General

  • Target

    Client-built.exe

  • Size

    3.1MB

  • Sample

    241114-t1v48a1fnq

  • MD5

    2364bd709ace33ac4144257da2a03282

  • SHA1

    ba2272a8f9417f422ac77d84e41a55a2ad77f980

  • SHA256

    af896d89bd5371a4236a7993a11484ddb5890bea7da569f61519dbe963216a88

  • SHA512

    41cd1b224a9efb2ac3abc12a55963bbf1a7bef36d27c3ec0177cd71d72684eb725120e772500685f448ad32d940f602d5f91ba1cdab0463c154ad64029f42e23

  • SSDEEP

    49152:yvKt62XlaSFNWPjljiFa2RoUYIFxOEMklk/JxxoGdzTHHB72eh2NT:yvi62XlaSFNWPjljiFXRoUYIFx8L

Malware Config

Extracted

Family

quasar

Version

1.4.1

Botnet

Office04

C2

0.tcp.us-cal-1.ngrok.io:19421

Mutex

77c9d407-6130-4e2f-8d22-c4eda6d22b1f

Attributes
  • encryption_key

    210D68A7233E9455E4EEC5A5388A8DF203518D0F

  • install_name

    Client.exe

  • log_directory

    Logs

  • reconnect_delay

    1500

  • startup_key

    wwwwwww

  • subdirectory

    SubDir

Targets

    • Target

      Client-built.exe

    • Size

      3.1MB

    • MD5

      2364bd709ace33ac4144257da2a03282

    • SHA1

      ba2272a8f9417f422ac77d84e41a55a2ad77f980

    • SHA256

      af896d89bd5371a4236a7993a11484ddb5890bea7da569f61519dbe963216a88

    • SHA512

      41cd1b224a9efb2ac3abc12a55963bbf1a7bef36d27c3ec0177cd71d72684eb725120e772500685f448ad32d940f602d5f91ba1cdab0463c154ad64029f42e23

    • SSDEEP

      49152:yvKt62XlaSFNWPjljiFa2RoUYIFxOEMklk/JxxoGdzTHHB72eh2NT:yvi62XlaSFNWPjljiFXRoUYIFx8L

    • Quasar RAT

      Quasar is an open source Remote Access Tool.

    • Quasar family

    • Quasar payload

    • Executes dropped EXE

    • Legitimate hosting services abused for malware hosting/C2

    • Drops file in System32 directory

MITRE ATT&CK Enterprise v15

Tasks