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/0ce6f17b-9963-461c-9a37-ee0cff39285c
Verdict:	Malicious activity
Analysis date:	August 17, 2019, 23:39:48
OS:	Windows 7 Professional Service Pack 1 (build: 7601, 32 bit)
Indicators:
MIME:	text/x-c
File info:	C source, Non-ISO extended-ASCII text
MD5:	836A5ABD025D60A7AA8550679DD556C9
SHA1:	A71042308730A358ACB9BCB03A7412B1859320D7
SHA256:	D3F6956E01E2A4BCDBDCE1B41D0F31E546A102DC384FC9E81B9F1D912E099A13
SSDEEP:	192:1p9Tx0wI1TzMjMJDMxMWMDMrMvGMDMRMVM3MeMkl7iv43KNKss5xEDHoZ:1pxiwI1TzcoD+dqE1qyq47MkvkD0

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:: 120 seconds
Heavy Evasion option:: off
Network geolocation:: off
Additional time used:: 60 seconds
MITM proxy:: off
Privacy:: Public submission
Fakenet option:: off
Route via Tor:: off
Autoconfirmation of UAC:: on
Network:: on

Software preset

Internet Explorer 8.0.7601.17514 undefined
Adobe Acrobat Reader DC MUI (15.023.20070)
Adobe Flash Player 26 ActiveX (26.0.0.131)
Adobe Flash Player 26 NPAPI (26.0.0.131)
Adobe Flash Player 26 PPAPI (26.0.0.131)
Adobe Refresh Manager (1.8.0)
CCleaner (5.35)
FileZilla Client 3.36.0 (3.36.0)
Google Chrome (75.0.3770.100)
Google Update Helper (1.3.34.7)
Java 8 Update 92 (8.0.920.14)
Java Auto Updater (2.8.92.14)
Microsoft .NET Framework 4.7.2 (4.7.03062)
Microsoft Office Access MUI (English) 2010 (14.0.6029.1000)
Microsoft Office Access Setup Metadata MUI (English) 2010 (14.0.6029.1000)
Microsoft Office Excel MUI (English) 2010 (14.0.6029.1000)
Microsoft Office OneNote MUI (English) 2010 (14.0.6029.1000)
Microsoft Office Outlook MUI (English) 2010 (14.0.6029.1000)
Microsoft Office PowerPoint MUI (English) 2010 (14.0.6029.1000)
Microsoft Office Professional 2010 (14.0.6029.1000)
Microsoft Office Proof (English) 2010 (14.0.6029.1000)
Microsoft Office Proof (French) 2010 (14.0.6029.1000)
Microsoft Office Proof (Spanish) 2010 (14.0.6029.1000)
Microsoft Office Proofing (English) 2010 (14.0.6029.1000)
Microsoft Office Publisher MUI (English) 2010 (14.0.6029.1000)
Microsoft Office Shared MUI (English) 2010 (14.0.6029.1000)
Microsoft Office Shared Setup Metadata MUI (English) 2010 (14.0.6029.1000)
Microsoft Office Single Image 2010 (14.0.6029.1000)
Microsoft Office Word MUI (English) 2010 (14.0.6029.1000)
Microsoft Visual C++ 2008 Redistributable - x86 9.0.30729.6161 (9.0.30729.6161)
Microsoft Visual C++ 2010 x86 Redistributable - 10.0.40219 (10.0.40219)
Microsoft Visual C++ 2013 Redistributable (x86) - 12.0.30501 (12.0.30501.0)
Microsoft Visual C++ 2013 x86 Additional Runtime - 12.0.21005 (12.0.21005)
Microsoft Visual C++ 2013 x86 Minimum Runtime - 12.0.21005 (12.0.21005)
Microsoft Visual C++ 2015-2019 Redistributable (x86) - 14.21.27702 (14.21.27702.2)
Microsoft Visual C++ 2019 X86 Additional Runtime - 14.21.27702 (14.21.27702)
Microsoft Visual C++ 2019 X86 Minimum Runtime - 14.21.27702 (14.21.27702)
Mozilla Firefox 68.0.1 (x86 en-US) (68.0.1)
Notepad++ (32-bit x86) (7.5.1)
Opera 12.15 (12.15.1748)
Skype version 8.29 (8.29)
Update for Microsoft .NET Framework 4.7.2 (KB4087364) (1)
VLC media player (2.2.6)
WinRAR 5.60 (32-bit) (5.60.0)

Hotfixes

Client LanguagePack Package
Client Refresh LanguagePack Package
CodecPack Basic Package
Foundation Package
IE Troubleshooters Package
InternetExplorer Optional Package
KB2534111
KB2999226
KB4019990
KB976902
LocalPack AU Package
LocalPack CA Package
LocalPack GB Package
LocalPack US Package
LocalPack ZA Package
ProfessionalEdition
UltimateEdition

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MALICIOUS
- Changes the autorun value in the registry
  - WScript.exe (PID: 3500)
SUSPICIOUS
- Executed via COM
  - OUTLOOK.EXE (PID: 3376)
- Changes the started page of IE
  - WScript.exe (PID: 3500)
- Reads Internet Cache Settings
  - OUTLOOK.EXE (PID: 3376)
- Creates files in the program directory
  - WScript.exe (PID: 3500)
INFO
- Reads Microsoft Office registry keys
  - OUTLOOK.EXE (PID: 3376)

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

Monitored processes

Malicious processes

Suspicious processes

Behavior graph

Click at the process to see the details

Process information

PID

CMD

Path

Indicators

Parent process

3376

"C:\Program Files\Microsoft Office\Office14\OUTLOOK.EXE" -Embedding

C:\Program Files\Microsoft Office\Office14\OUTLOOK.EXE

svchost.exe

User:

admin

Company:

Microsoft Corporation

Integrity Level:

MEDIUM

Description:

Microsoft Outlook

Exit code:

Version:

14.0.6025.1000

Modules

Images
c:\program files\microsoft office\office14\outlook.exe
c:\systemroot\system32\ntdll.dll
c:\windows\system32\kernel32.dll
c:\windows\system32\kernelbase.dll
c:\windows\system32\version.dll
c:\windows\system32\msvcrt.dll
c:\windows\winsxs\x86_microsoft.vc90.crt_1fc8b3b9a1e18e3b_9.0.30729.6161_none_50934f2ebcb7eb57\msvcr90.dll
c:\windows\system32\advapi32.dll
c:\windows\system32\sechost.dll
c:\windows\system32\rpcrt4.dll

3500

"C:\Windows\System32\WScript.exe" "C:\Windows\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:

Version:

5.8.7600.16385

Modules

Images
c:\windows\system32\wscript.exe
c:\systemroot\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\lpk.dll
c:\windows\system32\user32.dll

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Total events

673

Read events

572

Write events

Delete events

Modification events


(PID) Process:	(3500) WScript.exe	Key:	HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Run
Operation:	write	Name:	MSKernel
Value: C:\Windows\System32\MSKernel.vbs
(PID) Process:	(3500) WScript.exe	Key:	HKEY_CURRENT_USER\Software\Microsoft\Internet Explorer\Main
Operation:	write	Name:	Start Page
Value: http://www.skyinet.net/~chu/sdgfhjksdfjklNBmnfgkKLHjkqwtuHJBhAFSDGjkhYUgqwerasdjhPhjasfdglkNBhbqwebmznxcbvnmadshfgqw237461234iuy7thjg/WIN-BUGSFIX.exe
(PID) Process:	(3376) OUTLOOK.EXE	Key:	HKEY_CURRENT_USER\Software\Microsoft\Office\14.0\Common\LanguageResources\EnabledLanguages
Operation:	write	Name:	1033
Value: Off
(PID) Process:	(3376) OUTLOOK.EXE	Key:	HKEY_CURRENT_USER\Software\Microsoft\Office\14.0\Common\LanguageResources\EnabledLanguages
Operation:	write	Name:	1033
Value: On
(PID) Process:	(3376) OUTLOOK.EXE	Key:	HKEY_CURRENT_USER\Software\Microsoft\Office\14.0\Outlook\Resiliency\StartupItems
Operation:	write	Name:	%p#
Value: 25702300300D0000010000000000000000000000
(PID) Process:	(3376) OUTLOOK.EXE	Key:	HKEY_CURRENT_USER\Software\Microsoft\Office\14.0\Outlook
Operation:	write	Name:	MTTT
Value: 300D0000EA03E6185555D50100000000
(PID) Process:	(3376) OUTLOOK.EXE	Key:	HKEY_CURRENT_USER\Software\Microsoft\Office\14.0\Outlook\SQM
Operation:	write	Name:	SQMSessionNumber
Value: 0
(PID) Process:	(3376) OUTLOOK.EXE	Key:	HKEY_CURRENT_USER\Software\Microsoft\Office\14.0\Outlook\SQM
Operation:	write	Name:	SQMSessionDate
Value: 220176000
(PID) Process:	(3376) OUTLOOK.EXE	Key:	HKEY_CURRENT_USER\Software\Microsoft\Office\14.0\Outlook\Resiliency\StartupItems
Operation:	delete value	Name:	%p#
Value: 25702300300D0000010000000000000000000000
(PID) Process:	(3376) OUTLOOK.EXE	Key:	HKEY_CURRENT_USER\Software\Microsoft\Office\14.0\Outlook\Resiliency\StartupItems
Operation:	delete key	Name:
Value:

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Executable files

Suspicious files

Text files

Unknown types

Dropped files

PID	Process	Filename		Type
3376	OUTLOOK.EXE	C:\Users\admin\AppData\Local\Temp\CVR9C16.tmp.cvr		—
		MD5:—	SHA256:—
3376	OUTLOOK.EXE	C:\Users\admin\AppData\Local\Microsoft\Outlook\RoamCache\Stream_Calendar_2_4857048C2EB09948A586E3C24A49EBFA.dat		xml
		MD5:B21ED3BD946332FF6EBC41A87776C6BB	SHA256:B1AAC4E817CD10670B785EF8E5523C4A883F44138E50486987DC73054A46F6F4
3500	WScript.exe	C:\Users\admin\AppData\Local\VirtualStore\Windows\System32\RACHUNEK.HTM		html
		MD5:1AE99D33A9E0E90CE1A41DE9D0670B8E	SHA256:0B3DE6841A7C8466917D7D8DB59E937FA343E12EFD0D0EEDA7CCB85B1CA09E65
3376	OUTLOOK.EXE	C:\Users\admin\AppData\Local\Microsoft\Outlook\RoamCache\Stream_WorkHours_1_AE2EEC86770AC84FA6A1EDAAA2C399B2.dat		xml
		MD5:807EF0FC900FEB3DA82927990083D6E7	SHA256:4411E7DC978011222764943081500FFF0E43CBF7CCD44264BD1AB6306CA68913
3376	OUTLOOK.EXE	C:\Users\admin\AppData\Local\Microsoft\Windows\Temporary Internet Files\{58091EA4-B91E-49CD-A33C-4C1958461DAE}\{1C306CB1-771E-4B4B-A902-86E897877F5B}.png		image
		MD5:7D80C0A7E3849818695EAF4989186A3C	SHA256:72DC527D78A8E99331409803811CC2D287E812C008A1C869A6AEA69D7A44B597
3376	OUTLOOK.EXE	C:\Users\admin\AppData\Local\Microsoft\Outlook\RoamCache\Stream_RssRule_2_3DCDCB73047A9F4D9EC3A442AA54EED9.dat		xml
		MD5:D8B37ED0410FB241C283F72B76987F18	SHA256:31E68049F6B7F21511E70CD7F2D95B9CF1354CF54603E8F47C1FC40F40B7A114
3376	OUTLOOK.EXE	C:\Users\admin\AppData\Local\Microsoft\Outlook\RoamCache\Stream_TCPrefs_2_9FFE3C0233D4CE42A8545CF4AB02E461.dat		xml
		MD5:F194B1FA12F9B6F46A47391FAE8BEEC2	SHA256:FCD8D7E030BE6EA7588E5C6CB568E3F1BDFC263942074B693942A27DF9521A74
3376	OUTLOOK.EXE	C:\Users\admin\AppData\Local\Microsoft\Outlook\RoamCache\Stream_ContactPrefs_2_F581DC8621B7D84AB10DDA24797C3F0A.dat		xml
		MD5:BBCF400BD7AE536EB03054021D6A6398	SHA256:383020065C1F31F4FB09F448599A6D5E532C390AF4E5B8AF0771FE17A23222AD
3376	OUTLOOK.EXE	C:\Users\admin\AppData\Local\Microsoft\Outlook\RoamCache\Stream_ConversationPrefs_2_D0B7FB88D7FA3A42BCCFC7828597E7E0.dat		xml
		MD5:57F30B1BCA811C2FCB81F4C13F6A927B	SHA256:612BAD93621991CB09C347FF01EC600B46617247D5C041311FF459E247D8C2D3
3376	OUTLOOK.EXE	C:\Users\admin\AppData\Local\Microsoft\Outlook\mapisvc.inf		text
		MD5:48DD6CAE43CE26B992C35799FCD76898	SHA256:7BFE1F3691E2B4FB4D61FBF5E9F7782FBE49DA1342DBD32201C2CC8E540DBD1A

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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
3376	OUTLOOK.EXE	GET	—	64.4.26.155:80	http://config.messenger.msn.com/config/msgrconfig.asmx?op=GetOlcConfig	US	—	—	whitelisted

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Connections

PID	Process	IP	Domain	ASN	CN	Reputation
3376	OUTLOOK.EXE	64.4.26.155:80	config.messenger.msn.com	Microsoft Corporation	US	whitelisted

DNS requests

Domain	IP	Reputation
config.messenger.msn.com	64.4.26.155	whitelisted

Threats

No threats detected

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No debug info

General Info

VBS.LoveLetter.txt.vbs

836A5ABD025D60A7AA8550679DD556C9

A71042308730A358ACB9BCB03A7412B1859320D7

D3F6956E01E2A4BCDBDCE1B41D0F31E546A102DC384FC9E81B9F1D912E099A13

192:1p9Tx0wI1TzMjMJDMxMWMDMrMvGMDMRMVM3MeMkl7iv43KNKss5xEDHoZ:1pxiwI1TzcoD+dqE1qyq47MkvkD0

Software environment set and analysis options

Launch configuration

Software preset

Hotfixes

Behavior activities

MALICIOUS

Changes the autorun value in the registry

SUSPICIOUS

Executed via COM

Changes the started page of IE

Reads Internet Cache Settings

Creates files in the program directory

INFO

Reads Microsoft Office registry keys

Malware configuration

Static information

Video and screenshots

Processes

Behavior graph

Specs description

Process information

Information

Modules

Information

Modules

Registry activity

Modification events

Files activity

Dropped files

Network activity

HTTP requests

Connections

DNS requests

Threats

Debug output strings