General

  • Target

    hello.exe

  • Size

    3.1MB

  • Sample

    240516-3tf66afb58

  • MD5

    b92b7e16f21a97fbe21c4c45deb00587

  • SHA1

    e4af65acfac45c31dceacdf9a2e1d18cde2537c2

  • SHA256

    651ed1a03871a47dcf548e56fe4cefb8862a89a27f01f2e377bd68dfe1ca531f

  • SHA512

    7c5813bf73ee7deca78774861b2632d4a0fb7b3b62996cc54ae0b16baa62a0f360f31fa810b73c5fc922321b6ce0807e69bc02e35f98d7f350086283f8836931

  • SSDEEP

    49152:zvOlL26AaNeWgPhlmVqvMQ7XSK8Hzh7mzBSoGdtkTHHB72eh2NT:zv+L26AaNeWgPhlmVqkQ7XSK2zhv

Malware Config

Extracted

Family

quasar

Version

1.4.1

Botnet

Test

C2

47.134.26.200:4782

193.161.193.99:23325

Mutex

9cabbafb-503b-49f1-ab22-adc756455c10

Attributes
  • encryption_key

    8B93C77AC1C58EA80A3327E9FD26246A79EF3B8E

  • install_name

    Client.exe

  • log_directory

    Logs

  • reconnect_delay

    3000

  • startup_key

    MS Build Tools

  • subdirectory

    Microsoft-Build-Tools

Targets

    • Target

      hello.exe

    • Size

      3.1MB

    • MD5

      b92b7e16f21a97fbe21c4c45deb00587

    • SHA1

      e4af65acfac45c31dceacdf9a2e1d18cde2537c2

    • SHA256

      651ed1a03871a47dcf548e56fe4cefb8862a89a27f01f2e377bd68dfe1ca531f

    • SHA512

      7c5813bf73ee7deca78774861b2632d4a0fb7b3b62996cc54ae0b16baa62a0f360f31fa810b73c5fc922321b6ce0807e69bc02e35f98d7f350086283f8836931

    • SSDEEP

      49152:zvOlL26AaNeWgPhlmVqvMQ7XSK8Hzh7mzBSoGdtkTHHB72eh2NT:zv+L26AaNeWgPhlmVqkQ7XSK2zhv

    • Quasar RAT

      Quasar is an open source Remote Access Tool.

    • Quasar payload

    • Executes dropped EXE

MITRE ATT&CK Enterprise v15

Tasks