Resubmissions

27-01-2025 08:57

250127-kw4q5aslcp 10

27-01-2025 08:47

250127-kqb4xssjbn 10

26-01-2025 14:35

250126-rydq2stpev 10

26-01-2025 14:21

250126-rpa9kavmdn 10

General

  • Target

    Quasar.v1.4.1.zip

  • Size

    3.3MB

  • Sample

    250126-rpa9kavmdn

  • MD5

    13aa4bf4f5ed1ac503c69470b1ede5c1

  • SHA1

    c0b7dadff8ac37f6d9fd00ae7f375e12812bfc00

  • SHA256

    4cdeb2eae1cec1ab07077142313c524e9cf360cdec63497538c4405c2d8ded62

  • SHA512

    767b03e4e0c2a97cb0282b523bcad734f0c6d226cd1e856f6861e6ae83401d0d30946ad219c8c5de3c90028a0141d3dc0111c85e0a0952156cf09e189709fa7d

  • SSDEEP

    49152:lYLmNgMh/9yUsRFeWMyYISDSwtfxZQNemi57PdHmeFINp/lFnsDbNFNepL6DJo+J:mL9U1yUUQykOQ91XFYBlR8P9d5uNJo9

Malware Config

Extracted

Family

quasar

Attributes
  • reconnect_delay

    5000

Extracted

Family

quasar

Version

1.4.1

Botnet

Office04

C2

192.168.1.2:4782

localhost:4782

10.127.1.227:4782

Mutex

9555d82a-536c-48e7-944e-cc032c7968f2

Attributes
  • encryption_key

    F5DC00B6ABDE0A52DD7A8E17BF5618C7C39FE8D5

  • install_name

    Client.exe

  • log_directory

    Logs

  • reconnect_delay

    3000

  • startup_key

    Quasar Client Startup

  • subdirectory

    SubDir

Targets

    • Target

      Quasar.v1.4.1.zip

    • Size

      3.3MB

    • MD5

      13aa4bf4f5ed1ac503c69470b1ede5c1

    • SHA1

      c0b7dadff8ac37f6d9fd00ae7f375e12812bfc00

    • SHA256

      4cdeb2eae1cec1ab07077142313c524e9cf360cdec63497538c4405c2d8ded62

    • SHA512

      767b03e4e0c2a97cb0282b523bcad734f0c6d226cd1e856f6861e6ae83401d0d30946ad219c8c5de3c90028a0141d3dc0111c85e0a0952156cf09e189709fa7d

    • SSDEEP

      49152:lYLmNgMh/9yUsRFeWMyYISDSwtfxZQNemi57PdHmeFINp/lFnsDbNFNepL6DJo+J:mL9U1yUUQykOQ91XFYBlR8P9d5uNJo9

    • Quasar RAT

      Quasar is an open source Remote Access Tool.

    • Quasar family

    • 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