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-ddqcfs1ckn

  • MD5

    0a9c32e636ea546c60b8af765bce1f80

  • SHA1

    8597de6e52628bb8817c25214c5a025e8d35d43e

  • SHA256

    27a22a9fb85f83dbb20e7092149972adbc51a4dd15e044d6e020fe8da782fca6

  • SHA512

    74b624d1bd21b4d8df5295eec7b8f9b0b535362ceb28f91c557c4fc218de904ed6541a17ff990e36cc28d7283fce525bccb49ecbc26f932bd53ebe3e767a5a7c

  • SSDEEP

    49152:rvbI22SsaNYfdPBldt698dBcjH8Pe2EGaBk/uhNoGdIgTHHB72eh2NT:rvk22SsaNYfdPBldt6+dBcjH8PePL

Score
10/10
quasaroffice04spywaretrojan

Malware Config

Extracted

Family

quasar

Version

1.4.1

Botnet

Office04

C2

192.168.0.1:8096

Mutex

a63960a8-6945-4928-849a-0eae3d19431a

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

      0a9c32e636ea546c60b8af765bce1f80

    • SHA1

      8597de6e52628bb8817c25214c5a025e8d35d43e

    • SHA256

      27a22a9fb85f83dbb20e7092149972adbc51a4dd15e044d6e020fe8da782fca6

    • SHA512

      74b624d1bd21b4d8df5295eec7b8f9b0b535362ceb28f91c557c4fc218de904ed6541a17ff990e36cc28d7283fce525bccb49ecbc26f932bd53ebe3e767a5a7c

    • SSDEEP

      49152:rvbI22SsaNYfdPBldt698dBcjH8Pe2EGaBk/uhNoGdIgTHHB72eh2NT:rvk22SsaNYfdPBldt6+dBcjH8PePL

    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

1
T1082

Query Registry

1
T1012

Lateral Movement

Collection

Exfiltration

Command and Control

Impact

Resource Development

Reconnaissance

Tasks