General

  • Target

    tmp

  • Size

    1.4MB

  • Sample

    230507-vk4bbsha6s

  • MD5

    1c52b6b7aa217dcaa92d37a48a6ea314

  • SHA1

    8b48635aecd796d8b77ebe51f9003fc7f2517af3

  • SHA256

    762190c15f63a6edbc075ac9ce0ce9e9713a28a9a2efa795767b0256591854ce

  • SHA512

    9cd60c2d287e22a6a8e198ba82f894cf48f507826324ec11d1c1855df69a5cde07ab1f4439c1c32f6e3eb8705730417ff13689de7dbdd8909bc2447967e1b706

  • SSDEEP

    24576:DTbBv5rUDwcyw2ZJtxRCDKvMrBW4eNTygt90e+hoyaxlB:dB1cL2jtxrvMr8jygt+0B

Malware Config

Extracted

Family

asyncrat

Botnet

Default

C2

127.0.0.1:6606

127.0.0.1:7707

127.0.0.1:8808

Mutex

AsyncMutex_6SI8OkPnk

Attributes
  • delay

    3

  • install

    false

  • install_folder

    %AppData%

aes.plain

Targets

    • Target

      tmp

    • Size

      1.4MB

    • MD5

      1c52b6b7aa217dcaa92d37a48a6ea314

    • SHA1

      8b48635aecd796d8b77ebe51f9003fc7f2517af3

    • SHA256

      762190c15f63a6edbc075ac9ce0ce9e9713a28a9a2efa795767b0256591854ce

    • SHA512

      9cd60c2d287e22a6a8e198ba82f894cf48f507826324ec11d1c1855df69a5cde07ab1f4439c1c32f6e3eb8705730417ff13689de7dbdd8909bc2447967e1b706

    • SSDEEP

      24576:DTbBv5rUDwcyw2ZJtxRCDKvMrBW4eNTygt90e+hoyaxlB:dB1cL2jtxrvMr8jygt+0B

    • AsyncRat

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

    • StormKitty

      StormKitty is an open source info stealer written in C#.

    • StormKitty payload

    • Async RAT payload

    • Checks computer location settings

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

    • Executes dropped EXE

    • Loads dropped DLL

    • Drops desktop.ini file(s)

    • Looks up external IP address via web service

      Uses a legitimate IP lookup service to find the infected system's external IP.

    • Looks up geolocation information via web service

      Uses a legitimate geolocation service to find the infected system's geolocation info.

    • Suspicious use of SetThreadContext

MITRE ATT&CK Enterprise v6

Tasks