Analysis
- max time kernel
148s - max time network
152s - platform
windows10-2004_x64 - resource
win10v2004-20260130-en - resource tags
- submitted
04/05/2026, 18:29
General
- Target MpClient.dll
- Size 2.6MB
- Sample260504-w448eaav6y
- SHA256 b926d80dab87f47765f15d796a57bdbdb0e0acc9a4642b7834908e417d4ffb99
Score
10/10
Malware Config
Signatures
- Family: NetSupport
NetSupport is a remote access tool sold as a legitimate system administration software.
- Checks computer location settings 2 TTPs 1 IoCs
Looks up country code configured in the registry, likely geofence.
- Drops startup file 1 IoCs
- Executes dropped EXE 4 IoCs
- Loads dropped DLL 9 IoCs
- Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).
- System Location Discovery: System Language Discovery 1 TTPs 2 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 1 IoCs
- Suspicious use of FindShellTrayWindow 1 IoCs
- Suspicious use of WriteProcessMemory 3 IoCs
Processes
-
C:\Windows\system32\rundll32.exerundll32.exe C:\Users\Admin\AppData\Local\Temp\MpClient.dll,#11⤵
- Drops startup file
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of WriteProcessMemory
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C:\ProgramData\MicrosoftCpp\Redist\windows6.1-KB976932-X64.exe"C:\ProgramData\MicrosoftCpp\Redist\windows6.1-KB976932-X64.exe" /quiet /norestart installDir="C:\ProgramData\NetSupport"2⤵
- Checks computer location settings
- Executes dropped EXE
- Suspicious use of WriteProcessMemory
-
C:\Users\Admin\AppData\Local\Temp\RarSFX0\Files03.exe"C:\Users\Admin\AppData\Local\Temp\RarSFX0\Files03.exe" -pCoKrNvJdKd3⤵
- Executes dropped EXE
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C:\ProgramData\NetSupport\client32.exe"C:\ProgramData\NetSupport\client32.exe"2⤵
- Executes dropped EXE
- Loads dropped DLL
- System Location Discovery: System Language Discovery
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of FindShellTrayWindow
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C:\PROGRA~3\NETSUP~1\client32.exeC:\PROGRA~3\NETSUP~1\client32.exe1⤵
- Executes dropped EXE
- Loads dropped DLL
- System Location Discovery: System Language Discovery
Network
MITRE ATT&CK Enterprise v16
Replay Monitor
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Downloads
windows6.1-KB976932-X64.exe
HTCTL32.DLL
NSM.LIC
PCICL32.DLL
client32.exe
client32.ini
msvcr100.dll
pcicapi.dll
pcichek.dll
Files03.exe
memory/2908-48-0x000001A246A70000-0x000001A246B1C000-memory.dmp
memory/3708-35-0x00000224FAE30000-0x00000224FAEDC000-memory.dmp
memory/3916-36-0x0000019EB4510000-0x0000019EB45BC000-memory.dmp