • MD5 SHA1 SHA512 SSDEEP
Score
10/10
arrowratclientadwarediscoveryexecutionpersistenceransomwareratspyware

Malware Config

Extracted

Family

  • arrowrat

Botnet

  • Client

C2

  • dontstopme01.ddns.net:4545

Mutex

  • FluOTIZYW

Targets

    • Target
      Client.exe
    • Size 158KB
    • SHA256 eb08eac3b04d73dbfd85a1c95fd412e74badf4f07bfca0e3e48c536ea09ccdb6
    • MD5 SHA1 SHA512 SSDEEP
    Score
    10/10
    adwareclientdiscoveryexecutionarrowratpersistenceratspywareransomware

    • ArrowRat

      Remote access tool with various capabilities first seen in late 2021.

      ratarrowrat

    • Arrowrat family

      arrowrat

    • Modifies WinLogon for persistence

      persistence

    • Boot or Logon Autostart Execution: Active Setup

      Adversaries may achieve persistence by adding a Registry key to the Active Setup of the local machine.

      persistence

    • Command and Scripting Interpreter: PowerShell

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

      execution

    • Checks computer location settings

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

    • Enumerates connected drives

      Attempts to read the root path of hard drives other than the default C: drive.

    • Suspicious use of SetThreadContext

    behavioral1behavioral2

MITRE ATT&CK Enterprise v16

Tasks