General

  • Target

    ayoubpayload.exe

  • Size

    2.2MB

  • Sample

    230823-wbx9dsfh9y

  • MD5

    267d75c2de40684ff69a9cbe186d951a

  • SHA1

    7a0a4d7c9dabfc767822d986ba40777536768063

  • SHA256

    81ecb3b3f6307ab77fa8242cf6942cea00d2bd435a78e12e18a517cbad0311c6

  • SHA512

    1592f19c7fe8a6d9d41777b7e9bfd79e7f718345925e14c2bad7bbfb311a9f71da95947f32f3d8994a5f137441261ff7e6ab1f6200b1cbdd154b8118a11ecd29

  • SSDEEP

    49152:gxdegI/t6a+DGYuSl+GPs/clmJ+kJQlQRI6FIPaO9oa4N2kEvjVC8HlJV6Zz1o:gxrI1sX+GUEoJ+uQlQRkPaO9pgEvjlHx

Malware Config

Extracted

Family

asyncrat

Botnet

Default

C2

127.0.0.1:6606

127.0.0.1:7707

127.0.0.1:8808

https://api.telegram.org/bot6461431087:AAEzHlXuxjiqDlddC5mfOauganj96ROBp6U/sendMessage?chat_id=578807764

Mutex

AsyncMutex_6SI8OkPnk

Attributes
  • delay

    3

  • install

    false

  • install_folder

    %AppData%

aes.plain

Extracted

Family

quasar

Version

1.4.0.0

Botnet

Office04

C2

185.238.3.205:6669

Mutex

4LDmiMPcrWXI3vcHed

Attributes
  • encryption_key

    M11R9prTigoaqxzXOSPw

  • install_name

    Client.exe

  • log_directory

    Logs

  • reconnect_delay

    3000

  • startup_key

    Quasar Client Startup

  • subdirectory

    SubDir

Targets

    • Target

      ayoubpayload.exe

    • Size

      2.2MB

    • MD5

      267d75c2de40684ff69a9cbe186d951a

    • SHA1

      7a0a4d7c9dabfc767822d986ba40777536768063

    • SHA256

      81ecb3b3f6307ab77fa8242cf6942cea00d2bd435a78e12e18a517cbad0311c6

    • SHA512

      1592f19c7fe8a6d9d41777b7e9bfd79e7f718345925e14c2bad7bbfb311a9f71da95947f32f3d8994a5f137441261ff7e6ab1f6200b1cbdd154b8118a11ecd29

    • SSDEEP

      49152:gxdegI/t6a+DGYuSl+GPs/clmJ+kJQlQRI6FIPaO9oa4N2kEvjVC8HlJV6Zz1o:gxrI1sX+GUEoJ+uQlQRkPaO9pgEvjlHx

    • AsyncRat

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

    • Quasar RAT

      Quasar is an open source Remote Access Tool.

    • Quasar payload

    • StormKitty

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

    • StormKitty payload

    • Async RAT payload

    • Executes dropped EXE

    • Loads dropped DLL

    • Adds Run key to start application

    • 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 v15

Tasks