Overview

overview

10

Static

static

10

AA5DA5D211...1F.exe

windows7-x64

10

AA5DA5D211...1F.exe

windows10-2004-x64

10

Sharing

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General

  • Target

    AA5DA5D211DD6B3C5E9404520EBEEC1F.exe

  • Size

    3.1MB

  • Sample

    240625-kpavgasfqm

  • MD5

    aa5da5d211dd6b3c5e9404520ebeec1f

  • SHA1

    037e6d5fa8398a3f95df469d60debe6fc8c93f89

  • SHA256

    1b586bfe3423ef03ecba497e90fd31b42022dd8e1f325e212c1e23cc58ba7be7

  • SHA512

    9a02a50c2534ece296d183bd712f8be240f4e5d989842656e28392af41036d29dc30cf205fe3526b980a480c54c3d9a4de7f5ef35103dec2d29fb513d2e83b72

  • SSDEEP

    49152:PvSI22SsaNYfdPBldt698dBcjHod/oKT2fOTmZPKoGANtTHHB72eh2NT:Pv/22SsaNYfdPBldt6+dBcjHE/oKDg

Score
10/10
quasaroffice04spywaretrojan

Malware Config

Extracted

Family

quasar

Version

1.4.1

Botnet

Office04

C2

91.92.242.80:4782

Mutex

e88cd5c3-d3f7-4cbb-94a7-7136e3bc6ab9

Attributes
  • encryption_key

    B1F363CB165B4ADD4702FD386A0A1054BFED678C

  • install_name

    WindowsUpdate.exe

  • log_directory

    Logs

  • reconnect_delay

    3000

  • startup_key

    Windows.Update

  • subdirectory

    Update

Targets

    • Target

      AA5DA5D211DD6B3C5E9404520EBEEC1F.exe

    • Size

      3.1MB

    • MD5

      aa5da5d211dd6b3c5e9404520ebeec1f

    • SHA1

      037e6d5fa8398a3f95df469d60debe6fc8c93f89

    • SHA256

      1b586bfe3423ef03ecba497e90fd31b42022dd8e1f325e212c1e23cc58ba7be7

    • SHA512

      9a02a50c2534ece296d183bd712f8be240f4e5d989842656e28392af41036d29dc30cf205fe3526b980a480c54c3d9a4de7f5ef35103dec2d29fb513d2e83b72

    • SSDEEP

      49152:PvSI22SsaNYfdPBldt698dBcjHod/oKT2fOTmZPKoGANtTHHB72eh2NT:Pv/22SsaNYfdPBldt6+dBcjHE/oKDg

    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

Query Registry

1
T1012

Lateral Movement

Collection

Exfiltration

Command and Control

Impact

Resource Development

Reconnaissance

Tasks