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

    250209-xyhb5azmcr

  • MD5

    528aac487e4cb55751f89428aa946f35

  • SHA1

    1d4a43e2df64526a88ba7a1e3abc4059d02bb6d2

  • SHA256

    c8ccabab4b9bd78e4ddbd6e007a4d5472b90713eee4aff89cddb4f86d95b8884

  • SHA512

    c7d39ecf98a4dd2ba0cd7341ece289934e5e658e1006c4d7cb3713da4ca0bae6feb5a4e544c34c265673b5ea211c877f5b23b2dad15e89cf8502b695ba2742b9

  • SSDEEP

    49152:mv2I22SsaNYfdPBldt698dBcjHyxRcmCZLoed3UfyTHHB72eh2NT:mvb22SsaNYfdPBldt6+dBcjHyxRGR

Score
10/10
quasaroffice01discoveryspywaretrojan

Malware Config

Extracted

Family

quasar

Version

1.4.1

Botnet

Office01

C2

sabaf-38910.portmap.host:38910

Mutex

f7356d60-951e-494a-a901-2e12bb084129

Attributes
  • encryption_key

    5C7AC20AEB149D8BC06141FCF79866AD6E3847AD

  • install_name

    RuntimeBroker.exe

  • log_directory

    Logs

  • reconnect_delay

    3000

  • startup_key

    RunTimeBroker

  • subdirectory

    System32

Targets

    • Target

      Client-built.exe

    • Size

      3.1MB

    • MD5

      528aac487e4cb55751f89428aa946f35

    • SHA1

      1d4a43e2df64526a88ba7a1e3abc4059d02bb6d2

    • SHA256

      c8ccabab4b9bd78e4ddbd6e007a4d5472b90713eee4aff89cddb4f86d95b8884

    • SHA512

      c7d39ecf98a4dd2ba0cd7341ece289934e5e658e1006c4d7cb3713da4ca0bae6feb5a4e544c34c265673b5ea211c877f5b23b2dad15e89cf8502b695ba2742b9

    • SSDEEP

      49152:mv2I22SsaNYfdPBldt698dBcjHyxRcmCZLoed3UfyTHHB72eh2NT:mvb22SsaNYfdPBldt6+dBcjHyxRGR

    Score
    10/10
    quasaroffice01spywaretrojandiscovery

    • Quasar RAT

      Quasar is an open source Remote Access Tool.

      trojanspywarequasar

    • Quasar family

      quasar

    • Quasar payload

    • Downloads MZ/PE file

    • Executes dropped EXE

    • Drops file in System32 directory

    behavioral1behavioral2

MITRE ATT&CK Enterprise v15

Tasks