General

  • Target

    python-3.12.4-amd64.exe

  • Size

    25.5MB

  • Sample

    240730-wb8ecs1brk

  • MD5

    f3df1be26cc7cbd8252ab5632b62d740

  • SHA1

    3b1f54802b4cb8c02d1eb78fc79f95f91e8e49e4

  • SHA256

    da5809df5cb05200b3a528a186f39b7d6186376ce051b0a393f1ddf67c995258

  • SHA512

    2f9a11ffae6d9f1ed76bf816f28812fcba71f87080b0c92e52bfccb46243118c5803a7e25dd78003ca7d66501bfcdce8ff7c691c63c0038b0d409ca3842dcc89

  • SSDEEP

    786432:zRd0l0X/46+nq1rcVqA5Z2bQcLsv0GlYrJF55e2nRk:L5P46+q1QTILMKB5e2nRk

Malware Config

Extracted

Family

asyncrat

Version

1.0.7

Botnet

def

C2

37.18.62.18:8060

Mutex

era2312swe12-1213rsgdkms23

Attributes
  • delay

    1

  • install

    true

  • install_file

    CCXProcess.exe

  • install_folder

    %Temp%

aes.plain

Targets

    • Target

      python-3.12.4-amd64.exe

    • Size

      25.5MB

    • MD5

      f3df1be26cc7cbd8252ab5632b62d740

    • SHA1

      3b1f54802b4cb8c02d1eb78fc79f95f91e8e49e4

    • SHA256

      da5809df5cb05200b3a528a186f39b7d6186376ce051b0a393f1ddf67c995258

    • SHA512

      2f9a11ffae6d9f1ed76bf816f28812fcba71f87080b0c92e52bfccb46243118c5803a7e25dd78003ca7d66501bfcdce8ff7c691c63c0038b0d409ca3842dcc89

    • SSDEEP

      786432:zRd0l0X/46+nq1rcVqA5Z2bQcLsv0GlYrJF55e2nRk:L5P46+q1QTILMKB5e2nRk

    • AsyncRat

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

    • Blocklisted process makes network request

    • Obfuscated with Agile.Net obfuscator

      Detects use of the Agile.Net commercial obfuscator, which is capable of entity renaming and control flow obfuscation.

    • Adds Run key to start application

    • Boot or Logon Autostart Execution: Active Setup

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

    • Enumerates connected drives

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

    • Legitimate hosting services abused for malware hosting/C2

    • Obfuscated Files or Information: Command Obfuscation

      Adversaries may obfuscate content during command execution to impede detection.

    • Event Triggered Execution: Component Object Model Hijacking

      Adversaries may establish persistence by executing malicious content triggered by hijacked references to Component Object Model (COM) objects.

    • Suspicious use of SetThreadContext

MITRE ATT&CK Matrix ATT&CK v13

Persistence

Boot or Logon Autostart Execution

2
T1547

Registry Run Keys / Startup Folder

1
T1547.001

Active Setup

1
T1547.014

Event Triggered Execution

1
T1546

Component Object Model Hijacking

1
T1546.015

Privilege Escalation

Boot or Logon Autostart Execution

2
T1547

Registry Run Keys / Startup Folder

1
T1547.001

Active Setup

1
T1547.014

Event Triggered Execution

1
T1546

Component Object Model Hijacking

1
T1546.015

Defense Evasion

Modify Registry

3
T1112

Obfuscated Files or Information

1
T1027

Command Obfuscation

1
T1027.010

Discovery

Query Registry

4
T1012

Peripheral Device Discovery

2
T1120

System Information Discovery

4
T1082

Browser Information Discovery

1
T1217

System Location Discovery

1
T1614

System Language Discovery

1
T1614.001

Command and Control

Web Service

1
T1102

Tasks