Overview

overview

10

Static

static

10

a6c317dcb5...db.exe

windows7-x64

10

a6c317dcb5...db.exe

windows10-2004-x64

10

Sharing

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General

  • Target

    a6c317dcb5b9f43c26d53121a696eadb.exe

  • Size

    3.1MB

  • Sample

    230527-qex5xacc8y

  • MD5

    a6c317dcb5b9f43c26d53121a696eadb

  • SHA1

    10516eb3ed753b9f224f2170da50cde5f0e32d2c

  • SHA256

    a7e7d00dbcfded8345042410b362d04338fa33dea700a9cdf18679578f6d51af

  • SHA512

    5cf4f966dc5b94d35804448dde4600049407884330971e34e9462f044f8bb966035759f3a1d1ddb2796565cfed215b544c5adcdb60a75b4cbd15f9b1b1a4583d

  • SSDEEP

    49152:bvyI22SsaNYfdPBldt698dBcjHsRu6nBxHOoGdG5MbOTHHB72eh2NT:bvf22SsaNYfdPBldt6+dBcjHf6q

Score
10/10
quasaroffice04spywaretrojan

Malware Config

Extracted

Family

quasar

Version

1.4.1

Botnet

Office04

C2

147.135.165.27:4782

Mutex

f500aa4e-d127-4766-9ef9-64174e95f29c

Attributes
  • encryption_key

    491408BD5297689B51A8088AE3C37B6548A71F50

  • install_name

    Client.exe

  • log_directory

    Logs

  • reconnect_delay

    3000

  • startup_key

    Quasar Client Startup

  • subdirectory

    SubDir

Targets

    • Target

      a6c317dcb5b9f43c26d53121a696eadb.exe

    • Size

      3.1MB

    • MD5

      a6c317dcb5b9f43c26d53121a696eadb

    • SHA1

      10516eb3ed753b9f224f2170da50cde5f0e32d2c

    • SHA256

      a7e7d00dbcfded8345042410b362d04338fa33dea700a9cdf18679578f6d51af

    • SHA512

      5cf4f966dc5b94d35804448dde4600049407884330971e34e9462f044f8bb966035759f3a1d1ddb2796565cfed215b544c5adcdb60a75b4cbd15f9b1b1a4583d

    • SSDEEP

      49152:bvyI22SsaNYfdPBldt698dBcjHsRu6nBxHOoGdG5MbOTHHB72eh2NT:bvf22SsaNYfdPBldt6+dBcjHf6q

    Score
    10/10
    quasaroffice04spywaretrojan

    • Quasar RAT

      Quasar is an open source Remote Access Tool.

      trojanspywarequasar

    • Quasar payload

    • Executes dropped EXE

    • Drops file in System32 directory

    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