File name:

RTK_NIC_DRIVER_INSTALLER.sfx.exe

Full analysis: https://app.any.run/tasks/e85ddce7-da81-42ae-ba2e-ca4f816cd29b
Verdict: Malicious activity
Analysis date: January 22, 2024, 17:00:18
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
MD5:

3139A6B7AC5C7DF144B28DCD489EB6D7

SHA1:

873851F0E8D641EAC7FDF807919E1F984964DFB2

SHA256:

28E465120BD979055D5CD0E4A1A4690DA55C4A3E21565B7616E3438B46F4D5A7

SSDEEP:

49152:BfJgDmsa43h4/MYTBRCzuDkrRXIYY1LP5H163r1ZywUpEgSCi53TLDp1IRBY6af0:BfJgDmsa43cvNDkhIrJ16b1ZyV/itVCr

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

      • RTK_NIC_DRIVER_INSTALLER.sfx.exe (PID: 2208)
      • Setup.exe (PID: 492)
      • drvinst.exe (PID: 316)

    • Creates a writable file in the system directory

      • drvinst.exe (PID: 316)

  • SUSPICIOUS

    • Reads the Internet Settings

      • RTK_NIC_DRIVER_INSTALLER.sfx.exe (PID: 2208)

    • Drops a system driver (possible attempt to evade defenses)

      • RTK_NIC_DRIVER_INSTALLER.sfx.exe (PID: 2208)
      • Setup.exe (PID: 492)
      • drvinst.exe (PID: 316)

    • Executable content was dropped or overwritten

      • RTK_NIC_DRIVER_INSTALLER.sfx.exe (PID: 2208)
      • Setup.exe (PID: 492)
      • drvinst.exe (PID: 316)

    • Creates files in the driver directory

      • drvinst.exe (PID: 316)

    • Checks Windows Trust Settings

      • drvinst.exe (PID: 316)

  • INFO

    • Checks supported languages

      • RTK_NIC_DRIVER_INSTALLER.sfx.exe (PID: 2208)
      • Setup.exe (PID: 492)
      • drvinst.exe (PID: 316)

    • Reads the computer name

      • RTK_NIC_DRIVER_INSTALLER.sfx.exe (PID: 2208)
      • Setup.exe (PID: 492)
      • drvinst.exe (PID: 316)

    • Create files in a temporary directory

      • RTK_NIC_DRIVER_INSTALLER.sfx.exe (PID: 2208)
      • Setup.exe (PID: 492)

    • Reads the machine GUID from the registry

      • Setup.exe (PID: 492)
      • drvinst.exe (PID: 316)
Find more information about signature artifacts and mapping to MITRE ATT&CK™ MATRIX at the full report
No Malware configuration.

TRiD

.exe | Generic Win/DOS Executable (50)
.exe | DOS Executable Generic (49.9)

EXIF

EXE

MachineType: Intel 386 or later, and compatibles
TimeStamp: 2010:06:27 09:06:38+02:00
ImageFileCharacteristics: No relocs, Executable, 32-bit
PEType: PE32
LinkerVersion: 8
CodeSize: 70656
InitializedDataSize: 115712
UninitializedDataSize: -
EntryPoint: 0x11def
OSVersion: 4
ImageVersion: -
SubsystemVersion: 4
Subsystem: Windows GUI
No data.
screenshot
All screenshots are available in the full report
All screenshots are available in the full report
Total processes
39
Monitored processes
4
Malicious processes
3
Suspicious processes
0

Behavior graph

Click at the process to see the details
start rtk_nic_driver_installer.sfx.exe setup.exe drvinst.exe rtk_nic_driver_installer.sfx.exe no specs

Process information

PID
CMD
Path
Indicators
Parent process
316DrvInst.exe "4" "0" "C:\Users\admin\AppData\Local\Temp\{30ba8587-ca1e-76d8-a69e-6e4f1a009b4b}\rtux86w7.inf" "0" "69369bd0f" "000003DC" "WinSta0\Default" "000005C0" "208" "C:\Users\admin\AppData\Local\Temp\RTK_NIC_DRIVER_INSTALLER\WIN7\32"C:\Windows\System32\drvinst.exe
svchost.exe
User:
SYSTEM
Company:
Microsoft Corporation
Integrity Level:
SYSTEM
Description:
Driver Installation Module
Exit code:
0
Version:
6.1.7600.16385 (win7_rtm.090713-1255)
Modules
Images
c:\windows\system32\drvinst.exe
c:\windows\system32\ntdll.dll
c:\windows\system32\kernel32.dll
c:\windows\system32\kernelbase.dll
c:\windows\system32\msvcrt.dll
c:\windows\system32\setupapi.dll
c:\windows\system32\cfgmgr32.dll
c:\windows\system32\rpcrt4.dll
c:\windows\system32\advapi32.dll
c:\windows\system32\sechost.dll
492"C:\Users\admin\AppData\Local\Temp\RTK_NIC_DRIVER_INSTALLER\Setup.exe" -sC:\Users\admin\AppData\Local\Temp\RTK_NIC_DRIVER_INSTALLER\Setup.exe
RTK_NIC_DRIVER_INSTALLER.sfx.exe
User:
admin
Company:
Realtek Semiconductor Corp.
Integrity Level:
HIGH
Description:
USB NIC Driver Auto Installer
Exit code:
0
Version:
1.0.0.10
Modules
Images
c:\users\admin\appdata\local\temp\rtk_nic_driver_installer\setup.exe
c:\windows\system32\ntdll.dll
c:\windows\system32\kernel32.dll
c:\windows\system32\kernelbase.dll
c:\windows\system32\setupapi.dll
c:\windows\system32\cfgmgr32.dll
c:\windows\system32\msvcrt.dll
c:\windows\system32\rpcrt4.dll
c:\windows\system32\advapi32.dll
c:\windows\system32\sechost.dll
2184"C:\Users\admin\AppData\Local\Temp\RTK_NIC_DRIVER_INSTALLER.sfx.exe" C:\Users\admin\AppData\Local\Temp\RTK_NIC_DRIVER_INSTALLER.sfx.exe—explorer.exe
User:
admin
Integrity Level:
MEDIUM
Exit code:
3221226540
Modules
Images
c:\users\admin\appdata\local\temp\rtk_nic_driver_installer.sfx.exe
c:\windows\system32\ntdll.dll
2208"C:\Users\admin\AppData\Local\Temp\RTK_NIC_DRIVER_INSTALLER.sfx.exe" C:\Users\admin\AppData\Local\Temp\RTK_NIC_DRIVER_INSTALLER.sfx.exe
explorer.exe
User:
admin
Integrity Level:
HIGH
Exit code:
0
Modules
Images
c:\users\admin\appdata\local\temp\rtk_nic_driver_installer.sfx.exe
c:\windows\system32\ntdll.dll
c:\windows\system32\kernel32.dll
c:\windows\system32\kernelbase.dll
c:\windows\winsxs\x86_microsoft.windows.common-controls_6595b64144ccf1df_6.0.7601.24483_none_2b200f664577e14b\comctl32.dll
c:\windows\system32\msvcrt.dll
c:\windows\system32\gdi32.dll
c:\windows\system32\user32.dll
c:\windows\system32\lpk.dll
c:\windows\system32\usp10.dll
Total events
3 771
Read events
3 735
Write events
36
Delete events
0

Modification events

(PID) Process:(2208) RTK_NIC_DRIVER_INSTALLER.sfx.exeKey:HKEY_CURRENT_USER\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap
Operation:writeName:ProxyBypass
Value:
1
(PID) Process:(2208) RTK_NIC_DRIVER_INSTALLER.sfx.exeKey:HKEY_CURRENT_USER\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap
Operation:writeName:IntranetName
Value:
1
(PID) Process:(2208) RTK_NIC_DRIVER_INSTALLER.sfx.exeKey:HKEY_CURRENT_USER\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap
Operation:writeName:UNCAsIntranet
Value:
1
(PID) Process:(2208) RTK_NIC_DRIVER_INSTALLER.sfx.exeKey:HKEY_CURRENT_USER\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap
Operation:writeName:AutoDetect
Value:
0
(PID) Process:(492) Setup.exeKey:HKEY_CLASSES_ROOT\Local Settings\MuiCache\182\52C64B7E
Operation:writeName:LanguageList
Value:
en-US
(PID) Process:(316) drvinst.exeKey:HKEY_USERS\.DEFAULT\Software\Classes\Local Settings\MuiCache\182\52C64B7E
Operation:writeName:LanguageList
Value:
en-US
Executable files
28
Suspicious files
39
Text files
1
Unknown types
0

Dropped files

PID
Process
Filename
Type
2208RTK_NIC_DRIVER_INSTALLER.sfx.exeC:\Users\admin\AppData\Local\Temp\RTK_NIC_DRIVER_INSTALLER\WIN10\64\rtux64w10.INFbinary
MD5:F023CDCC0B170E70A8686F9030406B14
SHA256:5508DA72D5EFB45A2EB96894D86024645ACD2BA88E2ADA6320CF7911BFFCAEF9
2208RTK_NIC_DRIVER_INSTALLER.sfx.exeC:\Users\admin\AppData\Local\Temp\RTK_NIC_DRIVER_INSTALLER\WIN7\64\rtux64w7.catbinary
MD5:0D660C36087540F1965C84B3339EB212
SHA256:3534196D98A0539CF81DA163508A446D8940CA80568F56F76A2B5694DC696C9E
2208RTK_NIC_DRIVER_INSTALLER.sfx.exeC:\Users\admin\AppData\Local\Temp\RTK_NIC_DRIVER_INSTALLER\WIN8\32\rtux86w8.INFbinary
MD5:A1963BB98E1740489B10EE8B9615ADA9
SHA256:FDB96FB8DA22F36DC084D123CEEF5E01746E30607CC02BE20336A0B09F609D60
2208RTK_NIC_DRIVER_INSTALLER.sfx.exeC:\Users\admin\AppData\Local\Temp\RTK_NIC_DRIVER_INSTALLER\WIN7\64\rtux64w7.INFbinary
MD5:B2E25C6ADC493A18B81A09455D020B7A
SHA256:D6EE23E484C010F0B14E26E3DE36D271D25694A9AC8CFFE0B7E45F155492EAC0
2208RTK_NIC_DRIVER_INSTALLER.sfx.exeC:\Users\admin\AppData\Local\Temp\RTK_NIC_DRIVER_INSTALLER\WIN8\32\rtux86w8.catbinary
MD5:3420485CE3DB44253D4038F74226B2A2
SHA256:8E88B6A995E0C4D36414E1F495C650FABC27E70D178CA390D64EC7BC120C2ACE
2208RTK_NIC_DRIVER_INSTALLER.sfx.exeC:\Users\admin\AppData\Local\Temp\RTK_NIC_DRIVER_INSTALLER\WIN8\64\rtux64w8.INFbinary
MD5:28ACA719C6FAD417AF7FDB7A8E7C34FB
SHA256:178986E1979BA5D596A06110599B7333081B332AB00407332B5CE9184ACF845F
2208RTK_NIC_DRIVER_INSTALLER.sfx.exeC:\Users\admin\AppData\Local\Temp\RTK_NIC_DRIVER_INSTALLER\WIN10\64\rtux64w10.catbinary
MD5:02221650B872819E1AD2B9D7277563A0
SHA256:7A7C14946D4F406D3FEBD7F05DEB393B05F9F7E1C0ABDE0DA00E4BE880D3E2FB
2208RTK_NIC_DRIVER_INSTALLER.sfx.exeC:\Users\admin\AppData\Local\Temp\RTK_NIC_DRIVER_INSTALLER\WIN8\64\rtux64w8.catbinary
MD5:9D4CC364EA49A08675ADD04E67847CE5
SHA256:EC037157B401E39316F7C65BD3D1602550D5F14B52E8DD1FAD2E05DF7321251C
2208RTK_NIC_DRIVER_INSTALLER.sfx.exeC:\Users\admin\AppData\Local\Temp\RTK_NIC_DRIVER_INSTALLER\WIN7\32\rtux86w7.catbinary
MD5:15091E2FAC93675589FF326EDE17E9EA
SHA256:08E9BE151FA446C1965CC8627F672021E7B4D186E7B9867AA6C7EAF8DC838016
2208RTK_NIC_DRIVER_INSTALLER.sfx.exeC:\Users\admin\AppData\Local\Temp\RTK_NIC_DRIVER_INSTALLER\WINVISTA\64\rtux64lh.catbinary
MD5:35AF19AF287109968457BF623AE25159
SHA256:6FA76F0D0D7788A4C5D8AE92FBCA280589021B824821CADC3B0C77D87F05B327
Download PCAP, analyze network streams, HTTP content and a lot more at the full report
HTTP(S) requests
0
TCP/UDP connections
4
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
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
RTK_NIC_DRIVER_INSTALLER.sfx.exe