File name:

SteamSetup.exe

Full analysis: https://app.any.run/tasks/15cb2ff0-ef2e-4c8c-a1cf-5faa6d0b3f57
Verdict: Malicious activity
Analysis date: July 24, 2024, 19:02:16
OS: Windows 10 Professional (build: 19045, 64 bit)
Indicators:
MIME: application/x-dosexec
File info: PE32 executable (GUI) Intel 80386, for MS Windows, Nullsoft Installer self-extracting archive
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

    • Drops the executable file immediately after the start

      • SteamSetup.exe (PID: 504)
      • SteamService.exe (PID: 256)

    • Changes the autorun value in the registry

      • SteamSetup.exe (PID: 504)

  • SUSPICIOUS

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

      • SteamSetup.exe (PID: 504)

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

      • SteamSetup.exe (PID: 504)

    • Executable content was dropped or overwritten

      • SteamSetup.exe (PID: 504)
      • SteamService.exe (PID: 256)

    • Creates a software uninstall entry

      • SteamSetup.exe (PID: 504)

  • INFO

    • Create files in a temporary directory

      • SteamSetup.exe (PID: 504)

    • Checks supported languages

      • SteamSetup.exe (PID: 504)
      • SteamService.exe (PID: 256)
      • Steam.exe (PID: 6568)

    • Reads the computer name

      • SteamSetup.exe (PID: 504)
      • SteamService.exe (PID: 256)
      • Steam.exe (PID: 6568)

    • Creates files in the program directory

      • SteamSetup.exe (PID: 504)
      • SteamService.exe (PID: 256)
      • Steam.exe (PID: 6568)

    • Manual execution by a user

      • Steam.exe (PID: 6568)

    • Checks proxy server information

      • Steam.exe (PID: 6568)
      • slui.exe (PID: 5668)

    • Reads the software policy settings

      • Steam.exe (PID: 6568)
      • slui.exe (PID: 5668)

    • Creates files or folders in the user directory

      • Steam.exe (PID: 6568)

    • Reads CPU info

      • Steam.exe (PID: 6568)

    • Reads the machine GUID from the registry

      • Steam.exe (PID: 6568)
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.
screenshotscreenshotscreenshotscreenshotscreenshotscreenshotscreenshot
All screenshots are available in the full report
All screenshots are available in the full report
Total processes
141
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 slui.exe no specs slui.exe steamsetup.exe no specs

Process information

PID
CMD
Path
Indicators
Parent process
256"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
504"C:\Users\admin\AppData\Local\Temp\SteamSetup.exe" C:\Users\admin\AppData\Local\Temp\SteamSetup.exe
explorer.exe
User:
admin
Integrity Level:
HIGH
Description:
Steam
Exit code:
0
Version:
2.10.91.91
Modules
Images
c:\users\admin\appdata\local\temp\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
4176"C:\Users\admin\AppData\Local\Temp\SteamSetup.exe" C:\Users\admin\AppData\Local\Temp\SteamSetup.exe—explorer.exe
User:
admin
Integrity Level:
MEDIUM
Description:
Steam
Exit code:
3221226540
Version:
2.10.91.91
Modules
Images
c:\users\admin\appdata\local\temp\steamsetup.exe
c:\windows\system32\ntdll.dll
c:\windows\syswow64\ntdll.dll
4336\??\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
5668C:\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
6568"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
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
6596C:\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
Total events
7 860
Read events
7 829
Write events
29
Delete events
2

Modification events

(PID) Process:(504) SteamSetup.exeKey:HKEY_CURRENT_USER\SOFTWARE\Valve\Steam
Operation:writeName:Language
Value:
english
(PID) Process:(504) SteamSetup.exeKey:HKEY_LOCAL_MACHINE\SOFTWARE\WOW6432Node\Valve\Steam
Operation:writeName:Language
Value:
english
(PID) Process:(504) SteamSetup.exeKey:HKEY_CURRENT_USER\SOFTWARE\Microsoft\Windows\CurrentVersion\Run
Operation:writeName:Steam
Value:
"C:\Program Files (x86)\Steam\steam.exe" -silent
(PID) Process:(504) SteamSetup.exeKey:HKEY_CURRENT_USER\SOFTWARE\Valve\Steam
Operation:writeName:SteamInstaller
Value:
SteamSetup.exe
(PID) Process:(256) SteamService.exeKey:HKEY_LOCAL_MACHINE\SOFTWARE\WOW6432Node\Valve\SteamService
Operation:writeName:installpath_default
Value:
C:\Program Files (x86)\Steam
(PID) Process:(256) SteamService.exeKey:HKEY_LOCAL_MACHINE\SOFTWARE\WOW6432Node\Valve\Steam
Operation:writeName:InstallPath
Value:
C:\Program Files (x86)\Steam
(PID) Process:(256) SteamService.exeKey:HKEY_LOCAL_MACHINE\SOFTWARE\Classes\steam
Operation:writeName:URL Protocol
Value:
(PID) Process:(256) SteamService.exeKey:HKEY_LOCAL_MACHINE\SOFTWARE\Classes\steamlink
Operation:writeName:URL Protocol
Value:
(PID) Process:(256) SteamService.exeKey:HKEY_CLASSES_ROOT\steam
Operation:writeName:URL Protocol
Value:
(PID) Process:(256) SteamService.exeKey:HKEY_CLASSES_ROOT\steamlink
Operation:writeName:URL Protocol
Value:
Executable files
9
Suspicious files
11
Text files
32
Unknown types
1

Dropped files

PID
Process
Filename
Type
504SteamSetup.exeC:\Program Files (x86)\Steam\public\steambootstrapper_czech.txttext
MD5:2158881817B9163BF0FD4724D549AED4
SHA256:650A265DFFDC5DC50200BB82D56F416A3A423EECC08C962CFD1BA2D40A1FF3F7
504SteamSetup.exeC:\Program Files (x86)\Steam\public\steambootstrapper_brazilian.txttext
MD5:0340D1A0BBDB8F3017D2326F4E351E0A
SHA256:0FCD7AE491B467858F2A8745C5ECDD55451399778C2119517EE686D1F264B544
504SteamSetup.exeC:\Program Files (x86)\Steam\public\steambootstrapper_french.txttext
MD5:10C429EB58B4274AF6B6EF08F376D46C
SHA256:A1F6BA57EE41E009D904905C0CE5E75A59EE6790E08542561303109E1FAAFA13
504SteamSetup.exeC:\Users\admin\AppData\Local\Temp\nsg18A6.tmp\modern-header.bmpimage
MD5:DA3486D12BB4C8AEC16BD9E0D363D23F
SHA256:D93B76D51BD2214FA6E999C1BF70B4AFF5165A6542F9B9B2A92B5672601F4624
504SteamSetup.exeC:\Program Files (x86)\Steam\public\steambootstrapper_danish.txttext
MD5:03B664BD98485425C21CDF83BC358703
SHA256:FDF7B42B3B027A12E1B79CB10AB9E6E34C668B04EB9E8A907D8611BA46473115
504SteamSetup.exeC:\Users\admin\AppData\Local\Temp\nsg18A6.tmp\nsDialogs.dllexecutable
MD5:4E5BC4458AFA770636F2806EE0A1E999
SHA256:91A484DC79BE64DD11BF5ACB62C893E57505FCD8809483AA92B04F10D81F9DE0
504SteamSetup.exeC:\Program Files (x86)\Steam\public\steambootstrapper_dutch.txttext
MD5:31A29061E51E245F74BB26D103C666AD
SHA256:56C8A86FA95EAB0D8F34F498E079B5516B96D2A2F1AD9C2A888555E50E47F192
504SteamSetup.exeC:\Program Files (x86)\Steam\public\steambootstrapper_german.txttext
MD5:5C026FD6072A7C5CF31C75818CDDEDEC
SHA256:0828572E4FA00C186DBF1D9072A6154D65CB499C6A37E338F3305F77A2FEE382
504SteamSetup.exeC:\Program Files (x86)\Steam\public\steambootstrapper_hungarian.txttext
MD5:18AAAF5FFCDD21B1B34291E812D83063
SHA256:1F45BB7BDFA01424F9237EEC60EBA35DC7F0DC4E8C2E193FE768FE96D3FF76D5
504SteamSetup.exeC:\Program Files (x86)\Steam\public\steambootstrapper_greek.txttext
MD5:189BA063D1481528CBD6E0C4AFC3ABAA
SHA256:C0A7A1DF442AC080668762DF795C72AA322E9D415C41BD0A4C676A4DC0551695
Download PCAP, analyze network streams, HTTP content and a lot more at the full report
HTTP(S) requests
4
TCP/UDP connections
48
DNS requests
19
Threats
0

HTTP requests

PID
Process
Method
HTTP Code
IP
URL
CN
Type
Size
Reputation
5272
svchost.exe
GET
200
192.229.221.95:80
http://ocsp.digicert.com/MFEwTzBNMEswSTAJBgUrDgMCGgUABBSAUQYBMq2awn1Rh6Doh%2FsBYgFV7gQUA95QNVbRTLtm8KPiGxvDl7I90VUCEAJ0LqoXyo4hxxe7H%2Fz9DKA%3D
unknown
—
—
whitelisted
6568
Steam.exe
GET
200
95.101.54.139:80
http://r11.o.lencr.org/MFMwUTBPME0wSzAJBgUrDgMCGgUABBQaUrm0WeTDM5ghfoZtS72KO9ZnzgQUCLkRO6XQhRi06g%2BgrZ%2BGHo78OCcCEgS7Tvyktds%2BiLclC0nnQdHBKA%3D%3D
unknown
—
—
whitelisted
4360
backgroundTaskHost.exe
GET
200
192.229.221.95:80
http://ocsp.digicert.com/MFEwTzBNMEswSTAJBgUrDgMCGgUABBQ50otx%2Fh0Ztl%2Bz8SiPI7wEWVxDlQQUTiJUIBiV5uNu5g%2F6%2BrkS7QYXjzkCEAn5bsKVVV8kdJ6vHl3O1J0%3D
unknown
—
—
whitelisted
3908
backgroundTaskHost.exe
GET
200
192.229.221.95:80
http://ocsp.digicert.com/MFEwTzBNMEswSTAJBgUrDgMCGgUABBQ50otx%2Fh0Ztl%2Bz8SiPI7wEWVxDlQQUTiJUIBiV5uNu5g%2F6%2BrkS7QYXjzkCEAn5bsKVVV8kdJ6vHl3O1J0%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
4
System
192.168.100.255:138
—
—
—
whitelisted
6012
MoUsoCoreWorker.exe
20.73.194.208:443
settings-win.data.microsoft.com
MICROSOFT-CORP-MSN-AS-BLOCK
NL
whitelisted
3056
RUXIMICS.exe
20.73.194.208:443
settings-win.data.microsoft.com
MICROSOFT-CORP-MSN-AS-BLOCK
NL
whitelisted
4516
svchost.exe
20.73.194.208:443
settings-win.data.microsoft.com
MICROSOFT-CORP-MSN-AS-BLOCK
NL
whitelisted
—
—
184.86.251.26:443
—
Akamai International B.V.
DE
unknown
3952
svchost.exe
239.255.255.250:1900
—
—
—
whitelisted
4204
svchost.exe
4.209.32.67:443
—
MICROSOFT-CORP-MSN-AS-BLOCK
US
unknown
4
System
192.168.100.255:137
—
—
—
whitelisted
4516
svchost.exe
40.127.240.158:443
settings-win.data.microsoft.com
MICROSOFT-CORP-MSN-AS-BLOCK
IE
unknown
6568
Steam.exe
2.16.202.96:443
cdn.steamstatic.com
Akamai International B.V.
NL
unknown

DNS requests

Domain
IP
Reputation
settings-win.data.microsoft.com
  • 20.73.194.208
  • 40.127.240.158
whitelisted
google.com
  • 142.250.185.78
whitelisted
cdn.steamstatic.com
  • 2.16.202.96
  • 2.16.202.65
  • 2.16.202.67
whitelisted
r11.o.lencr.org
  • 95.101.54.139
  • 2.16.202.128
  • 95.101.54.145
  • 95.101.54.115
  • 2.16.202.115
  • 2.16.202.112
  • 2.16.202.123
  • 95.101.54.112
whitelisted
activation-v2.sls.microsoft.com
  • 20.83.72.98
whitelisted
login.live.com
  • 40.126.32.76
  • 40.126.32.72
  • 20.190.160.14
  • 20.190.160.22
  • 40.126.32.68
  • 40.126.32.136
  • 40.126.32.74
  • 40.126.32.140
whitelisted
ocsp.digicert.com
  • 192.229.221.95
whitelisted
www.bing.com
  • 184.86.251.28
  • 184.86.251.25
  • 184.86.251.27
  • 184.86.251.24
  • 184.86.251.31
  • 184.86.251.30
  • 184.86.251.15
  • 184.86.251.18
  • 184.86.251.16
whitelisted
client.wns.windows.com
  • 40.115.3.253
whitelisted
arc.msn.com
  • 20.31.169.57
whitelisted

Threats

No threats detected
No debug info
Interactive malware hunting service ANY.RUN
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Reports
SteamSetup.exe