Overview

overview

10

Static

static

10

Client-built.exe

windows10-2004-x64

10

Sharing

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General

  • Target

    Client-built.exe

  • Size

    3.1MB

  • Sample

    240530-yy7sfshb5z

  • MD5

    853efe8c5829952a49ee7a1d1d1a31f0

  • SHA1

    461629b70ffcd441e07457e916a2f2a2dc95971a

  • SHA256

    ee504c45708c9b736c625c19b8322381eb172eb55604196fda42f6e6f380aaf9

  • SHA512

    05fd7ef451e315532f263b54b51e48c643b7eff7d5f405df84e9881beac7eff2d21b34f187599b8e042dd3e2f59947863cc16ec47ffc6cce2ecb25a408f1a63e

  • SSDEEP

    49152:PvyI22SsaNYfdPBldt698dBcjHxd7UoGdGTHHB72eh2NT:Pvf22SsaNYfdPBldt6+dBcjHxdw

Score
10/10
quasaroffice04spywaretrojan

Malware Config

Extracted

Family

quasar

Version

1.4.1

Botnet

Office04

C2

192.168.0.111:4782

Mutex

18305b7b-a551-46f5-a5d8-64c569cc9b4f

Attributes
  • encryption_key

    68D694BB4C15238633D5D8ADB3EF746A2F0D60E6

  • 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

      853efe8c5829952a49ee7a1d1d1a31f0

    • SHA1

      461629b70ffcd441e07457e916a2f2a2dc95971a

    • SHA256

      ee504c45708c9b736c625c19b8322381eb172eb55604196fda42f6e6f380aaf9

    • SHA512

      05fd7ef451e315532f263b54b51e48c643b7eff7d5f405df84e9881beac7eff2d21b34f187599b8e042dd3e2f59947863cc16ec47ffc6cce2ecb25a408f1a63e

    • SSDEEP

      49152:PvyI22SsaNYfdPBldt698dBcjHxd7UoGdGTHHB72eh2NT:Pvf22SsaNYfdPBldt6+dBcjHxdw

    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

2
T1012

System Information Discovery

1
T1082

Lateral Movement

Collection

Exfiltration

Command and Control

Impact

Resource Development

Reconnaissance

Tasks