General

  • Target

    Client-built.exe

  • Size

    3.1MB

  • Sample

    240403-tzm28afg67

  • MD5

    4be081a8a0d977ee7aecb447124d552a

  • SHA1

    85b6b7d04223fd184260aa21488b1473dc274108

  • SHA256

    459b63571d796e10325601bb4c0ac907b6ad95a4a5c6cb16709fe1f3a4095fa1

  • SHA512

    d976c7d28869750df41a5f90268386e4ca3184b79a145cc6f641533bc7dfe0267983ee056957f5a5792e626975c4467f8e4b4738a366ad8769695ca243460bdd

  • SSDEEP

    49152:3vbI22SsaNYfdPBldt698dBcjHWXb3PardLoGd3THHB72eh2NT:3vk22SsaNYfdPBldt6+dBcjHK32

Malware Config

Extracted

Family

quasar

Version

1.4.1

Botnet

Office04

C2

fall-paste.gl.at.ply.gg:18171

Mutex

b587e6ea-3a5e-46d7-ac84-bfe4007d916f

Attributes
  • encryption_key

    553B3648666DFA53E09DA5C22A85D4D2B387E5AD

  • install_name

    Client.exe

  • log_directory

    Logs

  • reconnect_delay

    3000

  • startup_key

    Quasar Client Startup

  • subdirectory

    SubDir

Targets

    • Target

      Client-built.exe

    • Size

      3.1MB

    • MD5

      4be081a8a0d977ee7aecb447124d552a

    • SHA1

      85b6b7d04223fd184260aa21488b1473dc274108

    • SHA256

      459b63571d796e10325601bb4c0ac907b6ad95a4a5c6cb16709fe1f3a4095fa1

    • SHA512

      d976c7d28869750df41a5f90268386e4ca3184b79a145cc6f641533bc7dfe0267983ee056957f5a5792e626975c4467f8e4b4738a366ad8769695ca243460bdd

    • SSDEEP

      49152:3vbI22SsaNYfdPBldt698dBcjHWXb3PardLoGd3THHB72eh2NT:3vk22SsaNYfdPBldt6+dBcjHK32

    • Quasar RAT

      Quasar is an open source Remote Access Tool.

    • Quasar payload

    • Checks computer location settings

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

MITRE ATT&CK Enterprise v15

Tasks