File name:

SteamSetup.exe

Full analysis: https://app.any.run/tasks/6eed1b94-2192-4dc6-a6f7-be2c9598d66f
Verdict: Malicious activity
Analysis date: July 05, 2025, 21:27:27
OS: Windows 10 Professional (build: 19044, 64 bit)
Tags:
auto-reg
Indicators:
MIME: application/vnd.microsoft.portable-executable
File info: PE32 executable (GUI) Intel 80386, for MS Windows, Nullsoft Installer self-extracting archive, 5 sections
MD5:

1B54B70BEEF8EB240DB31718E8F7EB5D

SHA1:

DA5995070737EC655824C92622333C489EB6BCE4

SHA256:

7D3654531C32D941B8CAE81C4137FC542172BFA9635F169CB392F245A0A12BCB

SSDEEP:

98304:S6RFwVoL8grR2bFl3BZmIsejD4m1DnSM3JeZ7FLoiPApPyDqwsd84+e0lLQbolhV:SAbrIo

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

    • Changes the autorun value in the registry

      • SteamSetup.exe (PID: 2076)

  • SUSPICIOUS

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

      • SteamSetup.exe (PID: 2076)

    • Executable content was dropped or overwritten

      • SteamSetup.exe (PID: 2076)
      • SteamService.exe (PID: 7136)

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

      • SteamSetup.exe (PID: 2076)

    • Creates a software uninstall entry

      • SteamSetup.exe (PID: 2076)

    • There is functionality for taking screenshot (YARA)

      • SteamSetup.exe (PID: 2076)
      • Steam.exe (PID: 5548)

  • INFO

    • Create files in a temporary directory

      • SteamSetup.exe (PID: 2076)

    • The sample compiled with bulgarian language support

      • SteamSetup.exe (PID: 2076)

    • Checks supported languages

      • SteamSetup.exe (PID: 2076)
      • SteamService.exe (PID: 7136)
      • Steam.exe (PID: 6304)
      • Steam.exe (PID: 5548)

    • Reads the computer name

      • SteamSetup.exe (PID: 2076)
      • SteamService.exe (PID: 7136)
      • Steam.exe (PID: 5548)

    • The sample compiled with english language support

      • SteamSetup.exe (PID: 2076)
      • SteamService.exe (PID: 7136)

    • Creates files in the program directory

      • SteamSetup.exe (PID: 2076)
      • SteamService.exe (PID: 7136)
      • Steam.exe (PID: 5548)

    • Launching a file from a Registry key

      • SteamSetup.exe (PID: 2076)

    • Manual execution by a user

      • Steam.exe (PID: 5548)
      • Steam.exe (PID: 6304)

    • Checks proxy server information

      • Steam.exe (PID: 5548)
      • slui.exe (PID: 3952)

    • Reads the software policy settings

      • Steam.exe (PID: 5548)
      • slui.exe (PID: 3952)

    • Reads the machine GUID from the registry

      • Steam.exe (PID: 5548)

    • Reads CPU info

      • Steam.exe (PID: 5548)
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: 2016:07:25 00:55:51+00:00
ImageFileCharacteristics: No relocs, Executable, No line numbers, No symbols, 32-bit
PEType: PE32
LinkerVersion: 6
CodeSize: 25088
InitializedDataSize: 141824
UninitializedDataSize: 2048
EntryPoint: 0x33b6
OSVersion: 4
ImageVersion: 6
SubsystemVersion: 4
Subsystem: Windows GUI
FileVersionNumber: 2.10.91.91
ProductVersionNumber: 2.10.91.91
FileFlagsMask: 0x0000
FileFlags: (none)
FileOS: Win32
ObjectFileType: Executable application
FileSubtype: -
LanguageCode: Bulgarian
CharacterSet: Windows, Cyrillic
FileDescription: Steam
FileVersion: 2.10.91.91
LegalCopyright: © Valve Corporation
ProductName: Steam
No data.
screenshotscreenshotscreenshotscreenshotscreenshotscreenshotscreenshotscreenshotscreenshotscreenshotscreenshotscreenshotscreenshotscreenshotscreenshotscreenshotscreenshotscreenshotscreenshotscreenshotscreenshotscreenshotscreenshotscreenshotscreenshot
All screenshots are available in the full report
All screenshots are available in the full report
Total processes
140
Monitored processes
7
Malicious processes
1
Suspicious processes
0

Behavior graph

Click at the process to see the details
start steamsetup.exe steamservice.exe conhost.exe no specs steam.exe steam.exe no specs slui.exe steamsetup.exe no specs

Process information

PID
CMD
Path
Indicators
Parent process
2076"C:\Users\admin\Desktop\SteamSetup.exe" C:\Users\admin\Desktop\SteamSetup.exe
explorer.exe
User:
admin
Integrity Level:
HIGH
Description:
Steam
Exit code:
0
Version:
2.10.91.91
Modules
Images
c:\users\admin\desktop\steamsetup.exe
c:\windows\system32\ntdll.dll
c:\windows\syswow64\ntdll.dll
c:\windows\system32\wow64.dll
c:\windows\system32\wow64win.dll
c:\windows\system32\wow64cpu.dll
c:\windows\syswow64\kernel32.dll
c:\windows\syswow64\kernelbase.dll
c:\windows\syswow64\apphelp.dll
c:\windows\syswow64\user32.dll
3952C:\WINDOWS\System32\slui.exe -EmbeddingC:\Windows\System32\slui.exe
svchost.exe
User:
admin
Company:
Microsoft Corporation
Integrity Level:
MEDIUM
Description:
Windows Activation Client
Exit code:
0
Version:
10.0.19041.1 (WinBuild.160101.0800)
Modules
Images
c:\windows\system32\slui.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\bcrypt.dll
c:\windows\system32\user32.dll
4412"C:\Users\admin\Desktop\SteamSetup.exe" C:\Users\admin\Desktop\SteamSetup.exe—explorer.exe
User:
admin
Integrity Level:
MEDIUM
Description:
Steam
Exit code:
3221226540
Version:
2.10.91.91
Modules
Images
c:\users\admin\desktop\steamsetup.exe
c:\windows\system32\ntdll.dll
c:\windows\syswow64\ntdll.dll
4920\??\C:\WINDOWS\system32\conhost.exe 0xffffffff -ForceV1C:\Windows\System32\conhost.exe—SteamService.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
5548"C:\Program Files (x86)\Steam\steam.exe" -silentC:\Program Files (x86)\Steam\Steam.exe
explorer.exe
User:
admin
Company:
Valve Corporation
Integrity Level:
MEDIUM
Description:
Steam
Version:
08.90.88.32
Modules
Images
c:\program files (x86)\steam\steam.exe
c:\windows\system32\ntdll.dll
c:\windows\syswow64\ntdll.dll
c:\windows\system32\wow64.dll
c:\windows\system32\wow64win.dll
c:\windows\system32\wow64cpu.dll
c:\windows\syswow64\kernel32.dll
c:\windows\syswow64\kernelbase.dll
c:\windows\syswow64\user32.dll
c:\windows\syswow64\win32u.dll
6304"C:\Program Files (x86)\Steam\steam.exe" C:\Program Files (x86)\Steam\Steam.exe—explorer.exe
User:
admin
Company:
Valve Corporation
Integrity Level:
MEDIUM
Description:
Steam
Exit code:
0
Version:
08.90.88.32
Modules
Images
c:\program files (x86)\steam\steam.exe
c:\windows\system32\ntdll.dll
c:\windows\syswow64\ntdll.dll
c:\windows\system32\wow64.dll
c:\windows\system32\wow64win.dll
c:\windows\system32\wow64cpu.dll
c:\windows\syswow64\kernel32.dll
c:\windows\syswow64\kernelbase.dll
c:\windows\syswow64\user32.dll
c:\windows\syswow64\win32u.dll
7136"C:\Program Files (x86)\Steam\bin\steamservice.exe" /InstallC:\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
Images
c:\program files (x86)\steam\bin\steamservice.exe
c:\windows\system32\ntdll.dll
c:\windows\syswow64\ntdll.dll
c:\windows\system32\wow64.dll
c:\windows\system32\wow64win.dll
c:\windows\system32\wow64cpu.dll
c:\windows\syswow64\kernel32.dll
c:\windows\syswow64\kernelbase.dll
c:\windows\syswow64\apphelp.dll
c:\windows\syswow64\user32.dll
Total events
7 146
Read events
7 116
Write events
28
Delete events
2

Modification events

(PID) Process:(7136) SteamService.exeKey:HKEY_LOCAL_MACHINE\SOFTWARE\WOW6432Node\Valve\Steam
Operation:writeName:InstallPath
Value:
C:\Program Files (x86)\Steam
(PID) Process:(2076) SteamSetup.exeKey:HKEY_LOCAL_MACHINE\SOFTWARE\WOW6432Node\Microsoft\Windows\CurrentVersion\Uninstall\Steam
Operation:writeName:DisplayName
Value:
Steam
(PID) Process:(2076) SteamSetup.exeKey:HKEY_LOCAL_MACHINE\SOFTWARE\WOW6432Node\Microsoft\Windows\CurrentVersion\Uninstall\Steam
Operation:writeName:DisplayVersion
Value:
2.10.91.91
(PID) Process:(2076) SteamSetup.exeKey:HKEY_CURRENT_USER\SOFTWARE\Valve\Steam
Operation:writeName:Language
Value:
english
(PID) Process:(2076) SteamSetup.exeKey:HKEY_LOCAL_MACHINE\SOFTWARE\WOW6432Node\Valve\Steam
Operation:writeName:Language
Value:
english
(PID) Process:(2076) SteamSetup.exeKey:HKEY_CURRENT_USER\SOFTWARE\Microsoft\Windows\CurrentVersion\Run
Operation:writeName:Steam
Value:
"C:\Program Files (x86)\Steam\steam.exe" -silent
(PID) Process:(2076) SteamSetup.exeKey:HKEY_CURRENT_USER\SOFTWARE\Valve\Steam
Operation:writeName:SteamInstaller
Value:
SteamSetup.exe
(PID) Process:(7136) SteamService.exeKey:HKEY_LOCAL_MACHINE\SOFTWARE\WOW6432Node\Valve\SteamService
Operation:writeName:installpath_default
Value:
C:\Program Files (x86)\Steam
(PID) Process:(7136) SteamService.exeKey:HKEY_LOCAL_MACHINE\SOFTWARE\Classes\steam
Operation:writeName:URL Protocol
Value:
(PID) Process:(7136) SteamService.exeKey:HKEY_LOCAL_MACHINE\SOFTWARE\Classes\steamlink
Operation:writeName:URL Protocol
Value:
Executable files
9
Suspicious files
156
Text files
1 222
Unknown types
0

Dropped files

PID
Process
Filename
Type
2076SteamSetup.exeC:\Users\admin\AppData\Local\Temp\nsb5E8D.tmp\System.dllexecutable
MD5:A36FBE922FFAC9CD85A845D7A813F391
SHA256:FA367AE36BFBE7C989C24C7ABBB13482FC20BC35E7812DC377AA1C281EE14CC0
2076SteamSetup.exeC:\Users\admin\AppData\Local\Temp\nsb5E8D.tmp\modern-wizard.bmpimage
MD5:3614A4BE6B610F1DAF6C801574F161FE
SHA256:16E0EDC9F47E6E95A9BCAD15ADBDC46BE774FBCD045DD526FC16FC38FDC8D49B
2076SteamSetup.exeC:\Users\admin\AppData\Local\Temp\nsb5E8D.tmp\modern-header.bmpimage
MD5:DA3486D12BB4C8AEC16BD9E0D363D23F
SHA256:D93B76D51BD2214FA6E999C1BF70B4AFF5165A6542F9B9B2A92B5672601F4624
2076SteamSetup.exeC:\Program Files (x86)\Steam\Steam.exeexecutable
MD5:33BCB1C8975A4063A134A72803E0CA16
SHA256:12222B0908EB69581985F7E04AA6240E928FB08AA5A3EC36ACAE3440633C9EB1
2076SteamSetup.exeC:\Users\admin\AppData\Local\Temp\nsb5E8D.tmp\nsDialogs.dllexecutable
MD5:4E5BC4458AFA770636F2806EE0A1E999
SHA256:91A484DC79BE64DD11BF5ACB62C893E57505FCD8809483AA92B04F10D81F9DE0
2076SteamSetup.exeC:\Program Files (x86)\Steam\public\steambootstrapper_finnish.txttext
MD5:9E62FC923C65BFC3F40AAF6EC4FD1010
SHA256:8FF0F3CBDF28102FF037B9CDA90590E4B66E1E654B90F9AEA2CD5364494D02B7
2076SteamSetup.exeC:\Program Files (x86)\Steam\public\steambootstrapper_hungarian.txttext
MD5:18AAAF5FFCDD21B1B34291E812D83063
SHA256:1F45BB7BDFA01424F9237EEC60EBA35DC7F0DC4E8C2E193FE768FE96D3FF76D5
2076SteamSetup.exeC:\Program Files (x86)\Steam\public\steambootstrapper_indonesian.txttext
MD5:1514D082B672B372CDFB8DD85C3437F1
SHA256:3B3C5C615FD82070CC951AB482D3DE8CB12DF0B3DF59FBD11F9D3271FA2FBCA4
2076SteamSetup.exeC:\Program Files (x86)\Steam\public\steambootstrapper_danish.txttext
MD5:03B664BD98485425C21CDF83BC358703
SHA256:FDF7B42B3B027A12E1B79CB10AB9E6E34C668B04EB9E8A907D8611BA46473115
2076SteamSetup.exeC:\Program Files (x86)\Steam\public\steambootstrapper_italian.txttext
MD5:8958371646901EAC40807EEB2F346382
SHA256:B01EC64D75FD1FBD00FBEB45A3FB39244911A8B22BB43DE4E0C03F205184F585
Download PCAP, analyze network streams, HTTP content and a lot more at the full report
HTTP(S) requests
25
TCP/UDP connections
25
DNS requests
9
Threats
1

HTTP requests

PID
Process
Method
HTTP Code
IP
URL
CN
Type
Size
Reputation
1268
svchost.exe
GET
200
2.16.168.114:80
http://crl.microsoft.com/pki/crl/products/MicRooCerAut2011_2011_03_22.crl
unknown
—
—
whitelisted
5944
MoUsoCoreWorker.exe
GET
200
95.101.149.131:80
http://www.microsoft.com/pkiops/crl/MicSecSerCA2011_2011-10-18.crl
unknown
—
—
whitelisted
1268
svchost.exe
GET
200
95.101.149.131:80
http://www.microsoft.com/pkiops/crl/MicSecSerCA2011_2011-10-18.crl
unknown
—
—
whitelisted
5876
RUXIMICS.exe
GET
200
95.101.149.131:80
http://www.microsoft.com/pkiops/crl/MicSecSerCA2011_2011-10-18.crl
unknown
—
—
whitelisted
—
—
GET
200
151.101.195.52:443
https://cdn.steamstatic.com/client/steam_client_win32
unknown
text
8.12 Kb
whitelisted
—
—
GET
200
151.101.195.52:443
https://cdn.steamstatic.com/client/tenfoot_images_all.zip.vz.193cb8c4eb4446698ea2c0a9e8c4e6b6a623dac7_5572671
unknown
binary
5.31 Mb
whitelisted
5944
MoUsoCoreWorker.exe
GET
200
2.16.168.114:80
http://crl.microsoft.com/pki/crl/products/MicRooCerAut2011_2011_03_22.crl
unknown
—
—
whitelisted
—
—
GET
200
151.101.195.52:443
https://cdn.steamstatic.com/client/resources_all.zip.vz.3c8b3203e5c69d75ea0684c2409b86fe4d0d6f83_2856188
unknown
binary
2.72 Mb
whitelisted
—
—
GET
200
151.101.131.52:443
https://cdn.steamstatic.com/client/strings_all.zip.vz.67dc22b628f359d28fd6791a76f4d8a693aa6121_2013193
unknown
binary
1.92 Mb
whitelisted
—
—
GET
200
151.101.3.52:443
https://cdn.steamstatic.com/client/public_all.zip.vz.373630253b13965f5c29efb718b010b31a4422af_23717736
unknown
binary
22.6 Mb
whitelisted
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
192.168.100.255:137
—
—
—
whitelisted
1268
svchost.exe
51.104.136.2:443
settings-win.data.microsoft.com
MICROSOFT-CORP-MSN-AS-BLOCK
IE
whitelisted
5944
MoUsoCoreWorker.exe
51.104.136.2:443
settings-win.data.microsoft.com
MICROSOFT-CORP-MSN-AS-BLOCK
IE
whitelisted
5876
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
2.16.168.114:80
crl.microsoft.com
Akamai International B.V.
RU
whitelisted
5944
MoUsoCoreWorker.exe
2.16.168.114:80
crl.microsoft.com
Akamai International B.V.
RU
whitelisted
1268
svchost.exe
95.101.149.131:80
www.microsoft.com
Akamai International B.V.
NL
whitelisted
5944
MoUsoCoreWorker.exe
95.101.149.131:80
www.microsoft.com
Akamai International B.V.
NL
whitelisted
5876
RUXIMICS.exe
95.101.149.131:80
www.microsoft.com
Akamai International B.V.
NL
whitelisted

DNS requests

Domain
IP
Reputation
settings-win.data.microsoft.com
  • 51.104.136.2
  • 40.127.240.158
whitelisted
google.com
  • 142.250.184.206
whitelisted
crl.microsoft.com
  • 2.16.168.114
  • 2.16.168.124
whitelisted
www.microsoft.com
  • 95.101.149.131
whitelisted
cdn.steamstatic.com
  • 151.101.3.52
  • 151.101.67.52
  • 151.101.131.52
  • 151.101.195.52
whitelisted
activation-v2.sls.microsoft.com
  • 40.91.76.224
whitelisted
x1.c.lencr.org
  • 23.192.153.142
whitelisted
self.events.data.microsoft.com
  • 13.69.239.77
whitelisted

Threats

PID
Process
Class
Message
—
—
Potential Corporate Privacy Violation
ET USER_AGENTS Steam HTTP Client User-Agent
No debug info
Interactive malware hunting service ANY.RUN
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ANY.RUN
Reports
SteamSetup.exe