| File name: | RTK_NIC_DRIVER_INSTALLER.sfx.exe |
| Full analysis: | https://app.any.run/tasks/765946dc-07b4-454a-9226-18cf23a8ce6d |
| Verdict: | Malicious activity |
| Analysis date: | March 14, 2025, 00:55:43 |
| OS: | Windows 10 Professional (build: 19045, 64 bit) |
| Indicators: | |
| MIME: | application/vnd.microsoft.portable-executable |
| File info: | PE32 executable (GUI) Intel 80386, for MS Windows, 4 sections |
| MD5: | 3E50F76F18D1A7B77D4B4CEEC0C555F4 |
| SHA1: | 23E5B4DEFD101C16214A7FC8FF11D2BCFE363985 |
| SHA256: | D4484FC908DC07DF99B2737D8638AAB628A58D6172C52F76E1C8499F67E89155 |
| SSDEEP: | 49152:lfnWkiYnsmdhHVrlFCT8zl4AgEumPkVWoj4axLE4QdNl4VQzeR/T+BtcYvzghnvP:lf5PdzrlOAgtmF7ALEhl4VQqRiX7+n+Q |
MALICIOUS
No malicious indicators.SUSPICIOUS
The executable file from the user directory is run by the CMD process
- RTK_NIC_DRIVER_INSTALLER.sfx.exe (PID: 3156)
- RTK_NIC_DRIVER_INSTALLER.sfx.exe (PID: 6640)
- RTK_NIC_DRIVER_INSTALLER.sfx.exe (PID: 7188)
Drops a system driver (possible attempt to evade defenses)
- RTK_NIC_DRIVER_INSTALLER.sfx.exe (PID: 7188)
- Setup.exe (PID: 7256)
- drvinst.exe (PID: 7324)
Reads security settings of Internet Explorer
- RTK_NIC_DRIVER_INSTALLER.sfx.exe (PID: 7188)
Executable content was dropped or overwritten
- RTK_NIC_DRIVER_INSTALLER.sfx.exe (PID: 7188)
- Setup.exe (PID: 7256)
- drvinst.exe (PID: 7324)
Creates files in the driver directory
- drvinst.exe (PID: 7324)
INFO
The sample compiled with english language support
- RTK_NIC_DRIVER_INSTALLER.sfx.exe (PID: 7188)
- Setup.exe (PID: 7256)
- drvinst.exe (PID: 7324)
Reads the computer name
- RTK_NIC_DRIVER_INSTALLER.sfx.exe (PID: 7188)
- Setup.exe (PID: 7256)
- drvinst.exe (PID: 7324)
Create files in a temporary directory
- RTK_NIC_DRIVER_INSTALLER.sfx.exe (PID: 7188)
- Setup.exe (PID: 7256)
Process checks computer location settings
- RTK_NIC_DRIVER_INSTALLER.sfx.exe (PID: 7188)
Checks supported languages
- RTK_NIC_DRIVER_INSTALLER.sfx.exe (PID: 7188)
- Setup.exe (PID: 7256)
- drvinst.exe (PID: 7324)
Reads the software policy settings
- drvinst.exe (PID: 7324)
Reads the machine GUID from the registry
- drvinst.exe (PID: 7324)
Find more information about signature artifacts and mapping to MITRE ATT&CK™ MATRIX at the full report
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 07:06:38+00:00 |
| ImageFileCharacteristics: | No relocs, Executable, 32-bit |
| PEType: | PE32 |
| LinkerVersion: | 8 |
| CodeSize: | 70656 |
| InitializedDataSize: | 77312 |
| UninitializedDataSize: | - |
| EntryPoint: | 0x11def |
| OSVersion: | 4 |
| ImageVersion: | - |
| SubsystemVersion: | 4 |
| Subsystem: | Windows GUI |
| FileVersionNumber: | 1.2.0.715 |
| ProductVersionNumber: | 1.2.0.715 |
| FileFlagsMask: | 0x0000 |
| FileFlags: | (none) |
| FileOS: | Windows NT 32-bit |
| ObjectFileType: | Executable application |
| FileSubtype: | - |
| LanguageCode: | Neutral |
| CharacterSet: | Unicode |
| CompanyName: | Realtek |
| FileDescription: | RtuInstall |
| FileVersion: | 1.0.0.7 |
| LegalCopyright: | COPYRIGHT (C) 2007-2020 Realtek CORPORATION |
| OriginalFileName: | RtuInstall.exe |
| ProductName: | RtuInstall |
| ProductVersion: | 1.0.0.7 |
Total processes
134
Monitored processes
9
Malicious processes
3
Suspicious processes
0
Behavior graph
Click at the process to see the details
Process information
PID | CMD | Path | Indicators | Parent process | |||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 3156 | "C:\Users\admin\AppData\Local\Temp\RTK_NIC_DRIVER_INSTALLER.sfx.exe" | C:\Users\admin\AppData\Local\Temp\RTK_NIC_DRIVER_INSTALLER.sfx.exe | — | cmd.exe | |||||||||||
User: admin Company: Realtek Integrity Level: MEDIUM Description: RtuInstall Exit code: 3221226540 Version: 1.0.0.7 Modules
| |||||||||||||||
| 5380 | \??\C:\WINDOWS\system32\conhost.exe 0xffffffff -ForceV1 | C:\Windows\System32\conhost.exe | — | cmd.exe | |||||||||||
User: admin Company: Microsoft Corporation Integrity Level: MEDIUM Description: Console Window Host Version: 10.0.19041.1 (WinBuild.160101.0800) Modules
| |||||||||||||||
| 5972 | "C:\Windows\System32\cmd.exe" /k C:\Users\admin\AppData\Local\Temp\RTK_NIC_DRIVER_INSTALLER.sfx.exe | C:\Windows\System32\cmd.exe | — | explorer.exe | |||||||||||
User: admin Company: Microsoft Corporation Integrity Level: MEDIUM Description: Windows Command Processor Version: 10.0.19041.1 (WinBuild.160101.0800) Modules
| |||||||||||||||
| 6640 | C:\Users\admin\AppData\Local\Temp\RTK_NIC_DRIVER_INSTALLER.sfx.exe | C:\Users\admin\AppData\Local\Temp\RTK_NIC_DRIVER_INSTALLER.sfx.exe | — | cmd.exe | |||||||||||
User: admin Company: Realtek Integrity Level: MEDIUM Description: RtuInstall Exit code: 3221226540 Version: 1.0.0.7 Modules
| |||||||||||||||
| 7188 | "C:\Users\admin\AppData\Local\Temp\RTK_NIC_DRIVER_INSTALLER.sfx.exe" | C:\Users\admin\AppData\Local\Temp\RTK_NIC_DRIVER_INSTALLER.sfx.exe | cmd.exe | ||||||||||||
User: admin Company: Realtek Integrity Level: HIGH Description: RtuInstall Exit code: 0 Version: 1.0.0.7 Modules
| |||||||||||||||
| 7256 | "C:\Users\admin\AppData\Local\Temp\RTK_NIC_DRIVER_INSTALLER\setup.exe" -s | C:\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: 1.0.0.15 Modules
| |||||||||||||||
| 7324 | DrvInst.exe "4" "0" "C:\Users\admin\AppData\Local\Temp\{7ff2a6a3-a318-f54f-b4fa-50c79674c24f}\rtux64w10sta.INF" "9" "4cf620adf" "00000000000001E0" "WinSta0\Default" "00000000000001F0" "208" "C:\Users\admin\AppData\Local\Temp\RTK_NIC_DRIVER_INSTALLER\WIN10\64" | C:\Windows\System32\drvinst.exe | svchost.exe | ||||||||||||
User: SYSTEM Company: Microsoft Corporation Integrity Level: SYSTEM Description: Driver Installation Module Exit code: 0 Version: 10.0.19041.3996 (WinBuild.160101.0800) Modules
| |||||||||||||||
| 7344 | C:\WINDOWS\system32\SppExtComObj.exe -Embedding | C:\Windows\System32\SppExtComObj.Exe | — | svchost.exe | |||||||||||
User: NETWORK SERVICE Company: Microsoft Corporation Integrity Level: SYSTEM Description: KMS Connection Broker Version: 10.0.19041.3996 (WinBuild.160101.0800) Modules
| |||||||||||||||
| 7376 | "C:\WINDOWS\System32\SLUI.exe" RuleId=3482d82e-ca2c-4e1f-8864-da0267b484b2;Action=AutoActivate;AppId=55c92734-d682-4d71-983e-d6ec3f16059f;SkuId=4de7cb65-cdf1-4de9-8ae8-e3cce27b9f2c;NotificationInterval=1440;Trigger=TimerEvent | C:\Windows\System32\slui.exe | — | SppExtComObj.Exe | |||||||||||
User: NETWORK SERVICE Company: Microsoft Corporation Integrity Level: SYSTEM Description: Windows Activation Client Version: 10.0.19041.1 (WinBuild.160101.0800) Modules
| |||||||||||||||
Total events
3 880
Read events
3 879
Write events
1
Delete events
0
Modification events
| (PID) Process: | (7256) Setup.exe | Key: | HKEY_LOCAL_MACHINE\SYSTEM\Setup\SetupapiLogStatus |
| Operation: | write | Name: | setupapi.dev.log |
Value: 4096 | |||
Executable files
16
Suspicious files
21
Text files
1
Unknown types
0
Dropped files
PID | Process | Filename | Type | |
|---|---|---|---|---|
| 7188 | RTK_NIC_DRIVER_INSTALLER.sfx.exe | C:\Users\admin\AppData\Local\Temp\RTK_NIC_DRIVER_INSTALLER\WIN7\32\rtux86w7.cat | binary | |
MD5:C139CCA969D5AB24B1B758270D190E27 | SHA256:299F21174D0E68B64AB33E0A43816A5A912F4EBD05225207C9E1DC88BD9D5152 | |||
| 7188 | RTK_NIC_DRIVER_INSTALLER.sfx.exe | C:\Users\admin\AppData\Local\Temp\RTK_NIC_DRIVER_INSTALLER\WIN10\64\rtux64w10sta.INF | binary | |
MD5:1867D00A37C2188A4AD4AB7A27F210DA | SHA256:79D4DDA749C1F8FE1CAA678D1B37D934666108DB720278DF0785B6A8DC12B5EE | |||
| 7188 | RTK_NIC_DRIVER_INSTALLER.sfx.exe | C:\Users\admin\AppData\Local\Temp\RTK_NIC_DRIVER_INSTALLER\WIN10\64\rtux64w10.cat | binary | |
MD5:963F99022AEF6F054D1E6DA421AACD08 | SHA256:BC09B317A8333A6858D12A572E186EB156C297CA2EEC7029931F1EEFD0C7B086 | |||
| 7188 | RTK_NIC_DRIVER_INSTALLER.sfx.exe | C:\Users\admin\AppData\Local\Temp\RTK_NIC_DRIVER_INSTALLER\WIN7\64\rtux64w7.cat | binary | |
MD5:C6CABE67CDBA3DD24818C256D59D6706 | SHA256:AADBE98546772D27E922699598D35F3FF5A21F4AAE5F056D0F4E57E30FC31F5E | |||
| 7188 | RTK_NIC_DRIVER_INSTALLER.sfx.exe | C:\Users\admin\AppData\Local\Temp\RTK_NIC_DRIVER_INSTALLER\WIN10\32\rtux86w10sta.INF | binary | |
MD5:F7085127F5913BDB382A307F85AEC6A1 | SHA256:8EBE0CA8CC044FE47862818062FF8181C8F5F126C90C030EE0998F07448D97D2 | |||
| 7188 | RTK_NIC_DRIVER_INSTALLER.sfx.exe | C:\Users\admin\AppData\Local\Temp\RTK_NIC_DRIVER_INSTALLER\WIN7\32\rtux86w7sta.INF | binary | |
MD5:3ACF5B37E3DD71898E74A53EAB227A31 | SHA256:727E5C12E49AFB2D98086E20011E29781F8968D8E29CE7A8A172EBA2D280B382 | |||
| 7188 | RTK_NIC_DRIVER_INSTALLER.sfx.exe | C:\Users\admin\AppData\Local\Temp\RTK_NIC_DRIVER_INSTALLER\WIN7\64\rtux64w7sta.INF | binary | |
MD5:9A11C0C8D115A5FA00728D3B03CB3870 | SHA256:9E668ABEBC069097DC5334F801DAAC822AFBD3587D5896785BA8AD87F62CBC7F | |||
| 7188 | RTK_NIC_DRIVER_INSTALLER.sfx.exe | C:\Users\admin\AppData\Local\Temp\RTK_NIC_DRIVER_INSTALLER\WIN10\32\rtux86w10.cat | binary | |
MD5:B2396083187EC556BA2A2240203F2985 | SHA256:91EE7038143DB12B178EE08DEFFCD1805676B238C96F0C4CC34AC3626819E35E | |||
| 7188 | RTK_NIC_DRIVER_INSTALLER.sfx.exe | C:\Users\admin\AppData\Local\Temp\RTK_NIC_DRIVER_INSTALLER\WIN10\64\rtux64w10.sys | executable | |
MD5:F1FD80B91AD551E014A9B34EC37089C0 | SHA256:D49CD2A1316824E027AEF4378B28586BD5F7457DD5E9530E989901FE8508F692 | |||
| 7188 | RTK_NIC_DRIVER_INSTALLER.sfx.exe | C:\Users\admin\AppData\Local\Temp\RTK_NIC_DRIVER_INSTALLER\WIN10\32\rtux86w10.sys | executable | |
MD5:5C5E25AC792FA7EA5F93426F21FB60DE | SHA256:3F06A31A01A1098ACF52DA4E51E2CF6407B0A2D7BE74C427AEA63BD2835E53F2 | |||
Download PCAP, analyze network streams, HTTP content and a lot more at the full report
HTTP(S) requests
0
TCP/UDP connections
24
DNS requests
5
Threats
0
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 |
|---|---|---|---|---|---|---|
— | — | 4.231.128.59:443 | settings-win.data.microsoft.com | MICROSOFT-CORP-MSN-AS-BLOCK | IE | whitelisted |
— | — | 192.168.100.255:137 | — | — | — | whitelisted |
4 | System | 192.168.100.255:138 | — | — | — | whitelisted |
5496 | MoUsoCoreWorker.exe | 51.104.136.2:443 | settings-win.data.microsoft.com | MICROSOFT-CORP-MSN-AS-BLOCK | IE | whitelisted |
2112 | svchost.exe | 51.104.136.2:443 | settings-win.data.microsoft.com | MICROSOFT-CORP-MSN-AS-BLOCK | IE | whitelisted |
2104 | svchost.exe | 51.104.136.2:443 | settings-win.data.microsoft.com | MICROSOFT-CORP-MSN-AS-BLOCK | IE | whitelisted |
DNS requests
Domain | IP | Reputation |
|---|---|---|
settings-win.data.microsoft.com |
| whitelisted |
google.com |
| whitelisted |