General

  • Target

    DDOS MACHINE.exe

  • Size

    3.1MB

  • Sample

    240723-zvczcaycjr

  • MD5

    9ae854a885e4698de5e4cca377dfe7d4

  • SHA1

    599cbf8945c67bbdacc0e8c9dffdd09db9b76af8

  • SHA256

    bc308a0c58243b24782c5087caed3326fcb67561a4073adb4107b6f9cbee99f7

  • SHA512

    1a08452fa94989b0c61b62054492e2511f5fe920093e2854eb815210936870cd3cf66acf4ba21dd1543b664d969c9721a6c50d930aa8bb6a6abbacffd8e27248

  • SSDEEP

    49152:evLY52fyaSZOrPWluWBuGG5g5hlTy3EfsGk/WPJoGdVTHHB72eh2NT:evs52fyaSZOrPWluWBDG5g5hlTysR

Malware Config

Extracted

Family

quasar

Version

1.4.1

Botnet

Office04

C2

siig:4782

Mutex

bfc70cfc-e322-441b-a771-4338fcf604af

Attributes
  • encryption_key

    41575D4A93D1D340B16DEDC351DFE0FF85A5C830

  • install_name

    Client.exe

  • log_directory

    Logs

  • reconnect_delay

    3000

  • startup_key

    Java Updater

  • subdirectory

    SubDir

Targets

    • Target

      DDOS MACHINE.exe

    • Size

      3.1MB

    • MD5

      9ae854a885e4698de5e4cca377dfe7d4

    • SHA1

      599cbf8945c67bbdacc0e8c9dffdd09db9b76af8

    • SHA256

      bc308a0c58243b24782c5087caed3326fcb67561a4073adb4107b6f9cbee99f7

    • SHA512

      1a08452fa94989b0c61b62054492e2511f5fe920093e2854eb815210936870cd3cf66acf4ba21dd1543b664d969c9721a6c50d930aa8bb6a6abbacffd8e27248

    • SSDEEP

      49152:evLY52fyaSZOrPWluWBuGG5g5hlTy3EfsGk/WPJoGdVTHHB72eh2NT:evs52fyaSZOrPWluWBDG5g5hlTysR

    • Quasar RAT

      Quasar is an open source Remote Access Tool.

    • Quasar payload

    • Checks computer location settings

      Looks up country code configured in the registry, likely geofence.

    • Executes dropped EXE

MITRE ATT&CK Enterprise v15

Tasks