General

  • Target

    Client-built.exe

  • Size

    3.1MB

  • Sample

    240805-e1aqys1arg

  • MD5

    4290449c878559b7cb44282906d40519

  • SHA1

    e5c1fd8659eab79d82ff98d71ec59712f175dbff

  • SHA256

    01b172d69a0ce6bdf3f29f89b58e18474d07d7c57f22ac4633fdb2cfa794cb6c

  • SHA512

    5001ed29fb746c1691bcd784b6ad88ae1a4e26fa614d62225330a1ae4fe5409be4637233ceb3e7615a4aee1977f3e82e94cf659f3f5f9c544db06e5d0c6e6efd

  • SSDEEP

    49152:NHobtR1o2PmNXo7WCr5Kg++OatXrYdLTHHB72eh2NT:NHmRvmNXo7WCr5Kg++OK

Malware Config

Extracted

Family

quasar

Version

1.4.1

Botnet

Office04

C2

147.185.221.20:18563

147.185.221.20:9835

Mutex

c2e1b18a-ce93-436d-ad8b-21bf89015e19

Attributes
  • encryption_key

    9E968F05BD874BA1BE086FD1774A027473823F49

  • 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

      4290449c878559b7cb44282906d40519

    • SHA1

      e5c1fd8659eab79d82ff98d71ec59712f175dbff

    • SHA256

      01b172d69a0ce6bdf3f29f89b58e18474d07d7c57f22ac4633fdb2cfa794cb6c

    • SHA512

      5001ed29fb746c1691bcd784b6ad88ae1a4e26fa614d62225330a1ae4fe5409be4637233ceb3e7615a4aee1977f3e82e94cf659f3f5f9c544db06e5d0c6e6efd

    • SSDEEP

      49152:NHobtR1o2PmNXo7WCr5Kg++OatXrYdLTHHB72eh2NT:NHmRvmNXo7WCr5Kg++OK

    • 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