Malware analysis FileZilla_3.68.1_win64-setup.exe Malicious activity

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File name:	FileZilla_3.68.1_win64-setup.exe
Full analysis:	https://app.any.run/tasks/566e488e-911f-44e1-ba21-30ff4eb95f5b
Verdict:	Malicious activity
Analysis date:	May 10, 2025, 03:46:22
OS:	Windows 10 Professional (build: 19044, 64 bit)
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:	DEEADC6F907DA391D6A3B8DB202CA703
SHA1:	83DAA87D196208FB6DED2A4F31A862FA86061E18
SHA256:	1FEB6C12F584E98F9FDDF95BF128F549310C738376FAB82A5893EAFED765AD83
SSDEEP:	98304:TbszW6LZZCZC7WAqexU3pSRMIHYHZKXIRN6HPdVNOAh8i9I1L7hTBR/g5shbNtti:vhr+W7VVYtZB3t7ANXOA

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.

Launch configuration

Task duration:: 60 seconds
Heavy Evasion option:: off
Network geolocation:: off
Additional time used:: none
MITM proxy:: off
Privacy:: Public submission
Fakenet option:: off
Route via Tor:: off
Autoconfirmation of UAC:: on
Network:: on

Software preset

Internet Explorer 11.3636.19041.0
Adobe Acrobat (64-bit) (23.001.20093)
Adobe Flash Player 32 NPAPI (32.0.0.465)
Adobe Flash Player 32 PPAPI (32.0.0.465)
CCleaner (6.20)
FileZilla 3.65.0 (3.65.0)
Google Chrome (122.0.6261.70)
Google Update Helper (1.3.36.51)
Java 8 Update 271 (64-bit) (8.0.2710.9)
Java Auto Updater (2.8.271.9)
Microsoft Edge (122.0.2365.59)
Microsoft Edge Update (1.3.185.17)
Microsoft Office Professional 2019 - de-de (16.0.16026.20146)
Microsoft Office Professional 2019 - en-us (16.0.16026.20146)
Microsoft Office Professional 2019 - es-es (16.0.16026.20146)
Microsoft Office Professional 2019 - it-it (16.0.16026.20146)
Microsoft Office Professional 2019 - ja-jp (16.0.16026.20146)
Microsoft Office Professional 2019 - ko-kr (16.0.16026.20146)
Microsoft Office Professional 2019 - pt-br (16.0.16026.20146)
Microsoft Office Professional 2019 - tr-tr (16.0.16026.20146)
Microsoft Office Professionnel 2019 - fr-fr (16.0.16026.20146)
Microsoft Office профессиональный 2019 - ru-ru (16.0.16026.20146)
Microsoft OneNote - en-us (16.0.16026.20146)
Microsoft Update Health Tools (3.74.0.0)
Microsoft Visual C++ 2013 Redistributable (x64) - 12.0.30501 (12.0.30501.0)
Microsoft Visual C++ 2013 x64 Additional Runtime - 12.0.21005 (12.0.21005)
Microsoft Visual C++ 2013 x64 Minimum Runtime - 12.0.21005 (12.0.21005)
Microsoft Visual C++ 2015-2022 Redistributable (x64) - 14.36.32532 (14.36.32532.0)
Microsoft Visual C++ 2015-2022 Redistributable (x86) - 14.36.32532 (14.36.32532.0)
Microsoft Visual C++ 2022 X64 Additional Runtime - 14.36.32532 (14.36.32532)
Microsoft Visual C++ 2022 X64 Minimum Runtime - 14.36.32532 (14.36.32532)
Microsoft Visual C++ 2022 X86 Additional Runtime - 14.36.32532 (14.36.32532)
Microsoft Visual C++ 2022 X86 Minimum Runtime - 14.36.32532 (14.36.32532)
Mozilla Firefox (x64 en-US) (123.0)
Mozilla Maintenance Service (123.0)
Notepad++ (64-bit x64) (7.9.1)
Office 16 Click-to-Run Extensibility Component (16.0.15726.20202)
Office 16 Click-to-Run Licensing Component (16.0.16026.20146)
Office 16 Click-to-Run Localization Component (16.0.15726.20202)
Office 16 Click-to-Run Localization Component (16.0.15928.20198)
PowerShell 7-x64 (7.3.5.0)
Skype version 8.104 (8.104)
Update for Windows 10 for x64-based Systems (KB4023057) (2.59.0.0)
Update for Windows 10 for x64-based Systems (KB4023057) (2.63.0.0)
Update for Windows 10 for x64-based Systems (KB4480730) (2.55.0.0)
Update for Windows 10 for x64-based Systems (KB5001716) (8.93.0.0)
VLC media player (3.0.11)
WinRAR 5.91 (64-bit) (5.91.0)
Windows PC Health Check (3.6.2204.08001)

Hotfixes

Client LanguagePack Package
DotNetRollup
DotNetRollup 481
FodMetadata Package
Foundation Package
Hello Face Package
InternetExplorer Optional Package
KB5003791
KB5011048
KB5015684
KB5033052
LanguageFeatures Basic en us Package
LanguageFeatures Handwriting en us Package
LanguageFeatures OCR en us Package
LanguageFeatures Speech en us Package
LanguageFeatures TextToSpeech en us Package
MSPaint FoD Package
MediaPlayer Package
Microsoft OneCore ApplicationModel Sync Desktop FOD Package
Microsoft OneCore DirectX Database FOD Package
NetFx3 OnDemand Package
Notepad FoD Package
OpenSSH Client Package
PowerShell ISE FOD Package
Printing PMCPPC FoD Package
Printing WFS FoD Package
ProfessionalEdition
QuickAssist Package
RollupFix
ServicingStack
ServicingStack 3989
StepsRecorder Package
TabletPCMath Package
UserExperience Desktop Package
WordPad FoD Package

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MALICIOUS
- Registers / Runs the DLL via REGSVR32.EXE
  - uninstall.exe (PID: 6564)
SUSPICIOUS
- Executable content was dropped or overwritten
  - FileZilla_3.68.1_win64-setup.exe (PID: 5244)
  - FileZilla_3.68.1_win64-setup.exe (PID: 4608)
  - uninstall.exe (PID: 6564)
- Malware-specific behavior (creating "System.dll" in Temp)
  - FileZilla_3.68.1_win64-setup.exe (PID: 5244)
  - FileZilla_3.68.1_win64-setup.exe (PID: 4608)
  - uninstall.exe (PID: 6564)
- Reads security settings of Internet Explorer
  - FileZilla_3.68.1_win64-setup.exe (PID: 5244)
- The process creates files with name similar to system file names
  - FileZilla_3.68.1_win64-setup.exe (PID: 5244)
  - uninstall.exe (PID: 6564)
- There is functionality for taking screenshot (YARA)
  - FileZilla_3.68.1_win64-setup.exe (PID: 5244)
  - FileZilla_3.68.1_win64-setup.exe (PID: 4608)
- Application launched itself
  - FileZilla_3.68.1_win64-setup.exe (PID: 5244)
INFO
- Checks supported languages
  - FileZilla_3.68.1_win64-setup.exe (PID: 5244)
  - uninstall.exe (PID: 6564)
- Reads the computer name
  - FileZilla_3.68.1_win64-setup.exe (PID: 5244)
  - uninstall.exe (PID: 6564)
- Create files in a temporary directory
  - FileZilla_3.68.1_win64-setup.exe (PID: 5244)
  - uninstall.exe (PID: 6564)
  - FileZilla_3.68.1_win64-setup.exe (PID: 4608)
- The sample compiled with english language support
  - FileZilla_3.68.1_win64-setup.exe (PID: 5244)
  - FileZilla_3.68.1_win64-setup.exe (PID: 4608)
- FileZilla executable
  - FileZilla_3.68.1_win64-setup.exe (PID: 5244)
  - FileZilla_3.68.1_win64-setup.exe (PID: 4608)
- Creates files in the program directory
  - FileZilla_3.68.1_win64-setup.exe (PID: 4608)
- Process checks computer location settings
  - FileZilla_3.68.1_win64-setup.exe (PID: 5244)

Find more information about signature artifacts and mapping to MITRE ATT&CK™ MATRIX at the full report

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No Malware configuration.

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TRiD

.exe	\|	Win32 Executable MS Visual C++ (generic) (67.4)
.dll	\|	Win32 Dynamic Link Library (generic) (14.2)
.exe	\|	Win32 Executable (generic) (9.7)
.exe	\|	Generic Win/DOS Executable (4.3)
.exe	\|	DOS Executable Generic (4.3)

EXIF

EXE

MachineType:	Intel 386 or later, and compatibles
TimeStamp:	2023:07:02 02:09:43+00:00
ImageFileCharacteristics:	No relocs, Executable, No line numbers, No symbols, 32-bit
PEType:	PE32
LinkerVersion:	6
CodeSize:	26624
InitializedDataSize:	139776
UninitializedDataSize:	2048
EntryPoint:	0x3645
OSVersion:	4
ImageVersion:	6
SubsystemVersion:	4
Subsystem:	Windows GUI
FileVersionNumber:	3.68.1.0
ProductVersionNumber:	3.68.1.0
FileFlagsMask:	0x0000
FileFlags:	(none)
FileOS:	Win32
ObjectFileType:	Executable application
FileSubtype:	-
LanguageCode:	English (U.S.)
CharacterSet:	Unicode
CompanyName:	Tim Kosse
FileDescription:	FileZilla FTP Client
FileVersion:	3.68.1
LegalCopyright:	Tim Kosse
OriginalFileName:	FileZilla_3.68.1_win32-setup.exe
ProductName:	FileZilla
ProductVersion:	3.68.1

No data.

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All screenshots are available in the full report

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Total processes

131

Monitored processes

Malicious processes

Suspicious processes

Behavior graph

Click at the process to see the details

Process information

PID	CMD	Path	Indicators	Parent process
2088	C:\WINDOWS\system32\SppExtComObj.exe -Embedding	C:\Windows\System32\SppExtComObj.Exe	—	svchost.exe
User: NETWORK SERVICE Company: Microsoft Corporation Integrity Level: SYSTEM Description: KMS Connection Broker Version: 10.0.19041.3996 (WinBuild.160101.0800)
4608	"C:\Users\admin\AppData\Local\Temp\FileZilla_3.68.1_win64-setup.exe" /UAC:4028A /NCRC	C:\Users\admin\AppData\Local\Temp\FileZilla_3.68.1_win64-setup.exe		FileZilla_3.68.1_win64-setup.exe
User: admin Company: Tim Kosse Integrity Level: HIGH Description: FileZilla FTP Client Version: 3.68.1
5212	"C:\WINDOWS\system32\regsvr32.exe" /s /u "C:\Program Files\FileZilla FTP Client\fzshellext_64.dll"	C:\Windows\System32\regsvr32.exe	—	uninstall.exe
User: admin Company: Microsoft Corporation Integrity Level: HIGH Description: Microsoft(C) Register Server Exit code: 0 Version: 10.0.19041.1 (WinBuild.160101.0800)
5244	"C:\Users\admin\AppData\Local\Temp\FileZilla_3.68.1_win64-setup.exe"	C:\Users\admin\AppData\Local\Temp\FileZilla_3.68.1_win64-setup.exe		explorer.exe
User: admin Company: Tim Kosse Integrity Level: MEDIUM Description: FileZilla FTP Client Version: 3.68.1
6564	"C:\Program Files\FileZilla FTP Client\uninstall.exe" /frominstall /keepstartmenudir _?=C:\Program Files\FileZilla FTP Client	C:\Program Files\FileZilla FTP Client\uninstall.exe		FileZilla_3.68.1_win64-setup.exe
User: admin Company: Tim Kosse Integrity Level: HIGH Description: FileZilla FTP Client Exit code: 0 Version: 3.65.0

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Total events

Read events

Write events

Delete events

Modification events

No data

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Executable files

Suspicious files

Text files

687

Unknown types

Dropped files

PID	Process	Filename		Type
4608	FileZilla_3.68.1_win64-setup.exe	C:\Users\admin\AppData\Local\Temp\nskCFA8.tmp\UAC.dll		executable
		MD5:ADB29E6B186DAA765DC750128649B63D	SHA256:2F7F8FC05DC4FD0D5CDA501B47E4433357E887BBFED7292C028D99C73B52DC08
5244	FileZilla_3.68.1_win64-setup.exe	C:\Users\admin\AppData\Local\Temp\nswC816.tmp\UserInfo.dll		executable
		MD5:D458B8251443536E4A334147E0170E95	SHA256:4913D4CCCF84CD0534069107CFF3E8E2F427160CAD841547DB9019310AC86CC7
4608	FileZilla_3.68.1_win64-setup.exe	C:\Users\admin\AppData\Local\Temp\nskCFA8.tmp\UserInfo.dll		executable
		MD5:D458B8251443536E4A334147E0170E95	SHA256:4913D4CCCF84CD0534069107CFF3E8E2F427160CAD841547DB9019310AC86CC7
6564	uninstall.exe	C:\Users\admin\AppData\Local\Temp\nsw5F36.tmp\modern-wizard.bmp		image
		MD5:CBE40FD2B1EC96DAEDC65DA172D90022	SHA256:3AD2DC318056D0A2024AF1804EA741146CFC18CC404649A44610CBF8B2056CF2
6564	uninstall.exe	C:\Users\admin\AppData\Local\Temp\nsw5F36.tmp\UserInfo.dll		executable
		MD5:98FF85B635D9114A9F6A0CD7B9B649D0	SHA256:933F93A30CE44DF96CBC4AC0B56A8B02EE01DA27E4EA665D1D846357A8FCA8DE
6564	uninstall.exe	C:\Users\admin\AppData\Local\Temp\nsw5F36.tmp\UAC.dll		executable
		MD5:ADB29E6B186DAA765DC750128649B63D	SHA256:2F7F8FC05DC4FD0D5CDA501B47E4433357E887BBFED7292C028D99C73B52DC08
6564	uninstall.exe	C:\Users\admin\AppData\Local\Temp\nsw5F36.tmp\System.dll		executable
		MD5:564BB0373067E1785CBA7E4C24AAB4BF	SHA256:7A9DDEE34562CD3703F1502B5C70E99CD5BBA15DE2B6845A3555033D7F6CB2A5
6564	uninstall.exe	C:\Users\admin\AppData\Local\Temp\nsg5F25.tmp		binary
		MD5:C7E474CA3901FC9AE5FD124308FF74E4	SHA256:4AAE673DFCC1FC8A4B90D0E0DB2BEB6769CED86AD23F3816B9533B2BDA2E2C50
4608	FileZilla_3.68.1_win64-setup.exe	C:\Program Files\FileZilla FTP Client\NEWS		text
		MD5:9B1AA809524D4761F79C3A17E2365C39	SHA256:D6443E7430E6513A4D2AD8F6CCD23446BF2FF5E4AFD1BF4542CC1E95AAB01DE6
4608	FileZilla_3.68.1_win64-setup.exe	C:\Users\admin\AppData\Local\Temp\nskCFA8.tmp\nsDialogs.dll		executable
		MD5:1D8F01A83DDD259BC339902C1D33C8F1	SHA256:4B7D17DA290F41EBE244827CC295CE7E580DA2F7E9F7CC3EFC1ABC6898E3C9ED

Download PCAP, analyze network streams, HTTP content and a lot more at the full report

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HTTP(S) requests

TCP/UDP connections

DNS requests

Threats

HTTP requests

PID	Process	Method	HTTP Code	IP	URL	CN	Type	Size	Reputation
5496	MoUsoCoreWorker.exe	GET	200	23.216.77.36:80	http://crl.microsoft.com/pki/crl/products/MicRooCerAut2011_2011_03_22.crl	unknown	—	—	whitelisted
—	—	GET	200	23.216.77.36:80	http://crl.microsoft.com/pki/crl/products/MicRooCerAut2011_2011_03_22.crl	unknown	—	—	whitelisted
6544	svchost.exe	GET	200	2.17.190.73:80	http://ocsp.digicert.com/MFEwTzBNMEswSTAJBgUrDgMCGgUABBSAUQYBMq2awn1Rh6Doh%2FsBYgFV7gQUA95QNVbRTLtm8KPiGxvDl7I90VUCEAJ0LqoXyo4hxxe7H%2Fz9DKA%3D	unknown	—	—	whitelisted
2268	SIHClient.exe	GET	200	184.30.21.171:80	http://www.microsoft.com/pkiops/crl/Microsoft%20ECC%20Update%20Secure%20Server%20CA%202.1.crl	unknown	—	—	whitelisted
5496	MoUsoCoreWorker.exe	GET	200	184.30.21.171:80	http://www.microsoft.com/pkiops/crl/MicSecSerCA2011_2011-10-18.crl	unknown	—	—	whitelisted
2268	SIHClient.exe	GET	200	184.30.21.171:80	http://www.microsoft.com/pkiops/crl/Microsoft%20ECC%20Product%20Root%20Certificate%20Authority%202018.crl	unknown	—	—	whitelisted
—	—	GET	200	184.30.21.171:80	http://www.microsoft.com/pkiops/crl/MicSecSerCA2011_2011-10-18.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
—	—	20.73.194.208:443	settings-win.data.microsoft.com	MICROSOFT-CORP-MSN-AS-BLOCK	NL	whitelisted
4	System	192.168.100.255:138	—	—	—	whitelisted
5496	MoUsoCoreWorker.exe	23.216.77.36:80	crl.microsoft.com	Akamai International B.V.	DE	whitelisted
—	—	23.216.77.36:80	crl.microsoft.com	Akamai International B.V.	DE	whitelisted
—	—	184.30.21.171:80	www.microsoft.com	AKAMAI-AS	DE	whitelisted
5496	MoUsoCoreWorker.exe	184.30.21.171:80	www.microsoft.com	AKAMAI-AS	DE	whitelisted
2112	svchost.exe	20.73.194.208:443	settings-win.data.microsoft.com	MICROSOFT-CORP-MSN-AS-BLOCK	NL	whitelisted
3216	svchost.exe	172.211.123.248:443	client.wns.windows.com	MICROSOFT-CORP-MSN-AS-BLOCK	FR	whitelisted
6544	svchost.exe	20.190.159.75:443	login.live.com	MICROSOFT-CORP-MSN-AS-BLOCK	IE	whitelisted
6544	svchost.exe	2.17.190.73:80	ocsp.digicert.com	AKAMAI-AS	DE	whitelisted

DNS requests

Domain	IP	Reputation
settings-win.data.microsoft.com	20.73.194.208 4.231.128.59	whitelisted
crl.microsoft.com	23.216.77.36 23.216.77.8 23.216.77.38	whitelisted
google.com	142.250.185.78	whitelisted
www.microsoft.com	184.30.21.171	whitelisted
client.wns.windows.com	172.211.123.248	whitelisted
login.live.com	20.190.159.75 40.126.31.1 20.190.159.23 20.190.159.128 20.190.159.4 20.190.159.71 40.126.31.2 40.126.31.73	whitelisted
ocsp.digicert.com	2.17.190.73	whitelisted
slscr.update.microsoft.com	52.149.20.212	whitelisted
fe3cr.delivery.mp.microsoft.com	13.95.31.18	whitelisted

Threats

No threats detected

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No debug info

General Info

FileZilla_3.68.1_win64-setup.exe

DEEADC6F907DA391D6A3B8DB202CA703

83DAA87D196208FB6DED2A4F31A862FA86061E18

1FEB6C12F584E98F9FDDF95BF128F549310C738376FAB82A5893EAFED765AD83

98304:TbszW6LZZCZC7WAqexU3pSRMIHYHZKXIRN6HPdVNOAh8i9I1L7hTBR/g5shbNtti:vhr+W7VVYtZB3t7ANXOA

Software environment set and analysis options

Launch configuration

Software preset

Hotfixes

Behavior activities

MALICIOUS

Registers / Runs the DLL via REGSVR32.EXE

SUSPICIOUS

Executable content was dropped or overwritten

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

Reads security settings of Internet Explorer

The process creates files with name similar to system file names

There is functionality for taking screenshot (YARA)

Application launched itself

INFO

Checks supported languages

Reads the computer name

Create files in a temporary directory

The sample compiled with english language support

FileZilla executable

Creates files in the program directory

Process checks computer location settings

Malware configuration

Static information

TRiD

EXIF

EXE

Video and screenshots

Processes

Behavior graph

Specs description

Process information

Information

Information

Information

Information

Information

Registry activity

Modification events

Files activity

Dropped files

Network activity

HTTP requests

Connections

DNS requests

Threats

Debug output strings