General

  • Target

    Client-built.exe

  • Size

    3.1MB

  • Sample

    241109-gyvdpazanc

  • MD5

    cbd1f0ebb0cc7ab3065577d7836e094d

  • SHA1

    6cbceb387dc251d5d362968bdde796b75e32a7e2

  • SHA256

    79f300b09c37db91ebf1028e55b2badc1892e858ed769a506b6a0a0b687c4eb0

  • SHA512

    305544157ac69d70b7dffb3ecdc28d03644abea39205b1ef4c0e84d3c648636882ceac3a825959523afd991f4d89bf248c5d64b581dfc513b1670db268cec531

  • SSDEEP

    49152:rv+I22SsaNYfdPBldt698dBcjHLdRJ6JbR3LoGdgTHHB72eh2NT:rvz22SsaNYfdPBldt6+dBcjHLdRJ6L

Malware Config

Extracted

Family

quasar

Version

1.4.1

Botnet

Office04

C2

192.168.0.5:3389

184.190.169.22:3389

Mutex

e953a12b-d12f-4655-9196-2a906680e711

Attributes
  • encryption_key

    F7A4C0B83260582C04F31A9EF99110BA6BD39592

  • install_name

    scvhost.exe

  • log_directory

    Logs

  • reconnect_delay

    3000

  • startup_key

    scvhost

  • subdirectory

    js-JN

Targets

    • Target

      Client-built.exe

    • Size

      3.1MB

    • MD5

      cbd1f0ebb0cc7ab3065577d7836e094d

    • SHA1

      6cbceb387dc251d5d362968bdde796b75e32a7e2

    • SHA256

      79f300b09c37db91ebf1028e55b2badc1892e858ed769a506b6a0a0b687c4eb0

    • SHA512

      305544157ac69d70b7dffb3ecdc28d03644abea39205b1ef4c0e84d3c648636882ceac3a825959523afd991f4d89bf248c5d64b581dfc513b1670db268cec531

    • SSDEEP

      49152:rv+I22SsaNYfdPBldt698dBcjHLdRJ6JbR3LoGdgTHHB72eh2NT:rvz22SsaNYfdPBldt6+dBcjHLdRJ6L

    • Quasar RAT

      Quasar is an open source Remote Access Tool.

    • Quasar family

    • Quasar payload

    • Executes dropped EXE

    • Drops file in System32 directory

MITRE ATT&CK Enterprise v15

Tasks