Overview

overview

10

Static

static

10

Client-built.exe

windows10-2004-x64

10

Client-built.exe

windows10-ltsc 2021-x64

10

Sharing

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General

  • Target

    Client-built.exe

  • Size

    3.1MB

  • Sample

    241025-jfzlsswhmb

  • MD5

    e66da355fd3824d7cb83a1460ccdf7ff

  • SHA1

    e5c00c3fcb2703b7e71e6a39bb6b3fff0d60c938

  • SHA256

    b99db344c7736d6670081a4aa48a62b2ea3566b2e665413c5c0fbbcf43f8c9ca

  • SHA512

    411a983f86bd1eb28326bbe03fdf76146c7acf813051876f00474bc96725d5fae4bc59b527c3ce80a39f9146ad6c4dfee18adc5056ab8ac80e57e4e27fbae856

  • SSDEEP

    49152:KvTI22SsaNYfdPBldt698dBcjH5i5PkoGd9THHB72eh2NT:Kvs22SsaNYfdPBldt6+dBcjH5i5c

Score
10/10
quasaroffice04spywaretrojan

Malware Config

Extracted

Family

quasar

Version

1.4.1

Botnet

Office04

C2

192.168.1.103:4782

Mutex

f71d790f-faf7-4074-a415-aa94634f9a9b

Attributes
  • encryption_key

    9D377AC0024B5DFCC6111678695ABD8EBAF41CD8

  • 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

      e66da355fd3824d7cb83a1460ccdf7ff

    • SHA1

      e5c00c3fcb2703b7e71e6a39bb6b3fff0d60c938

    • SHA256

      b99db344c7736d6670081a4aa48a62b2ea3566b2e665413c5c0fbbcf43f8c9ca

    • SHA512

      411a983f86bd1eb28326bbe03fdf76146c7acf813051876f00474bc96725d5fae4bc59b527c3ce80a39f9146ad6c4dfee18adc5056ab8ac80e57e4e27fbae856

    • SSDEEP

      49152:KvTI22SsaNYfdPBldt698dBcjH5i5PkoGd9THHB72eh2NT:Kvs22SsaNYfdPBldt6+dBcjH5i5c

    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

Tasks