Overview

overview

10

Static

static

10

Client-built.exe

windows7-x64

10

Client-built.exe

windows10-2004-x64

10

Sharing

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General

  • Target

    Client-built.exe

  • Size

    3.1MB

  • Sample

    241226-txsjxs1jfm

  • MD5

    740d9f35b37dd1557744d0d1df0ae2a6

  • SHA1

    fe55e2e2dc057298018a0ed7211096de0c014e0e

  • SHA256

    cc4c02376c24053d287c965105bb92c236bbefea2dcff15cdf1c45b183246a8f

  • SHA512

    8b7fb45bc4c44245f157225431aea64e8d600ee5441c3e8d0197d2ba366bf7ffc6c9a321323ba704b46f5f104d9f5d645c1f680223d38022605fbf182cf4e0cd

  • SSDEEP

    49152:HvAG42pda6D+/PjlLOlg6yQipV3eRJ6/bR3LoGdtTHHB72eh2NT:HvD42pda6D+/PjlLOlZyQipV3eRJ6R

Score
10/10
quasaroffice04discoveryspywaretrojan

Malware Config

Extracted

Family

quasar

Version

1.4.1

Botnet

Office04

C2

https://stable-notably-hound.ngrok-free.app:4782

Mutex

59d0faf1-ae3f-4d2f-9c0f-631501d0027c

Attributes
  • encryption_key

    A5F0EE2DBE7A3009387617912AFB48C127E2B576

  • install_name

    Client.exe

  • log_directory

    Logs

  • reconnect_delay

    3000

  • startup_key

    Quasar Client Startup

  • subdirectory

    SubDir

Targets

    • Target

      Client-built.exe

    • Size

      3.1MB

    • MD5

      740d9f35b37dd1557744d0d1df0ae2a6

    • SHA1

      fe55e2e2dc057298018a0ed7211096de0c014e0e

    • SHA256

      cc4c02376c24053d287c965105bb92c236bbefea2dcff15cdf1c45b183246a8f

    • SHA512

      8b7fb45bc4c44245f157225431aea64e8d600ee5441c3e8d0197d2ba366bf7ffc6c9a321323ba704b46f5f104d9f5d645c1f680223d38022605fbf182cf4e0cd

    • SSDEEP

      49152:HvAG42pda6D+/PjlLOlg6yQipV3eRJ6/bR3LoGdtTHHB72eh2NT:HvD42pda6D+/PjlLOlZyQipV3eRJ6R

    Score
    10/10
    quasaroffice04discoveryspywaretrojan

    • Quasar RAT

      Quasar is an open source Remote Access Tool.

      trojanspywarequasar

    • Quasar family

      quasar

    • Quasar payload

    • Checks computer location settings

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

    behavioral1behavioral2

MITRE ATT&CK Enterprise v15

Tasks