Overview

overview

10

Static

static

10

Client-built.exe

windows10-1703-x64

10

Sharing

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General

  • Target

    Client-built.exe

  • Size

    3.1MB

  • Sample

    240422-gtxm9agg3s

  • MD5

    41de983b173011ea0f81bc18257927ea

  • SHA1

    48b40eadc6eca603b8adc15bc38a0b5b9450e56a

  • SHA256

    1db7148b47d7219aa4587138b491a4b4bb41c7d95bfc0bdd152fdd6f1d774edb

  • SHA512

    4efe78911125a02dea2a1e5112ae5869773b95862a104c9a97b4953a9a723898a56638f25cbb8508219896ffee9d5ae5d15d9dd1eb8790c2f28bfea1209a3525

  • SSDEEP

    49152:yvyI22SsaNYfdPBldt698dBcjHBK8wDMfVEoGdATHHB72eh2NT:yvf22SsaNYfdPBldt6+dBcjHBK8wT

Score
10/10
quasaroffice04spywaretrojan

Malware Config

Extracted

Family

quasar

Version

1.4.1

Botnet

Office04

C2

192.168.40.129:4782

Mutex

19c3bb2c-1a75-4589-b738-25f9f15ec087

Attributes
  • encryption_key

    9BD7B5AD8335EC9A1AB45A1EB5FC9CA0CBA10236

  • install_name

    Client.exe

  • log_directory

    Logs

  • reconnect_delay

    3000

  • startup_key

    Quasar Client Startup

  • subdirectory

    SubDir

Targets

    • Target

      Client-built.exe

    • Size

      3.1MB

    • MD5

      41de983b173011ea0f81bc18257927ea

    • SHA1

      48b40eadc6eca603b8adc15bc38a0b5b9450e56a

    • SHA256

      1db7148b47d7219aa4587138b491a4b4bb41c7d95bfc0bdd152fdd6f1d774edb

    • SHA512

      4efe78911125a02dea2a1e5112ae5869773b95862a104c9a97b4953a9a723898a56638f25cbb8508219896ffee9d5ae5d15d9dd1eb8790c2f28bfea1209a3525

    • SSDEEP

      49152:yvyI22SsaNYfdPBldt698dBcjHBK8wDMfVEoGdATHHB72eh2NT:yvf22SsaNYfdPBldt6+dBcjHBK8wT

    Score
    10/10
    quasaroffice04spywaretrojan

    • Quasar RAT

      Quasar is an open source Remote Access Tool.

      trojanspywarequasar

    • Quasar payload

    • Executes dropped EXE

    behavioral1

MITRE ATT&CK Matrix ATT&CK v13

Initial Access

Execution

Scheduled Task/Job

1
T1053

Persistence

Scheduled Task/Job

1
T1053

Privilege Escalation

Scheduled Task/Job

1
T1053

Defense Evasion

Credential Access

Discovery

Query Registry

1
T1012

Lateral Movement

Collection

Exfiltration

Command and Control

Impact

Resource Development

Reconnaissance

Tasks