Overview

overview

10

Static

static

1

Adobe_Read...ll.vbs

windows10-2004-x64

8

Adobe_Read...ll.vbs

windows11-ltsc_2024-x64

10

Sharing

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General

  • Target
    Adobe_Reader_en_install.vbs
  • Size 771B
  • Sample261019-mhtecaf16q
  • SHA256 601d15ced87e2adb5602598f6156254edf67613cec451ba51de1b6c88627ab6d
  • MD5 SHA1 SHA512 TLSH
Score
10/10
meshagentbackdoordefense_evasiondiscoveryexecutionexploitpersistenceratspywarestealertrojan

Malware Config

Targets

    • Target
      Adobe_Reader_en_install.vbs
    • Size 771B
    • SHA256 601d15ced87e2adb5602598f6156254edf67613cec451ba51de1b6c88627ab6d
    • MD5 SHA1 SHA512 TLSH
    Score
    10/10
    discoveryexecutionpersistencebackdoordefense_evasionexploitmeshagentratspywarestealertrojan

    • Detects MeshAgent payload

    • Family: MeshAgent

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

      rattrojanbackdoormeshagent

    • Badlisted process makes network request

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

    • Command and Scripting Interpreter: PowerShell

      Powershell Invoke Web Request.

      execution

    • Command and Scripting Interpreter: PowerShell

      Run Powershell and hide display window.

      execution

    • Possible privilege escalation attempt

      exploit

    • Sets service image path in registry

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

      persistence

    • Checks computer location settings

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

    • Creates new service(s)

      persistenceexecution

    • Executes dropped EXE

    • Modifies file permissions

      discovery

    • Reads user/profile data of web browsers

      Infostealers often target stored browser data, which can include saved credentials etc.

      spywarestealer

    • Adds Run key to start application

      persistence

    • Checks installed software on the system

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

      discovery

    • Checks whether UAC is enabled

      defense_evasiontrojan

    • Network Share Discovery

      Attempt to gather information on host network.

      discovery

    • Drops file in System32 directory

    • Executes a VBScript file via the Windows Script Host.

      execution
    behavioral1behavioral2

MITRE ATT&CK Enterprise v16

Reconnaissance

Resource Development

Initial Access

Execution

Command and Scripting Interpreter

3
T1059

PowerShell

2
T1059.001

Visual Basic

1
T1059.005

System Services

1
T1569

Service Execution

1
T1569.002

Persistence

Boot or Logon Autostart Execution

2
T1547

Registry Run Keys / Startup Folder

2
T1547.001

Create or Modify System Process

2
T1543

Windows Service

2
T1543.003

Privilege Escalation

Boot or Logon Autostart Execution

2
T1547

Registry Run Keys / Startup Folder

2
T1547.001

Create or Modify System Process

2
T1543

Windows Service

2
T1543.003

Defense Evasion

File and Directory Permissions Modification

1
T1222

Modify Registry

3
T1112

Subvert Trust Controls

1
T1553

Install Root Certificate

1
T1553.004

Credential Access

Credentials from Password Stores

1
T1555

Credentials from Web Browsers

1
T1555.003

Unsecured Credentials

1
T1552

Credentials In Files

1
T1552.001

Discovery

Network Share Discovery

1
T1135

Query Registry

4
T1012

System Information Discovery

5
T1082

System Network Configuration Discovery

1
T1016

Lateral Movement

Collection

Data from Local System

1
T1005

Command and Control

Exfiltration

Impact

Tasks