File name:

npcap-1.79 (1).exe

Full analysis: https://app.any.run/tasks/5bd5d095-0304-4528-aae6-3a9d8b74d0b4
Verdict: Malicious activity
Analysis date: April 07, 2024, 16:47:47
OS: Windows 7 Professional Service Pack 1 (build: 7601, 32 bit)
Indicators:
MIME: application/x-dosexec
File info: PE32 executable (GUI) Intel 80386, for MS Windows, Nullsoft Installer self-extracting archive
MD5:

A4D7E47DF742F62080BF845D606045B4

SHA1:

723743DC9FA4A190452A7FFC971ADFAAC91606FA

SHA256:

A95577EBBC67FC45B319E2EF3A55F4E9B211FE82ED4CB9D8BE6B1A9E2425CE53

SSDEEP:

49152:D6RKhVd9S1OsrcrMPSqfAQ4HgmY8mMiXZDeEN7sWv3Xu9uJRdSKpt6qUI2fqEFNI:D6YhsoIPSNvY8mMicEN7sGO9cRb6qxGu

ANY.RUN is an interactive service which provides full access to the guest system. Information in this report could be distorted by user actions and is provided for user acknowledgement as it is. ANY.RUN does not guarantee maliciousness or safety of the content.

  • MALICIOUS

    • Drops the executable file immediately after the start

      • npcap-1.79 (1).exe (PID: 2672)
      • drvinst.exe (PID: 3596)
      • NPFInstall.exe (PID: 2032)

    • Creates a writable file in the system directory

      • npcap-1.79 (1).exe (PID: 2672)
      • drvinst.exe (PID: 3596)
      • NPFInstall.exe (PID: 2032)

    • Run PowerShell with an invisible window

      • powershell.exe (PID: 2780)
      • powershell.exe (PID: 3088)
      • powershell.exe (PID: 2584)
      • powershell.exe (PID: 3292)
      • powershell.exe (PID: 116)

  • SUSPICIOUS

    • Malware-specific behavior (creating "System.dll" in Temp)

      • npcap-1.79 (1).exe (PID: 2672)

    • The process creates files with name similar to system file names

      • npcap-1.79 (1).exe (PID: 2672)

    • Starts CMD.EXE for commands execution

      • ns2326.tmp (PID: 1348)

    • Uses WMIC.EXE to obtain quick Fix Engineering (patches) data

      • cmd.exe (PID: 696)

    • Starts application with an unusual extension

      • npcap-1.79 (1).exe (PID: 2672)

    • Using 'findstr.exe' to search for text patterns in files and output

      • cmd.exe (PID: 696)

    • Reads the Internet Settings

      • WMIC.exe (PID: 3164)

    • Creates a software uninstall entry

      • npcap-1.79 (1).exe (PID: 2672)

    • Starts POWERSHELL.EXE for commands execution

      • ns58BF.tmp (PID: 2788)
      • ns5E5D.tmp (PID: 2384)
      • ns63EE.tmp (PID: 2376)
      • ns68B2.tmp (PID: 2616)
      • nsE914.tmp (PID: 1836)

    • The process bypasses the loading of PowerShell profile settings

      • ns58BF.tmp (PID: 2788)
      • ns5E5D.tmp (PID: 2384)
      • ns63EE.tmp (PID: 2376)
      • ns68B2.tmp (PID: 2616)
      • nsE914.tmp (PID: 1836)

    • The process hide an interactive prompt from the user

      • ns5E5D.tmp (PID: 2384)
      • ns63EE.tmp (PID: 2376)
      • ns58BF.tmp (PID: 2788)
      • ns68B2.tmp (PID: 2616)
      • nsE914.tmp (PID: 1836)

    • Adds/modifies Windows certificates

      • certutil.exe (PID: 1028)

    • Creates files in the driver directory

      • drvinst.exe (PID: 3596)
      • NPFInstall.exe (PID: 2032)

    • Checks Windows Trust Settings

      • drvinst.exe (PID: 3596)
      • NPFInstall.exe (PID: 2032)

    • Reads settings of System Certificates

      • rundll32.exe (PID: 3644)
      • NPFInstall.exe (PID: 2032)

    • Executes as Windows Service

      • VSSVC.exe (PID: 2980)

    • Reads security settings of Internet Explorer

      • NPFInstall.exe (PID: 2032)

    • Creates or modifies Windows services

      • npcap-1.79 (1).exe (PID: 2672)

  • INFO

    • Checks supported languages

      • npcap-1.79 (1).exe (PID: 2672)
      • ns2326.tmp (PID: 1348)
      • ns566C.tmp (PID: 1340)
      • NPFInstall.exe (PID: 2388)
      • ns58BF.tmp (PID: 2788)
      • ns5E5D.tmp (PID: 2384)
      • ns6311.tmp (PID: 1404)
      • ns6380.tmp (PID: 1840)
      • ns63EE.tmp (PID: 2376)
      • ns68B2.tmp (PID: 2616)
      • ns6D77.tmp (PID: 3988)
      • ns6CF9.tmp (PID: 572)
      • ns6DF5.tmp (PID: 2740)
      • ns6E73.tmp (PID: 1732)
      • NPFInstall.exe (PID: 3084)
      • ns6F4E.tmp (PID: 3012)
      • NPFInstall.exe (PID: 2768)
      • ns6FBD.tmp (PID: 2764)
      • NPFInstall.exe (PID: 2032)
      • drvinst.exe (PID: 3596)
      • nsE914.tmp (PID: 1836)
      • nsEE55.tmp (PID: 2148)

    • Reads the computer name

      • npcap-1.79 (1).exe (PID: 2672)
      • NPFInstall.exe (PID: 2388)
      • NPFInstall.exe (PID: 2768)
      • NPFInstall.exe (PID: 2032)
      • drvinst.exe (PID: 3596)

    • Create files in a temporary directory

      • npcap-1.79 (1).exe (PID: 2672)
      • NPFInstall.exe (PID: 2032)

    • Creates files in the program directory

      • npcap-1.79 (1).exe (PID: 2672)
      • NPFInstall.exe (PID: 2388)

    • Reads Environment values

      • npcap-1.79 (1).exe (PID: 2672)

    • Reads the machine GUID from the registry

      • drvinst.exe (PID: 3596)
      • NPFInstall.exe (PID: 2032)

    • Reads the software policy settings

      • drvinst.exe (PID: 3596)
      • rundll32.exe (PID: 3644)
      • NPFInstall.exe (PID: 2032)

    • Reads security settings of Internet Explorer

      • rundll32.exe (PID: 3644)

    • Adds/modifies Windows certificates

      • drvinst.exe (PID: 3596)
Find more information about signature artifacts and mapping to MITRE ATT&CK™ MATRIX at the full report
No Malware configuration.

TRiD

.exe | Win32 Executable MS Visual C++ (generic) (42.2)
.exe | Win64 Executable (generic) (37.3)
.dll | Win32 Dynamic Link Library (generic) (8.8)
.exe | Win32 Executable (generic) (6)
.exe | Generic Win/DOS Executable (2.7)

EXIF

EXE

MachineType: Intel 386 or later, and compatibles
TimeStamp: 2021:07:24 22:40:31+00:00
ImageFileCharacteristics: No relocs, Executable, No line numbers, No symbols, 32-bit
PEType: PE32
LinkerVersion: 6
CodeSize: 28160
InitializedDataSize: 152576
UninitializedDataSize: 2048
EntryPoint: 0x3a59
OSVersion: 4
ImageVersion: 6
SubsystemVersion: 4
Subsystem: Windows GUI
FileVersionNumber: 5.1.79.117
ProductVersionNumber: 5.1.79.117
FileFlagsMask: 0x0000
FileFlags: (none)
FileOS: Win32
ObjectFileType: Executable application
FileSubtype: -
LanguageCode: English (U.S.)
CharacterSet: Unicode
FileDescription: Npcap 1.79 installer
FileVersion: 1.79
LegalCopyright: Copyright (c) 2023, Insecure.Com LLC. All rights reserved.
ProductName: Npcap
ProductVersion: 1.79
No data.
screenshotscreenshotscreenshotscreenshotscreenshotscreenshotscreenshotscreenshot
All screenshots are available in the full report
All screenshots are available in the full report
Total processes
102
Monitored processes
42
Malicious processes
5
Suspicious processes
0

Behavior graph

Click at the process to see the details
start npcap-1.79 (1).exe ns2326.tmp no specs cmd.exe no specs wmic.exe no specs findstr.exe no specs ns566c.tmp no specs npfinstall.exe no specs ns58bf.tmp no specs powershell.exe no specs ns5e5d.tmp no specs powershell.exe no specs certutil.exe no specs ns6311.tmp no specs certutil.exe no specs ns6380.tmp no specs certutil.exe no specs ns63ee.tmp no specs powershell.exe no specs ns68b2.tmp no specs powershell.exe no specs certutil.exe no specs ns6cf9.tmp no specs certutil.exe no specs ns6d77.tmp no specs certutil.exe no specs ns6df5.tmp no specs certutil.exe no specs ns6e73.tmp no specs npfinstall.exe no specs pnputil.exe no specs ns6f4e.tmp no specs npfinstall.exe no specs ns6fbd.tmp no specs npfinstall.exe no specs drvinst.exe no specs rundll32.exe no specs vssvc.exe no specs nse914.tmp no specs powershell.exe no specs nsee55.tmp no specs schtasks.exe no specs npcap-1.79 (1).exe no specs

Process information

PID
CMD
Path
Indicators
Parent process
116powershell.exe -NoProfile -WindowStyle Hidden -NonInteractive -Command "Microsoft.PowerShell.Management\Start-Service -Name npcap -PassThru | Microsoft.PowerShell.Management\Stop-Service -PassThru | Microsoft.PowerShell.Management\Start-Service"C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe—nsE914.tmp
User:
admin
Company:
Microsoft Corporation
Integrity Level:
HIGH
Description:
Windows PowerShell
Exit code:
0
Version:
10.0.14409.1005 (rs1_srvoob.161208-1155)
Modules
Images
c:\windows\system32\windowspowershell\v1.0\powershell.exe
c:\windows\system32\ntdll.dll
c:\windows\system32\kernel32.dll
c:\windows\system32\kernelbase.dll
c:\windows\system32\advapi32.dll
c:\windows\system32\msvcrt.dll
c:\windows\system32\sechost.dll
c:\windows\system32\rpcrt4.dll
c:\windows\system32\atl.dll
c:\windows\system32\user32.dll
572"C:\Users\admin\AppData\Local\Temp\nso2306.tmp\ns6CF9.tmp" certutil.exe -verifystore "Root" "5fb7ee0633e259dbad0c4c9ae6d38f1a61c7dc25"C:\Users\admin\AppData\Local\Temp\nso2306.tmp\ns6CF9.tmp—npcap-1.79 (1).exe
User:
admin
Integrity Level:
HIGH
Exit code:
2148073489
Modules
Images
c:\users\admin\appdata\local\temp\nso2306.tmp\ns6cf9.tmp
c:\windows\system32\ntdll.dll
c:\windows\system32\kernel32.dll
c:\windows\system32\kernelbase.dll
c:\windows\system32\advapi32.dll
c:\windows\system32\msvcrt.dll
c:\windows\system32\sechost.dll
c:\windows\system32\rpcrt4.dll
c:\windows\system32\user32.dll
c:\windows\system32\gdi32.dll
584certutil.exe -verifystore "Root" "5fb7ee0633e259dbad0c4c9ae6d38f1a61c7dc25"C:\Windows\System32\certutil.exe—ns6CF9.tmp
User:
admin
Company:
Microsoft Corporation
Integrity Level:
HIGH
Description:
CertUtil.exe
Exit code:
2148073489
Version:
6.1.7601.18151 (win7sp1_gdr.130512-1533)
Modules
Images
c:\windows\system32\certutil.exe
c:\windows\system32\ntdll.dll
c:\windows\system32\kernel32.dll
c:\windows\system32\kernelbase.dll
c:\windows\system32\advapi32.dll
c:\windows\system32\msvcrt.dll
c:\windows\system32\sechost.dll
c:\windows\system32\rpcrt4.dll
c:\windows\system32\certcli.dll
c:\windows\system32\atl.dll
696cmd /Q /C "%SYSTEMROOT%\System32\wbem\wmic.exe qfe get hotfixid | %SYSTEMROOT%\System32\findstr.exe "^KB4474419""C:\Windows\System32\cmd.exe—ns2326.tmp
User:
admin
Company:
Microsoft Corporation
Integrity Level:
HIGH
Description:
Windows Command Processor
Exit code:
0
Version:
6.1.7601.17514 (win7sp1_rtm.101119-1850)
Modules
Images
c:\windows\system32\cmd.exe
c:\windows\system32\ntdll.dll
c:\windows\system32\kernel32.dll
c:\windows\system32\kernelbase.dll
c:\windows\system32\msvcrt.dll
c:\windows\system32\winbrand.dll
c:\windows\system32\user32.dll
c:\windows\system32\gdi32.dll
c:\windows\system32\lpk.dll
c:\windows\system32\usp10.dll
1028certutil.exe -addstore -f "TrustedPublisher" "C:\Users\admin\AppData\Local\Temp\nso2306.tmp\signing.p7b"C:\Windows\System32\certutil.exe—ns6DF5.tmp
User:
admin
Company:
Microsoft Corporation
Integrity Level:
HIGH
Description:
CertUtil.exe
Exit code:
0
Version:
6.1.7601.18151 (win7sp1_gdr.130512-1533)
Modules
Images
c:\windows\system32\certutil.exe
c:\windows\system32\ntdll.dll
c:\windows\system32\kernel32.dll
c:\windows\system32\kernelbase.dll
c:\windows\system32\advapi32.dll
c:\windows\system32\msvcrt.dll
c:\windows\system32\sechost.dll
c:\windows\system32\rpcrt4.dll
c:\windows\system32\certcli.dll
c:\windows\system32\atl.dll
1232"C:\Windows\system32\certutil.exe" -verifystore Root 0563b8630d62d75abbc8ab1e4bdfb5a899b24d43C:\Windows\System32\certutil.exe—powershell.exe
User:
admin
Company:
Microsoft Corporation
Integrity Level:
HIGH
Description:
CertUtil.exe
Exit code:
2148073489
Version:
6.1.7601.18151 (win7sp1_gdr.130512-1533)
Modules
Images
c:\windows\system32\certutil.exe
c:\windows\system32\ntdll.dll
c:\windows\system32\kernel32.dll
c:\windows\system32\kernelbase.dll
c:\windows\system32\advapi32.dll
c:\windows\system32\msvcrt.dll
c:\windows\system32\sechost.dll
c:\windows\system32\rpcrt4.dll
c:\windows\system32\certcli.dll
c:\windows\system32\atl.dll
1340"C:\Users\admin\AppData\Local\Temp\nso2306.tmp\ns566C.tmp" "C:\Users\admin\AppData\Local\Temp\nso2306.tmp\NPFInstall.exe" -n -check_dllC:\Users\admin\AppData\Local\Temp\nso2306.tmp\ns566C.tmp—npcap-1.79 (1).exe
User:
admin
Integrity Level:
HIGH
Exit code:
0
Modules
Images
c:\users\admin\appdata\local\temp\nso2306.tmp\ns566c.tmp
c:\windows\system32\ntdll.dll
c:\windows\system32\kernel32.dll
c:\windows\system32\kernelbase.dll
c:\windows\system32\advapi32.dll
c:\windows\system32\msvcrt.dll
c:\windows\system32\sechost.dll
c:\windows\system32\rpcrt4.dll
c:\windows\system32\user32.dll
c:\windows\system32\gdi32.dll
1348"C:\Users\admin\AppData\Local\Temp\nso2306.tmp\ns2326.tmp" cmd /Q /C "%SYSTEMROOT%\System32\wbem\wmic.exe qfe get hotfixid | %SYSTEMROOT%\System32\findstr.exe "^KB4474419""C:\Users\admin\AppData\Local\Temp\nso2306.tmp\ns2326.tmp—npcap-1.79 (1).exe
User:
admin
Integrity Level:
HIGH
Exit code:
0
Modules
Images
c:\users\admin\appdata\local\temp\nso2306.tmp\ns2326.tmp
c:\windows\system32\ntdll.dll
c:\windows\system32\kernel32.dll
c:\windows\system32\kernelbase.dll
c:\windows\system32\advapi32.dll
c:\windows\system32\msvcrt.dll
c:\windows\system32\sechost.dll
c:\windows\system32\rpcrt4.dll
c:\windows\system32\user32.dll
c:\windows\system32\gdi32.dll
1404"C:\Users\admin\AppData\Local\Temp\nso2306.tmp\ns6311.tmp" certutil.exe -verifystore "Root" "0563b8630d62d75abbc8ab1e4bdfb5a899b24d43"C:\Users\admin\AppData\Local\Temp\nso2306.tmp\ns6311.tmp—npcap-1.79 (1).exe
User:
admin
Integrity Level:
HIGH
Exit code:
2148073489
Modules
Images
c:\users\admin\appdata\local\temp\nso2306.tmp\ns6311.tmp
c:\windows\system32\ntdll.dll
c:\windows\system32\kernel32.dll
c:\windows\system32\kernelbase.dll
c:\windows\system32\advapi32.dll
c:\windows\system32\msvcrt.dll
c:\windows\system32\sechost.dll
c:\windows\system32\rpcrt4.dll
c:\windows\system32\user32.dll
c:\windows\system32\gdi32.dll
1696"C:\Users\admin\Desktop\npcap-1.79 (1).exe" C:\Users\admin\Desktop\npcap-1.79 (1).exe—explorer.exe
User:
admin
Integrity Level:
MEDIUM
Description:
Npcap 1.79 installer
Exit code:
3221226540
Version:
1.79
Modules
Images
c:\users\admin\desktop\npcap-1.79 (1).exe
c:\windows\system32\ntdll.dll
Total events
40 360
Read events
39 924
Write events
417
Delete events
19

Modification events

(PID) Process:(2672) npcap-1.79 (1).exeKey:HKEY_LOCAL_MACHINE\SOFTWARE\Npcap
Operation:writeName:AdminOnly
Value:
0
(PID) Process:(2672) npcap-1.79 (1).exeKey:HKEY_LOCAL_MACHINE\SOFTWARE\Npcap
Operation:writeName:WinPcapCompatible
Value:
1
(PID) Process:(2672) npcap-1.79 (1).exeKey:HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Uninstall\NpcapInst
Operation:writeName:UninstallString
Value:
"C:\Program Files\Npcap\uninstall.exe"
(PID) Process:(2672) npcap-1.79 (1).exeKey:HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Uninstall\NpcapInst
Operation:writeName:QuietUninstallString
Value:
"C:\Program Files\Npcap\uninstall.exe" /S
(PID) Process:(2672) npcap-1.79 (1).exeKey:HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Uninstall\NpcapInst
Operation:writeName:DisplayIcon
Value:
C:\Program Files\Npcap\uninstall.exe
(PID) Process:(2672) npcap-1.79 (1).exeKey:HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Uninstall\NpcapInst
Operation:writeName:UninstallPath
Value:
C:\Program Files\Npcap
(PID) Process:(2780) powershell.exeKey:HKEY_CLASSES_ROOT\Local Settings\MuiCache\182\52C64B7E
Operation:writeName:LanguageList
Value:
en-US
(PID) Process:(1232) certutil.exeKey:HKEY_CLASSES_ROOT\Local Settings\MuiCache\182\52C64B7E
Operation:writeName:LanguageList
Value:
en-US
(PID) Process:(3088) powershell.exeKey:HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\SystemCertificates\AuthRoot\Certificates\0563B8630D62D75ABBC8AB1E4BDFB5A899B24D43
Operation:delete valueName:File
Value:
(PID) Process:(3088) powershell.exeKey:HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\SystemCertificates\AuthRoot\Certificates\0563B8630D62D75ABBC8AB1E4BDFB5A899B24D43
Operation:delete keyName:(default)
Value:
Executable files
39
Suspicious files
11
Text files
10
Unknown types
27

Dropped files

PID
Process
Filename
Type
2672npcap-1.79 (1).exeC:\Users\admin\AppData\Local\Temp\nso2306.tmp\System.dllexecutable
MD5:—
SHA256:—
2672npcap-1.79 (1).exeC:\Users\admin\AppData\Local\Temp\nso2306.tmp\options.initext
MD5:—
SHA256:—
2672npcap-1.79 (1).exeC:\Users\admin\AppData\Local\Temp\nso2306.tmp\InstallOptions.dllexecutable
MD5:—
SHA256:—
2672npcap-1.79 (1).exeC:\Users\admin\AppData\Local\Temp\nso2306.tmp\final.initext
MD5:—
SHA256:—
2672npcap-1.79 (1).exeC:\Users\admin\AppData\Local\Temp\nso2306.tmp\nsExec.dllexecutable
MD5:—
SHA256:—
2672npcap-1.79 (1).exeC:\Users\admin\AppData\Local\Temp\nso2306.tmp\ns2326.tmpexecutable
MD5:—
SHA256:—
2672npcap-1.79 (1).exeC:\Users\admin\AppData\Local\Temp\nso2306.tmp\modern-header.bmpimage
MD5:—
SHA256:—
2672npcap-1.79 (1).exeC:\Users\admin\AppData\Local\Temp\nso2306.tmp\NPFInstall.exeexecutable
MD5:—
SHA256:—
2672npcap-1.79 (1).exeC:\Users\admin\AppData\Local\Temp\nso2306.tmp\ns566C.tmpexecutable
MD5:—
SHA256:—
2388NPFInstall.exeC:\Program Files\Npcap\NPFInstall.logtext
MD5:—
SHA256:—
Download PCAP, analyze network streams, HTTP content and a lot more at the full report
HTTP(S) requests
0
TCP/UDP connections
6
DNS requests
0
Threats
0

HTTP requests

No HTTP requests
Download PCAP, analyze network streams, HTTP content and a lot more at the full report

Connections

PID
Process
IP
Domain
ASN
CN
Reputation
4
System
192.168.100.255:138
—
—
—
whitelisted
4
System
192.168.100.255:137
—
—
—
whitelisted
—
—
224.0.0.252:5355
—
—
—
unknown
1080
svchost.exe
224.0.0.252:5355
—
—
—
unknown

DNS requests

No data

Threats

No threats detected
No debug info
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Reports
npcap-1.79 (1).exe