Malware analysis win_old.exe.ensilo Malicious activity

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File name:	win_old.exe.ensilo
Full analysis:	https://app.any.run/tasks/6df04ae7-7e9f-4e3b-9140-ab5093b379a8
Verdict:	Malicious activity
Threats:	LockBit, a ransomware variant, encrypts data on infected machines, demanding a ransom payment for decryption. Used in targeted attacks, It's a significant risk to organizations. 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. Stealers are a group of malicious software that are intended for gaining unauthorized access to users’ information and transferring it to the attacker. The stealer malware category includes various types of programs that focus on their particular kind of data, including files, passwords, and cryptocurrency. Stealers are capable of spying on their targets by recording their keystrokes and taking screenshots. This type of malware is primarily distributed as part of phishing campaigns. Malware Trends Tracker >>>
Analysis date:	April 15, 2025, 19:36:55
OS:	Windows 10 Professional (build: 19044, 64 bit)
Tags:	stealer ransomware lockbit
Indicators:
MIME:	application/vnd.microsoft.portable-executable
File info:	PE32 executable (GUI) Intel 80386, for MS Windows, 6 sections
MD5:	8B3A45EBB7F2331E90AC57A2A20536FD
SHA1:	CE2B0C1D26EBF406B9F258B96BD20BDD604E85C1
SHA256:	93692EDFB8C8901E0C8AEBADC8E458972D7A204053F0EA7C17AF780CAC73EA67
SSDEEP:	3072:smhXodguLP/5qUpfDT6zT73KxYk/m4fcNAozBZmpqR/:kKzo/m4fcNAozCpqR/

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
- Known privilege escalation attack
  - dllhost.exe (PID: 7192)
- Renames files like ransomware
  - win_old.exe.ensilo.exe (PID: 7280)
- RANSOMWARE has been detected
  - win_old.exe.ensilo.exe (PID: 7280)
- Steals credentials from Web Browsers
  - win_old.exe.ensilo.exe (PID: 7280)
- Actions looks like stealing of personal data
  - win_old.exe.ensilo.exe (PID: 7280)
- [YARA] LockBit is detected
  - win_old.exe.ensilo.exe (PID: 7280)
SUSPICIOUS
- Write to the desktop.ini file (may be used to cloak folders)
  - win_old.exe.ensilo.exe (PID: 7280)
- Reads security settings of Internet Explorer
  - ShellExperienceHost.exe (PID: 7656)
INFO
- Reads the computer name
  - win_old.exe.ensilo.exe (PID: 1088)
  - win_old.exe.ensilo.exe (PID: 7280)
  - ShellExperienceHost.exe (PID: 7656)
- Checks supported languages
  - win_old.exe.ensilo.exe (PID: 1088)
  - win_old.exe.ensilo.exe (PID: 7280)
  - ShellExperienceHost.exe (PID: 7656)
- Reads the machine GUID from the registry
  - win_old.exe.ensilo.exe (PID: 1088)
- Reads security settings of Internet Explorer
  - dllhost.exe (PID: 7192)
- Creates files or folders in the user directory
  - win_old.exe.ensilo.exe (PID: 7280)

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

.dll	\|	Win32 Dynamic Link Library (generic) (38.3)
.exe	\|	Win32 Executable (generic) (26.2)
.exe	\|	Win16/32 Executable Delphi generic (12)
.exe	\|	Generic Win/DOS Executable (11.6)
.exe	\|	DOS Executable Generic (11.6)

EXIF

EXE

MachineType:	Intel 386 or later, and compatibles
TimeStamp:	2022:09:09 01:27:01+00:00
ImageFileCharacteristics:	Executable, 32-bit
PEType:	PE32
LinkerVersion:	14.12
CodeSize:	99328
InitializedDataSize:	50688
UninitializedDataSize:	-
EntryPoint:	0x1946f
OSVersion:	5.1
ImageVersion:	-
SubsystemVersion:	5.1
Subsystem:	Windows GUI

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

1088

"C:\Users\admin\AppData\Local\Temp\win_old.exe.ensilo.exe"

C:\Users\admin\AppData\Local\Temp\win_old.exe.ensilo.exe

—

explorer.exe

User:

admin

Integrity Level:

MEDIUM

Exit code:

Modules

Images
c:\users\admin\appdata\local\temp\win_old.exe.ensilo.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\gdi32.dll

7192

C:\WINDOWS\SysWOW64\DllHost.exe /Processid:{3E5FC7F9-9A51-4367-9063-A120244FBEC7}

C:\Windows\SysWOW64\dllhost.exe

svchost.exe

User:

admin

Company:

Microsoft Corporation

Integrity Level:

HIGH

Description:

COM Surrogate

Exit code:

Version:

10.0.19041.3636 (WinBuild.160101.0800)

Modules

Images
c:\windows\syswow64\dllhost.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\ucrtbase.dll
c:\windows\syswow64\combase.dll

7260

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

Exit code:

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

7280

"C:\Users\admin\AppData\Local\Temp\win_old.exe.ensilo.exe"

C:\Users\admin\AppData\Local\Temp\win_old.exe.ensilo.exe

dllhost.exe

User:

admin

Integrity Level:

HIGH

Modules

Images
c:\users\admin\appdata\local\temp\win_old.exe.ensilo.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\gdi32.dll
c:\windows\syswow64\win32u.dll

7320

"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

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

7656

"C:\WINDOWS\SystemApps\ShellExperienceHost_cw5n1h2txyewy\ShellExperienceHost.exe" -ServerName:App.AppXtk181tbxbce2qsex02s8tw7hfxa9xb3t.mca

C:\Windows\SystemApps\ShellExperienceHost_cw5n1h2txyewy\ShellExperienceHost.exe

—

svchost.exe

User:

admin

Company:

Microsoft Corporation

Integrity Level:

MEDIUM

Description:

Windows Shell Experience Host

Version:

10.0.19041.3758 (WinBuild.160101.0800)

Modules

Images
c:\windows\systemapps\shellexperiencehost_cw5n1h2txyewy\shellexperiencehost.exe
c:\windows\system32\ntdll.dll
c:\windows\system32\kernel32.dll
c:\windows\system32\kernelbase.dll
c:\windows\system32\combase.dll
c:\windows\system32\ucrtbase.dll
c:\windows\system32\rpcrt4.dll
c:\windows\system32\oleaut32.dll
c:\windows\system32\msvcp_win.dll
c:\windows\system32\wincorlib.dll

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Total events

2 044

Read events

2 041

Write events

Delete events

Modification events


(PID) Process:	(7192) dllhost.exe	Key:	HKEY_CURRENT_USER\SOFTWARE\Microsoft\Windows\CurrentVersion\Explorer
Operation:	write	Name:	SlowContextMenuEntries
Value: 6024B221EA3A6910A2DC08002B30309D0A010000BD0E0C47735D584D9CEDE91E22E23282770100000114020000000000C0000000000000468D0000006078A409B011A54DAFA526D86198A780390100009AD298B2EDA6DE11BA8CA68E55D895936E000000
(PID) Process:	(7656) ShellExperienceHost.exe	Key:	\REGISTRY\A\{edd0ff9a-46f7-7965-9a61-efec4568dca2}\LocalState
Operation:	write	Name:	PeekBadges
Value: 5B005D0000009C2F82C63DAEDB01
(PID) Process:	(7656) ShellExperienceHost.exe	Key:	\REGISTRY\A\{edd0ff9a-46f7-7965-9a61-efec4568dca2}\LocalState
Operation:	write	Name:	PeekBadges
Value: 5B005D0000007B9484C63DAEDB01

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Executable files

Suspicious files

387

Text files

398

Unknown types

Dropped files

PID	Process	Filename		Type
7280	win_old.exe.ensilo.exe	C:\8EHvbWVkC.README.txt		text
		MD5:5F71A5EA8BE73A0112C0F2444A80E1C3	SHA256:3064980F19DBBD64EBF656DDAEFD330A14D9B70942260954CA582CB6DEB57DF3
7280	win_old.exe.ensilo.exe	C:\$Recycle.Bin\S-1-5-18\AAAAAAAAAAA		binary
		MD5:D3EF496C5E5B8E2D061F2704D7C22EBF	SHA256:67903014A96A32E86F45F6B7A638011B82525948D44C15D939AD6598D3DDBA43
7280	win_old.exe.ensilo.exe	C:\$Recycle.Bin\S-1-5-18\CCCCCCCCCCC		binary
		MD5:D3EF496C5E5B8E2D061F2704D7C22EBF	SHA256:67903014A96A32E86F45F6B7A638011B82525948D44C15D939AD6598D3DDBA43
7280	win_old.exe.ensilo.exe	C:\$Recycle.Bin\S-1-5-18\BBBBBBBBBBB		binary
		MD5:D3EF496C5E5B8E2D061F2704D7C22EBF	SHA256:67903014A96A32E86F45F6B7A638011B82525948D44C15D939AD6598D3DDBA43
7280	win_old.exe.ensilo.exe	C:\$Recycle.Bin\S-1-5-18\desktop.ini		binary
		MD5:D3EF496C5E5B8E2D061F2704D7C22EBF	SHA256:67903014A96A32E86F45F6B7A638011B82525948D44C15D939AD6598D3DDBA43
7280	win_old.exe.ensilo.exe	C:\$Recycle.Bin\S-1-5-18\GGGGGGGGGGG		binary
		MD5:D3EF496C5E5B8E2D061F2704D7C22EBF	SHA256:67903014A96A32E86F45F6B7A638011B82525948D44C15D939AD6598D3DDBA43
7280	win_old.exe.ensilo.exe	C:\$Recycle.Bin\S-1-5-18\FFFFFFFFFFF		binary
		MD5:D3EF496C5E5B8E2D061F2704D7C22EBF	SHA256:67903014A96A32E86F45F6B7A638011B82525948D44C15D939AD6598D3DDBA43
7280	win_old.exe.ensilo.exe	C:\$Recycle.Bin\S-1-5-18\DDDDDDDDDDD		binary
		MD5:D3EF496C5E5B8E2D061F2704D7C22EBF	SHA256:67903014A96A32E86F45F6B7A638011B82525948D44C15D939AD6598D3DDBA43
7280	win_old.exe.ensilo.exe	C:\$Recycle.Bin\S-1-5-18\JJJJJJJJJJJ		binary
		MD5:D3EF496C5E5B8E2D061F2704D7C22EBF	SHA256:67903014A96A32E86F45F6B7A638011B82525948D44C15D939AD6598D3DDBA43
7280	win_old.exe.ensilo.exe	C:\$Recycle.Bin\S-1-5-18\NNNNNNNNNNN		binary
		MD5:D3EF496C5E5B8E2D061F2704D7C22EBF	SHA256:67903014A96A32E86F45F6B7A638011B82525948D44C15D939AD6598D3DDBA43

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	23.48.23.147:80	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

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Connections

PID	Process	IP	Domain	ASN	CN	Reputation
2104	svchost.exe	40.127.240.158:443	—	MICROSOFT-CORP-MSN-AS-BLOCK	IE	unknown
4	System	192.168.100.255:138	—	—	—	whitelisted
—	—	40.127.240.158:443	—	MICROSOFT-CORP-MSN-AS-BLOCK	IE	unknown
—	—	23.48.23.147:80	crl.microsoft.com	Akamai International B.V.	DE	whitelisted
3216	svchost.exe	172.211.123.248:443	client.wns.windows.com	MICROSOFT-CORP-MSN-AS-BLOCK	FR	whitelisted
6544	svchost.exe	40.126.32.138:443	login.live.com	MICROSOFT-CORP-MSN-AS-BLOCK	NL	whitelisted
6544	svchost.exe	2.17.190.73:80	ocsp.digicert.com	AKAMAI-AS	DE	whitelisted
4	System	192.168.100.255:137	—	—	—	whitelisted

DNS requests

Domain	IP	Reputation
google.com	142.250.185.78	whitelisted
crl.microsoft.com	23.48.23.147 23.48.23.141 23.48.23.150 23.48.23.193 23.48.23.139 23.48.23.140 23.48.23.158 23.48.23.164 23.48.23.194	whitelisted
client.wns.windows.com	172.211.123.248	whitelisted
login.live.com	40.126.32.138 40.126.32.72 20.190.160.66 20.190.160.17 20.190.160.22 20.190.160.131 20.190.160.20 20.190.160.65	whitelisted
ocsp.digicert.com	2.17.190.73	whitelisted

Threats

No threats detected

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No debug info

General Info

win_old.exe.ensilo

8B3A45EBB7F2331E90AC57A2A20536FD

CE2B0C1D26EBF406B9F258B96BD20BDD604E85C1

93692EDFB8C8901E0C8AEBADC8E458972D7A204053F0EA7C17AF780CAC73EA67

3072:smhXodguLP/5qUpfDT6zT73KxYk/m4fcNAozBZmpqR/:kKzo/m4fcNAozCpqR/

Software environment set and analysis options

Launch configuration

Software preset

Hotfixes

Behavior activities

MALICIOUS

Known privilege escalation attack

Renames files like ransomware

RANSOMWARE has been detected

Steals credentials from Web Browsers

Actions looks like stealing of personal data

[YARA] LockBit is detected

SUSPICIOUS

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

Reads security settings of Internet Explorer

INFO

Reads the computer name

Checks supported languages

Reads the machine GUID from the registry

Reads security settings of Internet Explorer

Creates files or folders in the user directory

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

Information

Modules

Registry activity

Modification events

Files activity

Dropped files

Network activity

HTTP requests

Connections

DNS requests

Threats

Debug output strings