Overview

overview

10

Static

static

10

Client-built.exe

windows11-21h2-x64

10

Sharing

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General

  • Target

    Client-built.exe

  • Size

    3.1MB

  • Sample

    240701-rd2blswakb

  • MD5

    9be969c60df3c2cf819d86fe21c22403

  • SHA1

    2a7412bd9979b49ee875592527e5703027ada8b7

  • SHA256

    fd9c9c52f6a1f42dbc9bae5cb41f29ab2d13d38a265998669dca294c19502295

  • SHA512

    f500a03062360d8b161706a1fec23d1f145152a7214b4f794c1be6202e670ddd747177aada93867b6b2546177d50d00f55f167cf7a806f3e543696c8dcee2b87

  • SSDEEP

    49152:CvRt62XlaSFNWPjljiFa2RoUYIE444poGdtTHHB72eh2NT:Cvb62XlaSFNWPjljiFXRoUYI34E

Score
10/10
quasaroffice04spywaretrojan

Malware Config

Extracted

Family

quasar

Version

1.4.1

Botnet

Office04

C2

10.0.2.15:4782

Mutex

34b824a5-92b1-4778-827a-9a291a182de7

Attributes
  • encryption_key

    9D7A82CA2BF1EE1C2F54E2F44FB5DD27535C300F

  • install_name

    Teams.exe

  • log_directory

    Logs

  • reconnect_delay

    3000

  • startup_key

    Quasar Client Startup

  • subdirectory

    SubDir

Targets

    • Target

      Client-built.exe

    • Size

      3.1MB

    • MD5

      9be969c60df3c2cf819d86fe21c22403

    • SHA1

      2a7412bd9979b49ee875592527e5703027ada8b7

    • SHA256

      fd9c9c52f6a1f42dbc9bae5cb41f29ab2d13d38a265998669dca294c19502295

    • SHA512

      f500a03062360d8b161706a1fec23d1f145152a7214b4f794c1be6202e670ddd747177aada93867b6b2546177d50d00f55f167cf7a806f3e543696c8dcee2b87

    • SSDEEP

      49152:CvRt62XlaSFNWPjljiFa2RoUYIE444poGdtTHHB72eh2NT:Cvb62XlaSFNWPjljiFXRoUYI34E

    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

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