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

    240623-dcrtwsxbqe

  • MD5

    d15aaa22eb03b31937925310c3d36411

  • SHA1

    45898e18f05d508753c7f051f671c21f4f3324e8

  • SHA256

    7c45872682181142c0baf0c738d36ffe0a466c39ea4be1a673b7304426a5606e

  • SHA512

    6127d1216c41ade025c98727a770d45e852978affa441eb45da108334b28c542e144157b070ec931440109d0890c843af305a29dc829bbc27a9d936df6ff982d

  • SSDEEP

    49152:uvbI22SsaNYfdPBldt698dBcjHlXsAdpiLoGdi5zTHHB72eh2NT:uvk22SsaNYfdPBldt6+dBcjHhsH

Score
10/10
quasaroffice04spywaretrojan

Malware Config

Extracted

Family

quasar

Version

1.4.1

Botnet

Office04

C2

192.168.0.1:8096

Mutex

f897331a-e70c-4b37-9939-0865729f7475

Attributes
  • encryption_key

    1E5FEC53491F397A647C164995877CF2E1897DD5

  • 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

      d15aaa22eb03b31937925310c3d36411

    • SHA1

      45898e18f05d508753c7f051f671c21f4f3324e8

    • SHA256

      7c45872682181142c0baf0c738d36ffe0a466c39ea4be1a673b7304426a5606e

    • SHA512

      6127d1216c41ade025c98727a770d45e852978affa441eb45da108334b28c542e144157b070ec931440109d0890c843af305a29dc829bbc27a9d936df6ff982d

    • SSDEEP

      49152:uvbI22SsaNYfdPBldt698dBcjHlXsAdpiLoGdi5zTHHB72eh2NT:uvk22SsaNYfdPBldt6+dBcjHhsH

    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

System Information Discovery

2
T1082

Query Registry

2
T1012

Lateral Movement

Collection

Exfiltration

Command and Control

Impact

Resource Development

Reconnaissance

Tasks