General

  • Target

    Client-builttttt.exe

  • Size

    3.1MB

  • Sample

    240419-2hxt4aab8y

  • MD5

    6008b1f40ce25519bacd9a12f89755df

  • SHA1

    e38e22911d1baebae439caf4d5556143927e3a02

  • SHA256

    33ec7881247e8bd2bb40bb8c3f54b8e18d6c4f562513e976170de401230a50f7

  • SHA512

    133aea39eb9617aa968c33add336304a1b1796ba1945db7ad7b6748d3463e77dbb405ff3755f4dc1f6d3de37eec870d9b01c3dcbaa0ff399f02e86174ec5a2ce

  • SSDEEP

    49152:Sv/I22SsaNYfdPBldt698dBcjHghGmvBToGduNTHHB72eh2NT:SvQ22SsaNYfdPBldt6+dBcjHghGmv5e

Malware Config

Extracted

Family

quasar

Version

1.4.1

Botnet

Office04

C2

192.168.1.139:4782

127.0.0.1:4782

Mutex

e12e9d8f-f86f-4c20-aaa9-ca4ae3df9435

Attributes
  • encryption_key

    8A5C503C69142D8C1F9A30FB7AA52FB2729B3861

  • install_name

    Client.exe

  • log_directory

    Logs

  • reconnect_delay

    3000

  • startup_key

    Client Startup

  • subdirectory

    SubDir

Targets

    • Target

      Client-builttttt.exe

    • Size

      3.1MB

    • MD5

      6008b1f40ce25519bacd9a12f89755df

    • SHA1

      e38e22911d1baebae439caf4d5556143927e3a02

    • SHA256

      33ec7881247e8bd2bb40bb8c3f54b8e18d6c4f562513e976170de401230a50f7

    • SHA512

      133aea39eb9617aa968c33add336304a1b1796ba1945db7ad7b6748d3463e77dbb405ff3755f4dc1f6d3de37eec870d9b01c3dcbaa0ff399f02e86174ec5a2ce

    • SSDEEP

      49152:Sv/I22SsaNYfdPBldt698dBcjHghGmvBToGduNTHHB72eh2NT:SvQ22SsaNYfdPBldt6+dBcjHghGmv5e

    • Quasar RAT

      Quasar is an open source Remote Access Tool.

    • Quasar payload

    • Executes dropped EXE

    • Drops file in System32 directory

MITRE ATT&CK Enterprise v15

Tasks