Malware analysis ViperRansomware.zip Malicious activity

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File name:	ViperRansomware.zip
Full analysis:	https://app.any.run/tasks/e90e0d1d-c5ba-4443-8964-a7767e57d63d
Verdict:	Malicious activity
Threats:	Ransomware is a type of malicious software that locks users out of their system or data using different methods to force them to pay a ransom. Most often, such programs encrypt files on an infected machine and demand a fee to be paid in exchange for the decryption key. Additionally, such programs can be used to steal sensitive information from the compromised computer and even conduct DDoS attacks against affected organizations to pressure them into paying. Malware Trends Tracker >>>
Analysis date:	June 06, 2025, 10:46:34
OS:	Windows 10 Professional (build: 19044, 64 bit)
Tags:	arch-exec ransomware
Indicators:
MIME:	application/zip
File info:	Zip archive data, at least v2.0 to extract, compression method=deflate
MD5:	FDC36FA26AD101D8EF6474E93769B0F7
SHA1:	CBC30F4CE19AE39B72F4236384A3C3235C32B779
SHA256:	C1563DC7766670D61C0EC9B0CD263AB9C53EA0D1457B7C2BA778715010828A1D
SSDEEP:	96:G1BjZnGA8wrMdKSyf2ZN+im4k+sUaMd0MpCJIiHAPdKYU3oc44WIBg0ztmXLW1gL:cn0KJwHRs2eMpSfHAPd4IStKLk8vdn/

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
- Generic archive extractor
  - WinRAR.exe (PID: 4620)
- RANSOMWARE has been detected
  - ViperRansomware.exe (PID: 6048)
SUSPICIOUS
- Reads security settings of Internet Explorer
  - WinRAR.exe (PID: 4620)
- Write to the desktop.ini file (may be used to cloak folders)
  - ViperRansomware.exe (PID: 6048)
INFO
- Checks supported languages
  - ViperRansomware.exe (PID: 6048)
- Executable content was dropped or overwritten
  - WinRAR.exe (PID: 4620)
- Reads the computer name
  - ViperRansomware.exe (PID: 6048)
- Reads the machine GUID from the registry
  - ViperRansomware.exe (PID: 6048)
- Reads the software policy settings
  - slui.exe (PID: 7256)
- Manual execution by a user
  - notepad.exe (PID: 1268)
- Reads security settings of Internet Explorer
  - notepad.exe (PID: 1268)

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

.zip	\|	ZIP compressed archive (100)

EXIF

ZIP

ZipRequiredVersion:	20
ZipBitFlag:	-
ZipCompression:	Deflated
ZipModifyDate:	2025:04:16 05:04:58
ZipCRC:	0x31ec89ac
ZipCompressedSize:	5080
ZipUncompressedSize:	11776
ZipFileName:	ViperRansomware.exe

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

1268

"C:\WINDOWS\system32\NOTEPAD.EXE" C:\Users\admin\Desktop\Viper_README.RW-SK.txt

C:\Windows\System32\notepad.exe

—

explorer.exe

User:

admin

Company:

Microsoft Corporation

Integrity Level:

MEDIUM

Description:

Notepad

Exit code:

Version:

10.0.19041.1 (WinBuild.160101.0800)

Modules

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

2616

"C:\Users\admin\AppData\Local\Temp\Rar$EXa4620.11204\ViperRansomware.exe"

C:\Users\admin\AppData\Local\Temp\Rar$EXa4620.11204\ViperRansomware.exe

—

WinRAR.exe

User:

admin

Integrity Level:

MEDIUM

Description:

ConsoleApp1

Exit code:

3221226540

Version:

1.0.0.0

Modules

Images
c:\users\admin\appdata\local\temp\rar$exa4620.11204\viperransomware.exe
c:\windows\system32\ntdll.dll
c:\windows\syswow64\ntdll.dll

3208

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

4620

"C:\Program Files\WinRAR\WinRAR.exe" C:\Users\admin\Desktop\ViperRansomware.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

6044

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

C:\Windows\System32\conhost.exe

—

ViperRansomware.exe

User:

admin

Company:

Microsoft Corporation

Integrity Level:

HIGH

Description:

Console Window Host

Exit code:

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

6048

"C:\Users\admin\AppData\Local\Temp\Rar$EXa4620.11204\ViperRansomware.exe"

C:\Users\admin\AppData\Local\Temp\Rar$EXa4620.11204\ViperRansomware.exe

WinRAR.exe

User:

admin

Integrity Level:

HIGH

Description:

ConsoleApp1

Exit code:

Version:

1.0.0.0

Modules

Images
c:\users\admin\appdata\local\temp\rar$exa4620.11204\viperransomware.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

7256

"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

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Total events

2 181

Read events

2 173

Write events

Delete events

Modification events


(PID) Process:	(4620) WinRAR.exe	Key:	HKEY_CURRENT_USER\SOFTWARE\WinRAR\ArcHistory
Operation:	write	Name:	3
Value: C:\Users\admin\Desktop\preferences.zip
(PID) Process:	(4620) WinRAR.exe	Key:	HKEY_CURRENT_USER\SOFTWARE\WinRAR\ArcHistory
Operation:	write	Name:	2
Value: C:\Users\admin\Desktop\chromium_ext.zip
(PID) Process:	(4620) 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:	(4620) WinRAR.exe	Key:	HKEY_CURRENT_USER\SOFTWARE\WinRAR\ArcHistory
Operation:	write	Name:	0
Value: C:\Users\admin\Desktop\ViperRansomware.zip
(PID) Process:	(4620) WinRAR.exe	Key:	HKEY_CURRENT_USER\SOFTWARE\WinRAR\FileList\FileColumnWidths
Operation:	write	Name:	name
Value: 120
(PID) Process:	(4620) WinRAR.exe	Key:	HKEY_CURRENT_USER\SOFTWARE\WinRAR\FileList\FileColumnWidths
Operation:	write	Name:	size
Value: 80
(PID) Process:	(4620) WinRAR.exe	Key:	HKEY_CURRENT_USER\SOFTWARE\WinRAR\FileList\FileColumnWidths
Operation:	write	Name:	type
Value: 120
(PID) Process:	(4620) WinRAR.exe	Key:	HKEY_CURRENT_USER\SOFTWARE\WinRAR\FileList\FileColumnWidths
Operation:	write	Name:	mtime
Value: 100

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Executable files

Suspicious files

Text files

114

Unknown types

Dropped files

PID	Process	Filename		Type
6048	ViperRansomware.exe	C:\Users\admin\Viper_README.RW-SK.txt		text
		MD5:D4A9C2AAEE623F4C35F66B55140AC4B8	SHA256:B7C1FF4984DE04352E135A0A3DE7657C59768B4F302F0E5487B46C213319E9B5
6048	ViperRansomware.exe	C:\Users\admin\Desktop\bushprojects.jpg		text
		MD5:1853B92296FF9EE40E905EC167716254	SHA256:A426B068990699D28CD029D0ADE6A49B61B7D37F34BB29EC6D0FC1C1290F352F
6048	ViperRansomware.exe	C:\Users\admin\3D Objects\Viper_README.RW-SK.txt		text
		MD5:D4A9C2AAEE623F4C35F66B55140AC4B8	SHA256:B7C1FF4984DE04352E135A0A3DE7657C59768B4F302F0E5487B46C213319E9B5
6048	ViperRansomware.exe	C:\Users\admin\Contacts\Viper_README.RW-SK.txt		text
		MD5:D4A9C2AAEE623F4C35F66B55140AC4B8	SHA256:B7C1FF4984DE04352E135A0A3DE7657C59768B4F302F0E5487B46C213319E9B5
6048	ViperRansomware.exe	C:\Users\admin\Desktop\infosome.rtf		text
		MD5:1853B92296FF9EE40E905EC167716254	SHA256:A426B068990699D28CD029D0ADE6A49B61B7D37F34BB29EC6D0FC1C1290F352F
6048	ViperRansomware.exe	C:\Users\admin\3D Objects\desktop.ini		text
		MD5:1853B92296FF9EE40E905EC167716254	SHA256:A426B068990699D28CD029D0ADE6A49B61B7D37F34BB29EC6D0FC1C1290F352F
6048	ViperRansomware.exe	C:\Users\admin\Contacts\desktop.ini		text
		MD5:1853B92296FF9EE40E905EC167716254	SHA256:A426B068990699D28CD029D0ADE6A49B61B7D37F34BB29EC6D0FC1C1290F352F
6048	ViperRansomware.exe	C:\Users\admin\Desktop\awardsselect.png		text
		MD5:1853B92296FF9EE40E905EC167716254	SHA256:A426B068990699D28CD029D0ADE6A49B61B7D37F34BB29EC6D0FC1C1290F352F
6048	ViperRansomware.exe	C:\Users\admin\Desktop\desktop.ini		text
		MD5:1853B92296FF9EE40E905EC167716254	SHA256:A426B068990699D28CD029D0ADE6A49B61B7D37F34BB29EC6D0FC1C1290F352F
4620	WinRAR.exe	C:\Users\admin\AppData\Local\Temp\Rar$EXa4620.11204\ViperRansomware.exe		executable
		MD5:5B1DE907E275300FFD9A931CF42D0E36	SHA256:69BB81A8FF5522FDDFA253B908BABCB1D7B745FD2BC70E5CB85F38EE7CE24A1D

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	2.16.168.114:80	http://crl.microsoft.com/pki/crl/products/MicRooCerAut2011_2011_03_22.crl	unknown	—	—	whitelisted
—	—	GET	200	23.219.150.101:80	http://www.microsoft.com/pkiops/crl/MicSecSerCA2011_2011-10-18.crl	unknown	—	—	whitelisted
6544	svchost.exe	GET	200	2.23.77.188:80	http://ocsp.digicert.com/MFEwTzBNMEswSTAJBgUrDgMCGgUABBSAUQYBMq2awn1Rh6Doh%2FsBYgFV7gQUA95QNVbRTLtm8KPiGxvDl7I90VUCEAJ0LqoXyo4hxxe7H%2Fz9DKA%3D	unknown	—	—	whitelisted
7508	SIHClient.exe	GET	200	23.219.150.101:80	http://www.microsoft.com/pkiops/crl/Microsoft%20ECC%20Product%20Root%20Certificate%20Authority%202018.crl	unknown	—	—	whitelisted
7508	SIHClient.exe	GET	200	23.219.150.101:80	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
6544	svchost.exe	40.126.31.129:443	login.live.com	MICROSOFT-CORP-MSN-AS-BLOCK	IE	whitelisted
—	—	4.231.128.59:443	settings-win.data.microsoft.com	MICROSOFT-CORP-MSN-AS-BLOCK	IE	whitelisted
—	—	2.16.168.114:80	crl.microsoft.com	Akamai International B.V.	RU	whitelisted
—	—	23.219.150.101:80	www.microsoft.com	AKAMAI-AS	CL	whitelisted
4	System	192.168.100.255:138	—	—	—	whitelisted
6544	svchost.exe	20.190.159.64:443	login.live.com	MICROSOFT-CORP-MSN-AS-BLOCK	IE	whitelisted
6544	svchost.exe	2.23.77.188:80	ocsp.digicert.com	AKAMAI-AS	DE	whitelisted
3216	svchost.exe	172.211.123.248:443	client.wns.windows.com	MICROSOFT-CORP-MSN-AS-BLOCK	FR	whitelisted
5496	MoUsoCoreWorker.exe	40.127.240.158:443	settings-win.data.microsoft.com	MICROSOFT-CORP-MSN-AS-BLOCK	IE	whitelisted

DNS requests

Domain	IP	Reputation
login.live.com	40.126.31.129 20.190.159.64 20.190.159.128 40.126.31.128 40.126.31.67 20.190.159.129 40.126.31.71 40.126.31.2	whitelisted
google.com	216.58.206.78	whitelisted
settings-win.data.microsoft.com	4.231.128.59 40.127.240.158	whitelisted
crl.microsoft.com	2.16.168.114 2.16.168.124	whitelisted
www.microsoft.com	23.219.150.101	whitelisted
ocsp.digicert.com	2.23.77.188	whitelisted
client.wns.windows.com	172.211.123.248	whitelisted
slscr.update.microsoft.com	20.12.23.50	whitelisted
fe3cr.delivery.mp.microsoft.com	13.95.31.18	whitelisted

Threats

No threats detected

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No debug info

General Info

ViperRansomware.zip

FDC36FA26AD101D8EF6474E93769B0F7

CBC30F4CE19AE39B72F4236384A3C3235C32B779

C1563DC7766670D61C0EC9B0CD263AB9C53EA0D1457B7C2BA778715010828A1D

96:G1BjZnGA8wrMdKSyf2ZN+im4k+sUaMd0MpCJIiHAPdKYU3oc44WIBg0ztmXLW1gL:cn0KJwHRs2eMpSfHAPd4IStKLk8vdn/

Software environment set and analysis options

Launch configuration

Software preset

Hotfixes

Behavior activities

MALICIOUS

Generic archive extractor

RANSOMWARE has been detected

SUSPICIOUS

Reads security settings of Internet Explorer

Write to the desktop.ini file (may be used to cloak folders)

INFO

Checks supported languages

Executable content was dropped or overwritten

Reads the computer name

Reads the machine GUID from the registry

Reads the software policy settings

Manual execution by a user

Reads security settings of Internet Explorer

Malware configuration

Static information

TRiD

EXIF

ZIP

Video and screenshots

Processes

Behavior graph

Specs description

Process information

Information

Modules

Information

Modules

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