File name:

FileCoAuth.exe

Full analysis: https://app.any.run/tasks/24692c04-a73c-4e0b-a2e4-a1e60495ad21
Verdict: Malicious activity
Analysis date: December 10, 2024, 17:42:15
OS: Windows 10 Professional (build: 19045, 64 bit)
Indicators:
MIME: application/vnd.microsoft.portable-executable
File info: PE32 executable (console) Intel 80386 Mono/.Net assembly, for MS Windows, 3 sections
MD5:

43B57C828B95F666F4C98D96322E6893

SHA1:

E85030F0BD45D3034144FF6F4E037D8F5C45665E

SHA256:

83D4F96B6826181E8FF628E69B3E2D37C7E1B827C3FF255B99C7E1436971934E

SSDEEP:

12288:Lap/viMsZ2B/mQd7QUzHVOARJANT9Owlm:Lap/viMsZ2Z7QULfRJANT9Owlm

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

    • Executing a file with an untrusted certificate

      • FileCoAuth.exe (PID: 5040)

  • SUSPICIOUS

    • Process drops legitimate windows executable

      • FileCoAuth.exe (PID: 5040)

    • Starts a Microsoft application from unusual location

      • FileCoAuth.exe (PID: 5040)

  • INFO

    • The sample compiled with english language support

      • FileCoAuth.exe (PID: 5040)

    • Reads the computer name

      • FileCoAuth.exe (PID: 5040)

    • Reads the machine GUID from the registry

      • FileCoAuth.exe (PID: 5040)

    • Checks supported languages

      • FileCoAuth.exe (PID: 5040)
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) (49.4)
.scr | Windows screen saver (23.4)
.dll | Win32 Dynamic Link Library (generic) (11.7)
.exe | Win32 Executable (generic) (8)
.exe | Generic Win/DOS Executable (3.5)

EXIF

EXE

MachineType: Intel 386 or later, and compatibles
TimeStamp: 2022:06:24 22:28:26+00:00
ImageFileCharacteristics: Executable, 32-bit
PEType: PE32
LinkerVersion: 48
CodeSize: 21504
InitializedDataSize: 3072
UninitializedDataSize: -
EntryPoint: 0x727a
OSVersion: 4
ImageVersion: -
SubsystemVersion: 6
Subsystem: Windows command line
FileVersionNumber: 4.8.9037.0
ProductVersionNumber: 4.0.30319.0
FileFlagsMask: 0x003f
FileFlags: Private build
FileOS: Win32
ObjectFileType: Executable application
FileSubtype: -
LanguageCode: English (U.S.)
CharacterSet: Unicode
CompanyName: Microsoft Corporation
FileDescription: .NET Framework installation utility
FileVersion: 4.8.9037.0 built by: NET481REL1
InternalName: InstallUtil.exe
LegalCopyright: © Microsoft Corporation. All rights reserved.
OriginalFileName: InstallUtil.exe
ProductName: Microsoft® .NET Framework
ProductVersion: 4.8.9037.0
Comments: Flavor=Retail
PrivateBuild: DDBLD299C
No data.
screenshotscreenshotscreenshot
All screenshots are available in the full report
All screenshots are available in the full report
Total processes
130
Monitored processes
2
Malicious processes
0
Suspicious processes
1

Behavior graph

Click at the process to see the details
start filecoauth.exe no specs conhost.exe no specs

Process information

PID
CMD
Path
Indicators
Parent process
4384\??\C:\WINDOWS\system32\conhost.exe 0xffffffff -ForceV1C:\Windows\System32\conhost.exe—FileCoAuth.exe
User:
admin
Company:
Microsoft Corporation
Integrity Level:
MEDIUM
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
5040"C:\Users\admin\AppData\Local\Temp\FileCoAuth.exe" C:\Users\admin\AppData\Local\Temp\FileCoAuth.exe—explorer.exe
User:
admin
Company:
Microsoft Corporation
Integrity Level:
MEDIUM
Description:
.NET Framework installation utility
Exit code:
4294967295
Version:
4.8.9037.0 built by: NET481REL1
Modules
Images
c:\users\admin\appdata\local\temp\filecoauth.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\mscoree.dll
c:\windows\syswow64\kernel32.dll
c:\windows\syswow64\kernelbase.dll
c:\windows\syswow64\apphelp.dll
Total events
84
Read events
84
Write events
0
Delete events
0

Modification events

No data
Executable files
0
Suspicious files
0
Text files
0
Unknown types
0

Dropped files

No data
Download PCAP, analyze network streams, HTTP content and a lot more at the full report
HTTP(S) requests
7
TCP/UDP connections
32
DNS requests
16
Threats
0

HTTP requests

PID
Process
Method
HTTP Code
IP
URL
CN
Type
Size
Reputation
4712
MoUsoCoreWorker.exe
GET
200
23.48.23.143:80
http://crl.microsoft.com/pki/crl/products/MicRooCerAut2011_2011_03_22.crl
unknown
—
—
whitelisted
5064
SearchApp.exe
GET
200
192.229.221.95:80
http://ocsp.digicert.com/MFEwTzBNMEswSTAJBgUrDgMCGgUABBTrjrydRyt%2BApF3GSPypfHBxR5XtQQUs9tIpPmhxdiuNkHMEWNpYim8S8YCEAI5PUjXAkJafLQcAAsO18o%3D
unknown
—
—
whitelisted
1176
svchost.exe
GET
200
192.229.221.95:80
http://ocsp.digicert.com/MFEwTzBNMEswSTAJBgUrDgMCGgUABBSAUQYBMq2awn1Rh6Doh%2FsBYgFV7gQUA95QNVbRTLtm8KPiGxvDl7I90VUCEAJ0LqoXyo4hxxe7H%2Fz9DKA%3D
unknown
—
—
whitelisted
4712
MoUsoCoreWorker.exe
GET
200
23.37.237.227:80
http://www.microsoft.com/pkiops/crl/MicSecSerCA2011_2011-10-18.crl
unknown
—
—
whitelisted
6152
backgroundTaskHost.exe
GET
200
192.229.221.95:80
http://ocsp.digicert.com/MFEwTzBNMEswSTAJBgUrDgMCGgUABBQ50otx%2Fh0Ztl%2Bz8SiPI7wEWVxDlQQUTiJUIBiV5uNu5g%2F6%2BrkS7QYXjzkCEAn5bsKVVV8kdJ6vHl3O1J0%3D
unknown
—
—
whitelisted
7012
SIHClient.exe
GET
200
23.37.237.227:80
http://www.microsoft.com/pkiops/crl/Microsoft%20ECC%20Product%20Root%20Certificate%20Authority%202018.crl
unknown
—
—
whitelisted
7012
SIHClient.exe
GET
200
23.37.237.227:80
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
4
System
192.168.100.255:137
—
—
—
whitelisted
1476
RUXIMICS.exe
51.124.78.146:443
—
MICROSOFT-CORP-MSN-AS-BLOCK
NL
whitelisted
—
—
51.124.78.146:443
—
MICROSOFT-CORP-MSN-AS-BLOCK
NL
whitelisted
4712
MoUsoCoreWorker.exe
23.48.23.143:80
crl.microsoft.com
Akamai International B.V.
DE
whitelisted
4712
MoUsoCoreWorker.exe
23.37.237.227:80
www.microsoft.com
AKAMAI-AS
DE
whitelisted
3040
svchost.exe
51.124.78.146:443
—
MICROSOFT-CORP-MSN-AS-BLOCK
NL
whitelisted
4
System
192.168.100.255:138
—
—
—
whitelisted
5064
SearchApp.exe
2.16.204.152:443
www.bing.com
Akamai International B.V.
DE
whitelisted
1176
svchost.exe
20.190.159.64:443
login.live.com
MICROSOFT-CORP-MSN-AS-BLOCK
IE
whitelisted
1176
svchost.exe
192.229.221.95:80
ocsp.digicert.com
EDGECAST
US
whitelisted

DNS requests

Domain
IP
Reputation
crl.microsoft.com
  • 23.48.23.143
whitelisted
www.microsoft.com
  • 23.37.237.227
whitelisted
google.com
  • 216.58.212.174
whitelisted
www.bing.com
  • 2.16.204.152
  • 2.16.204.146
  • 2.16.204.160
  • 2.16.204.161
  • 2.16.204.157
  • 2.16.204.134
  • 2.16.204.148
  • 2.16.204.150
  • 2.16.204.155
whitelisted
login.live.com
  • 20.190.159.64
  • 20.190.159.71
  • 40.126.31.67
  • 40.126.31.71
  • 20.190.159.68
  • 20.190.159.4
  • 20.190.159.0
  • 40.126.31.73
whitelisted
ocsp.digicert.com
  • 192.229.221.95
whitelisted
go.microsoft.com
  • 23.218.210.69
whitelisted
settings-win.data.microsoft.com
  • 51.104.136.2
whitelisted
arc.msn.com
  • 20.223.35.26
whitelisted
fd.api.iris.microsoft.com
  • 20.31.169.57
whitelisted

Threats

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