General

  • Target

    85d9a7d75ece0120c82dd2980532c1c4eb4e5a76e58a228aeec21aebc307a100

  • Size

    262KB

  • Sample

    250329-x5ppsatmw8

  • MD5

    bb3d025def36b30d2fb3f442995fba03

  • SHA1

    6c19a62c2823afce16fd56c9f7ca3fc34c04d49b

  • SHA256

    85d9a7d75ece0120c82dd2980532c1c4eb4e5a76e58a228aeec21aebc307a100

  • SHA512

    22322032c27e91970b4907cb2d14d889dffdc95f9914788a4f312518bb9b3172eb70bbbd8a32879b28d6fbe24ca721c8424c0c0dac3e247f2424ef318ab789e1

  • SSDEEP

    3072:WdvzDqxs8ORikgogWfiuRXd3YmSffdTKXNXANewGBvskX1pWA/eX:WFzDqa86hV6uRRqX1evPlwAw

Malware Config

Extracted

Family

asyncrat

Version

0.4.9G

C2

corporation.warzonedns.com:9341

Mutex

480-28105c055659

Attributes
  • delay

    0

  • install

    false

  • install_folder

    %AppData%

aes.plain

Targets

    • Target

      85d9a7d75ece0120c82dd2980532c1c4eb4e5a76e58a228aeec21aebc307a100

    • Size

      262KB

    • MD5

      bb3d025def36b30d2fb3f442995fba03

    • SHA1

      6c19a62c2823afce16fd56c9f7ca3fc34c04d49b

    • SHA256

      85d9a7d75ece0120c82dd2980532c1c4eb4e5a76e58a228aeec21aebc307a100

    • SHA512

      22322032c27e91970b4907cb2d14d889dffdc95f9914788a4f312518bb9b3172eb70bbbd8a32879b28d6fbe24ca721c8424c0c0dac3e247f2424ef318ab789e1

    • SSDEEP

      3072:WdvzDqxs8ORikgogWfiuRXd3YmSffdTKXNXANewGBvskX1pWA/eX:WFzDqa86hV6uRRqX1evPlwAw

    • AsyncRat

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

    • Asyncrat family

    • Contains code to disable Windows Defender

      A .NET executable tasked with disabling Windows Defender capabilities such as realtime monitoring, blocking at first seen, etc.

    • Boot or Logon Autostart Execution: Active Setup

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

    • Checks computer location settings

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

    • Executes dropped EXE

    • Loads dropped DLL

    • Adds Run key to start application

    • Suspicious use of SetThreadContext

MITRE ATT&CK Enterprise v15

Tasks