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

    241029-2zc61s1gjd

  • MD5

    cd8d41167dc2fae9b0ae6a8648d5070f

  • SHA1

    97a475e752d8bbd6a66bb2231b5ab830f86fdc06

  • SHA256

    9cee560203681db0106de96c3fd5ed335bed6abacd9724a641b42743adfb6220

  • SHA512

    d107718753acdc5495222d28cb4323b81dc7a30f5891b37cb95d39f58302e3c5535defe14e01c9602ec8f83e4a6df8972ae1281fe326347e7a6456536dce9c9b

  • SSDEEP

    49152:Pvht62XlaSFNWPjljiFa2RoUYI3xOEMkZk/JxuoGdrPTHHB72eh2NT:PvL62XlaSFNWPjljiFXRoUYI3xM0

Score
10/10
quasaroffice04discoverypersistencespywaretrojan

Malware Config

Extracted

Family

quasar

Version

1.4.1

Botnet

Office04

C2

192.168.1.28:4782

Mutex

03ef2b9a-5389-4312-b3d3-9b6f68cc5386

Attributes
  • encryption_key

    F8A900CD75D848E74023B3A66FA8AA5469C97692

  • install_name

    Client.exe

  • log_directory

    Logs

  • reconnect_delay

    3000

  • startup_key

    .

  • subdirectory

    SubDir

Targets

    • Target

      Client-built.exe

    • Size

      3.1MB

    • MD5

      cd8d41167dc2fae9b0ae6a8648d5070f

    • SHA1

      97a475e752d8bbd6a66bb2231b5ab830f86fdc06

    • SHA256

      9cee560203681db0106de96c3fd5ed335bed6abacd9724a641b42743adfb6220

    • SHA512

      d107718753acdc5495222d28cb4323b81dc7a30f5891b37cb95d39f58302e3c5535defe14e01c9602ec8f83e4a6df8972ae1281fe326347e7a6456536dce9c9b

    • SSDEEP

      49152:Pvht62XlaSFNWPjljiFa2RoUYI3xOEMkZk/JxuoGdrPTHHB72eh2NT:PvL62XlaSFNWPjljiFXRoUYI3xM0

    Score
    10/10
    quasaroffice04discoverypersistencespywaretrojan

    • 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

    • Adds Run key to start application

      persistence
    behavioral1behavioral2

MITRE ATT&CK Enterprise v15

Tasks