Overview

overview

10

Static

static

10

qqsarbuilder.exe

windows7-x64

10

qqsarbuilder.exe

windows10-2004-x64

10

Sharing

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General

  • Target
    qqsar.zip
  • Size 1.2MB
  • Sample240803-see1fa1fqd
  • SHA256 8b33b55bfc95d42f71f7a4556bf4ab365cc8a9657a9a48c4184cf8f4fd1cfdf8
  • MD5 SHA1 SHA512 SSDEEP
Score
10/10
office04quasar

Malware Config

Extracted

Family

  • quasar

Version

  • 1.4.1

Botnet

  • Office04

C2

  • 192.168.174.129:4782

Mutex

  • 4642d254-5910-430f-8e8f-b944ab72b6fd

Attributes
  • encryption_key

    F0F78B2B4A3D25098C1C1557DC99FDA4D204F27D

  • install_name

    windwsupdater.exe

  • log_directory

    Logs

  • reconnect_delay

    3000

  • startup_key

    windwsupdater

  • subdirectory

    SubDir

Signatures

  • Quasar family
    quasar
  • Quasar payload 1 IoCs
  • Unsigned PE 1 IoCs

    Checks for missing Authenticode signature.

File Explorer

  • qqsar.zip
    .zip 1.2MB
  • qqsarbuilder.exe
    .exe 3.1MB

qqsar.zip

  • SHA256 8b33b55bfc95d42f71f7a4556bf4ab365cc8a9657a9a48c4184cf8f4fd1cfdf8
  • MD5 SHA1 SHA512 SSDEEP
Password
123