General

  • Target

    frivirus.exe

  • Size

    1.8MB

  • Sample

    250419-s1hy8asnt2

  • MD5

    22b6ce3fb5468a1a3b815fd49cef9e2a

  • SHA1

    eb0e6a30595d33f486a31875ab6987589e62a1cf

  • SHA256

    03168b7fc07d7572179b03b923c22200b259d4e01754e3e0df0118206ac9c2b9

  • SHA512

    e79723c4e0a62dac02f2f2bcbb487527ad053069e3b6065a13822165173823b4d5b326293ebe99a5c58b1409b33e904415c0816a9d4401f4fdd518d452720530

  • SSDEEP

    24576:cl157A4S2eWBRwRR16zhHIPbcNK0KKm77yviUSQaZaOwI55l2S62r9exnd7XrwSZ:cb5t7wR2EgKKm77LrwCB6TFrwM9

Malware Config

Extracted

Family

quasar

Attributes
  • encryption_key

    F5F31C46BB15BEDDB643667BC441A55E746DE4B8

  • reconnect_delay

    0

  • startup_key

    ��0��c�����ƴ�

Targets

    • Target

      frivirus.exe

    • Size

      1.8MB

    • MD5

      22b6ce3fb5468a1a3b815fd49cef9e2a

    • SHA1

      eb0e6a30595d33f486a31875ab6987589e62a1cf

    • SHA256

      03168b7fc07d7572179b03b923c22200b259d4e01754e3e0df0118206ac9c2b9

    • SHA512

      e79723c4e0a62dac02f2f2bcbb487527ad053069e3b6065a13822165173823b4d5b326293ebe99a5c58b1409b33e904415c0816a9d4401f4fdd518d452720530

    • SSDEEP

      24576:cl157A4S2eWBRwRR16zhHIPbcNK0KKm77yviUSQaZaOwI55l2S62r9exnd7XrwSZ:cb5t7wR2EgKKm77LrwCB6TFrwM9

    • Quasar RAT

      Quasar is an open source Remote Access Tool.

    • Quasar family

    • Quasar payload

    • Drops file in Drivers directory

    • Executes dropped EXE

    • Reads user/profile data of web browsers

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

    • Drops file in System32 directory

    • Sets desktop wallpaper using registry

MITRE ATT&CK Enterprise v16

Tasks