Overview

overview

10

Static

static

10

Client-built.exe

windows7-x64

10

Client-built.exe

windows10-2004-x64

Sharing

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General

  • Target

    Client-built.exe

  • Size

    3.1MB

  • Sample

    241211-eqsh1swkhw

  • MD5

    30fe4e7e33259e52666ca6cd6eb12ee3

  • SHA1

    c5c8506ba00e9416197d39149394fceacf3551ac

  • SHA256

    e190f4cc54506973f7c38fa2cf39148e7bf38887467694d57ae10fc356cd863b

  • SHA512

    67647d16e50623fc2019a0c88295c7d1dfe715b00cce6d3e15098f2b668e55dfc3e62a1d27cdf8f68f2c2a770b1f83c8d7ec28c03fa627f03e9984f62ef46bd8

  • SSDEEP

    49152:rvbI22SsaNYfdPBldt698dBcjHidimwmzstoGdaTHHB72eh2NT:rvk22SsaNYfdPBldt6+dBcjHWim+

Score
10/10
quasaroffice04spywaretrojan

Malware Config

Extracted

Family

quasar

Version

1.4.1

Botnet

Office04

C2

184.98.230.97:4545

Mutex

381fb32a-fd3f-4701-8fca-4b51cb0abac7

Attributes
  • encryption_key

    9D21D822B3655AB7418E123B9807F485C0122440

  • install_name

    Client.exe

  • log_directory

    Logs

  • reconnect_delay

    3000

  • startup_key

    Windows Antivirus

  • subdirectory

    SubDir

Targets

    • Target

      Client-built.exe

    • Size

      3.1MB

    • MD5

      30fe4e7e33259e52666ca6cd6eb12ee3

    • SHA1

      c5c8506ba00e9416197d39149394fceacf3551ac

    • SHA256

      e190f4cc54506973f7c38fa2cf39148e7bf38887467694d57ae10fc356cd863b

    • SHA512

      67647d16e50623fc2019a0c88295c7d1dfe715b00cce6d3e15098f2b668e55dfc3e62a1d27cdf8f68f2c2a770b1f83c8d7ec28c03fa627f03e9984f62ef46bd8

    • SSDEEP

      49152:rvbI22SsaNYfdPBldt698dBcjHidimwmzstoGdaTHHB72eh2NT:rvk22SsaNYfdPBldt6+dBcjHWim+

    Score
    10/10
    quasaroffice04spywaretrojan

    • 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.

    • Executes dropped EXE

    • Drops file in System32 directory

    behavioral1behavioral2

MITRE ATT&CK Enterprise v15

Tasks