General

  • Target

    Infected.exe

  • Size

    63KB

  • Sample

    240720-kh3lxayamf

  • MD5

    c842ccf5599a37e82191fc67fb5e9123

  • SHA1

    59a204a05b7e6ba6164105614092d8e3eaf141be

  • SHA256

    52adfe5797b14ea67d9d9a78eca85a5ef016cc121f439fbfe8f7219dfefd1303

  • SHA512

    efb92b33a593f2649d91b0c1533f07277a066256b12bdd5e993a6c8c56946eea214fa9732801e3dfe0eeda5ee6636b97dd956e0fcc272ac27d076e488f05a8ac

  • SSDEEP

    768:QvsM2sk/978SQC8A+XjlazcBRL5JTk1+T4KSBGHmDbD/ph0oXnuP5zApJhUVYSu6:j1/M/dSJYUbdh9nuP5zeGJu0dpqKmY7

Malware Config

Extracted

Family

asyncrat

Botnet

Default

C2

bulletingmarrano-45523.portmap.host:45523

Attributes
  • delay

    1

  • install

    false

  • install_folder

    %AppData%

aes.plain

Targets

    • Target

      Infected.exe

    • Size

      63KB

    • MD5

      c842ccf5599a37e82191fc67fb5e9123

    • SHA1

      59a204a05b7e6ba6164105614092d8e3eaf141be

    • SHA256

      52adfe5797b14ea67d9d9a78eca85a5ef016cc121f439fbfe8f7219dfefd1303

    • SHA512

      efb92b33a593f2649d91b0c1533f07277a066256b12bdd5e993a6c8c56946eea214fa9732801e3dfe0eeda5ee6636b97dd956e0fcc272ac27d076e488f05a8ac

    • SSDEEP

      768:QvsM2sk/978SQC8A+XjlazcBRL5JTk1+T4KSBGHmDbD/ph0oXnuP5zApJhUVYSu6:j1/M/dSJYUbdh9nuP5zeGJu0dpqKmY7

    • AsyncRat

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

    • Grants admin privileges

      Uses net.exe to modify the user's privileges.

    • Renames multiple (3202) files with added filename extension

      This suggests ransomware activity of encrypting all the files on the system.

    • Checks computer location settings

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

    • Executes dropped EXE

    • Reads user/profile data of web browsers

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

    • Drops desktop.ini file(s)

    • Sets desktop wallpaper using registry

MITRE ATT&CK Enterprise v15

Tasks