File name:

ehthumbs.exe

Full analysis: https://app.any.run/tasks/4ba07849-e8c3-4f59-a95e-ca95e61c53b7
Verdict: Malicious activity
Analysis date: March 10, 2025, 22:08:53
OS: Windows 10 Professional (build: 19045, 64 bit)
Indicators:
MIME: application/vnd.microsoft.portable-executable
File info: PE32 executable (GUI) Intel 80386, for MS Windows, 4 sections
MD5:

71BF1C088D26CA4F1DEDAA2532A00E4A

SHA1:

CA760FED00ADCA74E2966BE411192E48F169D43D

SHA256:

1BF5034D736EA742759A54AF7E0BF5016AF023F06321219751C4722AD2142AAA

SSDEEP:

6144:FLpb1w2TB4ItlubnQEjMc+xfj0z2RH5VaiQFa:FLpb1w2t4IPubnQEjaJHTLQFa

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

    • Application launched itself

      • ehthumbs.exe (PID: 5428)
      • ehthumbs.exe (PID: 4980)
      • ehthumbs.exe (PID: 4300)

    • Executes application which crashes

      • ehthumbs.exe (PID: 744)
      • ehthumbs.exe (PID: 5132)
      • ehthumbs.exe (PID: 5056)

    • Probably uses Microsoft diagnostics tool to execute malicious payload

      • pcwrun.exe (PID: 6068)

    • Executable content was dropped or overwritten

      • csc.exe (PID: 6244)
      • csc.exe (PID: 5020)

    • Gets file extension (POWERSHELL)

      • sdiagnhost.exe (PID: 3884)

    • Converts a string into array of characters (POWERSHELL)

      • sdiagnhost.exe (PID: 3884)

    • Uses RUNDLL32.EXE to load library

      • msdt.exe (PID: 5720)

  • INFO

    • Reads the computer name

      • ehthumbs.exe (PID: 5428)
      • ehthumbs.exe (PID: 744)
      • ehthumbs.exe (PID: 4300)
      • ehthumbs.exe (PID: 5056)
      • ehthumbs.exe (PID: 5132)
      • ehthumbs.exe (PID: 4980)

    • Checks supported languages

      • ehthumbs.exe (PID: 5428)
      • ehthumbs.exe (PID: 744)
      • csc.exe (PID: 6876)
      • cvtres.exe (PID: 4152)
      • csc.exe (PID: 6244)
      • cvtres.exe (PID: 4040)
      • csc.exe (PID: 5020)
      • cvtres.exe (PID: 1748)
      • ehthumbs.exe (PID: 4300)
      • ehthumbs.exe (PID: 5132)
      • ehthumbs.exe (PID: 5056)

    • Manual execution by a user

      • pcwrun.exe (PID: 6068)

    • Creates files or folders in the user directory

      • WerFault.exe (PID: 6264)
      • sdiagnhost.exe (PID: 3884)
      • WerFault.exe (PID: 3156)
      • WerFault.exe (PID: 1184)

    • Create files in a temporary directory

      • pcwrun.exe (PID: 6068)
      • sdiagnhost.exe (PID: 3884)
      • msdt.exe (PID: 5720)
      • cvtres.exe (PID: 4152)
      • csc.exe (PID: 6876)
      • csc.exe (PID: 6244)
      • cvtres.exe (PID: 4040)
      • csc.exe (PID: 5020)
      • cvtres.exe (PID: 1748)

    • The sample compiled with english language support

      • msdt.exe (PID: 5720)

    • Reads the software policy settings

      • msdt.exe (PID: 5720)
      • slui.exe (PID: 5376)

    • Reads the machine GUID from the registry

      • csc.exe (PID: 6876)
      • csc.exe (PID: 6244)
      • csc.exe (PID: 5020)

    • Reads security settings of Internet Explorer

      • sdiagnhost.exe (PID: 3884)
      • rundll32.exe (PID: 3968)
      • msdt.exe (PID: 5720)
      • rundll32.exe (PID: 6564)

    • Uses string replace method (POWERSHELL)

      • sdiagnhost.exe (PID: 3884)

    • Checks proxy server information

      • sdiagnhost.exe (PID: 3884)

    • Uses string split method (POWERSHELL)

      • sdiagnhost.exe (PID: 3884)
Find more information about signature artifacts and mapping to MITRE ATT&CK™ MATRIX at the full report
No Malware configuration.

TRiD

.dll | Win32 Dynamic Link Library (generic) (43.5)
.exe | Win32 Executable (generic) (29.8)
.exe | Generic Win/DOS Executable (13.2)
.exe | DOS Executable Generic (13.2)

EXIF

EXE

MachineType: Intel 386 or later, and compatibles
TimeStamp: 2009:09:02 20:16:16+00:00
ImageFileCharacteristics: No relocs, Executable, No line numbers, No symbols, 32-bit
PEType: PE32
LinkerVersion: 6
CodeSize: 12800
InitializedDataSize: 120832
UninitializedDataSize: -
EntryPoint: 0x3f5c
OSVersion: 4
ImageVersion: -
SubsystemVersion: 4
Subsystem: Windows GUI
No data.
screenshotscreenshotscreenshotscreenshotscreenshotscreenshotscreenshotscreenshotscreenshotscreenshotscreenshotscreenshotscreenshotscreenshotscreenshotscreenshotscreenshotscreenshotscreenshotscreenshotscreenshotscreenshotscreenshotscreenshotscreenshotscreenshotscreenshotscreenshotscreenshotscreenshotscreenshotscreenshotscreenshotscreenshotscreenshotscreenshotscreenshotscreenshotscreenshotscreenshot
All screenshots are available in the full report
All screenshots are available in the full report
Total processes
164
Monitored processes
26
Malicious processes
0
Suspicious processes
3

Behavior graph

Click at the process to see the details
start ehthumbs.exe no specs ehthumbs.exe sppextcomobj.exe no specs slui.exe rundll32.exe no specs werfault.exe no specs Shell Security Editor no specs pcwrun.exe no specs msdt.exe no specs sdiagnhost.exe conhost.exe no specs csc.exe no specs cvtres.exe no specs csc.exe cvtres.exe no specs csc.exe cvtres.exe no specs rundll32.exe no specs ehthumbs.exe no specs ehthumbs.exe slui.exe no specs rundll32.exe no specs ehthumbs.exe no specs ehthumbs.exe werfault.exe no specs werfault.exe no specs

Process information

PID
CMD
Path
Indicators
Parent process
668C:\WINDOWS\system32\DllHost.exe /Processid:{4D111E08-CBF7-4F12-A926-2C7920AF52FC}C:\Windows\System32\dllhost.exe—svchost.exe
User:
admin
Company:
Microsoft Corporation
Integrity Level:
HIGH
Description:
COM Surrogate
Exit code:
0
Version:
10.0.19041.3636 (WinBuild.160101.0800)
Modules
Images
c:\windows\system32\dllhost.exe
c:\windows\system32\ntdll.dll
c:\windows\system32\kernel32.dll
c:\windows\system32\kernelbase.dll
c:\windows\system32\ucrtbase.dll
c:\windows\system32\combase.dll
c:\windows\system32\rpcrt4.dll
c:\windows\system32\kernel.appcore.dll
c:\windows\system32\msvcrt.dll
c:\windows\system32\bcryptprimitives.dll
744"C:\Users\admin\AppData\Local\Temp\ehthumbs.exe"C:\Users\admin\AppData\Local\Temp\ehthumbs.exe
ehthumbs.exe
User:
admin
Integrity Level:
MEDIUM
Exit code:
3221225477
Modules
Images
c:\users\admin\appdata\local\temp\ehthumbs.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\advapi32.dll
904\??\C:\WINDOWS\system32\conhost.exe 0xffffffff -ForceV1C:\Windows\System32\conhost.exe—sdiagnhost.exe
User:
admin
Company:
Microsoft Corporation
Integrity Level:
MEDIUM
Description:
Console Window Host
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
1184C:\WINDOWS\SysWOW64\WerFault.exe -u -p 5132 -s 1028C:\Windows\SysWOW64\WerFault.exe—ehthumbs.exe
User:
admin
Company:
Microsoft Corporation
Integrity Level:
MEDIUM
Description:
Windows Problem Reporting
Exit code:
0
Version:
10.0.19041.3996 (WinBuild.160101.0800)
Modules
Images
c:\windows\syswow64\werfault.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\msvcrt.dll
c:\windows\syswow64\combase.dll
1748C:\Windows\Microsoft.NET\Framework64\v4.0.30319\cvtres.exe /NOLOGO /READONLY /MACHINE:IX86 "/OUT:C:\Users\admin\AppData\Local\Temp\RES82AA.tmp" "c:\Users\admin\AppData\Local\Temp\CSC8E5804C0C0FD434DBB2466182EC66581.TMP"C:\Windows\Microsoft.NET\Framework64\v4.0.30319\cvtres.exe—csc.exe
User:
admin
Company:
Microsoft Corporation
Integrity Level:
MEDIUM
Description:
Microsoft® Resource File To COFF Object Conversion Utility
Exit code:
0
Version:
14.32.31326.0
Modules
Images
c:\windows\microsoft.net\framework64\v4.0.30319\cvtres.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\vcruntime140_1_clr0400.dll
3156C:\WINDOWS\SysWOW64\WerFault.exe -u -p 5056 -s 912C:\Windows\SysWOW64\WerFault.exe—ehthumbs.exe
User:
admin
Company:
Microsoft Corporation
Integrity Level:
MEDIUM
Description:
Windows Problem Reporting
Exit code:
0
Version:
10.0.19041.3996 (WinBuild.160101.0800)
Modules
Images
c:\windows\syswow64\werfault.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\msvcrt.dll
c:\windows\syswow64\combase.dll
3884C:\WINDOWS\System32\sdiagnhost.exe -EmbeddingC:\Windows\System32\sdiagnhost.exe
svchost.exe
User:
admin
Company:
Microsoft Corporation
Integrity Level:
MEDIUM
Description:
Scripted Diagnostics Native Host
Version:
10.0.19041.1 (WinBuild.160101.0800)
Modules
Images
c:\windows\system32\sdiagnhost.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\ole32.dll
3968"C:\WINDOWS\system32\rundll32.exe" C:\WINDOWS\system32\pcwutl.dll,LaunchApplication ""C:\Users\admin\AppData\Local\Temp\ehthumbs.exe""C:\Windows\System32\rundll32.exe—msdt.exe
User:
admin
Company:
Microsoft Corporation
Integrity Level:
MEDIUM
Description:
Windows host process (Rundll32)
Exit code:
0
Version:
10.0.19041.1 (WinBuild.160101.0800)
Modules
Images
c:\windows\system32\rundll32.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\shcore.dll
c:\windows\system32\imagehlp.dll
4040C:\Windows\Microsoft.NET\Framework64\v4.0.30319\cvtres.exe /NOLOGO /READONLY /MACHINE:IX86 "/OUT:C:\Users\admin\AppData\Local\Temp\RES7FAC.tmp" "c:\Users\admin\AppData\Local\Temp\CSCFA741DB934F6471E9AABB9B56DA6C523.TMP"C:\Windows\Microsoft.NET\Framework64\v4.0.30319\cvtres.exe—csc.exe
User:
admin
Company:
Microsoft Corporation
Integrity Level:
MEDIUM
Description:
Microsoft® Resource File To COFF Object Conversion Utility
Exit code:
0
Version:
14.32.31326.0
Modules
Images
c:\windows\microsoft.net\framework64\v4.0.30319\cvtres.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\vcruntime140_1_clr0400.dll
4152C:\Windows\Microsoft.NET\Framework64\v4.0.30319\cvtres.exe /NOLOGO /READONLY /MACHINE:IX86 "/OUT:C:\Users\admin\AppData\Local\Temp\RES7F10.tmp" "c:\Users\admin\AppData\Local\Temp\CSC52917144E88340209549F546DD3A7EB.TMP"C:\Windows\Microsoft.NET\Framework64\v4.0.30319\cvtres.exe—csc.exe
User:
admin
Company:
Microsoft Corporation
Integrity Level:
MEDIUM
Description:
Microsoft® Resource File To COFF Object Conversion Utility
Exit code:
0
Version:
14.32.31326.0
Modules
Images
c:\windows\microsoft.net\framework64\v4.0.30319\cvtres.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\vcruntime140_1_clr0400.dll
Total events
15 866
Read events
15 854
Write events
11
Delete events
1

Modification events

(PID) Process:(3884) sdiagnhost.exeKey:HKEY_CURRENT_USER\SOFTWARE\Microsoft\Windows NT\CurrentVersion\AppCompatFlags\Layers
Operation:writeName:C:\Users\admin\AppData\Local\Temp\ehthumbs.exe
Value:
^ VISTASP2
(PID) Process:(3884) sdiagnhost.exeKey:HKEY_CURRENT_USER\SOFTWARE\Microsoft\Windows NT\CurrentVersion\AppCompatFlags\Layers
Operation:delete valueName:C:\Users\admin\AppData\Local\Temp\ehthumbs.exe
Value:
^ VISTASP2
Executable files
5
Suspicious files
19
Text files
21
Unknown types
0

Dropped files

PID
Process
Filename
Type
6264WerFault.exeC:\ProgramData\Microsoft\Windows\WER\ReportQueue\AppCrash_ehthumbs.exe_2667ae54e8412c8a78474cfd8632b31ea97fe38_c731bec8_f5ba0125-9d37-4680-8abc-f3d0fc140d68\Report.wer —
MD5:—
SHA256:—
6264WerFault.exeC:\ProgramData\Microsoft\Windows\WER\Temp\WERF281.tmp.WERInternalMetadata.xmlbinary
MD5:AB28565C43C6A398E4F21B5F57E36CAC
SHA256:BD6BDFA6BFD6E272DE23A61DF0D985C88D07E03D25995B7BB2A7D3CC3CC17045
3884sdiagnhost.exeC:\Users\admin\AppData\Local\Temp\__PSScriptPolicyTest_iqvo5hk1.kjr.ps1text
MD5:D17FE0A3F47BE24A6453E9EF58C94641
SHA256:96AD1146EB96877EAB5942AE0736B82D8B5E2039A80D3D6932665C1A4C87DCF7
3884sdiagnhost.exeC:\Users\admin\AppData\Local\Temp\__PSScriptPolicyTest_uwism3yf.2hc.psm1text
MD5:D17FE0A3F47BE24A6453E9EF58C94641
SHA256:96AD1146EB96877EAB5942AE0736B82D8B5E2039A80D3D6932665C1A4C87DCF7
5720msdt.exeC:\Users\admin\AppData\Local\Temp\SDIAG_f917cd5a-3da3-41da-b55d-41df280ca1c7\en-US\DiagPackage.dll.muiexecutable
MD5:D7309F9B759CCB83B676420B4BDE0182
SHA256:51D06AFFD4DB0E4B37D35D0E85B8209D5FAB741904E8D03DF1A27A0BE102324F
5720msdt.exeC:\Users\admin\AppData\Local\Temp\SDIAG_f917cd5a-3da3-41da-b55d-41df280ca1c7\TS_ProgramCompatibilityWizard.ps1text
MD5:925F0B68B4DE450CABE825365A43A05B
SHA256:5B1BE3F6C280ACFE041735C2E7C9A245E806FD7F1BF6029489698B0376E85025
5720msdt.exeC:\Users\admin\AppData\Local\Temp\SDIAG_f917cd5a-3da3-41da-b55d-41df280ca1c7\en-US\CL_LocalizationData.psd1text
MD5:2C81A148F8E851CE008686F96E5BF911
SHA256:1A2381382671147F56CF137E749CB8A18F176A16793B2266A70154EE27971437
6876csc.exeC:\Users\admin\AppData\Local\Temp\43uhujit.dllexecutable
MD5:7D8DA95E4550703639E27922FE190785
SHA256:8FD93719B92EF30EA29D74A55F92C6E9B79D3DD606FFA70D68E182684CFD338F
5720msdt.exeC:\Users\admin\AppData\Local\Temp\SDIAG_f917cd5a-3da3-41da-b55d-41df280ca1c7\RS_ProgramCompatibilityWizard.ps1text
MD5:E6B5B69A9F0C44BDDA6A5662054CD8BF
SHA256:F7FD69FAA5D66BEDD294BFCBF5962F7A70D60F69D04251F8CF3ACA927D878E3A
6876csc.exeC:\Users\admin\AppData\Local\Temp\CSC52917144E88340209549F546DD3A7EB.TMPbinary
MD5:A0F0FA25FEC12EC5D086BE370A49FC50
SHA256:32CE0F072C8D32F28FF1E76B50C6D07B2500705563FD7892195559214E20C9C3
Download PCAP, analyze network streams, HTTP content and a lot more at the full report
HTTP(S) requests
6
TCP/UDP connections
29
DNS requests
19
Threats
0

HTTP requests

PID
Process
Method
HTTP Code
IP
URL
CN
Type
Size
Reputation
4040
backgroundTaskHost.exe
GET
200
2.23.77.188:80
http://ocsp.digicert.com/MFEwTzBNMEswSTAJBgUrDgMCGgUABBQ50otx%2Fh0Ztl%2Bz8SiPI7wEWVxDlQQUTiJUIBiV5uNu5g%2F6%2BrkS7QYXjzkCEAUZZSZEml49Gjh0j13P68w%3D
unknown
—
—
whitelisted
6544
svchost.exe
GET
200
2.23.77.188:80
http://ocsp.digicert.com/MFEwTzBNMEswSTAJBgUrDgMCGgUABBSAUQYBMq2awn1Rh6Doh%2FsBYgFV7gQUA95QNVbRTLtm8KPiGxvDl7I90VUCEAJ0LqoXyo4hxxe7H%2Fz9DKA%3D
unknown
—
—
whitelisted
3884
sdiagnhost.exe
GET
200
2.19.11.105:80
http://crl.microsoft.com/pki/crl/products/MicRooCerAut2011_2011_03_22.crl
unknown
—
—
whitelisted
3884
sdiagnhost.exe
GET
200
95.101.149.131:80
http://www.microsoft.com/pkiops/crl/MicSecSerCA2011_2011-10-18.crl
unknown
—
—
whitelisted
1012
SIHClient.exe
GET
200
95.101.149.131:80
http://www.microsoft.com/pkiops/crl/Microsoft%20ECC%20Product%20Root%20Certificate%20Authority%202018.crl
unknown
—
—
whitelisted
1012
SIHClient.exe
GET
200
95.101.149.131:80
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
2104
svchost.exe
40.127.240.158:443
settings-win.data.microsoft.com
MICROSOFT-CORP-MSN-AS-BLOCK
IE
whitelisted
4
System
192.168.100.255:137
—
—
—
whitelisted
—
—
40.127.240.158:443
settings-win.data.microsoft.com
MICROSOFT-CORP-MSN-AS-BLOCK
IE
whitelisted
4
System
192.168.100.255:138
—
—
—
whitelisted
6544
svchost.exe
20.190.160.22:443
login.live.com
MICROSOFT-CORP-MSN-AS-BLOCK
NL
whitelisted
6544
svchost.exe
2.23.77.188:80
ocsp.digicert.com
AKAMAI-AS
DE
whitelisted
3216
svchost.exe
40.115.3.253:443
client.wns.windows.com
MICROSOFT-CORP-MSN-AS-BLOCK
NL
whitelisted
2112
svchost.exe
4.231.128.59:443
settings-win.data.microsoft.com
MICROSOFT-CORP-MSN-AS-BLOCK
IE
whitelisted
4040
backgroundTaskHost.exe
20.31.169.57:443
arc.msn.com
MICROSOFT-CORP-MSN-AS-BLOCK
NL
whitelisted
4040
backgroundTaskHost.exe
2.23.77.188:80
ocsp.digicert.com
AKAMAI-AS
DE
whitelisted

DNS requests

Domain
IP
Reputation
settings-win.data.microsoft.com
  • 40.127.240.158
  • 4.231.128.59
whitelisted
google.com
  • 142.250.185.142
whitelisted
login.live.com
  • 20.190.160.22
  • 40.126.32.133
  • 20.190.160.66
  • 40.126.32.138
  • 20.190.160.3
  • 40.126.32.72
  • 20.190.160.4
  • 20.190.160.5
whitelisted
ocsp.digicert.com
  • 2.23.77.188
whitelisted
client.wns.windows.com
  • 40.115.3.253
whitelisted
arc.msn.com
  • 20.31.169.57
whitelisted
slscr.update.microsoft.com
  • 20.12.23.50
whitelisted
www.microsoft.com
  • 95.101.149.131
whitelisted
fe3cr.delivery.mp.microsoft.com
  • 13.95.31.18
whitelisted
crl.microsoft.com
  • 2.19.11.105
  • 2.19.11.120
whitelisted

Threats

No threats detected
No debug info
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Reports
ehthumbs.exe