Overview

overview

10

Static

static

10

Client-built.exe

windows10-2004-x64

10

Client-built.exe

windows11-21h2-x64

10

Sharing

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General

  • Target

    Client-built.exe

  • Size

    3.1MB

  • Sample

    240628-ca1tcaxeql

  • MD5

    8b6ea83a3c031a60b36324a02fb0e610

  • SHA1

    9716678978d300443d3cc2a757410489c5c10760

  • SHA256

    a847f4126ae5f0d337e772adfae8e9a2c95b6056e6153f36c5f36f93105f84ec

  • SHA512

    02944ec71aa93e7db557baca37fb569170cf43a0f25b95e21843cec6bd59d2773cadefef49d68ea7065808024e91f5ff374a355f422e9f48fd2ae5734cbb292a

  • SSDEEP

    49152:iv4t62XlaSFNWPjljiFa2RoUYINFnU0Bx3EoGdXinTHHB72eh2NT:ivU62XlaSFNWPjljiFXRoUYIXUHH

Score
10/10
quasaroffice04spywaretrojan

Malware Config

Extracted

Family

quasar

Version

1.4.1

Botnet

Office04

C2

10.0.0.21:4782

Mutex

345650a9-273e-4187-b07b-92bd3be96cfb

Attributes
  • encryption_key

    01B099D258EFB3A3BEB2CAB36B11707A9FD8D1F3

  • install_name

    playertraka.exe

  • log_directory

    Logs

  • reconnect_delay

    3000

  • startup_key

    Quasar Client Startup

  • subdirectory

    SubDir

Targets

    • Target

      Client-built.exe

    • Size

      3.1MB

    • MD5

      8b6ea83a3c031a60b36324a02fb0e610

    • SHA1

      9716678978d300443d3cc2a757410489c5c10760

    • SHA256

      a847f4126ae5f0d337e772adfae8e9a2c95b6056e6153f36c5f36f93105f84ec

    • SHA512

      02944ec71aa93e7db557baca37fb569170cf43a0f25b95e21843cec6bd59d2773cadefef49d68ea7065808024e91f5ff374a355f422e9f48fd2ae5734cbb292a

    • SSDEEP

      49152:iv4t62XlaSFNWPjljiFa2RoUYINFnU0Bx3EoGdXinTHHB72eh2NT:ivU62XlaSFNWPjljiFXRoUYIXUHH

    Score
    10/10
    quasaroffice04spywaretrojan

    • Quasar RAT

      Quasar is an open source Remote Access Tool.

      trojanspywarequasar

    • Quasar payload

    • Executes dropped EXE

    behavioral1behavioral2

MITRE ATT&CK Matrix ATT&CK v13

Initial Access

Execution

Scheduled Task/Job

1
T1053

Scheduled Task

1
T1053.005

Persistence

Scheduled Task/Job

1
T1053

Scheduled Task

1
T1053.005

Privilege Escalation

Scheduled Task/Job

1
T1053

Scheduled Task

1
T1053.005

Defense Evasion

Credential Access

Discovery

Query Registry

1
T1012

Lateral Movement

Collection

Exfiltration

Command and Control

Impact

Resource Development

Reconnaissance

Tasks