Malware analysis Holzer.exe Malicious activity | ANY.RUN

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File name:	Holzer.exe
Full analysis:	https://app.any.run/tasks/d9ab5741-f449-4ed3-906a-9544b089c911
Verdict:	Malicious activity
Analysis date:	March 24, 2025, 16:32:15
OS:	Windows 10 Professional (build: 19045, 64 bit)
Tags:	auto generic
Indicators:
MIME:	application/vnd.microsoft.portable-executable
File info:	PE32 executable (console) Intel 80386, for MS Windows, 5 sections
MD5:	C971C68B4E58CCC82802B21AE8488BC7
SHA1:	7305F3A0A0A0D489E0BCF664353289F61556DE77
SHA256:	CEDE0B15D88C20BC750B516858F8BF31EE472F6CBD01640840890736C4333CCE
SSDEEP:	3072:2EYGNIaWY/0kTKxIJXtJ0YCHiQtSetFITTTTTHvvvvvNKB8:HN5TKvr9PuKB8

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
- GENERIC has been found (auto)
  - Holzer.exe (PID: 4172)
SUSPICIOUS
- There is functionality for taking screenshot (YARA)
  - Holzer.exe (PID: 4172)
INFO
- Checks supported languages
  - Holzer.exe (PID: 4172)
- Reads the computer name
  - Holzer.exe (PID: 4172)

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	\|	Win64 Executable (generic) (64.6)
.dll	\|	Win32 Dynamic Link Library (generic) (15.4)
.exe	\|	Win32 Executable (generic) (10.5)
.exe	\|	Generic Win/DOS Executable (4.6)
.exe	\|	DOS Executable Generic (4.6)

EXIF

EXE

MachineType:	Intel 386 or later, and compatibles
TimeStamp:	2021:10:26 22:11:57+00:00
ImageFileCharacteristics:	Executable, 32-bit
PEType:	PE32
LinkerVersion:	14.29
CodeSize:	57344
InitializedDataSize:	82432
UninitializedDataSize:	-
EntryPoint:	0x3fab
OSVersion:	5.1
ImageVersion:	-
SubsystemVersion:	5.1
Subsystem:	Windows command line

No data.

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All screenshots are available in the full report

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Total processes

133

Monitored processes

Malicious processes

Suspicious processes

Behavior graph

Click at the process to see the details

Process information

PID

CMD

Path

Indicators

Parent process

976

"C:\Users\admin\AppData\Local\Temp\Holzer.exe"

C:\Users\admin\AppData\Local\Temp\Holzer.exe

—

explorer.exe

User:

admin

Integrity Level:

MEDIUM

Exit code:

3221226540

Modules

Images
c:\users\admin\appdata\local\temp\holzer.exe
c:\windows\system32\ntdll.dll
c:\windows\syswow64\ntdll.dll

2320

\??\C:\WINDOWS\system32\conhost.exe 0xffffffff -ForceV1

C:\Windows\System32\conhost.exe

—

Holzer.exe

User:

admin

Company:

Microsoft Corporation

Integrity Level:

HIGH

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

2392

"C:\WINDOWS\System32\SLUI.exe" RuleId=3482d82e-ca2c-4e1f-8864-da0267b484b2;Action=AutoActivate;AppId=55c92734-d682-4d71-983e-d6ec3f16059f;SkuId=4de7cb65-cdf1-4de9-8ae8-e3cce27b9f2c;NotificationInterval=1440;Trigger=TimerEvent

C:\Windows\System32\slui.exe

—

SppExtComObj.Exe

User:

NETWORK SERVICE

Company:

Microsoft Corporation

Integrity Level:

SYSTEM

Description:

Windows Activation Client

Version:

10.0.19041.1 (WinBuild.160101.0800)

Modules

Images
c:\windows\system32\slui.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\user32.dll

4172

"C:\Users\admin\AppData\Local\Temp\Holzer.exe"

C:\Users\admin\AppData\Local\Temp\Holzer.exe

explorer.exe

User:

admin

Integrity Level:

HIGH

Modules

Images
c:\users\admin\appdata\local\temp\holzer.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

6032

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)

Modules

Images
c:\windows\system32\sppextcomobj.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\oleaut32.dll

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Total events

169

Read events

166

Write events

Delete events

Modification events


(PID) Process:	(4172) Holzer.exe	Key:	HKEY_CURRENT_USER\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\System
Operation:	write	Name:	DisableTaskMgr
Value: 1
(PID) Process:	(4172) Holzer.exe	Key:	HKEY_CURRENT_USER\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\System
Operation:	write	Name:	DisableRegistryTools
Value: 1
(PID) Process:	(4172) Holzer.exe	Key:	HKEY_CURRENT_USER\SOFTWARE\Policies\Microsoft\Windows\System
Operation:	write	Name:	DisableCMD
Value: 1

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Executable files

Suspicious files

Text files

Unknown types

Dropped files

PID	Process	Filename		Type
4172	Holzer.exe	\Device\Harddisk0\DR0		—
		MD5:—	SHA256:—

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	23.48.23.149:80	http://crl.microsoft.com/pki/crl/products/MicRooCerAut2011_2011_03_22.crl	unknown	—	—	unknown
6544	svchost.exe	GET	200	23.54.109.203:80	http://ocsp.digicert.com/MFEwTzBNMEswSTAJBgUrDgMCGgUABBSAUQYBMq2awn1Rh6Doh%2FsBYgFV7gQUA95QNVbRTLtm8KPiGxvDl7I90VUCEAJ0LqoXyo4hxxe7H%2Fz9DKA%3D	unknown	—	—	unknown
6036	backgroundTaskHost.exe	GET	200	23.54.109.203:80	http://ocsp.digicert.com/MFEwTzBNMEswSTAJBgUrDgMCGgUABBQ50otx%2Fh0Ztl%2Bz8SiPI7wEWVxDlQQUTiJUIBiV5uNu5g%2F6%2BrkS7QYXjzkCEAUZZSZEml49Gjh0j13P68w%3D	unknown	—	—	unknown

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Connections

PID	Process	IP	Domain	ASN	CN	Reputation
—	—	192.168.100.255:137	—	—	—	unknown
—	—	51.124.78.146:443	settings-win.data.microsoft.com	MICROSOFT-CORP-MSN-AS-BLOCK	NL	unknown
—	—	23.48.23.149:80	crl.microsoft.com	Akamai International B.V.	DE	unknown
4	System	192.168.100.255:138	—	—	—	unknown
5496	MoUsoCoreWorker.exe	51.124.78.146:443	settings-win.data.microsoft.com	MICROSOFT-CORP-MSN-AS-BLOCK	NL	unknown
3216	svchost.exe	40.113.110.67:443	client.wns.windows.com	MICROSOFT-CORP-MSN-AS-BLOCK	NL	unknown
6544	svchost.exe	20.190.159.130:443	login.live.com	MICROSOFT-CORP-MSN-AS-BLOCK	IE	unknown
6544	svchost.exe	23.54.109.203:80	ocsp.digicert.com	AKAMAI-AS	DE	unknown
6036	backgroundTaskHost.exe	20.199.58.43:443	arc.msn.com	MICROSOFT-CORP-MSN-AS-BLOCK	FR	unknown
6036	backgroundTaskHost.exe	23.54.109.203:80	ocsp.digicert.com	AKAMAI-AS	DE	unknown

DNS requests

Domain	IP	Reputation
settings-win.data.microsoft.com	51.124.78.146	unknown
crl.microsoft.com	23.48.23.149 23.48.23.159 23.48.23.146 23.48.23.141 23.48.23.137 23.48.23.153 23.48.23.194 23.48.23.190 23.48.23.138	unknown
google.com	172.217.16.206	unknown
client.wns.windows.com	40.113.110.67	unknown
login.live.com	20.190.159.130 20.190.159.73 20.190.159.131 20.190.159.2 40.126.31.128 40.126.31.131 40.126.31.69 40.126.31.73	unknown
ocsp.digicert.com	23.54.109.203	unknown
arc.msn.com	20.199.58.43	unknown

Threats

No threats detected

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No debug info

General Info

Holzer.exe

C971C68B4E58CCC82802B21AE8488BC7

7305F3A0A0A0D489E0BCF664353289F61556DE77

CEDE0B15D88C20BC750B516858F8BF31EE472F6CBD01640840890736C4333CCE

3072:2EYGNIaWY/0kTKxIJXtJ0YCHiQtSetFITTTTTHvvvvvNKB8:HN5TKvr9PuKB8

Software environment set and analysis options

Launch configuration

Software preset

Hotfixes

Behavior activities

MALICIOUS

GENERIC has been found (auto)

SUSPICIOUS

There is functionality for taking screenshot (YARA)

INFO

Checks supported languages

Reads the computer name

Malware configuration

Static information

TRiD

EXIF

EXE

Video and screenshots

Processes

Behavior graph

Specs description

Process information

Information

Modules

Information

Modules

Information

Modules

Information

Modules

Information

Modules

Registry activity

Modification events

Files activity

Dropped files

Network activity

HTTP requests

Connections

DNS requests

Threats

Debug output strings