File name:

SteamSetup.exe

Full analysis: https://app.any.run/tasks/e0efe970-2a5c-42f5-b398-6e3a7b69d723
Verdict: Malicious activity
Analysis date: September 01, 2024, 21:37:52
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

    • Changes the autorun value in the registry

      • SteamSetup.exe (PID: 5708)

  • SUSPICIOUS

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

      • SteamSetup.exe (PID: 5708)

    • Drops the executable file immediately after the start

      • SteamSetup.exe (PID: 5708)
      • SteamService.exe (PID: 5164)

    • Executable content was dropped or overwritten

      • SteamSetup.exe (PID: 5708)
      • SteamService.exe (PID: 5164)

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

      • SteamSetup.exe (PID: 5708)

    • Creates a software uninstall entry

      • SteamSetup.exe (PID: 5708)

  • INFO

    • Checks supported languages

      • SteamSetup.exe (PID: 5708)
      • SteamService.exe (PID: 5164)
      • Steam.exe (PID: 4704)

    • Reads the computer name

      • SteamSetup.exe (PID: 5708)
      • SteamService.exe (PID: 5164)
      • Steam.exe (PID: 4704)

    • Creates files in the program directory

      • SteamSetup.exe (PID: 5708)
      • SteamService.exe (PID: 5164)
      • Steam.exe (PID: 4704)

    • Create files in a temporary directory

      • SteamSetup.exe (PID: 5708)

    • Manual execution by a user

      • Steam.exe (PID: 4704)

    • Checks proxy server information

      • Steam.exe (PID: 4704)

    • Reads the software policy settings

      • Steam.exe (PID: 4704)

    • Creates files or folders in the user directory

      • Steam.exe (PID: 4704)

    • Reads CPU info

      • Steam.exe (PID: 4704)

    • Reads the machine GUID from the registry

      • Steam.exe (PID: 4704)
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.
screenshotscreenshotscreenshotscreenshotscreenshotscreenshotscreenshotscreenshot
All screenshots are available in the full report
All screenshots are available in the full report
Total processes
132
Monitored processes
5
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 steamsetup.exe no specs

Process information

PID
CMD
Path
Indicators
Parent process
4284"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
4704"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:
4294967294
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
5096\??\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
5164"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
5708"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
Total events
7 090
Read events
7 058
Write events
30
Delete events
2

Modification events

(PID) Process:(5708) SteamSetup.exeKey:HKEY_CURRENT_USER\SOFTWARE\Valve\Steam
Operation:writeName:Language
Value:
english
(PID) Process:(5708) SteamSetup.exeKey:HKEY_LOCAL_MACHINE\SOFTWARE\WOW6432Node\Valve\Steam
Operation:writeName:Language
Value:
english
(PID) Process:(5708) SteamSetup.exeKey:HKEY_CURRENT_USER\SOFTWARE\Microsoft\Windows\CurrentVersion\Run
Operation:writeName:Steam
Value:
"C:\Program Files (x86)\Steam\steam.exe" -silent
(PID) Process:(5708) SteamSetup.exeKey:HKEY_CURRENT_USER\SOFTWARE\Valve\Steam
Operation:writeName:SteamInstaller
Value:
SteamSetup.exe
(PID) Process:(5164) SteamService.exeKey:HKEY_LOCAL_MACHINE\SOFTWARE\WOW6432Node\Valve\SteamService
Operation:writeName:installpath_default
Value:
C:\Program Files (x86)\Steam
(PID) Process:(5164) SteamService.exeKey:HKEY_LOCAL_MACHINE\SOFTWARE\WOW6432Node\Valve\Steam
Operation:writeName:InstallPath
Value:
C:\Program Files (x86)\Steam
(PID) Process:(5164) SteamService.exeKey:HKEY_LOCAL_MACHINE\SOFTWARE\Classes\steam
Operation:writeName:URL Protocol
Value:
(PID) Process:(5164) SteamService.exeKey:HKEY_LOCAL_MACHINE\SOFTWARE\Classes\steamlink
Operation:writeName:URL Protocol
Value:
(PID) Process:(5164) SteamService.exeKey:HKEY_CLASSES_ROOT\steam
Operation:writeName:URL Protocol
Value:
(PID) Process:(5164) SteamService.exeKey:HKEY_CLASSES_ROOT\steamlink
Operation:writeName:URL Protocol
Value:
Executable files
9
Suspicious files
12
Text files
34
Unknown types
0

Dropped files

PID
Process
Filename
Type
5708SteamSetup.exeC:\Users\admin\AppData\Local\Temp\nsiA032.tmp\modern-wizard.bmpimage
MD5:3614A4BE6B610F1DAF6C801574F161FE
SHA256:16E0EDC9F47E6E95A9BCAD15ADBDC46BE774FBCD045DD526FC16FC38FDC8D49B
5708SteamSetup.exeC:\Program Files (x86)\Steam\Steam.exeexecutable
MD5:33BCB1C8975A4063A134A72803E0CA16
SHA256:12222B0908EB69581985F7E04AA6240E928FB08AA5A3EC36ACAE3440633C9EB1
5708SteamSetup.exeC:\Users\admin\AppData\Local\Temp\nsiA032.tmp\modern-header.bmpimage
MD5:DA3486D12BB4C8AEC16BD9E0D363D23F
SHA256:D93B76D51BD2214FA6E999C1BF70B4AFF5165A6542F9B9B2A92B5672601F4624
5708SteamSetup.exeC:\Program Files (x86)\Steam\public\steambootstrapper_dutch.txttext
MD5:31A29061E51E245F74BB26D103C666AD
SHA256:56C8A86FA95EAB0D8F34F498E079B5516B96D2A2F1AD9C2A888555E50E47F192
5708SteamSetup.exeC:\Program Files (x86)\Steam\public\steambootstrapper_finnish.txttext
MD5:9E62FC923C65BFC3F40AAF6EC4FD1010
SHA256:8FF0F3CBDF28102FF037B9CDA90590E4B66E1E654B90F9AEA2CD5364494D02B7
5708SteamSetup.exeC:\Program Files (x86)\Steam\public\steambootstrapper_hungarian.txttext
MD5:18AAAF5FFCDD21B1B34291E812D83063
SHA256:1F45BB7BDFA01424F9237EEC60EBA35DC7F0DC4E8C2E193FE768FE96D3FF76D5
5708SteamSetup.exeC:\Program Files (x86)\Steam\public\steambootstrapper_german.txttext
MD5:5C026FD6072A7C5CF31C75818CDDEDEC
SHA256:0828572E4FA00C186DBF1D9072A6154D65CB499C6A37E338F3305F77A2FEE382
5708SteamSetup.exeC:\Program Files (x86)\Steam\public\steambootstrapper_english.txttext
MD5:DA6CD2483AD8A21E8356E63D036DF55B
SHA256:EBECECD3F691AC20E5B73E5C81861A01531203DF3CF2BAA9E1B6D004733A42A6
5708SteamSetup.exeC:\Program Files (x86)\Steam\public\steambootstrapper_italian.txttext
MD5:8958371646901EAC40807EEB2F346382
SHA256:B01EC64D75FD1FBD00FBEB45A3FB39244911A8B22BB43DE4E0C03F205184F585
5708SteamSetup.exeC:\Program Files (x86)\Steam\public\steambootstrapper_indonesian.txttext
MD5:1514D082B672B372CDFB8DD85C3437F1
SHA256:3B3C5C615FD82070CC951AB482D3DE8CB12DF0B3DF59FBD11F9D3271FA2FBCA4
Download PCAP, analyze network streams, HTTP content and a lot more at the full report
HTTP(S) requests
4
TCP/UDP connections
31
DNS requests
16
Threats
0

HTTP requests

PID
Process
Method
HTTP Code
IP
URL
CN
Type
Size
Reputation
4704
Steam.exe
GET
200
95.101.54.114:80
http://r10.o.lencr.org/MFMwUTBPME0wSzAJBgUrDgMCGgUABBRpD%2BQVZ%2B1vf7U0RGQGBm8JZwdxcgQUdKR2KRcYVIUxN75n5gZYwLzFBXICEgMMgkMfRiTYD1wLy7mwdkOzvg%3D%3D
unknown
—
—
whitelisted
2036
svchost.exe
GET
200
192.229.221.95:80
http://ocsp.digicert.com/MFEwTzBNMEswSTAJBgUrDgMCGgUABBSAUQYBMq2awn1Rh6Doh%2FsBYgFV7gQUA95QNVbRTLtm8KPiGxvDl7I90VUCEAJ0LqoXyo4hxxe7H%2Fz9DKA%3D
unknown
—
—
whitelisted
6196
SIHClient.exe
GET
200
88.221.169.152:80
http://www.microsoft.com/pkiops/crl/Microsoft%20ECC%20Product%20Root%20Certificate%20Authority%202018.crl
unknown
—
—
whitelisted
6196
SIHClient.exe
GET
200
88.221.169.152:80
http://www.microsoft.com/pkiops/crl/Microsoft%20ECC%20Update%20Secure%20Server%20CA%202.1.crl
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
448
RUXIMICS.exe
4.231.128.59:443
settings-win.data.microsoft.com
MICROSOFT-CORP-MSN-AS-BLOCK
IE
whitelisted
4
System
192.168.100.255:138
—
—
—
whitelisted
2120
MoUsoCoreWorker.exe
4.231.128.59:443
settings-win.data.microsoft.com
MICROSOFT-CORP-MSN-AS-BLOCK
IE
whitelisted
—
—
4.231.128.59:443
settings-win.data.microsoft.com
MICROSOFT-CORP-MSN-AS-BLOCK
IE
whitelisted
3260
svchost.exe
40.113.110.67:443
client.wns.windows.com
MICROSOFT-CORP-MSN-AS-BLOCK
NL
whitelisted
4704
Steam.exe
95.101.54.208:443
cdn.steamstatic.com
Akamai International B.V.
DE
whitelisted
4704
Steam.exe
95.101.54.114:80
r10.o.lencr.org
Akamai International B.V.
DE
whitelisted
2120
MoUsoCoreWorker.exe
20.73.194.208:443
settings-win.data.microsoft.com
MICROSOFT-CORP-MSN-AS-BLOCK
NL
whitelisted
2036
svchost.exe
40.126.32.68:443
login.live.com
MICROSOFT-CORP-MSN-AS-BLOCK
NL
whitelisted
2036
svchost.exe
192.229.221.95:80
ocsp.digicert.com
EDGECAST
US
whitelisted

DNS requests

Domain
IP
Reputation
settings-win.data.microsoft.com
  • 4.231.128.59
  • 20.73.194.208
  • 40.127.240.158
  • 51.124.78.146
whitelisted
google.com
  • 142.250.184.238
whitelisted
client.wns.windows.com
  • 40.113.110.67
whitelisted
cdn.steamstatic.com
  • 95.101.54.208
  • 95.101.54.138
whitelisted
r10.o.lencr.org
  • 95.101.54.114
  • 2.16.202.121
  • 95.101.54.107
whitelisted
login.live.com
  • 40.126.32.68
  • 40.126.32.72
  • 40.126.32.76
  • 40.126.32.133
  • 40.126.32.138
  • 20.190.160.14
  • 40.126.32.74
  • 20.190.160.20
whitelisted
ocsp.digicert.com
  • 192.229.221.95
whitelisted
slscr.update.microsoft.com
  • 20.12.23.50
whitelisted
www.microsoft.com
  • 88.221.169.152
whitelisted
fe3cr.delivery.mp.microsoft.com
  • 20.3.187.198
whitelisted

Threats

No threats detected
No debug info
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Reports
SteamSetup.exe