Overview

overview

10

Static

static

10

03765899.exe

windows7-x64

10

03765899.exe

windows10-2004-x64

10

Sharing

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General

  • Target

    03765899.exe

  • Size

    3.1MB

  • Sample

    230606-s2mc2aeh81

  • MD5

    3b09070c9e87a592744c37b11da765ec

  • SHA1

    7cc3c47a526bdff236c386d7104e6a6421105c68

  • SHA256

    d465ae9ae6e31167882d3b174e65fb3147ead1574d6cade606a3aa4ae0c5545c

  • SHA512

    cb74601a94f6756af762b13955f60b52f508dac2d5b80b7394377b9113c908dee1f578cc1bdf7e18a9cbb742c9fb69565506cf59ec273af4913b77adc9242365

  • SSDEEP

    98304:vI/4IIbtPUwyah7/l9jr18zR7CP+FxSh:Qybta7CPyk

Score
10/10
quasaroffice04spywaretrojan

Malware Config

Extracted

Family

quasar

Version

1.4.1

Botnet

Office04

C2

146.56.36.222:4782

Mutex

bab74252-734a-4e03-933a-2f4f1e18953d

Attributes
  • encryption_key

    F48794CF898BB4C5B6223D4F472D7C5E4AD2EF9D

  • install_name

    yu.exe

  • log_directory

    Logs

  • reconnect_delay

    3000

  • startup_key

    zhudongfangyu

  • subdirectory

    SubDir

Targets

    • Target

      03765899.exe

    • Size

      3.1MB

    • MD5

      3b09070c9e87a592744c37b11da765ec

    • SHA1

      7cc3c47a526bdff236c386d7104e6a6421105c68

    • SHA256

      d465ae9ae6e31167882d3b174e65fb3147ead1574d6cade606a3aa4ae0c5545c

    • SHA512

      cb74601a94f6756af762b13955f60b52f508dac2d5b80b7394377b9113c908dee1f578cc1bdf7e18a9cbb742c9fb69565506cf59ec273af4913b77adc9242365

    • SSDEEP

      98304:vI/4IIbtPUwyah7/l9jr18zR7CP+FxSh:Qybta7CPyk

    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 v6

Initial Access

Execution

Scheduled Task

1
T1053

Persistence

Scheduled Task

1
T1053

Privilege Escalation

Scheduled Task

1
T1053

Defense Evasion

Credential Access

Discovery

Query Registry

1
T1012

Lateral Movement

Collection

Exfiltration

Command and Control

Impact

Tasks