General

  • Target

    BootstrapperV1.11.exe

  • Size

    3.1MB

  • Sample

    240801-cg372s1ajg

  • MD5

    f9da53f4f072c15dbf78b015a10575a2

  • SHA1

    96ea78662e9f44d6b4dcbbdc05bb4026188697ff

  • SHA256

    dd37983f893fe6aec0c2721e910896122de0549306fbc60277c3adf8a991bd0c

  • SHA512

    be39c735e3aa3a361b3ad2fd766182df0fa2dabbb50c3793f8d92d3c5ee1243d0111e2b40f47a2a68ab0a4e107bb50e411281b6d91fb4a17d0dfb8dd761dfa6f

  • SSDEEP

    49152:2vHY52fyaSZOrPWluWBuGG5g5hYPV8mC9QoGErqTHHB72eh2NT:2v452fyaSZOrPWluWBDG5g5hYPVBq

Malware Config

Extracted

Family

quasar

Version

1.4.1

Botnet

Office04

C2

10.2.0.2:4782

Mutex

cc6f57e2-b224-4b7b-bfae-0b1e6f95f22f

Attributes
  • encryption_key

    48E15FD52A3A24CE1F767DA2AD76CB0B862CC879

  • install_name

    Client.exe

  • log_directory

    Logs

  • reconnect_delay

    3000

  • startup_key

    Solara

  • subdirectory

    SubDir

Targets

    • Target

      BootstrapperV1.11.exe

    • Size

      3.1MB

    • MD5

      f9da53f4f072c15dbf78b015a10575a2

    • SHA1

      96ea78662e9f44d6b4dcbbdc05bb4026188697ff

    • SHA256

      dd37983f893fe6aec0c2721e910896122de0549306fbc60277c3adf8a991bd0c

    • SHA512

      be39c735e3aa3a361b3ad2fd766182df0fa2dabbb50c3793f8d92d3c5ee1243d0111e2b40f47a2a68ab0a4e107bb50e411281b6d91fb4a17d0dfb8dd761dfa6f

    • SSDEEP

      49152:2vHY52fyaSZOrPWluWBuGG5g5hYPV8mC9QoGErqTHHB72eh2NT:2v452fyaSZOrPWluWBDG5g5hYPVBq

    • Quasar RAT

      Quasar is an open source Remote Access Tool.

    • Quasar payload

    • Executes dropped EXE

MITRE ATT&CK Enterprise v15

Tasks