Overview

overview

10

Static

static

10

Nexar.exe

windows7-x64

7

Nexar.exe

windows10-2004-x64

9

Sharing

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General

  • Target

    Nexar.exe

  • Size

    76.0MB

  • Sample

    241113-cwrskavdmh

  • MD5

    00699fc912d0f2d4d3a397ffaf2911dd

  • SHA1

    3bb6090301df35e7271fdf950bc7446032fb18ac

  • SHA256

    c96afebeb6384f5a8df6ea00238d12d724611fdf4f3b7f93fb651784a86346f1

  • SHA512

    ff155952a8048a0b4afe972c695f97db3830a24913f41381ef16c2d094dabf629a5b6aec19a4f9569183f563e040845780239f27b51468bed1d3660f38177326

  • SSDEEP

    1572864:t8VlCWo03Sk8IpG7V+VPhqIUE7WCylKtFiY4MHHLeqPNLtDan2WVZLw4PV:tKE2SkB05awIACyMoMHVLten/Vi4N

Score
10/10
pysilonevasionexecutionpersistencepyinstallerupx

Malware Config

Targets

    • Target

      Nexar.exe

    • Size

      76.0MB

    • MD5

      00699fc912d0f2d4d3a397ffaf2911dd

    • SHA1

      3bb6090301df35e7271fdf950bc7446032fb18ac

    • SHA256

      c96afebeb6384f5a8df6ea00238d12d724611fdf4f3b7f93fb651784a86346f1

    • SHA512

      ff155952a8048a0b4afe972c695f97db3830a24913f41381ef16c2d094dabf629a5b6aec19a4f9569183f563e040845780239f27b51468bed1d3660f38177326

    • SSDEEP

      1572864:t8VlCWo03Sk8IpG7V+VPhqIUE7WCylKtFiY4MHHLeqPNLtDan2WVZLw4PV:tKE2SkB05awIACyMoMHVLten/Vi4N

    Score
    9/10
    upxevasionexecutionpersistence

    • Enumerates VirtualBox DLL files

    • Command and Scripting Interpreter: PowerShell

      Run Powershell to modify Windows Defender settings to add exclusions for file extensions, paths, and processes.

      execution

    • Sets file to hidden

      Modifies file attributes to stop it showing in Explorer etc.

      evasion

    • Executes dropped EXE

    • Loads dropped DLL

    • Adds Run key to start application

      persistence

    • Legitimate hosting services abused for malware hosting/C2

    • UPX packed file

      Detects executables packed with UPX/modified UPX open source packer.

      upx
    behavioral1behavioral2

MITRE ATT&CK Enterprise v15

Tasks