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General

  • Target

    https://github.com

  • Sample

    240629-mqs4jswbkg

Malware Config

Extracted

Family

xworm

Version

5.0

Mutex

0X3uXfrw3ONnrDeQ

Attributes
  • install_file

    USB.exe

  • pastebin_url

    https://pastebin.com/raw/H3wFXmEi

aes.plain

Extracted

Family

asyncrat

Version

0.5.8

Botnet

T

C2

20.199.8.16:1726

Mutex

31FGTEWnaxDE

Attributes
  • delay

    3

  • install

    false

  • install_file

    SeacrhIndexer

  • install_folder

    %AppData%

aes.plain

Extracted

Family

asyncrat

Version

0.5.8

Botnet

Y

C2

20.199.8.16:1726

Mutex

eYLuHMmPZK7A

Attributes
  • delay

    3

  • install

    false

  • install_file

    SeacrhIndexer

  • install_folder

    %AppData%

aes.plain

Targets

    • AsyncRat

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

    • Detect Xworm Payload

    • Rhadamanthys

      Rhadamanthys is an info stealer written in C++ first seen in August 2022.

    • UAC bypass

    • Xworm

      Xworm is a remote access trojan written in C#.

    • Blocklisted process makes network request

    • Downloads MZ/PE file

    • Executes dropped EXE

    • Loads dropped DLL

    • Adds Run key to start application

    • Legitimate hosting services abused for malware hosting/C2

    • Looks up external IP address via web service

      Uses a legitimate IP lookup service to find the infected system's external IP.

    • Command and Scripting Interpreter: PowerShell

      Using powershell.exe command.

    • Hide Artifacts: Hidden Files and Directories

    • Suspicious use of SetThreadContext

MITRE ATT&CK Matrix ATT&CK v13

Execution

Command and Scripting Interpreter

1
T1059

PowerShell

1
T1059.001

Scheduled Task/Job

1
T1053

Scheduled Task

1
T1053.005

Persistence

Boot or Logon Autostart Execution

1
T1547

Registry Run Keys / Startup Folder

1
T1547.001

Scheduled Task/Job

1
T1053

Scheduled Task

1
T1053.005

Privilege Escalation

Abuse Elevation Control Mechanism

1
T1548

Bypass User Account Control

1
T1548.002

Boot or Logon Autostart Execution

1
T1547

Registry Run Keys / Startup Folder

1
T1547.001

Scheduled Task/Job

1
T1053

Scheduled Task

1
T1053.005

Defense Evasion

Abuse Elevation Control Mechanism

1
T1548

Bypass User Account Control

1
T1548.002

Impair Defenses

1
T1562

Disable or Modify Tools

1
T1562.001

Modify Registry

5
T1112

Hide Artifacts

2
T1564

Hidden Files and Directories

2
T1564.001

Subvert Trust Controls

1
T1553

Install Root Certificate

1
T1553.004

Discovery

System Information Discovery

4
T1082

Query Registry

4
T1012

Peripheral Device Discovery

1
T1120

Command and Control

Web Service

1
T1102

Tasks