| File name: | SteamTools.exe |
| Full analysis: | https://app.any.run/tasks/e4562f6e-d254-4c9c-9223-e82b1dd8ff4c |
| Verdict: | Malicious activity |
| Threats: | A loader is malicious software that infiltrates devices to deliver malicious payloads. This malware is capable of infecting victims’ computers, analyzing their system information, and installing other types of threats, such as trojans or stealers. Criminals usually deliver loaders through phishing emails and links by relying on social engineering to trick users into downloading and running their executables. Loaders employ advanced evasion and persistence tactics to avoid detection. |
| Analysis date: | March 17, 2026, 20:04:05 |
| OS: | Windows 10 Professional (build: 19044, 64 bit) |
| Tags: | |
| Indicators: | |
| MIME: | application/vnd.microsoft.portable-executable |
| File info: | PE32+ executable (console) x86-64, for MS Windows, 7 sections |
| MD5: | 94F35A901F17705E80B49D0A6A5DA747 |
| SHA1: | 49CBB39E3DA84BCDA4A63010FC307DBD65A27BCB |
| SHA256: | A73519D431A265A35F159A3596D1920956713011024226E4710638B5D993AB00 |
| SSDEEP: | 196608:p1nF2TaMC9gjs3jM881mwy2iRjOhKctOkkl:p1nwzs3jM6wViRjO5tORl |
MALICIOUS
Changes the autorun value in the registry
- SteamSetup.exe (PID: 8396)
SUSPICIOUS
Process drops python dynamic module
- SteamTools.exe (PID: 3976)
Executable content was dropped or overwritten
- SteamTools.exe (PID: 3976)
- SteamSetup.exe (PID: 8396)
- SteamService.exe (PID: 2992)
The process drops C-runtime libraries
- SteamTools.exe (PID: 3976)
Application launched itself
- SteamTools.exe (PID: 3976)
Starts CMD.EXE for commands execution
- cmd.exe (PID: 1868)
- cmd.exe (PID: 7460)
- cmd.exe (PID: 468)
- cmd.exe (PID: 7924)
- cmd.exe (PID: 5768)
- cmd.exe (PID: 4628)
- cmd.exe (PID: 2564)
- cmd.exe (PID: 2148)
- cmd.exe (PID: 8944)
- cmd.exe (PID: 4196)
Loads Python modules
- SteamTools.exe (PID: 6400)
Malware-specific behavior (creating "System.dll" in Temp)
- SteamSetup.exe (PID: 8396)
The process creates files with name similar to system file names
- SteamSetup.exe (PID: 8396)
Potential Corporate Privacy Violation
- firefox.exe (PID: 5716)
Uses TASKKILL.EXE to kill process
- cmd.exe (PID: 8944)
INFO
Checks supported languages
- SteamTools.exe (PID: 3976)
- SteamTools.exe (PID: 6400)
- SteamSetup.exe (PID: 8396)
- SteamService.exe (PID: 2992)
- Steam.exe (PID: 8816)
- Steam.exe (PID: 8900)
The sample compiled with english language support
- SteamTools.exe (PID: 3976)
- firefox.exe (PID: 5716)
- SteamService.exe (PID: 2992)
- SteamSetup.exe (PID: 8396)
Reads the computer name
- SteamTools.exe (PID: 3976)
- SteamTools.exe (PID: 6400)
- SteamSetup.exe (PID: 8396)
- SteamService.exe (PID: 2992)
- Steam.exe (PID: 8816)
- Steam.exe (PID: 8900)
Create files in a temporary directory
- SteamTools.exe (PID: 3976)
- SteamSetup.exe (PID: 8396)
- SteamTools.exe (PID: 6400)
PyInstaller has been detected (YARA)
- SteamTools.exe (PID: 3976)
- SteamTools.exe (PID: 6400)
Manual execution by a user
- firefox.exe (PID: 9020)
- Steam.exe (PID: 8816)
- Steam.exe (PID: 8900)
Launching a file from the Downloads directory
- firefox.exe (PID: 5716)
Application launched itself
- firefox.exe (PID: 5716)
- firefox.exe (PID: 9020)
The sample compiled with bulgarian language support
- firefox.exe (PID: 5716)
- SteamSetup.exe (PID: 8396)
Executable content was dropped or overwritten
- firefox.exe (PID: 5716)
Launching a file from a Registry key
- SteamSetup.exe (PID: 8396)
Creates files in the program directory
- SteamSetup.exe (PID: 8396)
- SteamService.exe (PID: 2992)
- Steam.exe (PID: 8816)
- SteamTools.exe (PID: 6400)
- Steam.exe (PID: 8900)
Creates a software uninstall entry
- SteamSetup.exe (PID: 8396)
Reads CPU info
- Steam.exe (PID: 8816)
- Steam.exe (PID: 8900)
Creates files or folders in the user directory
- Steam.exe (PID: 8816)
There is functionality for taking screenshot (YARA)
- Steam.exe (PID: 8816)
- Steam.exe (PID: 8900)
Reads the machine GUID from the registry
- Steam.exe (PID: 8816)
- Steam.exe (PID: 8900)
Find more information about signature artifacts and mapping to MITRE ATT&CK™ MATRIX at the full report
TRiD
| .exe | | | InstallShield setup (57.6) |
|---|---|---|
| .exe | | | Win64 Executable (generic) (36.9) |
| .exe | | | Generic Win/DOS Executable (2.6) |
| .exe | | | DOS Executable Generic (2.6) |
EXIF
EXE
| MachineType: | AMD AMD64 |
|---|---|
| TimeStamp: | 2025:12:21 11:04:06+00:00 |
| ImageFileCharacteristics: | Executable, Large address aware |
| PEType: | PE32+ |
| LinkerVersion: | 14.44 |
| CodeSize: | 184832 |
| InitializedDataSize: | 367104 |
| UninitializedDataSize: | - |
| EntryPoint: | 0xcf30 |
| OSVersion: | 6 |
| ImageVersion: | - |
| SubsystemVersion: | 6 |
| Subsystem: | Windows command line |
Total processes
187
Monitored processes
36
Malicious processes
0
Suspicious processes
4
Behavior graph
Click at the process to see the details
Process information
PID | CMD | Path | Indicators | Parent process | |||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 468 | C:\WINDOWS\system32\cmd.exe /c cls | C:\Windows\System32\cmd.exe | — | SteamTools.exe | |||||||||||
User: admin Company: Microsoft Corporation Integrity Level: MEDIUM Description: Windows Command Processor Exit code: 0 Version: 10.0.19041.1 (WinBuild.160101.0800) Modules
| |||||||||||||||
| 684 | "C:\Program Files\Mozilla Firefox\firefox.exe" -contentproc -isForBrowser -prefsHandle 5040 -prefsLen 39330 -prefMapHandle 5044 -prefMapSize 272981 -jsInitHandle 5048 -jsInitLen 247456 -parentBuildID 20250227124745 -ipcHandle 5060 -initialChannelId {7088f962-be27-41de-85c1-ef09e891578b} -parentPid 5716 -crashReporter "\\.\pipe\gecko-crash-server-pipe.5716" -win32kLockedDown -appDir "C:\Program Files\Mozilla Firefox\browser" - 8 tab | C:\Program Files\Mozilla Firefox\firefox.exe | — | firefox.exe | |||||||||||
User: admin Company: Mozilla Corporation Integrity Level: MEDIUM Description: Firefox Exit code: 0 Version: 136.0 Modules
| |||||||||||||||
| 1156 | "C:\Program Files\Mozilla Firefox\firefox.exe" -contentproc -parentBuildID 20250227124745 -prefsHandle 3396 -prefsLen 37207 -prefMapHandle 3400 -prefMapSize 272981 -ipcHandle 3408 -initialChannelId {30408496-1e71-4b6a-be11-399f6ba38a16} -parentPid 5716 -crashReporter "\\.\pipe\gecko-crash-server-pipe.5716" -appDir "C:\Program Files\Mozilla Firefox\browser" - 4 rdd | C:\Program Files\Mozilla Firefox\firefox.exe | — | firefox.exe | |||||||||||
User: admin Company: Mozilla Corporation Integrity Level: MEDIUM Description: Firefox Exit code: 1 Version: 136.0 Modules
| |||||||||||||||
| 1868 | C:\WINDOWS\system32\cmd.exe /c title Steam Tools | C:\Windows\System32\cmd.exe | — | SteamTools.exe | |||||||||||
User: admin Company: Microsoft Corporation Integrity Level: MEDIUM Description: Windows Command Processor Exit code: 0 Version: 10.0.19041.1 (WinBuild.160101.0800) Modules
| |||||||||||||||
| 2148 | C:\WINDOWS\system32\cmd.exe /c cls | C:\Windows\System32\cmd.exe | — | SteamTools.exe | |||||||||||
User: admin Company: Microsoft Corporation Integrity Level: MEDIUM Description: Windows Command Processor Exit code: 0 Version: 10.0.19041.1 (WinBuild.160101.0800) Modules
| |||||||||||||||
| 2280 | "C:\Program Files\Mozilla Firefox\firefox.exe" -contentproc -parentBuildID 20250227124745 -prefsHandle 2016 -prefsLen 36521 -prefMapHandle 2020 -prefMapSize 272981 -ipcHandle 2084 -initialChannelId {aae0aec8-36cc-46d1-a675-afd32885f43c} -parentPid 5716 -crashReporter "\\.\pipe\gecko-crash-server-pipe.5716" -appDir "C:\Program Files\Mozilla Firefox\browser" - 1 gpu | C:\Program Files\Mozilla Firefox\firefox.exe | — | firefox.exe | |||||||||||
User: admin Company: Mozilla Corporation Integrity Level: MEDIUM Description: Firefox Exit code: 1 Version: 136.0 Modules
| |||||||||||||||
| 2564 | C:\WINDOWS\system32\cmd.exe /c cls | C:\Windows\System32\cmd.exe | — | SteamTools.exe | |||||||||||
User: admin Company: Microsoft Corporation Integrity Level: MEDIUM Description: Windows Command Processor Exit code: 0 Version: 10.0.19041.1 (WinBuild.160101.0800) Modules
| |||||||||||||||
| 2992 | "C:\Program Files (x86)\Steam\bin\steamservice.exe" /Install | C:\Program Files (x86)\Steam\bin\SteamService.exe | SteamSetup.exe | ||||||||||||
User: admin Company: Valve Corporation Integrity Level: HIGH Description: Steam Client Service Exit code: 0 Version: 08.90.88.32 Modules
| |||||||||||||||
| 3976 | "C:\Users\admin\Desktop\SteamTools.exe" | C:\Users\admin\Desktop\SteamTools.exe | explorer.exe | ||||||||||||
User: admin Integrity Level: MEDIUM Modules
| |||||||||||||||
| 4196 | C:\WINDOWS\system32\cmd.exe /c cls | C:\Windows\System32\cmd.exe | — | SteamTools.exe | |||||||||||
User: admin Company: Microsoft Corporation Integrity Level: MEDIUM Description: Windows Command Processor Exit code: 0 Version: 10.0.19041.1 (WinBuild.160101.0800) Modules
| |||||||||||||||
Total events
11 031
Read events
10 998
Write events
31
Delete events
2
Modification events
| (PID) Process: | (8396) SteamSetup.exe | Key: | HKEY_CURRENT_USER\SOFTWARE\Valve\Steam |
| Operation: | write | Name: | Language |
Value: english | |||
| (PID) Process: | (8396) SteamSetup.exe | Key: | HKEY_LOCAL_MACHINE\SOFTWARE\WOW6432Node\Valve\Steam |
| Operation: | write | Name: | Language |
Value: english | |||
| (PID) Process: | (8396) SteamSetup.exe | Key: | HKEY_CURRENT_USER\SOFTWARE\Microsoft\Windows\CurrentVersion\Run |
| Operation: | write | Name: | Steam |
Value: "C:\Program Files (x86)\Steam\steam.exe" -silent | |||
| (PID) Process: | (8396) SteamSetup.exe | Key: | HKEY_CURRENT_USER\SOFTWARE\Valve\Steam |
| Operation: | write | Name: | SteamInstaller |
Value: SteamSetup.exe | |||
| (PID) Process: | (8396) SteamSetup.exe | Key: | HKEY_LOCAL_MACHINE\SOFTWARE\WOW6432Node\Valve\Steam\NSIS |
| Operation: | write | Name: | Path |
Value: C:\Program Files (x86)\Steam | |||
| (PID) Process: | (8396) SteamSetup.exe | Key: | HKEY_LOCAL_MACHINE\SOFTWARE\WOW6432Node\Valve\Steam |
| Operation: | write | Name: | InstallPath |
Value: C:\Program Files (x86)\Steam | |||
| (PID) Process: | (8396) SteamSetup.exe | Key: | HKEY_LOCAL_MACHINE\SOFTWARE\WOW6432Node\Valve\SteamService |
| Operation: | write | Name: | installpath_default |
Value: C:\Program Files (x86)\Steam | |||
| (PID) Process: | (2992) SteamService.exe | Key: | HKEY_LOCAL_MACHINE\SOFTWARE\WOW6432Node\Valve\SteamService |
| Operation: | write | Name: | installpath_default |
Value: C:\Program Files (x86)\Steam | |||
| (PID) Process: | (2992) SteamService.exe | Key: | HKEY_LOCAL_MACHINE\SOFTWARE\WOW6432Node\Valve\Steam |
| Operation: | write | Name: | InstallPath |
Value: C:\Program Files (x86)\Steam | |||
| (PID) Process: | (2992) SteamService.exe | Key: | HKEY_LOCAL_MACHINE\SOFTWARE\Classes\steam |
| Operation: | write | Name: | URL Protocol |
Value: | |||
Executable files
45
Suspicious files
242
Text files
2 791
Unknown types
1
Dropped files
PID | Process | Filename | Type | |
|---|---|---|---|---|
| 3976 | SteamTools.exe | C:\Users\admin\AppData\Local\Temp\_MEI39762\_asyncio.pyd | executable | |
MD5:0AD3ABC085F1D954EFF9DFA83039EBB7 | SHA256:CBAD49AF7034DBC28C2E76B6875D967B71F6F699AC4589A6C51D60F9D15E62DE | |||
| 3976 | SteamTools.exe | C:\Users\admin\AppData\Local\Temp\_MEI39762\VCRUNTIME140.dll | executable | |
MD5:32DA96115C9D783A0769312C0482A62D | SHA256:8B10C53241726B0ACC9F513157E67FCB01C166FEC69E5E38CA6AADA8F9A3619F | |||
| 3976 | SteamTools.exe | C:\Users\admin\AppData\Local\Temp\_MEI39762\_bz2.pyd | executable | |
MD5:2BE172C3086EFE56C7E1D3279142295A | SHA256:7F20792D8600203F7AC0C229E1387E8D40328F9DA22D2ACBA95B3761B5E49950 | |||
| 3976 | SteamTools.exe | C:\Users\admin\AppData\Local\Temp\_MEI39762\_decimal.pyd | executable | |
MD5:240A03069D6968741B703D026337AD2C | SHA256:E23C58ACB7B4A85DE32F9FEAE60AC85F9E4580409BACA5D36EC4777F0528F3AF | |||
| 3976 | SteamTools.exe | C:\Users\admin\AppData\Local\Temp\_MEI39762\_tcl_data\encoding\big5.enc | text | |
MD5:41A874778111CC218BD421CF9C795EC2 | SHA256:AD1ED201B69855BFD353BF969DFC55576DA35A963ABF1BF7FC6D8B5142A61A61 | |||
| 3976 | SteamTools.exe | C:\Users\admin\AppData\Local\Temp\_MEI39762\_ctypes.pyd | executable | |
MD5:9314AB9707985AAF6E234B5C1FC3C3C6 | SHA256:61B0C1D7A53049859968821B7CA6289AA433B505BCA80C283EB4492EBE9FD2FD | |||
| 3976 | SteamTools.exe | C:\Users\admin\AppData\Local\Temp\_MEI39762\_cffi_backend.cp312-win_amd64.pyd | executable | |
MD5:429D90ECF87F4D8DF562BAE6B6157718 | SHA256:53DE34AFC3939D81BF2498B77425C52E2C3F3164F8CFE2543D3ACC8F24134488 | |||
| 3976 | SteamTools.exe | C:\Users\admin\AppData\Local\Temp\_MEI39762\_lzma.pyd | executable | |
MD5:7C25A079B992919CC97221955DAC050C | SHA256:7EA254E37D820EAB6E9D312C390D1039EDB78C8B7D913F5A86A91CB0261CE3FF | |||
| 3976 | SteamTools.exe | C:\Users\admin\AppData\Local\Temp\_MEI39762\_tcl_data\clock.tcl | text | |
MD5:31BB1CACF5D128F77C0922800D3E111A | SHA256:BD1C2DC481A582EF9EAB301468EC7E7C3A284C57617FB2F4A8A97C22576FC762 | |||
| 3976 | SteamTools.exe | C:\Users\admin\AppData\Local\Temp\_MEI39762\_socket.pyd | executable | |
MD5:0106EE3F61A54D922190B3A01C81A453 | SHA256:C22DF48785B684A8EBEAEF5ABFC35840A6B67926BC0366214D74842F7B71D6BA | |||
Download PCAP, analyze network streams, HTTP content and a lot more at the full report
HTTP(S) requests
451
TCP/UDP connections
125
DNS requests
142
Threats
2
HTTP requests
PID | Process | Method | HTTP Code | IP | URL | CN | Type | Size | Reputation |
|---|---|---|---|---|---|---|---|---|---|
2036 | svchost.exe | GET | 304 | 40.127.240.158:443 | https://settings-win.data.microsoft.com/settings/v3.0/WSD/UpdateHealthTools?os=Windows&osVer=10.0.19041.1.amd64fre.vb_release.191206-&sku=48&deviceClass=Windows.Desktop&locale=en-US&deviceId=s:BAD99146-31D3-4EC6-A1A4-BE76F32BA5D4&sampleId=s:95271487&appVer=10.0.19041.3626&FlightRing=Retail&TelemetryLevel=1&HidOverGattReg=C%3A%5CWINDOWS%5CSystem32%5CDriverStore%5CFileRepository%5Chidbthle.inf_amd64_9610b4821fdf82a5%5CMicrosoft.Bluetooth.Profiles.HidOverGatt.dll&AppVer=&ProcessorIdentifier=AMD64%20Family%2023%20Model%201%20Stepping%202&OEMModel=DELL&UpdateOfferedDays=4294967295&ProcessorManufacturer=AuthenticAMD&InstallDate=1661339444&OEMModelBaseBoard=&BranchReadinessLevel=CB&OEMSubModel=J5CR&IsCloudDomainJoined=0&DeferFeatureUpdatePeriodInDays=30&IsDeviceRetailDemo=0&FlightingBranchName=&OSUILocale=en-US&DeviceFamily=Windows.Desktop&WuClientVer=10.0.19041.3996&UninstallActive=1&IsFlightingEnabled=0&OSSkuId=48&ProcessorClockSpeed=3094&TotalPhysicalRAM=6144&SecureBootCapable=0&App=SedimentPack&ProcessorCores=6&CurrentBranch=vb_release&InstallLanguage=en-US&DeferQualityUpdatePeriodInDays=0&OEMName_Uncleaned=DELL&TPMVersion=0&PrimaryDiskTotalCapacity=262144&InstallationType=Client&AttrDataVer=186&ProcessorModel=AMD%20Ryzen%205%203500%206-Core%20Processor&IsEdgeWithChromiumInstalled=1&OSVersion=10.0.19045.4046&IsMDMEnrolled=0&ActivationChannel=Retail&FirmwareVersion=A.40&TrendInstalledKey=1&OSArchitecture=AMD64&DefaultUserRegion=244&UpdateManagementGroup=2 | US | — | — | whitelisted |
6768 | MoUsoCoreWorker.exe | GET | 304 | 4.231.128.59:443 | https://settings-win.data.microsoft.com/settings/v3.0/OneSettings/Client?OSVersionFull=10.0.19045.4046.amd64fre.vb_release.191206-1406&LocalDeviceID=s%3ABAD99146-31D3-4EC6-A1A4-BE76F32BA5D4&FlightRing=Retail&AttrDataVer=186&OSUILocale=en-US&OSSkuId=48&App=WOSC&AppVer=&IsFlightingEnabled=0&TelemetryLevel=1&DeviceFamily=Windows.Desktop | US | — | — | whitelisted |
7644 | SIHClient.exe | GET | 304 | 20.165.94.63:443 | https://slscr.update.microsoft.com/SLS/%7B522D76A4-93E1-47F8-B8CE-07C937AD1A1E%7D/x64/10.0.19045.4046/0?CH=686&L=en-US&P=&PT=0x30&WUA=10.0.19041.3996&MK=DELL&MD=DELL | US | — | — | whitelisted |
7644 | SIHClient.exe | GET | 200 | 74.178.76.54:443 | https://fe3cr.delivery.mp.microsoft.com/clientwebservice/ping | US | — | — | whitelisted |
7644 | SIHClient.exe | GET | 200 | 20.165.94.63:443 | https://slscr.update.microsoft.com/sls/ping | US | — | — | whitelisted |
7644 | SIHClient.exe | GET | 304 | 20.165.94.63:443 | https://slscr.update.microsoft.com/SLS/%7BE7A50285-D08D-499D-9FF8-180FDC2332BC%7D/x64/10.0.19045.4046/0?CH=686&L=en-US&P=&PT=0x30&WUA=10.0.19041.3996&MK=DELL&MD=DELL | US | — | — | whitelisted |
3292 | svchost.exe | GET | 200 | 23.52.181.212:80 | http://www.microsoft.com/pkiops/crl/Microsoft%20Update%20Signing%20CA%202.3.crl | US | binary | 813 b | whitelisted |
2036 | svchost.exe | GET | 200 | 23.55.110.211:80 | http://crl.microsoft.com/pki/crl/products/MicRooCerAut2011_2011_03_22.crl | NL | binary | 825 b | whitelisted |
3292 | svchost.exe | GET | 200 | 23.52.181.212:80 | http://www.microsoft.com/pkiops/crl/Microsoft%20ECC%20Update%20Signing%20CA%202.3.crl | US | binary | 400 b | whitelisted |
2036 | svchost.exe | GET | 200 | 88.221.169.152:80 | http://www.microsoft.com/pkiops/crl/MicSecSerCA2011_2011-10-18.crl | US | binary | 814 b | whitelisted |
Download PCAP, analyze network streams, HTTP content and a lot more at the full report
Connections
PID | Process | IP | Domain | ASN | CN | Reputation |
|---|---|---|---|---|---|---|
2036 | svchost.exe | 20.73.194.208:443 | — | MICROSOFT-CORP-MSN-AS-BLOCK | US | whitelisted |
4 | System | 192.168.100.255:137 | — | Not routed | — | whitelisted |
8404 | RUXIMICS.exe | 20.73.194.208:443 | — | MICROSOFT-CORP-MSN-AS-BLOCK | US | whitelisted |
6768 | MoUsoCoreWorker.exe | 20.73.194.208:443 | — | MICROSOFT-CORP-MSN-AS-BLOCK | US | whitelisted |
4 | System | 192.168.100.255:138 | — | Not routed | — | whitelisted |
2036 | svchost.exe | 51.124.78.146:443 | settings-win.data.microsoft.com | MICROSOFT-CORP-MSN-AS-BLOCK | US | whitelisted |
2036 | svchost.exe | 23.55.110.211:80 | crl.microsoft.com | AKAMAI-ASN1 | NL | whitelisted |
2036 | svchost.exe | 88.221.169.152:80 | www.microsoft.com | AKAMAI-AS | US | whitelisted |
2036 | svchost.exe | 40.127.240.158:443 | settings-win.data.microsoft.com | MICROSOFT-CORP-MSN-AS-BLOCK | US | whitelisted |
3412 | svchost.exe | 172.211.123.248:443 | client.wns.windows.com | MICROSOFT-CORP-MSN-AS-BLOCK | US | whitelisted |
DNS requests
Domain | IP | Reputation |
|---|---|---|
google.com |
| whitelisted |
settings-win.data.microsoft.com |
| whitelisted |
crl.microsoft.com |
| whitelisted |
www.microsoft.com |
| whitelisted |
client.wns.windows.com |
| whitelisted |
login.live.com |
| whitelisted |
ocsp.digicert.com |
| whitelisted |
slscr.update.microsoft.com |
| whitelisted |
fe3cr.delivery.mp.microsoft.com |
| whitelisted |
raw.githubusercontent.com |
| whitelisted |
Threats
PID | Process | Class | Message |
|---|---|---|---|
2292 | svchost.exe | Not Suspicious Traffic | INFO [ANY.RUN] Attempting to access raw user content on GitHub |
5716 | firefox.exe | Potential Corporate Privacy Violation | ET INFO PE EXE or DLL Windows file download HTTP |