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Analysis
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max time kernel
147s -
max time network
152s -
platform
windows10-2004_x64 -
resource
win10v2004-20240802-en -
resource tags
arch:x64arch:x86image:win10v2004-20240802-enlocale:en-usos:windows10-2004-x64system -
submitted
22/08/2024, 02:47
Static task
static1
Behavioral task
behavioral1
Sample
uninstall.exe
Resource
win7-20240705-en
Behavioral task
behavioral2
Sample
uninstall.exe
Resource
win10v2004-20240802-en
Behavioral task
behavioral3
Sample
winpnp.dll
Resource
win7-20240708-en
Behavioral task
behavioral4
Sample
winpnp.dll
Resource
win10v2004-20240802-en
Behavioral task
behavioral5
Sample
winpnps.exe
Resource
win7-20240708-en
Behavioral task
behavioral6
Sample
winpnps.exe
Resource
win10v2004-20240802-en
General
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Target
winpnps.exe
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Size
1.3MB
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MD5
8c99d9e3eb8e1510d45fdf2b3614938d
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SHA1
bb251b639e30e030365a76037b6b078498d3e8f8
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SHA256
5319983d18df4e4d4d619e277833fb53f8581beb5bff0c7345c87390a3a96cbd
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SHA512
e80ecfb48eb6a2ec50419e6a404ebd856b593b09fd5dac7098ca218dc7fdc85fae040ca76a4f8dd9911a525e58e03edf62267d41ddf9a82d4a30c549d2125afd
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SSDEEP
24576:MfhUapfoyj35K+r6MmgJcgoCS1CmmwFniM9:MfCK3grMJHoC49
Malware Config
Signatures
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Checks computer location settings 2 TTPs 1 IoCs
Looks up country code configured in the registry, likely geofence.
description ioc Process Key value queried \REGISTRY\USER\S-1-5-21-2170637797-568393320-3232933035-1000\Control Panel\International\Geo\Nation winpnps.exe -
Adds Run key to start application 2 TTPs 1 IoCs
description ioc Process Set value (str) \REGISTRY\USER\S-1-5-21-2170637797-568393320-3232933035-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\winpnpv3 = "C:\\Users\\Admin\\AppData\\Local\\Temp\\winpnps.exe" winpnps.exe -
Installs/modifies Browser Helper Object 2 TTPs 2 IoCs
BHOs are DLL modules which act as plugins for Internet Explorer.
description ioc Process Key created \REGISTRY\MACHINE\Software\WOW6432Node\Microsoft\Windows\CurrentVersion\explorer\Browser Helper Objects\{6F2BD1DC-B030-4656-8847-E75037CA9C13} regsvr32.exe Set value (int) \REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Windows\CurrentVersion\Explorer\Browser Helper Objects\{6F2BD1DC-B030-4656-8847-E75037CA9C13}\NoExplorer = "1" regsvr32.exe -
Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).
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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.
description ioc Process Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language winpnps.exe Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language regsvr32.exe -
Modifies registry class 11 IoCs
description ioc Process Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{6F2BD1DC-B030-4656-8847-E75037CA9C13}\ = "O" regsvr32.exe Key created \REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{6F2BD1DC-B030-4656-8847-E75037CA9C13}\InprocServer32 regsvr32.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{6F2BD1DC-B030-4656-8847-E75037CA9C13}\InprocServer32\ = "C:\\Users\\Admin\\AppData\\Local\\Temp\\winpnp.dll" regsvr32.exe Key created \REGISTRY\MACHINE\SOFTWARE\Classes\winpnp.P regsvr32.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\winpnp.P\ = "O" regsvr32.exe Key created \REGISTRY\MACHINE\SOFTWARE\Classes\winpnp.P\Clsid regsvr32.exe Key created \REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{6F2BD1DC-B030-4656-8847-E75037CA9C13} regsvr32.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\winpnp.P\Clsid\ = "{6F2BD1DC-B030-4656-8847-E75037CA9C13}" regsvr32.exe Key created \REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{6F2BD1DC-B030-4656-8847-E75037CA9C13}\ProgID regsvr32.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{6F2BD1DC-B030-4656-8847-E75037CA9C13}\ProgID\ = "winpnp.P" regsvr32.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{6F2BD1DC-B030-4656-8847-E75037CA9C13}\InprocServer32\ThreadingModel = "Apartment" regsvr32.exe -
Suspicious use of WriteProcessMemory 3 IoCs
description pid Process procid_target PID 972 wrote to memory of 632 972 winpnps.exe 91 PID 972 wrote to memory of 632 972 winpnps.exe 91 PID 972 wrote to memory of 632 972 winpnps.exe 91
Processes
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C:\Users\Admin\AppData\Local\Temp\winpnps.exe"C:\Users\Admin\AppData\Local\Temp\winpnps.exe"1⤵
- Checks computer location settings
- Adds Run key to start application
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:972 -
C:\Windows\SysWOW64\regsvr32.exe"C:\Windows\System32\regsvr32.exe" /s "C:\Users\Admin\AppData\Local\Temp\winpnp.dll"2⤵
- Installs/modifies Browser Helper Object
- System Location Discovery: System Language Discovery
- Modifies registry class
PID:632
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C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe"C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe" --type=utility --utility-sub-type=asset_store.mojom.AssetStoreService --lang=en-US --service-sandbox-type=asset_store_service --field-trial-handle=4336,i,16316361669272684588,6171287487746154806,262144 --variations-seed-version --mojo-platform-channel-handle=1040 /prefetch:81⤵PID:3616
Network
MITRE ATT&CK Enterprise v15
Persistence
Boot or Logon Autostart Execution
1Registry Run Keys / Startup Folder
1Browser Extensions
1Privilege Escalation
Boot or Logon Autostart Execution
1Registry Run Keys / Startup Folder
1