Overview

overview

10

Static

static

10

Client-built.exe

windows10-1703-x64

10

Client-built.exe

windows10-2004-x64

Client-built.exe

windows11-21h2-x64

Sharing

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General

  • Target

    Client-built.exe

  • Size

    3.1MB

  • Sample

    241017-317yfstfnc

  • MD5

    4993cdfc1ef30c150ca20742d088cbd2

  • SHA1

    288ac4b4180095a9e861ea515003e5444d159a1a

  • SHA256

    4c64099954d9c5b52e0a8e6f4e9c8ef77d0ec794e0aa961458c8d6197dd85f2a

  • SHA512

    fe4ee1108d0703896915ea1ded61200ab6b435644993a1b512a5c5bcae8f4fc36f9400b1dfa3eea6aa9f93534f5dfac37a0a06f1543fedfa90e878aa2505a2b2

  • SSDEEP

    49152:Ujrn5bI/WZUWXUm40iEBbPldJfAN3UR0GEbRxOoGVmTHHB72eh2NT:Ujj5bI/WZUiF40iEBbPldJfAN3UR0GN

Score
10/10
quasaroffice04spywaretrojan

Malware Config

Extracted

Family

quasar

Version

1.4.1

Botnet

Office04

C2

Name123forreal-31171.portmap.host:31171

Mutex

f9634259-eba6-40ac-8644-2c8e433257e9

Attributes
  • encryption_key

    5FD1DA98B24B21C2214C328FD3F0A48F15BBCD2B

  • install_name

    Client.exe

  • log_directory

    Logs

  • reconnect_delay

    3000

  • startup_key

    Window Defender Startup

  • subdirectory

    SubDir

Targets

    • Target

      Client-built.exe

    • Size

      3.1MB

    • MD5

      4993cdfc1ef30c150ca20742d088cbd2

    • SHA1

      288ac4b4180095a9e861ea515003e5444d159a1a

    • SHA256

      4c64099954d9c5b52e0a8e6f4e9c8ef77d0ec794e0aa961458c8d6197dd85f2a

    • SHA512

      fe4ee1108d0703896915ea1ded61200ab6b435644993a1b512a5c5bcae8f4fc36f9400b1dfa3eea6aa9f93534f5dfac37a0a06f1543fedfa90e878aa2505a2b2

    • SSDEEP

      49152:Ujrn5bI/WZUWXUm40iEBbPldJfAN3UR0GEbRxOoGVmTHHB72eh2NT:Ujj5bI/WZUiF40iEBbPldJfAN3UR0GN

    Score
    10/10
    quasaroffice04spywaretrojan

    • Quasar RAT

      Quasar is an open source Remote Access Tool.

      trojanspywarequasar

    • Quasar payload

    • Executes dropped EXE

    behavioral1behavioral2behavioral3

MITRE ATT&CK Enterprise v15

Tasks