General

  • Target

    Client-built.exe

  • Size

    3.1MB

  • Sample

    250101-13y28axkh1

  • MD5

    5722eb2897c6a41e56fcc3173d9adf78

  • SHA1

    a1fa064390fbe44cf7fb1eef8a4e68f26d4a5ef3

  • SHA256

    6e32a831742951b814f3826c7377094db7ea20f81508043b946e3e4df6c5b162

  • SHA512

    5ca756e5079b2a7498c6dba25da3717a467437fee713642dabafa8417040728b0531450a877a736ba3a248c7a6b33e317b7e795e437a5cc81cb6ad9e3a0227a7

  • SSDEEP

    49152:Kv3I22SsaNYfdPBldt698dBcjHDxM/doGdq1THHB72eh2NT:Kv422SsaNYfdPBldt6+dBcjHDxMVa

Malware Config

Extracted

Family

quasar

Version

1.4.1

Botnet

first

C2

ZyloX-37288.portmap.host:37288

Mutex

44382739-6e8e-4a03-b838-6ed9f8f4bf36

Attributes
  • encryption_key

    59DD70006F5E5424ACBA442199524AA9815F439E

  • install_name

    Calculator.exe

  • log_directory

    Logs

  • reconnect_delay

    3000

  • startup_key

    RtkAudUService86

  • subdirectory

    Calculator_UWP

Targets

    • Target

      Client-built.exe

    • Size

      3.1MB

    • MD5

      5722eb2897c6a41e56fcc3173d9adf78

    • SHA1

      a1fa064390fbe44cf7fb1eef8a4e68f26d4a5ef3

    • SHA256

      6e32a831742951b814f3826c7377094db7ea20f81508043b946e3e4df6c5b162

    • SHA512

      5ca756e5079b2a7498c6dba25da3717a467437fee713642dabafa8417040728b0531450a877a736ba3a248c7a6b33e317b7e795e437a5cc81cb6ad9e3a0227a7

    • SSDEEP

      49152:Kv3I22SsaNYfdPBldt698dBcjHDxM/doGdq1THHB72eh2NT:Kv422SsaNYfdPBldt6+dBcjHDxMVa

    • Quasar RAT

      Quasar is an open source Remote Access Tool.

    • Quasar family

    • Quasar payload

    • Executes dropped EXE

MITRE ATT&CK Enterprise v15

Tasks