General

  • Target

    Client-built.exe

  • Size

    3.1MB

  • Sample

    241108-wr8p3azjbp

  • MD5

    f4b0be81680b72bae9c31f3225149616

  • SHA1

    12dca5c6e3c2e7a91ba8e30ec4e56a888d3bfa8e

  • SHA256

    5900b0e5f972927db833977bee140aa7f10863eeb40c8f7e4742c6c8bd3a3063

  • SHA512

    1aeb4459bb0d558194033c451f631cfd75c9941a16c33aace8808816e36ddc3322a5e17152629594014d8e9f50b6335edc673dcbc67f3a3a32d272d233107d17

  • SSDEEP

    49152:3vflL26AaNeWgPhlmVqvMQ7XSKwYEb6LxpeoGddLTHHB72eh2NT:3vtL26AaNeWgPhlmVqkQ7XSKwYEbPN

Malware Config

Extracted

Family

quasar

Version

1.4.1

Botnet

Client

C2

192.168.2.106:9845

Mutex

886f65bf-be67-4863-9244-e6f9bebe60cf

Attributes
  • encryption_key

    4723FE2DBDCD0127EBB880CBCA3A5D063F882349

  • install_name

    WindowsUpdateConsole.exe

  • log_directory

    Logs

  • reconnect_delay

    3000

  • startup_key

    WindowsSystemRun

  • subdirectory

    SubDir

Targets

    • Target

      Client-built.exe

    • Size

      3.1MB

    • MD5

      f4b0be81680b72bae9c31f3225149616

    • SHA1

      12dca5c6e3c2e7a91ba8e30ec4e56a888d3bfa8e

    • SHA256

      5900b0e5f972927db833977bee140aa7f10863eeb40c8f7e4742c6c8bd3a3063

    • SHA512

      1aeb4459bb0d558194033c451f631cfd75c9941a16c33aace8808816e36ddc3322a5e17152629594014d8e9f50b6335edc673dcbc67f3a3a32d272d233107d17

    • SSDEEP

      49152:3vflL26AaNeWgPhlmVqvMQ7XSKwYEb6LxpeoGddLTHHB72eh2NT:3vtL26AaNeWgPhlmVqkQ7XSKwYEbPN

    • Quasar RAT

      Quasar is an open source Remote Access Tool.

    • Quasar family

    • Quasar payload

    • Executes dropped EXE

    • Drops file in System32 directory

MITRE ATT&CK Enterprise v15

Tasks