Overview

overview

10

Static

static

10

BoostrapperNew.exe

windows10-ltsc 2021-x64

10

BoostrapperNew.exe

windows11-21h2-x64

10

Sharing

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General

  • Target

    BoostrapperNew.exe

  • Size

    3.1MB

  • Sample

    250209-zqnv2ssmgt

  • MD5

    fffa78b634ec5a634b38919d6b73ab12

  • SHA1

    83317baa30567aee782eb64e9629009f8c7a0674

  • SHA256

    575c397127cbff22ea9374a6c4a8303a52307129ef8356e1177296b1718fdf7e

  • SHA512

    9f082ca3bd9d5b61bf8240301def6ef3f119d7ec3b2387c86d4d580d87daccfaa1d964a577f31c8faf1004afd34a31291ae057167086568804cf361f38e9df1f

  • SSDEEP

    49152:CvylL26AaNeWgPhlmVqvMQ7XSKYtm3mz3joGdaATHHB72eh2NT:CvqL26AaNeWgPhlmVqkQ7XSKYtmYK

Score
10/10
quasaroffice04discoveryspywaretrojan

Malware Config

Extracted

Family

quasar

Version

1.4.1

Botnet

Office04

C2

192.168.1.236:4782

Mutex

b796139d-9ac7-4dd6-b216-9d23cb27a8cf

Attributes
  • encryption_key

    A32C977AF70FAC39329AA4FE677FAA9E5BEB3D7E

  • install_name

    BoostrapperNew.exe

  • log_directory

    Logs

  • reconnect_delay

    3000

  • startup_key

    Quasar Client Startup

  • subdirectory

    SubDir

Targets

    • Target

      BoostrapperNew.exe

    • Size

      3.1MB

    • MD5

      fffa78b634ec5a634b38919d6b73ab12

    • SHA1

      83317baa30567aee782eb64e9629009f8c7a0674

    • SHA256

      575c397127cbff22ea9374a6c4a8303a52307129ef8356e1177296b1718fdf7e

    • SHA512

      9f082ca3bd9d5b61bf8240301def6ef3f119d7ec3b2387c86d4d580d87daccfaa1d964a577f31c8faf1004afd34a31291ae057167086568804cf361f38e9df1f

    • SSDEEP

      49152:CvylL26AaNeWgPhlmVqvMQ7XSKYtm3mz3joGdaATHHB72eh2NT:CvqL26AaNeWgPhlmVqkQ7XSKYtmYK

    Score
    10/10
    quasaroffice04discoveryspywaretrojan

    • Quasar RAT

      Quasar is an open source Remote Access Tool.

      trojanspywarequasar

    • Quasar family

      quasar

    • Quasar payload

    • Downloads MZ/PE file

    • Executes dropped EXE

    behavioral1behavioral2

MITRE ATT&CK Enterprise v15

Tasks