General

  • Target

    create.bat

  • Size

    953B

  • Sample

    241122-blb4paxlfn

  • MD5

    a34e9091b3cb1b1fddb64dd1e6eafe8b

  • SHA1

    73a9ce1190dbf81871d72cc98b7d81487bad17dc

  • SHA256

    b79c63a1f5777b977a48085de65f8041d1d6b2d5d569224b0f81b343578f1803

  • SHA512

    65391766927605aef01be482578b0f11fc9a9dfd0ee0b0a62ff1df6d07346a4b6d5a0d7409983f3fcd7b8a98e5376fd15bc8961b477be683e88ddf8e5619d0b7

Malware Config

Extracted

Family

mercurialgrabber

C2

https://discordapp.com/api/webhooks/1308883657456619530/0_Ad9EyrLZrIMKH4vjM6XHyvCJJtKddsiohDSyvCWZ8HIxpyNxmVJgrKb_zO-jqSHSO0

Extracted

Family

asyncrat

Botnet

Default

C2

technical-southwest.gl.at.ply.gg:58694

Attributes
  • delay

    1

  • install

    true

  • install_file

    WINDOWS.exe

  • install_folder

    %AppData%

aes.plain

Targets

    • Target

      create.bat

    • Size

      953B

    • MD5

      a34e9091b3cb1b1fddb64dd1e6eafe8b

    • SHA1

      73a9ce1190dbf81871d72cc98b7d81487bad17dc

    • SHA256

      b79c63a1f5777b977a48085de65f8041d1d6b2d5d569224b0f81b343578f1803

    • SHA512

      65391766927605aef01be482578b0f11fc9a9dfd0ee0b0a62ff1df6d07346a4b6d5a0d7409983f3fcd7b8a98e5376fd15bc8961b477be683e88ddf8e5619d0b7

    • AsyncRat

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

    • Asyncrat family

    • Mercurial Grabber Stealer

      Mercurial Grabber is an open source stealer targeting Chrome, Discord and some game clients as well as generic system information.

    • Mercurialgrabber family

    • Async RAT payload

    • Looks for VirtualBox Guest Additions in registry

    • Blocklisted process makes network request

    • Command and Scripting Interpreter: PowerShell

      Using powershell.exe command.

    • Downloads MZ/PE file

    • Looks for VMWare Tools registry key

    • Checks BIOS information in registry

      BIOS information is often read in order to detect sandboxing environments.

    • Checks computer location settings

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

    • Drops startup file

    • Executes dropped EXE

    • Reads user/profile data of web browsers

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

    • Looks up external IP address via web service

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

    • Maps connected drives based on registry

      Disk information is often read in order to detect sandboxing environments.

MITRE ATT&CK Enterprise v15

Tasks