General

  • Target

    Client-built.exe

  • Size

    3.1MB

  • Sample

    240417-ss5g9adg93

  • MD5

    eb8790c82d5096b84022449c2298c62a

  • SHA1

    12030a6f4988fb744328bc1963c7017207e40276

  • SHA256

    5bc8c6aa7ccb11de2b19cabc08c096025da18e7898c5e8227ef109c266820f82

  • SHA512

    d4d7ac397e023e6c08dfd6681e802d4c52d56a45a4e66acd53bc0138d3ed45f3930ef0d90cdeaafcf478d08ecab28cae61ffe5c571fa4c37be39497f16891464

  • SSDEEP

    49152:WvIt62XlaSFNWPjljiFa2RoUYIruW+dpfYoGdizZDTHHB72eh2NT:WvE62XlaSFNWPjljiFXRoUYI6W9

Malware Config

Extracted

Family

quasar

Version

1.4.1

Botnet

Office04

C2

192.168.1.240:4782

Mutex

fcdb4cfb-dc40-4f51-b2c7-f723b5404e35

Attributes
  • encryption_key

    1074AFFC8845D6B93DCAD37B9C170AE9CD58D08A

  • install_name

    Client.exe

  • log_directory

    Logs

  • reconnect_delay

    3000

  • startup_key

    Windowsstartup

  • subdirectory

    SubDir

Targets

    • Target

      Client-built.exe

    • Size

      3.1MB

    • MD5

      eb8790c82d5096b84022449c2298c62a

    • SHA1

      12030a6f4988fb744328bc1963c7017207e40276

    • SHA256

      5bc8c6aa7ccb11de2b19cabc08c096025da18e7898c5e8227ef109c266820f82

    • SHA512

      d4d7ac397e023e6c08dfd6681e802d4c52d56a45a4e66acd53bc0138d3ed45f3930ef0d90cdeaafcf478d08ecab28cae61ffe5c571fa4c37be39497f16891464

    • SSDEEP

      49152:WvIt62XlaSFNWPjljiFa2RoUYIruW+dpfYoGdizZDTHHB72eh2NT:WvE62XlaSFNWPjljiFXRoUYI6W9

    • Quasar RAT

      Quasar is an open source Remote Access Tool.

    • Quasar payload

    • Executes dropped EXE

MITRE ATT&CK Enterprise v15

Tasks