General

  • Target

    netutil.exe

  • Size

    45KB

  • Sample

    241215-tjsb1a1lcj

  • MD5

    823308911bdc70ead70f3dfa4ef78fbb

  • SHA1

    ef9d6123d41288daaffb36389c03f290a08bc33f

  • SHA256

    e2fa9ec2b619fcb4e4d40d95ad57ce2d8ba94efc20defba98f19196be75d2a53

  • SHA512

    4643ea8fbdfde92e5e8fd00e8d5fb718b4a43e8d902cfb36197d3aa5d50d3b769241ed08bb4961ad148cc9e867ba85d97010cda5c9737f1d989c30da4d22aa9f

  • SSDEEP

    768:zuwpFTAY3IQWUe9jqmo2qLN9oSsqHz1OPIqzjbBg83ioGFEkcO5S6IBDZLl:zuwpFTA4/2iKti3q3bu8S7NcO5edLl

Malware Config

Extracted

Family

asyncrat

Version

0.5.8

Botnet

Default

C2

192.168.1.87:16804

Mutex

uyVUAyFT67eL

Attributes
  • delay

    3

  • install

    true

  • install_file

    netutil.exe

  • install_folder

    %AppData%

aes.plain

Targets

    • Target

      netutil.exe

    • Size

      45KB

    • MD5

      823308911bdc70ead70f3dfa4ef78fbb

    • SHA1

      ef9d6123d41288daaffb36389c03f290a08bc33f

    • SHA256

      e2fa9ec2b619fcb4e4d40d95ad57ce2d8ba94efc20defba98f19196be75d2a53

    • SHA512

      4643ea8fbdfde92e5e8fd00e8d5fb718b4a43e8d902cfb36197d3aa5d50d3b769241ed08bb4961ad148cc9e867ba85d97010cda5c9737f1d989c30da4d22aa9f

    • SSDEEP

      768:zuwpFTAY3IQWUe9jqmo2qLN9oSsqHz1OPIqzjbBg83ioGFEkcO5S6IBDZLl:zuwpFTA4/2iKti3q3bu8S7NcO5edLl

    • AsyncRat

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

    • Asyncrat family

    • Async RAT payload

    • Checks computer location settings

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

    • Executes dropped EXE

    • Loads dropped DLL

MITRE ATT&CK Enterprise v15

Tasks