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

    240425-svygqaca79

  • MD5

    6706a6e4a95f5637609c6b2caf787c4d

  • SHA1

    fa341df8b489ebd921cb18333c07aef7da0f2bc0

  • SHA256

    f8242a7acd92d0e086f25d91e9f14a0c7ad4ef941552e832c864d9474b115365

  • SHA512

    710bbb34714dba6b268f23537c0a1b85544f7fdc39b051c13df5a3dfb0465edbcf5ae64fb885fbd66fef64ae5e085784c09ebafba93ebb6d0bcf1315bddd001c

  • SSDEEP

    49152:CvuI22SsaNYfdPBldt698dBcjHOjkaC4OcoGdLNuqTHHB72eh2NT:CvD22SsaNYfdPBldt6+dBcjHOjkQ

Score
10/10
quasaroffice04spywaretrojan

Malware Config

Extracted

Family

quasar

Version

1.4.1

Botnet

Office04

C2

192.168.213.165:4782

Mutex

d402a788-8e2a-4a4a-aeb4-513d9ccafb05

Attributes
  • encryption_key

    F32126D84D72B52DFD050B3033DA28DFA736DED8

  • 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

      6706a6e4a95f5637609c6b2caf787c4d

    • SHA1

      fa341df8b489ebd921cb18333c07aef7da0f2bc0

    • SHA256

      f8242a7acd92d0e086f25d91e9f14a0c7ad4ef941552e832c864d9474b115365

    • SHA512

      710bbb34714dba6b268f23537c0a1b85544f7fdc39b051c13df5a3dfb0465edbcf5ae64fb885fbd66fef64ae5e085784c09ebafba93ebb6d0bcf1315bddd001c

    • SSDEEP

      49152:CvuI22SsaNYfdPBldt698dBcjHOjkaC4OcoGdLNuqTHHB72eh2NT:CvD22SsaNYfdPBldt6+dBcjHOjkQ

    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