General

  • Target

    RuntimeBroker.exe

  • Size

    45KB

  • Sample

    250329-z6xswstwht

  • MD5

    7a984e3a8ef99e429ceef1f1ddc144f4

  • SHA1

    581dd32af3c53b1dc7b8a95aa2805ee0e8f44190

  • SHA256

    4d8c876b969caf2449f169f89ec257f5e1412e23b609ab4f7c7ee72cd4b0de60

  • SHA512

    b078b827e49cddfd743dd55802c0a48dc5056ccb172cb83a65e484a26c62fa30e1fa6860621752d4adbad3e5d234d759c817a0c0b3532531a99f50f05622bf6a

  • SSDEEP

    768:ruGr1TVhfPNWUtWuHmo2qzVh7N78wJuPIozjbNVgXKDi4Rj6nKBDZjx:ruGr1TVxx2GFN4iXo3bsXjCj6nUdjx

Malware Config

Extracted

Family

asyncrat

Version

0.5.8

Botnet

Default

C2

holefo2785-22820.portmap.host:22820

holefo2785-22820.portmap.host:6606

Mutex

I674w9YbNo4n

Attributes
  • delay

    3

  • install

    true

  • install_file

    RuntimeBroker.exe

  • install_folder

    %AppData%

aes.plain

Targets

    • Target

      RuntimeBroker.exe

    • Size

      45KB

    • MD5

      7a984e3a8ef99e429ceef1f1ddc144f4

    • SHA1

      581dd32af3c53b1dc7b8a95aa2805ee0e8f44190

    • SHA256

      4d8c876b969caf2449f169f89ec257f5e1412e23b609ab4f7c7ee72cd4b0de60

    • SHA512

      b078b827e49cddfd743dd55802c0a48dc5056ccb172cb83a65e484a26c62fa30e1fa6860621752d4adbad3e5d234d759c817a0c0b3532531a99f50f05622bf6a

    • SSDEEP

      768:ruGr1TVhfPNWUtWuHmo2qzVh7N78wJuPIozjbNVgXKDi4Rj6nKBDZjx:ruGr1TVxx2GFN4iXo3bsXjCj6nUdjx

    • 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