General

  • Target

    4396b73ed9f563d09e76fdbaabd8f61f382f19b1132a1e4170366681e6c7c1fcN.exe

  • Size

    270KB

  • Sample

    241203-ch3b5strfs

  • MD5

    df919a4dcdefa539f6042cb620d42b50

  • SHA1

    bf35e0ed2b5bfaa1653ebad14019e7f146dc6f02

  • SHA256

    4396b73ed9f563d09e76fdbaabd8f61f382f19b1132a1e4170366681e6c7c1fc

  • SHA512

    3eef9f5a4b75b904f18a53b62bbe0c46e6d2697124e4eec067111fc2edb9c14134bd6333cc67afb95dd75b7cfeb868f232e0495b177b6f140ad8858380f5e412

  • SSDEEP

    3072:WdvzDqxs8ORikgogWfiuRXd3YmSffdTKXNXANewGBvskX1pWA/s8sdi:WFzDqa86hV6uRRqX1evPlwAEdi

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

      4396b73ed9f563d09e76fdbaabd8f61f382f19b1132a1e4170366681e6c7c1fcN.exe

    • Size

      270KB

    • MD5

      df919a4dcdefa539f6042cb620d42b50

    • SHA1

      bf35e0ed2b5bfaa1653ebad14019e7f146dc6f02

    • SHA256

      4396b73ed9f563d09e76fdbaabd8f61f382f19b1132a1e4170366681e6c7c1fc

    • SHA512

      3eef9f5a4b75b904f18a53b62bbe0c46e6d2697124e4eec067111fc2edb9c14134bd6333cc67afb95dd75b7cfeb868f232e0495b177b6f140ad8858380f5e412

    • SSDEEP

      3072:WdvzDqxs8ORikgogWfiuRXd3YmSffdTKXNXANewGBvskX1pWA/s8sdi:WFzDqa86hV6uRRqX1evPlwAEdi

    • 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.

    • 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