File name:

st-setup-1.8.17r2.exe

Full analysis: https://app.any.run/tasks/265a49a0-df16-421f-98b1-3610f4f7d674
Verdict: Malicious activity
Analysis date: August 16, 2025, 17:44:58
OS: Windows 10 Professional (build: 19044, 64 bit)
Indicators:
MIME: application/vnd.microsoft.portable-executable
File info: PE32+ executable (GUI) x86-64 (stripped to external PDB), for MS Windows, 9 sections
MD5:

2B45350F1CFC20CF110B8D16FBE9CA36

SHA1:

C78813CCC683A684092C3287A4EB84136BB6438B

SHA256:

D3B3171D52BC5FD5A41B3775D24E128F39FD9CE2887A6F8684F63BA61FB522CD

SSDEEP:

98304:L+QpfueC8oj9SZyn59/tZHTDTW+j8F1V8uHPAIQsxsjKMSFCNOuiEsA/Vfng9azQ:JiQtSqdt72hRI0Q

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

    No malicious indicators.

  • SUSPICIOUS

    • Executable content was dropped or overwritten

      • st-setup-1.8.17r2.exe (PID: 2148)

    • Uses ICACLS.EXE to modify access control lists

      • st-setup-1.8.17r2.exe (PID: 2148)

    • Process drops legitimate windows executable

      • st-setup-1.8.17r2.exe (PID: 2148)

    • The process drops C-runtime libraries

      • st-setup-1.8.17r2.exe (PID: 2148)

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

      • st-setup-1.8.17r2.exe (PID: 2148)

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

      • st-setup-1.8.17r2.exe (PID: 2148)

    • Creates a software uninstall entry

      • st-setup-1.8.17r2.exe (PID: 2148)

    • Explorer used for Indirect Command Execution

      • explorer.exe (PID: 5432)

    • Starts CMD.EXE for commands execution

      • explorer.exe (PID: 2292)

    • Executing commands from a ".bat" file

      • explorer.exe (PID: 2292)

    • There is functionality for taking screenshot (YARA)

      • SteamTools.exe (PID: 3964)

  • INFO

    • Create files in a temporary directory

      • st-setup-1.8.17r2.exe (PID: 2148)

    • Reads the computer name

      • st-setup-1.8.17r2.exe (PID: 2148)
      • SteamTools.exe (PID: 3964)

    • Creates files in the program directory

      • st-setup-1.8.17r2.exe (PID: 2148)

    • The sample compiled with english language support

      • st-setup-1.8.17r2.exe (PID: 2148)

    • Checks supported languages

      • st-setup-1.8.17r2.exe (PID: 2148)
      • SteamTools.exe (PID: 1212)
      • SteamTools.exe (PID: 3964)

    • Creates files or folders in the user directory

      • st-setup-1.8.17r2.exe (PID: 2148)

    • Reads security settings of Internet Explorer

      • explorer.exe (PID: 2292)

    • Manual execution by a user

      • SteamTools.exe (PID: 1212)

    • Checks proxy server information

      • SteamTools.exe (PID: 3964)
Find more information about signature artifacts and mapping to MITRE ATT&CK™ MATRIX at the full report
No Malware configuration.

TRiD

.exe | Win64 Executable (generic) (87.3)
.exe | Generic Win/DOS Executable (6.3)
.exe | DOS Executable Generic (6.3)

EXIF

EXE

MachineType: AMD AMD64
TimeStamp: 2025:02:08 08:31:08+00:00
ImageFileCharacteristics: No relocs, Executable, No line numbers, No symbols, Large address aware, No debug
PEType: PE32+
LinkerVersion: 2.38
CodeSize: 37376
InitializedDataSize: 51712
UninitializedDataSize: 291328
EntryPoint: 0x43b3
OSVersion: 5.1
ImageVersion: 6
SubsystemVersion: 5.1
Subsystem: Windows GUI
No data.
screenshotscreenshotscreenshotscreenshotscreenshotscreenshotscreenshotscreenshotscreenshotscreenshotscreenshotscreenshotscreenshotscreenshotscreenshotscreenshotscreenshotscreenshotscreenshotscreenshotscreenshotscreenshotscreenshot
All screenshots are available in the full report
All screenshots are available in the full report
Total processes
147
Monitored processes
13
Malicious processes
1
Suspicious processes
0

Behavior graph

Click at the process to see the details
start st-setup-1.8.17r2.exe icacls.exe no specs conhost.exe no specs icacls.exe no specs conhost.exe no specs explorer.exe no specs explorer.exe no specs cmd.exe no specs conhost.exe no specs steamtools.exe steamtools.exe no specs slui.exe no specs st-setup-1.8.17r2.exe no specs

Process information

PID
CMD
Path
Indicators
Parent process
1148"C:\Users\admin\AppData\Local\Temp\st-setup-1.8.17r2.exe" C:\Users\admin\AppData\Local\Temp\st-setup-1.8.17r2.exe—explorer.exe
User:
admin
Integrity Level:
MEDIUM
Exit code:
3221226540
Modules
Images
c:\users\admin\appdata\local\temp\st-setup-1.8.17r2.exe
c:\windows\system32\ntdll.dll
1212"C:\Program Files\SteamTools\SteamTools.exe" C:\Program Files\SteamTools\SteamTools.exe—explorer.exe
User:
admin
Company:
steamtools.net
Integrity Level:
MEDIUM
Description:
Steamtools
Exit code:
0
Version:
1.8.1.5
Modules
Images
c:\program files\steamtools\steamtools.exe
c:\windows\system32\ntdll.dll
c:\windows\system32\kernel32.dll
c:\windows\system32\kernelbase.dll
c:\windows\system32\apphelp.dll
c:\windows\system32\user32.dll
c:\windows\system32\win32u.dll
c:\windows\system32\gdi32.dll
c:\windows\system32\gdi32full.dll
c:\windows\system32\msvcp_win.dll
2032icacls "C:\Program Files\SteamTools" /grant:r "*S-1-5-32-545:(OI)(CI)F" /TC:\Windows\System32\icacls.exe—st-setup-1.8.17r2.exe
User:
admin
Company:
Microsoft Corporation
Integrity Level:
HIGH
Exit code:
0
Version:
10.0.19041.1 (WinBuild.160101.0800)
Modules
Images
c:\windows\system32\icacls.exe
c:\windows\system32\ntdll.dll
c:\windows\system32\kernel32.dll
c:\windows\system32\kernelbase.dll
c:\windows\system32\apphelp.dll
c:\windows\system32\msvcrt.dll
c:\windows\system32\advapi32.dll
c:\windows\system32\sechost.dll
c:\windows\system32\rpcrt4.dll
c:\windows\system32\bcrypt.dll
2040\??\C:\WINDOWS\system32\conhost.exe 0xffffffff -ForceV1C:\Windows\System32\conhost.exe—icacls.exe
User:
admin
Company:
Microsoft Corporation
Integrity Level:
HIGH
Description:
Console Window Host
Exit code:
0
Version:
10.0.19041.1 (WinBuild.160101.0800)
Modules
Images
c:\windows\system32\conhost.exe
c:\windows\system32\ntdll.dll
c:\windows\system32\kernel32.dll
c:\windows\system32\kernelbase.dll
c:\windows\system32\msvcp_win.dll
c:\windows\system32\ucrtbase.dll
c:\windows\system32\shcore.dll
c:\windows\system32\msvcrt.dll
c:\windows\system32\combase.dll
c:\windows\system32\rpcrt4.dll
2148"C:\Users\admin\AppData\Local\Temp\st-setup-1.8.17r2.exe" C:\Users\admin\AppData\Local\Temp\st-setup-1.8.17r2.exe
explorer.exe
User:
admin
Integrity Level:
HIGH
Exit code:
0
Modules
Images
c:\users\admin\appdata\local\temp\st-setup-1.8.17r2.exe
c:\windows\system32\ntdll.dll
c:\windows\system32\kernel32.dll
c:\windows\system32\kernelbase.dll
c:\windows\system32\apphelp.dll
c:\windows\system32\advapi32.dll
c:\windows\system32\msvcrt.dll
c:\windows\system32\sechost.dll
c:\windows\system32\rpcrt4.dll
c:\windows\system32\bcrypt.dll
2292C:\WINDOWS\explorer.exe /factory,{75dff2b7-6936-4c06-a8bb-676a7b00b24b} -EmbeddingC:\Windows\explorer.exe—svchost.exe
User:
admin
Company:
Microsoft Corporation
Integrity Level:
MEDIUM
Description:
Windows Explorer
Version:
10.0.19041.3758 (WinBuild.160101.0800)
Modules
Images
c:\windows\explorer.exe
c:\windows\system32\ntdll.dll
c:\windows\system32\kernel32.dll
c:\windows\system32\kernelbase.dll
c:\windows\system32\msvcp_win.dll
c:\windows\system32\ucrtbase.dll
c:\windows\system32\combase.dll
c:\windows\system32\rpcrt4.dll
c:\windows\system32\oleaut32.dll
c:\windows\system32\aepic.dll
3964"C:\Program Files\SteamTools\SteamTools.exe" C:\Program Files\SteamTools\SteamTools.exe
cmd.exe
User:
admin
Company:
steamtools.net
Integrity Level:
MEDIUM
Description:
Steamtools
Exit code:
0
Version:
1.8.1.5
Modules
Images
c:\program files\steamtools\steamtools.exe
c:\windows\system32\ntdll.dll
c:\windows\system32\kernel32.dll
c:\windows\system32\kernelbase.dll
c:\windows\system32\apphelp.dll
c:\windows\system32\user32.dll
c:\windows\system32\win32u.dll
c:\windows\system32\gdi32.dll
c:\windows\system32\gdi32full.dll
c:\windows\system32\msvcp_win.dll
5432"C:\WINDOWS\explorer.exe" "C:\Users\admin\AppData\Local\Temp\SteamTools_launcher.bat"C:\Windows\explorer.exe—st-setup-1.8.17r2.exe
User:
admin
Company:
Microsoft Corporation
Integrity Level:
HIGH
Description:
Windows Explorer
Exit code:
1
Version:
10.0.19041.3758 (WinBuild.160101.0800)
Modules
Images
c:\windows\explorer.exe
c:\windows\system32\ntdll.dll
c:\windows\system32\kernel32.dll
c:\windows\system32\kernelbase.dll
c:\windows\system32\apphelp.dll
c:\windows\system32\msvcp_win.dll
c:\windows\system32\ucrtbase.dll
c:\windows\system32\combase.dll
c:\windows\system32\rpcrt4.dll
c:\windows\system32\oleaut32.dll
5600C:\WINDOWS\system32\cmd.exe /c ""C:\Users\admin\AppData\Local\Temp\SteamTools_launcher.bat" "C:\Windows\System32\cmd.exe—explorer.exe
User:
admin
Company:
Microsoft Corporation
Integrity Level:
MEDIUM
Description:
Windows Command Processor
Exit code:
1
Version:
10.0.19041.1 (WinBuild.160101.0800)
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\combase.dll
c:\windows\system32\ucrtbase.dll
c:\windows\system32\rpcrt4.dll
c:\windows\system32\cmdext.dll
c:\windows\system32\advapi32.dll
6224\??\C:\WINDOWS\system32\conhost.exe 0xffffffff -ForceV1C:\Windows\System32\conhost.exe—icacls.exe
User:
admin
Company:
Microsoft Corporation
Integrity Level:
HIGH
Description:
Console Window Host
Exit code:
0
Version:
10.0.19041.1 (WinBuild.160101.0800)
Modules
Images
c:\windows\system32\conhost.exe
c:\windows\system32\ntdll.dll
c:\windows\system32\kernel32.dll
c:\windows\system32\kernelbase.dll
c:\windows\system32\msvcp_win.dll
c:\windows\system32\ucrtbase.dll
c:\windows\system32\shcore.dll
c:\windows\system32\msvcrt.dll
c:\windows\system32\combase.dll
c:\windows\system32\rpcrt4.dll
Total events
1 711
Read events
1 695
Write events
16
Delete events
0

Modification events

(PID) Process:(2148) st-setup-1.8.17r2.exeKey:HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Uninstall\SteamTools
Operation:writeName:DisplayName
Value:
SteamTools
(PID) Process:(2148) st-setup-1.8.17r2.exeKey:HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Uninstall\SteamTools
Operation:writeName:UninstallString
Value:
"C:\Program Files\SteamTools\Uninstall.exe"
(PID) Process:(2148) st-setup-1.8.17r2.exeKey:HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Uninstall\SteamTools
Operation:writeName:QuietUninstallString
Value:
"C:\Program Files\SteamTools\Uninstall.exe" /S
(PID) Process:(2148) st-setup-1.8.17r2.exeKey:HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Uninstall\SteamTools
Operation:writeName:InstallLocation
Value:
C:\Program Files\SteamTools
(PID) Process:(2148) st-setup-1.8.17r2.exeKey:HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Uninstall\SteamTools
Operation:writeName:DisplayIcon
Value:
C:\Program Files\SteamTools\SteamTools.exe,0
(PID) Process:(2148) st-setup-1.8.17r2.exeKey:HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Uninstall\SteamTools
Operation:writeName:NoModify
Value:
1
(PID) Process:(2148) st-setup-1.8.17r2.exeKey:HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Uninstall\SteamTools
Operation:writeName:NoRepair
Value:
1
(PID) Process:(2148) st-setup-1.8.17r2.exeKey:HKEY_LOCAL_MACHINE\SOFTWARE\SteamTools
Operation:writeName:Language
Value:
1033
(PID) Process:(3964) SteamTools.exeKey:HKEY_CURRENT_USER\SOFTWARE\Valve\Steamtools
Operation:writeName:SteamPath
Value:
C:/Program Files/SteamTools
(PID) Process:(3964) SteamTools.exeKey:HKEY_CURRENT_USER\SOFTWARE\Valve\Steamtools
Operation:writeName:fScreenIndex
Value:
0
Executable files
17
Suspicious files
0
Text files
3
Unknown types
3

Dropped files

PID
Process
Filename
Type
2148st-setup-1.8.17r2.exeC:\Users\admin\AppData\Local\Temp\nspCC54.tmp\modern-header.bmpimage
MD5:F1928D020EBD3BF2C54FB46B3253F2A9
SHA256:A928EDA70352B4BF7FE85EBEE91B1CA819AD78A4DBA4547B95A1A3FFF51F89DD
2148st-setup-1.8.17r2.exeC:\Program Files\SteamTools\Core.dllexecutable
MD5:22AEB63890B7BC6CAC78E3C0501BEFF0
SHA256:2C32B0318555915DE7A27F92B8B77CF6730F869968924910734B265C516568E8
2148st-setup-1.8.17r2.exeC:\Users\admin\AppData\Local\Temp\nspCC54.tmp\nsDialogs.dllexecutable
MD5:9CBB2C67258DF6CFC08E060BD8AB8309
SHA256:4AEC3A5A78295861C8AD96B70B0520C541EA4DF60651615802AD066780CE2296
2148st-setup-1.8.17r2.exeC:\Users\admin\AppData\Local\Temp\nspCC54.tmp\modern-wizard.bmpimage
MD5:3614A4BE6B610F1DAF6C801574F161FE
SHA256:16E0EDC9F47E6E95A9BCAD15ADBDC46BE774FBCD045DD526FC16FC38FDC8D49B
2148st-setup-1.8.17r2.exeC:\Program Files\SteamTools\platforms\qwindows.dllexecutable
MD5:4931FCD0E86C4D4F83128DC74E01EAAD
SHA256:3333BA244C97264E3BD19DB5953EFA80A6E47AACED9D337AC3287EC718162B85
2148st-setup-1.8.17r2.exeC:\Users\admin\AppData\Local\Temp\nspCC54.tmp\System.dllexecutable
MD5:E74573CE106DD95B148BB8B1EF8E3418
SHA256:D12BC87BF84C51C13F0877949BCD719C5B90D9DF8658A2F8036DDC262CB0D87B
2148st-setup-1.8.17r2.exeC:\Program Files\SteamTools\Qt5Core.dllexecutable
MD5:817520432A42EFA345B2D97F5C24510E
SHA256:8D2FF4CE9096DDCCC4F4CD62C2E41FC854CFD1B0D6E8D296645A7F5FD4AE565A
2148st-setup-1.8.17r2.exeC:\Program Files\SteamTools\Qt5Network.dllexecutable
MD5:3569693D5BAE82854DE1D88F86C33184
SHA256:4EF341AE9302E793878020F0740B09B0F31CB380408A697F75C69FDBD20FC7A1
2148st-setup-1.8.17r2.exeC:\Program Files\SteamTools\Qt5Svg.dllexecutable
MD5:03761F923E52A7269A6E3A7452F6BE93
SHA256:7348CFC6444438B8845FB3F59381227325D40CA2187D463E82FC7B8E93E38DB5
2148st-setup-1.8.17r2.exeC:\Program Files\SteamTools\msvcp140_1.dllexecutable
MD5:18A6C1A3D630DFCBC227082D5B06681A
SHA256:AF589D441CD97638B1A0B9192A4014C52B64B35ECF5437CAA65F27B3583E07AA
Download PCAP, analyze network streams, HTTP content and a lot more at the full report
HTTP(S) requests
7
TCP/UDP connections
21
DNS requests
19
Threats
4

HTTP requests

PID
Process
Method
HTTP Code
IP
URL
CN
Type
Size
Reputation
1268
svchost.exe
GET
200
184.30.21.171:80
http://www.microsoft.com/pkiops/crl/MicSecSerCA2011_2011-10-18.crl
unknown
—
—
whitelisted
3964
SteamTools.exe
GET
302
122.188.45.182:80
http://new-service.biliapi.net/picture/chatres/update/version2.txt
unknown
—
—
unknown
1268
svchost.exe
GET
200
23.216.77.16:80
http://crl.microsoft.com/pki/crl/products/MicRooCerAut2011_2011_03_22.crl
unknown
—
—
whitelisted
3964
SteamTools.exe
GET
200
8.133.135.83:80
http://stools.oss-cn-shanghai.aliyuncs.com/version2.txt
unknown
—
—
unknown
7032
SIHClient.exe
GET
200
184.30.21.171:80
http://www.microsoft.com/pkiops/crl/Microsoft%20ECC%20Update%20Secure%20Server%20CA%202.1.crl
unknown
—
—
whitelisted
7032
SIHClient.exe
GET
200
184.30.21.171:80
http://www.microsoft.com/pkiops/crl/Microsoft%20ECC%20Product%20Root%20Certificate%20Authority%202018.crl
unknown
—
—
whitelisted
1488
svchost.exe
GET
200
184.30.131.245:80
http://ocsp.digicert.com/MFEwTzBNMEswSTAJBgUrDgMCGgUABBSAUQYBMq2awn1Rh6Doh%2FsBYgFV7gQUA95QNVbRTLtm8KPiGxvDl7I90VUCEAJ0LqoXyo4hxxe7H%2Fz9DKA%3D
unknown
—
—
whitelisted
Download PCAP, analyze network streams, HTTP content and a lot more at the full report

Connections

PID
Process
IP
Domain
ASN
CN
Reputation
5944
MoUsoCoreWorker.exe
51.104.136.2:443
settings-win.data.microsoft.com
MICROSOFT-CORP-MSN-AS-BLOCK
IE
whitelisted
4
System
192.168.100.255:137
—
—
—
whitelisted
1268
svchost.exe
51.104.136.2:443
settings-win.data.microsoft.com
MICROSOFT-CORP-MSN-AS-BLOCK
IE
whitelisted
5348
RUXIMICS.exe
51.104.136.2:443
settings-win.data.microsoft.com
MICROSOFT-CORP-MSN-AS-BLOCK
IE
whitelisted
4
System
192.168.100.255:138
—
—
—
whitelisted
1268
svchost.exe
23.216.77.16:80
crl.microsoft.com
Akamai International B.V.
DE
whitelisted
1268
svchost.exe
184.30.21.171:80
www.microsoft.com
AKAMAI-AS
DE
whitelisted
3964
SteamTools.exe
122.188.45.182:80
new-service.biliapi.net
CHINA UNICOM China169 Backbone
CN
unknown
3964
SteamTools.exe
8.133.135.83:80
stools.oss-cn-shanghai.aliyuncs.com
Hangzhou Alibaba Advertising Co.,Ltd.
CN
unknown
1488
svchost.exe
40.126.31.131:443
login.live.com
MICROSOFT-CORP-MSN-AS-BLOCK
IE
whitelisted

DNS requests

Domain
IP
Reputation
settings-win.data.microsoft.com
  • 51.104.136.2
  • 4.231.128.59
whitelisted
google.com
  • 216.58.212.142
whitelisted
crl.microsoft.com
  • 23.216.77.16
  • 23.216.77.18
  • 23.216.77.43
  • 23.216.77.6
  • 23.216.77.12
  • 23.216.77.4
  • 23.216.77.20
  • 23.216.77.13
  • 23.216.77.5
whitelisted
www.microsoft.com
  • 184.30.21.171
whitelisted
steamtools.info
  • —
unknown
new-service.biliapi.net
  • 122.188.45.182
  • 59.83.212.226
  • 60.221.17.73
  • 122.192.127.62
  • 118.212.139.66
  • 122.188.45.140
  • 122.188.44.51
unknown
stools.oss-cn-shanghai.aliyuncs.com
  • 8.133.135.83
unknown
login.live.com
  • 40.126.31.131
  • 40.126.31.129
  • 20.190.159.73
  • 20.190.159.128
  • 20.190.159.0
  • 40.126.31.128
  • 20.190.159.75
  • 20.190.159.71
whitelisted
ocsp.digicert.com
  • 184.30.131.245
whitelisted
slscr.update.microsoft.com
  • 20.165.94.63
whitelisted

Threats

PID
Process
Class
Message
—
—
Unknown Traffic
ET USER_AGENTS Microsoft Dr Watson User-Agent (MSDW)
3964
SteamTools.exe
Misc activity
INFO [ANY.RUN] USER_AGENTS Suspicious User-Agent (Mozilla/5.0)
2200
svchost.exe
Misc activity
ET INFO DNS Query to Alibaba Cloud CDN Domain (aliyuncs .com)
3964
SteamTools.exe
Misc activity
INFO [ANY.RUN] USER_AGENTS Suspicious User-Agent (Mozilla/5.0)
Process
Message
SteamTools.exe
QCoreApplication::applicationFilePath: Please instantiate the QApplication object first
SteamTools.exe
"steamPath:"
SteamTools.exe
?????????????? "Host steamtools.info not found"
SteamTools.exe
?????????????? "Unknown error"
SteamTools.exe
Left Click - Action: "Launch Steam" ""
SteamTools.exe
Left Click - Action: "Exit" ""
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Reports
st-setup-1.8.17r2.exe