Malware analysis VBS.LoveLetter.txt.vbs Malicious activity

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File name:	VBS.LoveLetter.txt.vbs
Full analysis:	https://app.any.run/tasks/078990a4-08a7-4c0a-bf3c-96f131d34adc
Verdict:	Malicious activity
Analysis date:	July 24, 2024, 22:34:48
OS:	Windows 10 Professional (build: 19045, 64 bit)
Indicators:
MIME:	text/x-c
File info:	C source, Non-ISO extended-ASCII text
MD5:	836A5ABD025D60A7AA8550679DD556C9
SHA1:	A71042308730A358ACB9BCB03A7412B1859320D7
SHA256:	D3F6956E01E2A4BCDBDCE1B41D0F31E546A102DC384FC9E81B9F1D912E099A13
SSDEEP:	192:1p9Tx0wI1TzMjMJDMxMWMDMrMvGMDMRMVM3MeMkl7iI243aNKss5xEDHoZ:1pxiwI1TzcoD+dqE1qyq47Mk9kD0

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
- Deletes a file (SCRIPT)
  - wscript.exe (PID: 3384)
- Modifies registry startup key (SCRIPT)
  - wscript.exe (PID: 3384)
- Creates a new registry key or changes the value of an existing one (SCRIPT)
  - wscript.exe (PID: 3384)
SUSPICIOUS
- Reads data from a binary Stream object (SCRIPT)
  - wscript.exe (PID: 3384)
- Runs shell command (SCRIPT)
  - wscript.exe (PID: 3384)
- Gets a collection of all available drive names (SCRIPT)
  - wscript.exe (PID: 3384)
- Gets the drive type (SCRIPT)
  - wscript.exe (PID: 3384)
- Changes the Home page of Internet Explorer
  - wscript.exe (PID: 3384)
- Changes the title of the Internet Explorer window
  - wscript.exe (PID: 3384)
- Executes application which crashes
  - wscript.exe (PID: 3384)
- Creates FileSystem object to access computer's file system (SCRIPT)
  - wscript.exe (PID: 3384)
- Gets full path of the running script (SCRIPT)
  - wscript.exe (PID: 3384)
INFO
- Checks proxy server information
  - slui.exe (PID: 6696)
- Reads the software policy settings
  - slui.exe (PID: 6696)

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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No data.

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All screenshots are available in the full report

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Total processes

142

Monitored processes

Malicious processes

Suspicious processes

Behavior graph

Click at the process to see the details

Process information

PID

CMD

Path

Indicators

Parent process

3384

"C:\WINDOWS\System32\WScript.exe" C:\Users\admin\AppData\Local\Temp\VBS.LoveLetter.txt.vbs

C:\Windows\System32\wscript.exe

explorer.exe

User:

admin

Company:

Microsoft Corporation

Integrity Level:

MEDIUM

Description:

Microsoft ® Windows Based Script Host

Exit code:

3221225477

Version:

5.812.10240.16384

Modules

Images
c:\windows\system32\wscript.exe
c:\windows\system32\ntdll.dll
c:\windows\system32\kernel32.dll
c:\windows\system32\kernelbase.dll
c:\windows\system32\msvcrt.dll
c:\windows\system32\oleaut32.dll
c:\windows\system32\msvcp_win.dll
c:\windows\system32\ucrtbase.dll
c:\windows\system32\combase.dll
c:\windows\system32\rpcrt4.dll

4188

"C:\Program Files\Microsoft Office\Root\Office16\OUTLOOK.EXE" -Embedding

C:\Program Files\Microsoft Office\root\Office16\OUTLOOK.EXE

svchost.exe

User:

admin

Company:

Microsoft Corporation

Integrity Level:

MEDIUM

Description:

Microsoft Outlook

Exit code:

Version:

16.0.16026.20146

Modules

Images
c:\program files\microsoft office\root\office16\outlook.exe
c:\windows\system32\ntdll.dll
c:\windows\system32\kernel32.dll
c:\windows\system32\kernelbase.dll
c:\windows\system32\apphelp.dll
c:\windows\system32\ucrtbase.dll
c:\windows\system32\advapi32.dll
c:\windows\system32\msvcrt.dll
c:\windows\system32\sechost.dll
c:\windows\system32\rpcrt4.dll

6696

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

7160

C:\WINDOWS\system32\WerFault.exe -u -p 3384 -s 980

C:\Windows\System32\WerFault.exe

—

wscript.exe

User:

admin

Company:

Microsoft Corporation

Integrity Level:

MEDIUM

Description:

Windows Problem Reporting

Exit code:

Version:

10.0.19041.1 (WinBuild.160101.0800)

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Total events

7 619

Read events

7 302

Write events

288

Delete events

Modification events


(PID) Process:	(3384) wscript.exe	Key:	HKEY_CURRENT_USER\SOFTWARE\Microsoft\Internet Explorer\Main
Operation:	write	Name:	Start Page
Value: www.o2.pl
(PID) Process:	(4188) OUTLOOK.EXE	Key:	HKEY_CURRENT_USER\SOFTWARE\Microsoft\Office\Common\ClientTelemetry\Sampling
Operation:	write	Name:	6
Value: 01941A000000001000B24E9A3E05000000000000000500000000000000
(PID) Process:	(4188) OUTLOOK.EXE	Key:	HKEY_CURRENT_USER\SOFTWARE\Microsoft\Office\Common\CrashPersistence\OUTLOOK\4188
Operation:	write	Name:	0
Value: 0B0E10321BF4BF971187469081212A66965F22230046B7F887AA9BC3B7ED016A04102400449A7D64B29D01008500A907556E6B6E6F776EC906022222CA0DC2190000C91003783634C511DC20D2120B6F00750074006C006F006F006B002E00650078006500C51620C517808004C91808323231322D44656300
(PID) Process:	(4188) OUTLOOK.EXE	Key:	HKEY_CURRENT_USER\SOFTWARE\Microsoft\Office\16.0\Outlook\Diagnostics
Operation:	delete value	Name:	BootCommand
Value:
(PID) Process:	(4188) OUTLOOK.EXE	Key:	HKEY_CURRENT_USER\SOFTWARE\Microsoft\Office\16.0\Common\LanguageResources\EnabledEditingLanguages
Operation:	write	Name:	en-US
Value: 2
(PID) Process:	(4188) OUTLOOK.EXE	Key:	HKEY_CURRENT_USER\SOFTWARE\Microsoft\Office\16.0\Common\LanguageResources
Operation:	write	Name:	UISnapshotLanguages
Value: de-de;en-us;es-es;fr-fr;it-it;ja-jp;ko-kr;pt-br;ru-ru;tr-tr
(PID) Process:	(4188) OUTLOOK.EXE	Key:	HKEY_CURRENT_USER\SOFTWARE\Microsoft\Office\16.0\Common\LanguageResources\EnabledEditingLanguages
Operation:	write	Name:	en-US
Value: 1
(PID) Process:	(4188) OUTLOOK.EXE	Key:	HKEY_CURRENT_USER\SOFTWARE\Microsoft\Office\16.0\Common\LanguageResources\EnabledEditingLanguages
Operation:	write	Name:	de-de
Value: 1
(PID) Process:	(4188) OUTLOOK.EXE	Key:	HKEY_CURRENT_USER\SOFTWARE\Microsoft\Office\16.0\Common\LanguageResources\EnabledEditingLanguages
Operation:	write	Name:	es-es
Value: 1
(PID) Process:	(4188) OUTLOOK.EXE	Key:	HKEY_CURRENT_USER\SOFTWARE\Microsoft\Office\16.0\Common\LanguageResources\EnabledEditingLanguages
Operation:	write	Name:	fr-fr
Value: 1

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Executable files

Suspicious files

Text files

Unknown types

Dropped files

PID	Process	Filename		Type
4188	OUTLOOK.EXE	C:\Users\admin\Documents\Outlook Files\Outlook1.pst		—
		MD5:—	SHA256:—
7160	WerFault.exe	C:\ProgramData\Microsoft\Windows\WER\ReportArchive\AppCrash_WScript.exe_a4b8af2d183afea7fd6e13de5b147874c8d2939_debcac4a_ac930c47-e819-4b1e-8b9b-9cfc5cd91f61\Report.wer		—
		MD5:—	SHA256:—
4188	OUTLOOK.EXE	C:\Users\admin\AppData\Local\Microsoft\Office\16.0\AddInClassifierCache\OfficeSharedEntities.bin		text
		MD5:CC90D669144261B198DEAD45AA266572	SHA256:89C701EEFF939A44F28921FD85365ECD87041935DCD0FE0BAF04957DA12C9899
4188	OUTLOOK.EXE	C:\Users\admin\AppData\Local\Microsoft\Office\16.0\AddInClassifierCache\OfficeSharedEntitiesUpdated.bin		text
		MD5:4FDF4602F6275311BA2A674D542C79C2	SHA256:D5AEAFB5376AFD3FFD858A3A9049F2CF2B40454347CD7811DCD5BFBDE20AA9E5
4188	OUTLOOK.EXE	C:\Users\admin\AppData\Local\Microsoft\TokenBroker\Cache\56a61aeb75d8f5be186c26607f4bb213abe7c5ec.tbres		binary
		MD5:6F93EDE360B0D6810B4E3E04D34C4915	SHA256:CD63D02281264B640AEC1751A23096F5BD77C0AD9531F084CAEF28CA786F76BF
4188	OUTLOOK.EXE	C:\Users\admin\AppData\LocalLow\Microsoft\CryptnetUrlCache\Content\E2C6CBAF0AF08CF203BA74BF0D0AB6D5_6372E0472AFF76BB926C97818BC773B9		der
		MD5:94351CB105884B824E9778D0DDED1C64	SHA256:B67FD799051EC989F549F50EBE37D5EB7A81AD311E0017806D93A138EB4525EF
4188	OUTLOOK.EXE	C:\Users\admin\AppData\Local\Microsoft\TokenBroker\Cache\089d66ba04a8cec4bdc5267f42f39cf84278bb67.tbres		binary
		MD5:C4E1B38941D5D40C7B541376B2764258	SHA256:9D1B93FA150F9B88A1C89AC4658726D59109478B09EFC5A7C5CE374416A4D305
4188	OUTLOOK.EXE	C:\Users\admin\AppData\Local\Microsoft\TokenBroker\Cache\5475cb191e478c39370a215b2da98a37e9dc813d.tbres		binary
		MD5:57CA3E4F02E09BD013B37348FDD063A8	SHA256:2AABCA32DAF01E75E9D0AA294548B29E3877A56E0D4D850B6330E2C37FD81A20
7160	WerFault.exe	C:\Users\admin\AppData\Local\CrashDumps\wscript.exe.3384.dmp		binary
		MD5:AB137AB30D11F44FC3F3F8B653BCF447	SHA256:D4BBF681DFEEA1233BDC6FF0E9AAF8BCFD448BD7A38DF6E7F49375156D760505
7160	WerFault.exe	C:\ProgramData\Microsoft\Windows\WER\Temp\WERBEAA.tmp.xml		xml
		MD5:57C3C75F7B49053BA8D6257B00DE6775	SHA256:23A60DADAB43416E34D146E7780DD9286E27BB86FFBAD198B65B3A474E2725C7

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
5272	svchost.exe	GET	200	192.229.221.95:80	http://ocsp.digicert.com/MFEwTzBNMEswSTAJBgUrDgMCGgUABBSAUQYBMq2awn1Rh6Doh%2FsBYgFV7gQUA95QNVbRTLtm8KPiGxvDl7I90VUCEAJ0LqoXyo4hxxe7H%2Fz9DKA%3D	unknown	—	—	whitelisted
5368	SearchApp.exe	GET	200	192.229.221.95:80	http://ocsp.digicert.com/MFEwTzBNMEswSTAJBgUrDgMCGgUABBTrjrydRyt%2BApF3GSPypfHBxR5XtQQUs9tIpPmhxdiuNkHMEWNpYim8S8YCEAI5PUjXAkJafLQcAAsO18o%3D	unknown	—	—	whitelisted
4188	OUTLOOK.EXE	GET	200	192.229.221.95:80	http://ocsp.digicert.com/MFEwTzBNMEswSTAJBgUrDgMCGgUABBQ50otx%2Fh0Ztl%2Bz8SiPI7wEWVxDlQQUTiJUIBiV5uNu5g%2F6%2BrkS7QYXjzkCEA77flR%2B3w%2FxBpruV2lte6A%3D	unknown	—	—	whitelisted
1324	backgroundTaskHost.exe	GET	200	192.229.221.95:80	http://ocsp.digicert.com/MFEwTzBNMEswSTAJBgUrDgMCGgUABBQ50otx%2Fh0Ztl%2Bz8SiPI7wEWVxDlQQUTiJUIBiV5uNu5g%2F6%2BrkS7QYXjzkCEAn5bsKVVV8kdJ6vHl3O1J0%3D	unknown	—	—	whitelisted
4188	OUTLOOK.EXE	GET	200	192.229.221.95:80	http://ocsp.digicert.com/MFEwTzBNMEswSTAJBgUrDgMCGgUABBQ50otx%2Fh0Ztl%2Bz8SiPI7wEWVxDlQQUTiJUIBiV5uNu5g%2F6%2BrkS7QYXjzkCEAn5bsKVVV8kdJ6vHl3O1J0%3D	unknown	—	—	whitelisted
—	—	GET	200	192.229.221.95:80	http://ocsp.digicert.com/MFEwTzBNMEswSTAJBgUrDgMCGgUABBQ50otx%2Fh0Ztl%2Bz8SiPI7wEWVxDlQQUTiJUIBiV5uNu5g%2F6%2BrkS7QYXjzkCEAn5bsKVVV8kdJ6vHl3O1J0%3D	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	192.168.100.255:138	—	—	—	whitelisted
6012	MoUsoCoreWorker.exe	51.124.78.146:443	settings-win.data.microsoft.com	MICROSOFT-CORP-MSN-AS-BLOCK	NL	whitelisted
3212	RUXIMICS.exe	51.124.78.146:443	settings-win.data.microsoft.com	MICROSOFT-CORP-MSN-AS-BLOCK	NL	whitelisted
3076	svchost.exe	51.124.78.146:443	settings-win.data.microsoft.com	MICROSOFT-CORP-MSN-AS-BLOCK	NL	whitelisted
—	—	4.209.33.156:443	—	MICROSOFT-CORP-MSN-AS-BLOCK	US	unknown
4512	slui.exe	40.91.76.224:443	activation-v2.sls.microsoft.com	MICROSOFT-CORP-MSN-AS-BLOCK	US	whitelisted
3952	svchost.exe	239.255.255.250:1900	—	—	—	whitelisted
6696	slui.exe	40.91.76.224:443	activation-v2.sls.microsoft.com	MICROSOFT-CORP-MSN-AS-BLOCK	US	whitelisted
4188	OUTLOOK.EXE	52.113.194.132:443	ecs.office.com	MICROSOFT-CORP-MSN-AS-BLOCK	US	unknown
4188	OUTLOOK.EXE	23.48.23.18:443	omex.cdn.office.net	Akamai International B.V.	DE	unknown

DNS requests

Domain	IP	Reputation
settings-win.data.microsoft.com	51.124.78.146 20.73.194.208	whitelisted
google.com	172.217.23.110	whitelisted
activation-v2.sls.microsoft.com	40.91.76.224	whitelisted
ecs.office.com	52.113.194.132	whitelisted
omex.cdn.office.net	23.48.23.18 23.48.23.30	whitelisted
www.bing.com	104.126.37.131 104.126.37.170 104.126.37.160 104.126.37.186 104.126.37.128 104.126.37.139 104.126.37.185 104.126.37.178 104.126.37.137	whitelisted
login.live.com	40.126.31.67 20.190.159.75 20.190.159.71 20.190.159.2 40.126.31.71 20.190.159.4 20.190.159.64 20.190.159.0	whitelisted
ocsp.digicert.com	192.229.221.95	whitelisted
roaming.officeapps.live.com	52.109.89.19	whitelisted
client.wns.windows.com	40.113.110.67	whitelisted

Threats

No threats detected

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No debug info

General Info

VBS.LoveLetter.txt.vbs

836A5ABD025D60A7AA8550679DD556C9

A71042308730A358ACB9BCB03A7412B1859320D7

D3F6956E01E2A4BCDBDCE1B41D0F31E546A102DC384FC9E81B9F1D912E099A13

192:1p9Tx0wI1TzMjMJDMxMWMDMrMvGMDMRMVM3MeMkl7iI243aNKss5xEDHoZ:1pxiwI1TzcoD+dqE1qyq47Mk9kD0

Software environment set and analysis options

Launch configuration

Software preset

Hotfixes

Behavior activities

MALICIOUS

Deletes a file (SCRIPT)

Modifies registry startup key (SCRIPT)

Creates a new registry key or changes the value of an existing one (SCRIPT)

SUSPICIOUS

Reads data from a binary Stream object (SCRIPT)

Runs shell command (SCRIPT)

Gets a collection of all available drive names (SCRIPT)

Gets the drive type (SCRIPT)

Changes the Home page of Internet Explorer

Changes the title of the Internet Explorer window

Executes application which crashes

Creates FileSystem object to access computer's file system (SCRIPT)

Gets full path of the running script (SCRIPT)

INFO

Checks proxy server information

Reads the software policy settings

Malware configuration

Static information

Video and screenshots

Processes

Behavior graph

Specs description

Process information

Information

Modules

Information

Modules

Information

Modules

Information

Registry activity

Modification events

Files activity

Dropped files

Network activity

HTTP requests

Connections

DNS requests

Threats

Debug output strings