Overview

overview

10

Static

static

10

WINDOWS SE...XE.exe

windows7-x64

10

WINDOWS SE...XE.exe

windows10-2004-x64

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General

  • Target
    WINDOWS SECURITY.EXE.exe
  • Size 534KB
  • Sample240613-b89cpszenc
  • SHA256 d53df5b6b080ba24773ca16c7a8b70eeb783ead278712e0c5b44abc84805e60e
  • MD5 SHA1 SHA512 SSDEEP
Score
10/10
windows securityquasar

Malware Config

Extracted

Family

  • quasar

Version

  • 2.1.0.0

Botnet

  • windows security

C2

  • quasarrat220-24487.portmap.io:24487

Mutex

  • VNM_MUTEX_mOPqShedZxvAqgLrWL

Attributes
  • encryption_key

    7mvA2TfKjvMIY0zZeMKF

  • install_name

    Client.exe

  • log_directory

    Logs

  • reconnect_delay

    3000

  • startup_key

    Venom Client Startup

  • subdirectory

    SubDir

Signatures

  • Contains code to disable Windows Defender 1 IoCs

    A .NET executable tasked with disabling Windows Defender capabilities such as realtime monitoring, blocking at first seen, etc.

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

    Checks for missing Authenticode signature.

File Explorer

  • WINDOWS SECURITY.EXE.exe
    .exe 534KB

WINDOWS SECURITY.EXE.exe

  • IMPHASH f34d5f2d4577ed6d9ceec516c1f5a744
  • SHA256 d53df5b6b080ba24773ca16c7a8b70eeb783ead278712e0c5b44abc84805e60e
  • MD5 SHA1 SHA512 SSDEEP
windows:4windowsx86arch:x86

  • Contains code to disable Windows Defender

    A .NET executable tasked with disabling Windows Defender capabilities such as realtime monitoring, blocking at first seen, etc.

  • Quasar payload

  • Unsigned PE

    Checks for missing Authenticode signature.

Minor OS version
0
Major OS version
4
Entry point
551982
Magic Number
267
Subsystem
IMAGE_SUBSYSTEM_WINDOWS_GUI
DLL Characteristics
IMAGE_DLLCHARACTERISTICS_DYNAMIC_BASE IMAGE_DLLCHARACTERISTICS_NX_COMPAT IMAGE_DLLCHARACTERISTICS_NO_SEH IMAGE_DLLCHARACTERISTICS_TERMINAL_SERVER_AWARE
File Characteristics
IMAGE_FILE_EXECUTABLE_IMAGE IMAGE_FILE_32BIT_MACHINE
PDB paths