Overview

overview

10

Static

static

1

install.bat

windows10-2004-x64

8

install.bat

windows11-ltsc_2024-x64

10

Sharing

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General

  • Target
    install.bat
  • Size 2KB
  • Sample260816-wtkq1sfa99
  • SHA256 4eb32d55f8224b13ad50cd93541a0ce5f6577fb1fb4bdeeca728abae2f7830e4
  • MD5 SHA1 SHA512 TLSH
Score
10/10
asyncratslumzickdefense_evasiondiscoveryexecutionpersistencerat

Malware Config

Extracted

Family

  • asyncrat

Botnet

  • slumzick

C2

  • 45.141.27.211:3232

Attributes
  • delay

    1

  • install

    true

  • install_file

    system.exe

  • install_folder

    %AppData%

  • local_host

    127.0.0.1

aes.plain

Targets

    • Target
      install.bat
    • Size 2KB
    • SHA256 4eb32d55f8224b13ad50cd93541a0ce5f6577fb1fb4bdeeca728abae2f7830e4
    • MD5 SHA1 SHA512 TLSH
    Score
    10/10
    defense_evasiondiscoveryexecutionpersistenceslumzickasyncratrat

    • Async RAT payload

      rat

    • Family: AsyncRat

      AsyncRAT is designed to remotely monitor and control other computers written in C#.

      ratasyncrat

    • Badlisted process makes network request

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

    • Command and Scripting Interpreter: PowerShell

      Run Powershell and hide display window.

      execution

    • Downloads MZ/PE file

    • Creates new service(s)

      persistenceexecution

    • Executes dropped EXE

    • Modifies file permissions

      discovery

    • Drops file in System32 directory

    behavioral1behavioral2

MITRE ATT&CK Enterprise v16

Reconnaissance

Resource Development

Initial Access

Execution

Command and Scripting Interpreter

2
T1059

PowerShell

1
T1059.001

Windows Command Shell

1
T1059.003

Scheduled Task/Job

1
T1053

Scheduled Task

1
T1053.005

System Services

1
T1569

Service Execution

1
T1569.002

Persistence

Create or Modify System Process

1
T1543

Windows Service

1
T1543.003

Scheduled Task/Job

1
T1053

Scheduled Task

1
T1053.005

Privilege Escalation

Create or Modify System Process

1
T1543

Windows Service

1
T1543.003

Scheduled Task/Job

1
T1053

Scheduled Task

1
T1053.005

Defense Evasion

File and Directory Permissions Modification

1
T1222

Hide Artifacts

1
T1564

Hidden Files and Directories

1
T1564.001

Credential Access

Discovery

Query Registry

1
T1012

System Information Discovery

1
T1082

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Tasks