Malware analysis update.zip Malicious activity | ANY.RUN

Add for printing

File name:	update.zip
Full analysis:	https://app.any.run/tasks/bfc00e1b-b30e-41ec-8d69-434046939335
Verdict:	Malicious activity
Threats:	Cobalt Strike is a legitimate penetration software toolkit developed by Forta. But its cracked versions are widely adopted by bad actors, who use it as a C2 system of choice for targeted attacks. Malware Trends Tracker >>>
Analysis date:	June 21, 2025, 09:35:53
OS:	Windows 10 Professional (build: 19044, 64 bit)
Tags:	arch-exec cobaltstrike
Indicators:
MIME:	application/zip
File info:	Zip archive data, at least v2.0 to extract, compression method=deflate
MD5:	31A9D0B28185F46C3733D11137A09F92
SHA1:	AF3F1B5DC9DD8D75C20004741937F1BA03F205E0
SHA256:	99D1A9B21F8AD54C30DDC5B7A35089C70530C771C1F860153BA7156D607C3705
SSDEEP:	24576:aXD76WC3NsraZkm5LVVgumc9KoxE97ISetuDNbUXt3nUhnO:aXD76WC3NsaZkm5LVVgumc9KoxE97ISK

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:: 240 seconds
Heavy Evasion option:: off
Network geolocation:: off
Additional time used:: 180 seconds
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 (133.0.6943.127)
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 (133.0.3065.92)
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) (136.0)
Mozilla Maintenance Service (136.0)
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)
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

Add for printing

MALICIOUS
- Generic archive extractor
  - WinRAR.exe (PID: 2044)
- COBALTSTRIKE has been detected (YARA)
  - update.exe (PID: 6220)
SUSPICIOUS
- Reads security settings of Internet Explorer
  - update.exe (PID: 6220)
- Connects to unusual port
  - update.exe (PID: 6220)
INFO
- The sample compiled with english language support
  - WinRAR.exe (PID: 2044)
- Executable content was dropped or overwritten
  - WinRAR.exe (PID: 2044)
- Reads the machine GUID from the registry
  - update.exe (PID: 6220)
- Checks supported languages
  - update.exe (PID: 6220)
- Manual execution by a user
  - update.exe (PID: 6220)
- Checks proxy server information
  - slui.exe (PID: 1728)
  - update.exe (PID: 6220)
- Reads the software policy settings
  - slui.exe (PID: 1728)
  - update.exe (PID: 6220)
- Reads the computer name
  - update.exe (PID: 6220)

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

Add for printing

No Malware configuration.

Add for printing

TRiD

.zip	\|	ZIP compressed archive (100)

EXIF

ZIP

ZipRequiredVersion:	20
ZipBitFlag:	0x0800
ZipCompression:	Deflated
ZipModifyDate:	2025:05:20 22:34:16
ZipCRC:	0x1aec9e52
ZipCompressedSize:	301739
ZipUncompressedSize:	307406
ZipFileName:	bin

No data.

Add for printing

All screenshots are available in the full report

Add for printing

Total processes

141

Monitored processes

Malicious processes

Suspicious processes

Behavior graph

Click at the process to see the details

Process information

PID

CMD

Path

Indicators

Parent process

1728

C:\WINDOWS\System32\slui.exe -Embedding

C:\Windows\System32\slui.exe

svchost.exe

User:

admin

Company:

Microsoft Corporation

Integrity Level:

MEDIUM

Description:

Windows Activation Client

Exit code:

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

2044

"C:\Program Files\WinRAR\WinRAR.exe" C:\Users\admin\AppData\Local\Temp\update.zip

C:\Program Files\WinRAR\WinRAR.exe

explorer.exe

User:

admin

Company:

Alexander Roshal

Integrity Level:

MEDIUM

Description:

WinRAR archiver

Version:

5.91.0

Modules

Images
c:\program files\winrar\winrar.exe
c:\windows\system32\ntdll.dll
c:\windows\system32\kernel32.dll
c:\windows\system32\kernelbase.dll
c:\windows\system32\user32.dll
c:\windows\system32\win32u.dll
c:\windows\system32\gdi32.dll
c:\windows\system32\gdi32full.dll
c:\windows\system32\msvcp_win.dll
c:\windows\system32\ucrtbase.dll

6220

"C:\Users\admin\Desktop\update.exe"

C:\Users\admin\Desktop\update.exe

explorer.exe

User:

admin

Company:

Zoom Communications, Inc.

Integrity Level:

MEDIUM

Description:

Zoom

Version:

6,3,11,60501

Modules

Images
c:\users\admin\desktop\update.exe
c:\windows\system32\ntdll.dll
c:\windows\system32\kernel32.dll
c:\windows\system32\kernelbase.dll
c:\windows\system32\apphelp.dll
c:\windows\system32\user32.dll
c:\windows\system32\win32u.dll
c:\windows\system32\gdi32.dll
c:\windows\system32\gdi32full.dll
c:\windows\system32\msvcp_win.dll

Add for printing

Total events

6 183

Read events

6 159

Write events

Delete events

Modification events


(PID) Process:	(2044) WinRAR.exe	Key:	HKEY_CURRENT_USER\SOFTWARE\WinRAR\ArcHistory
Operation:	write	Name:	3
Value: C:\Users\admin\Desktop\preferences.zip
(PID) Process:	(2044) WinRAR.exe	Key:	HKEY_CURRENT_USER\SOFTWARE\WinRAR\ArcHistory
Operation:	write	Name:	2
Value: C:\Users\admin\Desktop\chromium_ext.zip
(PID) Process:	(2044) WinRAR.exe	Key:	HKEY_CURRENT_USER\SOFTWARE\WinRAR\ArcHistory
Operation:	write	Name:	1
Value: C:\Users\admin\Desktop\omni_23_10_2024_.zip
(PID) Process:	(2044) WinRAR.exe	Key:	HKEY_CURRENT_USER\SOFTWARE\WinRAR\ArcHistory
Operation:	write	Name:	0
Value: C:\Users\admin\AppData\Local\Temp\update.zip
(PID) Process:	(2044) WinRAR.exe	Key:	HKEY_CURRENT_USER\SOFTWARE\WinRAR\FileList\FileColumnWidths
Operation:	write	Name:	name
Value: 120
(PID) Process:	(2044) WinRAR.exe	Key:	HKEY_CURRENT_USER\SOFTWARE\WinRAR\FileList\FileColumnWidths
Operation:	write	Name:	size
Value: 80
(PID) Process:	(2044) WinRAR.exe	Key:	HKEY_CURRENT_USER\SOFTWARE\WinRAR\FileList\FileColumnWidths
Operation:	write	Name:	type
Value: 120
(PID) Process:	(2044) WinRAR.exe	Key:	HKEY_CURRENT_USER\SOFTWARE\WinRAR\FileList\FileColumnWidths
Operation:	write	Name:	mtime
Value: 100
(PID) Process:	(2044) WinRAR.exe	Key:	HKEY_CURRENT_USER\SOFTWARE\WinRAR\DialogEditHistory\ExtrPath
Operation:	delete value	Name:	15
Value:
(PID) Process:	(2044) WinRAR.exe	Key:	HKEY_CURRENT_USER\SOFTWARE\WinRAR\DialogEditHistory\ExtrPath
Operation:	delete value	Name:	14
Value:

Add for printing

Executable files

Suspicious files

Text files

Unknown types

Dropped files

PID	Process	Filename		Type
2044	WinRAR.exe	C:\Users\admin\Desktop\bin		binary
		MD5:F6BAEF1EB00F7AB0C69F9D8001B2B814	SHA256:9702E80EBAB8B1E6BD27F4F0C4B6927CDEB4E5AEBFDAADEAF59C7D47B7156ED9
2044	WinRAR.exe	C:\Users\admin\Desktop\update.exe		executable
		MD5:5211F010A6081ED5E0E092A898C77D5C	SHA256:FD673AEDBAEE1AFABD33253B8955923B6054A26E2EB913676C37D0BB4191E421

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

Add for printing

HTTP(S) requests

TCP/UDP connections

DNS requests

Threats

HTTP requests

PID	Process	Method	HTTP Code	IP	URL	CN	Type	Size	Reputation
1268	svchost.exe	GET	200	184.24.77.28:80	http://crl.microsoft.com/pki/crl/products/MicRooCerAut2011_2011_03_22.crl	unknown	—	—	whitelisted
1268	svchost.exe	GET	200	184.30.21.171:80	http://www.microsoft.com/pkiops/crl/MicSecSerCA2011_2011-10-18.crl	unknown	—	—	whitelisted
1948	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
2940	svchost.exe	GET	200	69.192.161.44:80	http://x1.c.lencr.org/	unknown	—	—	whitelisted
436	svchost.exe	GET	200	2.17.190.73:80	http://ocsp.digicert.com/MFEwTzBNMEswSTAJBgUrDgMCGgUABBSAUQYBMq2awn1Rh6Doh%2FsBYgFV7gQUA95QNVbRTLtm8KPiGxvDl7I90VUCEAJ0LqoXyo4hxxe7H%2Fz9DKA%3D	unknown	—	—	whitelisted
1948	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

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
1268	svchost.exe	51.104.136.2:443	settings-win.data.microsoft.com	MICROSOFT-CORP-MSN-AS-BLOCK	IE	whitelisted
5944	MoUsoCoreWorker.exe	51.104.136.2:443	settings-win.data.microsoft.com	MICROSOFT-CORP-MSN-AS-BLOCK	IE	whitelisted
5372	RUXIMICS.exe	51.104.136.2:443	settings-win.data.microsoft.com	MICROSOFT-CORP-MSN-AS-BLOCK	IE	whitelisted
4	System	192.168.100.255:138	—	—	—	whitelisted
1268	svchost.exe	184.24.77.28:80	crl.microsoft.com	Akamai International B.V.	DE	whitelisted
1268	svchost.exe	184.30.21.171:80	www.microsoft.com	AKAMAI-AS	DE	whitelisted
5944	MoUsoCoreWorker.exe	20.73.194.208:443	settings-win.data.microsoft.com	MICROSOFT-CORP-MSN-AS-BLOCK	NL	whitelisted
1948	SIHClient.exe	52.149.20.212:443	slscr.update.microsoft.com	MICROSOFT-CORP-MSN-AS-BLOCK	US	whitelisted
1948	SIHClient.exe	184.30.21.171:80	www.microsoft.com	AKAMAI-AS	DE	whitelisted

DNS requests

Domain	IP	Reputation
settings-win.data.microsoft.com	51.104.136.2 20.73.194.208	whitelisted
google.com	142.250.186.78	whitelisted
crl.microsoft.com	184.24.77.28 184.24.77.38 184.24.77.36 184.24.77.22 184.24.77.21 184.24.77.24 184.24.77.34 184.24.77.23 184.24.77.33	whitelisted
www.microsoft.com	184.30.21.171	whitelisted
slscr.update.microsoft.com	52.149.20.212	whitelisted
fe3cr.delivery.mp.microsoft.com	20.242.39.171	whitelisted
login.live.com	40.126.31.0 20.190.159.128 40.126.31.69 40.126.31.3 20.190.159.23 40.126.31.129 20.190.159.68 20.190.159.64	whitelisted
ocsp.digicert.com	2.17.190.73	whitelisted
client.wns.windows.com	172.211.123.249 172.211.123.250	whitelisted
activation-v2.sls.microsoft.com	20.83.72.98	whitelisted

Threats

No threats detected

Add for printing

No debug info

General Info

update.zip

31A9D0B28185F46C3733D11137A09F92

AF3F1B5DC9DD8D75C20004741937F1BA03F205E0

99D1A9B21F8AD54C30DDC5B7A35089C70530C771C1F860153BA7156D607C3705

24576:aXD76WC3NsraZkm5LVVgumc9KoxE97ISetuDNbUXt3nUhnO:aXD76WC3NsaZkm5LVVgumc9KoxE97ISK

Software environment set and analysis options

Launch configuration

Software preset

Hotfixes

Behavior activities

MALICIOUS

Generic archive extractor

COBALTSTRIKE has been detected (YARA)

SUSPICIOUS

Reads security settings of Internet Explorer

Connects to unusual port

INFO

The sample compiled with english language support

Executable content was dropped or overwritten

Reads the machine GUID from the registry

Checks supported languages

Manual execution by a user

Checks proxy server information

Reads the software policy settings

Reads the computer name

Malware configuration

Static information

TRiD

EXIF

ZIP

Video and screenshots

Processes

Behavior graph

Specs description

Process information

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