General

  • Target

    832c978576aca4163e3c3127e622316794836b1e634b4128797fc9493ff57105

  • Size

    3.2MB

  • Sample

    241230-a22hvaskcj

  • MD5

    a385e16864e1ac30f23dd08e87b93319

  • SHA1

    987c3448486e401936e928abc52cf80780fb2d37

  • SHA256

    832c978576aca4163e3c3127e622316794836b1e634b4128797fc9493ff57105

  • SHA512

    e2099df125c1ca9dfbaddd6ec89dadf94fcce7dd8c298958a53a8b0d0e52d91c0b26f8d1746ec72d5527594d678ec19c29f4849994d268fbdb6200a5c13c7699

  • SSDEEP

    49152:tgviI22SsaNYfdPBldt698dBcjHq1SQoGv5lpTHHB72eh2NTf:mvv22SsaNYfdPBldt6+dBcjHq19x8

Malware Config

Extracted

Family

quasar

Version

1.4.1

Botnet

Office04

C2

193.161.193.99:43242

Mutex

45bfb701-bea2-411a-948d-9a6abe001f83

Attributes
  • encryption_key

    80594967BC0A4839C316A44D62DE36E9BF18177F

  • install_name

    SYSTEM26.exe

  • log_directory

    Logs

  • reconnect_delay

    3000

  • startup_key

    Quasar Client Startup

  • subdirectory

    SubDir

Targets

    • Target

      832c978576aca4163e3c3127e622316794836b1e634b4128797fc9493ff57105

    • Size

      3.2MB

    • MD5

      a385e16864e1ac30f23dd08e87b93319

    • SHA1

      987c3448486e401936e928abc52cf80780fb2d37

    • SHA256

      832c978576aca4163e3c3127e622316794836b1e634b4128797fc9493ff57105

    • SHA512

      e2099df125c1ca9dfbaddd6ec89dadf94fcce7dd8c298958a53a8b0d0e52d91c0b26f8d1746ec72d5527594d678ec19c29f4849994d268fbdb6200a5c13c7699

    • SSDEEP

      49152:tgviI22SsaNYfdPBldt698dBcjHq1SQoGv5lpTHHB72eh2NTf:mvv22SsaNYfdPBldt6+dBcjHq19x8

    • Modifies visiblity of hidden/system files in Explorer

    • Quasar RAT

      Quasar is an open source Remote Access Tool.

    • Quasar family

    • Quasar payload

    • Executes dropped EXE

    • Loads dropped DLL

    • Adds Run key to start application

    • Drops file in System32 directory

MITRE ATT&CK Enterprise v15

Tasks