Overview

overview

10

Static

static

sky.bat

windows7-x64

8

sky.bat

windows10-1703-x64

10

sky.bat

windows10-2004-x64

10

Sharing

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General

  • Target
    sky.bat
  • Size 49KB
  • Sample230112-t174sagg29
  • SHA256 d329a265d4005b2cb8902d6148ff5e4477f2203bc2e476e51e5895f9be99c53e
  • MD5 SHA1 SHA512 SSDEEP
Score
10/10
asyncratquasardefaultoffice04ratspywarestealertrojan

Malware Config

Extracted

Family

  • asyncrat

Version

  • 0.5.7B

Botnet

  • Default

C2

  • 154.12.250.38:6606

  • 154.12.250.38:7707

  • 154.12.250.38:8808

Mutex

  • AsyncMutex_6SI8OkPnk

Attributes
  • delay

    3

  • install

    false

  • install_folder

    %AppData%

aes.plain

Extracted

Family

  • quasar

Version

  • 1.4.0

Botnet

  • Office04

C2

  • 154.12.250.38:4782

Mutex

  • 41264372-ec70-4ccc-bf22-851572e94d2a

Attributes
  • encryption_key

    2D1A3994D3C8E5C6071E7048589030F3E389DDC7

  • install_name

    Client.exe

  • log_directory

    Logs

  • reconnect_delay

    3000

  • startup_key

    Quasar Client Startup

  • subdirectory

    SubDir

Targets

    • Target
      sky.bat
    • Size 49KB
    • SHA256 d329a265d4005b2cb8902d6148ff5e4477f2203bc2e476e51e5895f9be99c53e
    • MD5 SHA1 SHA512 SSDEEP
    Score
    10/10
    asyncratquasardefaultoffice04ratspywarestealertrojan

    • AsyncRat

      AsyncRAT is designed to remotely monitor and control other computers.

      ratasyncrat

    • Quasar RAT

      Quasar is an open source Remote Access Tool.

      trojanspywarequasar

    • Quasar payload

    • Async RAT payload

      rat

    • Executes dropped EXE

    • Checks computer location settings

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

    • Loads dropped DLL

    • Reads user/profile data of web browsers

      Infostealers often target stored browser data, which can include saved credentials etc.

      spywarestealer

    • Looks up external IP address via web service

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

    behavioral1behavioral2behavioral3

MITRE ATT&CK Enterprise v6

Tasks