General

  • Target

    Client-built.exe

  • Size

    3.1MB

  • Sample

    240724-dmqpksvdpj

  • MD5

    82ba7526f0ba0ee9fd92c10b2aafd355

  • SHA1

    b53cfc38809e7e439c740b6168de81ece2310e49

  • SHA256

    cec358561bbae4d72b2665c1b5fd48cfee3f1fed503efb63fe1f9ce70fa7936a

  • SHA512

    a46d293aaf128682787f9bcc3754b18ce9b2870b9a781695bb7b26183002a2c501c6c04cffbf56c64d1c346d353018eed3fcb09f744509027466aa5e272dc429

  • SSDEEP

    49152:Cvkt62XlaSFNWPjljiFa2RoUYILWRJ6rbR3LoGdg+THHB72eh2NT:Cv462XlaSFNWPjljiFXRoUYILWRJ69Q

Malware Config

Extracted

Family

quasar

Version

1.4.1

Botnet

Office04

C2

192.168.1.4:4782

Mutex

7e7eefb0-bbcf-4b86-acd2-8a3675af71f2

Attributes
  • encryption_key

    850E5D08EE2F98145C3742B9BDCCD637E6DD2097

  • install_name

    taskhost.exe

  • log_directory

    Logs

  • reconnect_delay

    3000

  • startup_key

    taskhost

  • subdirectory

    SKR

Targets

    • Target

      Client-built.exe

    • Size

      3.1MB

    • MD5

      82ba7526f0ba0ee9fd92c10b2aafd355

    • SHA1

      b53cfc38809e7e439c740b6168de81ece2310e49

    • SHA256

      cec358561bbae4d72b2665c1b5fd48cfee3f1fed503efb63fe1f9ce70fa7936a

    • SHA512

      a46d293aaf128682787f9bcc3754b18ce9b2870b9a781695bb7b26183002a2c501c6c04cffbf56c64d1c346d353018eed3fcb09f744509027466aa5e272dc429

    • SSDEEP

      49152:Cvkt62XlaSFNWPjljiFa2RoUYILWRJ6rbR3LoGdg+THHB72eh2NT:Cv462XlaSFNWPjljiFXRoUYILWRJ69Q

    • Quasar RAT

      Quasar is an open source Remote Access Tool.

    • Quasar payload

    • Executes dropped EXE

MITRE ATT&CK Enterprise v15

Tasks