Malware analysis tuxboot-0.8.3.exe Malicious activity

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File name:	tuxboot-0.8.3.exe
Full analysis:	https://app.any.run/tasks/5575bd59-99e8-479a-99cf-0333b68094c7
Verdict:	Malicious activity
Analysis date:	December 11, 2024, 16:13:28
OS:	Windows 10 Professional (build: 19045, 64 bit)
Tags:	opendir
Indicators:
MIME:	application/vnd.microsoft.portable-executable
File info:	PE32 executable (GUI) Intel 80386 (stripped to external PDB), for MS Windows, UPX compressed, 3 sections
MD5:	622E64D40114647AD507E3822D0AA09B
SHA1:	A7D09203F9A58BF052284CF8913562350B979889
SHA256:	7C7149929F5DD28AB32BA96A7C966A3727A9ACCE9AC70731187CFD05D0C3C7FA
SSDEEP:	98304:NmFFIJkGJFC62LEddMdrMd0JD3OrLLzKz3rYv4NfwbtHUNFqu8UvGFH/tPj/F5fs:tV76vApY9Wx9O+9z

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:
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
- Detects Cygwin installation
  - tuxboot-0.8.3.exe (PID: 6440)
SUSPICIOUS
- Searches for installed software
  - tuxboot-0.8.3.exe (PID: 6440)
- Executable content was dropped or overwritten
  - tuxboot-0.8.3.exe (PID: 6440)
- Drops 7-zip archiver for unpacking
  - tuxboot-0.8.3.exe (PID: 6440)
INFO
- Create files in a temporary directory
  - tuxboot-0.8.3.exe (PID: 6440)
- Checks supported languages
  - tuxboot-0.8.3.exe (PID: 6440)
- Reads the computer name
  - tuxboot-0.8.3.exe (PID: 6440)
- Reads the machine GUID from the registry
  - tuxboot-0.8.3.exe (PID: 6440)
- The sample compiled with english language support
  - tuxboot-0.8.3.exe (PID: 6440)

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	\|	UPX compressed Win32 Executable (43.5)
.exe	\|	Win32 EXE Yoda's Crypter (42.7)
.exe	\|	Win32 Executable (generic) (7.2)
.exe	\|	Generic Win/DOS Executable (3.2)
.exe	\|	DOS Executable Generic (3.2)

EXIF

EXE

MachineType:	Intel 386 or later, and compatibles
TimeStamp:	2015:06:24 15:23:23+00:00
ImageFileCharacteristics:	No relocs, Executable, No line numbers, No symbols, 32-bit, No debug
PEType:	PE32
LinkerVersion:	2.25
CodeSize:	7778304
InitializedDataSize:	8192
UninitializedDataSize:	13217792
EntryPoint:	0x1406ca0
OSVersion:	4
ImageVersion:	1
SubsystemVersion:	4
Subsystem:	Windows GUI
FileVersionNumber:	1.1.1.1
ProductVersionNumber:	1.1.1.1
FileFlagsMask:	0x0000
FileFlags:	(none)
FileOS:	Unknown (0)
ObjectFileType:	Unknown
FileSubtype:	-
LanguageCode:	English (U.S.)
CharacterSet:	Windows, Latin1
CompanyName:	Thomas Tsai
FileVersion:
FileDescription:	tuxboot - http://tuxboot.sourceforge.net
InternalName:	Tuxboot
LegalCopyright:	Copyright - Geza Kovacs+Thomas Tsai - License - GNU GPL v2+
LegalTrademarks:
OriginalFileName:	tuxboot.exe
ProductName:	Tuxboot
ProductVersion:

No data.

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All screenshots are available in the full report

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Total processes

128

Monitored processes

Malicious processes

Suspicious processes

Behavior graph

Click at the process to see the details

Process information

PID

CMD

Path

Indicators

Parent process

6244

"C:\Users\admin\Desktop\tuxboot-0.8.3.exe"

C:\Users\admin\Desktop\tuxboot-0.8.3.exe

—

explorer.exe

User:

admin

Company:

Thomas Tsai

Integrity Level:

MEDIUM

Description:

tuxboot - http://tuxboot.sourceforge.net

Exit code:

3221226540

Version:

Modules

Images
c:\users\admin\desktop\tuxboot-0.8.3.exe
c:\windows\system32\ntdll.dll
c:\windows\syswow64\ntdll.dll

6440

"C:\Users\admin\Desktop\tuxboot-0.8.3.exe"

C:\Users\admin\Desktop\tuxboot-0.8.3.exe

explorer.exe

User:

admin

Company:

Thomas Tsai

Integrity Level:

HIGH

Description:

tuxboot - http://tuxboot.sourceforge.net

Version:

Modules

Images
c:\users\admin\desktop\tuxboot-0.8.3.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

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Total events

2 203

Read events

2 201

Write events

Delete events

Modification events


(PID) Process:	(6440) tuxboot-0.8.3.exe	Key:	HKEY_LOCAL_MACHINE\SOFTWARE\WOW6432Node\Microsoft\Windows NT\CurrentVersion\AppCompatFlags\Layers
Operation:	write	Name:	C:/Users/admin/Desktop/tuxboot-0.8.3.exe
Value: VISTARTM
(PID) Process:	(6440) tuxboot-0.8.3.exe	Key:	HKEY_CURRENT_USER\SOFTWARE\Microsoft\Windows NT\CurrentVersion\AppCompatFlags\Compatibility Assistant\Persisted
Operation:	write	Name:	C:/Users/admin/Desktop/tuxboot-0.8.3.exe
Value: 1

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Executable files

Suspicious files

Text files

Unknown types

Dropped files

PID	Process	Filename		Type
6440	tuxboot-0.8.3.exe	C:\Users\admin\AppData\Local\Temp\sevnz.exe		executable
		MD5:A51D90F2F9394F5EA0A3ACAE3BD2B219	SHA256:AC9674FEB8F2FAD20C1E046DE67F899419276AE79A60E8CC021A4BF472AE044F
6440	tuxboot-0.8.3.exe	C:\Users\admin\AppData\Local\Temp\cygwin1.dll		executable
		MD5:AF9801D354C3AED2A14034D7DA2A949C	SHA256:77B93AB10CEBE802EF48FFBB2CF30405959315D74A5A9CEE2E20A020F59430DB
6440	tuxboot-0.8.3.exe	C:\Users\admin\AppData\Local\Temp\md5sum.exe		executable
		MD5:C66EE52BB9EFFBB6B5F085643602D95B	SHA256:77B0879EF0C2321404777C1FD281713624BFBC88353EC099A35FE9B7F45D8A94
6440	tuxboot-0.8.3.exe	C:\Users\admin\AppData\Local\Temp\cygintl-8.dll		executable
		MD5:2C9168FFF113931ED0CCCDEA85137DE7	SHA256:67818B5FA50BE343E7D1B07D441F7B0FABA0AC3914505B1970825118CEE4E86F
6440	tuxboot-0.8.3.exe	C:\Users\admin\AppData\Local\Temp\cygiconv-2.dll		executable
		MD5:98602C8C1FEB722867AC2DFE9E083DF7	SHA256:DA3AA90F86BD664CC02DB8F8D707A9E7303EC552455ACD5AF9AEBDA199ADEC26
6440	tuxboot-0.8.3.exe	C:\Users\admin\AppData\Local\Temp\7z.dll		executable
		MD5:04AD4B80880B32C94BE8D0886482C774	SHA256:A1E1D1F0FFF4FCCCFBDFA313F3BDFEA4D3DFE2C2D9174A615BBC39A0A6929338
6440	tuxboot-0.8.3.exe	C:\Users\admin\AppData\Local\Temp\un20073.html		html
		MD5:6A366F82A8377F8F3FCFED05D021784B	SHA256:25CDAA82E73B35D3406117A2B296AA5C00A27512163D325ECBC8B1D8F6DBA4FA
6440	tuxboot-0.8.3.exe	C:\Users\admin\AppData\Local\Temp\un20056.html		html
		MD5:6A366F82A8377F8F3FCFED05D021784B	SHA256:25CDAA82E73B35D3406117A2B296AA5C00A27512163D325ECBC8B1D8F6DBA4FA

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
—	—	GET	200	88.221.169.152:80	http://www.microsoft.com/pkiops/crl/MicSecSerCA2011_2011-10-18.crl	unknown	—	—	whitelisted
—	—	GET	200	88.221.169.152:80	http://www.microsoft.com/pkiops/crl/MicSecSerCA2011_2011-10-18.crl	unknown	—	—	whitelisted
—	—	GET	200	2.16.241.12:80	http://crl.microsoft.com/pki/crl/products/MicRooCerAut2011_2011_03_22.crl	unknown	—	—	whitelisted
4712	MoUsoCoreWorker.exe	GET	200	88.221.169.152:80	http://www.microsoft.com/pkiops/crl/MicSecSerCA2011_2011-10-18.crl	unknown	—	—	whitelisted
4712	MoUsoCoreWorker.exe	GET	200	2.16.241.12:80	http://crl.microsoft.com/pki/crl/products/MicRooCerAut2011_2011_03_22.crl	unknown	—	—	whitelisted
—	—	GET	200	2.16.241.12:80	http://crl.microsoft.com/pki/crl/products/MicRooCerAut2011_2011_03_22.crl	unknown	—	—	whitelisted
1176	svchost.exe	GET	200	192.229.221.95:80	http://ocsp.digicert.com/MFEwTzBNMEswSTAJBgUrDgMCGgUABBSAUQYBMq2awn1Rh6Doh%2FsBYgFV7gQUA95QNVbRTLtm8KPiGxvDl7I90VUCEAJ0LqoXyo4hxxe7H%2Fz9DKA%3D	unknown	—	—	whitelisted
—	—	GET	200	192.229.221.95:80	http://ocsp.digicert.com/MFEwTzBNMEswSTAJBgUrDgMCGgUABBTrjrydRyt%2BApF3GSPypfHBxR5XtQQUs9tIpPmhxdiuNkHMEWNpYim8S8YCEAI5PUjXAkJafLQcAAsO18o%3D	unknown	—	—	whitelisted
6440	tuxboot-0.8.3.exe	GET	200	140.110.240.80:80	http://140.110.240.80:80/clonezilla-live/stable/	unknown	—	—	unknown
6440	tuxboot-0.8.3.exe	GET	200	140.110.240.80:80	http://140.110.240.80:80/clonezilla-live/stable/	unknown	—	—	unknown

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
—	—	4.231.128.59:443	settings-win.data.microsoft.com	MICROSOFT-CORP-MSN-AS-BLOCK	IE	whitelisted
4712	MoUsoCoreWorker.exe	2.16.241.12:80	crl.microsoft.com	Akamai International B.V.	DE	whitelisted
—	—	2.16.241.12:80	crl.microsoft.com	Akamai International B.V.	DE	whitelisted
4712	MoUsoCoreWorker.exe	88.221.169.152:80	www.microsoft.com	AKAMAI-AS	DE	whitelisted
—	—	88.221.169.152:80	www.microsoft.com	AKAMAI-AS	DE	whitelisted
5064	SearchApp.exe	2.23.209.175:443	www.bing.com	Akamai International B.V.	GB	whitelisted
—	—	192.229.221.95:80	ocsp.digicert.com	EDGECAST	US	whitelisted
4	System	192.168.100.255:138	—	—	—	whitelisted
1076	svchost.exe	23.218.210.69:443	go.microsoft.com	AKAMAI-AS	DE	whitelisted

DNS requests

Domain	IP	Reputation
settings-win.data.microsoft.com	4.231.128.59 20.73.194.208	whitelisted
crl.microsoft.com	2.16.241.12 2.16.241.19	whitelisted
www.microsoft.com	88.221.169.152 23.218.209.163	whitelisted
google.com	172.217.16.206	whitelisted
www.bing.com	2.23.209.175 2.23.209.182 2.23.209.183 2.23.209.156 2.23.209.177 2.23.209.185 2.23.209.162 2.23.209.179 2.23.209.154	whitelisted
ocsp.digicert.com	192.229.221.95	whitelisted
go.microsoft.com	23.218.210.69	whitelisted
login.live.com	40.126.32.136 40.126.32.76 40.126.32.140 40.126.32.72 20.190.160.20 40.126.32.74 40.126.32.133 20.190.160.22	whitelisted
free.nchc.org.tw	140.110.240.80	unknown
slscr.update.microsoft.com	20.12.23.50	whitelisted

Threats

PID	Process	Class	Message
6440	tuxboot-0.8.3.exe	Potentially Bad Traffic	ET INFO HTTP Request to a *.tw domain
6440	tuxboot-0.8.3.exe	Potentially Bad Traffic	ET INFO HTTP Request to a *.tw domain

2 ETPRO signatures available at the full report

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No debug info

General Info

tuxboot-0.8.3.exe

622E64D40114647AD507E3822D0AA09B

A7D09203F9A58BF052284CF8913562350B979889

7C7149929F5DD28AB32BA96A7C966A3727A9ACCE9AC70731187CFD05D0C3C7FA

98304:NmFFIJkGJFC62LEddMdrMd0JD3OrLLzKz3rYv4NfwbtHUNFqu8UvGFH/tPj/F5fs:tV76vApY9Wx9O+9z

Software environment set and analysis options

Launch configuration

Software preset

Hotfixes

Behavior activities

MALICIOUS

Detects Cygwin installation

SUSPICIOUS

Searches for installed software

Executable content was dropped or overwritten

Drops 7-zip archiver for unpacking

INFO

Create files in a temporary directory

Checks supported languages

Reads the computer name

Reads the machine GUID from the registry

The sample compiled with english language support

Malware configuration

Static information

TRiD

EXIF

EXE

Video and screenshots

Processes

Behavior graph

Specs description

Process information

Information

Modules

Information

Modules

Registry activity

Modification events

Files activity

Dropped files

Network activity

HTTP requests

Connections

DNS requests

Threats

Debug output strings