Malware analysis MACRO-DFIR-RETO.xls Malicious activity

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File name:	MACRO-DFIR-RETO.xls
Full analysis:	https://app.any.run/tasks/20e179ea-2dfc-490c-89c5-fad40a5a16b9
Verdict:	Malicious activity
Analysis date:	September 20, 2024, 17:59:43
OS:	Windows 10 Professional (build: 19045, 64 bit)
Tags:	macros40
Indicators:
MIME:	application/vnd.ms-excel
File info:	CDFV2 Microsoft Excel
MD5:	CD1D5DCB90901299B28FF9201426DECD
SHA1:	E950AB3DF7BE673792F14EBE334EBA3EAD54DF5E
SHA256:	B7DFFB5ADF108DBAC3890D1D0292334B7CAFBAB508141F5A45C8AE21722B87DE
SSDEEP:	1536:AsssHQHYtrypIh12lcz6xQv+tkbCZ43GVMjKB0/ShPr5Tl7RTFLJD17xDVL5zF7x:suDiEB2995AInPMEbnAh2jV

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
- Registers / Runs the DLL via REGSVR32.EXE
  - EXCEL.EXE (PID: 3972)
- Unusual execution from MS Office
  - EXCEL.EXE (PID: 3972)
SUSPICIOUS
No suspicious indicators.
INFO
No info indicators.

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

.xls	\|	Microsoft Excel sheet (78.9)

EXIF

FlashPix

CodePage:	Windows Latin 1 (Western European)
Company:	-
ScaleCrop:	No
LinksUpToDate:	No
TitleOfParts:	Doc1 Doc2 Doc3 Doc4
HeadingPairs:	Worksheets 1 Excel 4.0 Macros 3

No data.

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All screenshots are available in the full report

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Total processes

137

Monitored processes

Malicious processes

Suspicious processes

Behavior graph

Click at the process to see the details

Process information

PID

CMD

Path

Indicators

Parent process

1116

"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

2376

regsvr32 -s ..\iroto1.dll

C:\Windows\System32\regsvr32.exe

—

EXCEL.EXE

User:

admin

Company:

Microsoft Corporation

Integrity Level:

MEDIUM

Description:

Microsoft(C) Register Server

Exit code:

Version:

10.0.19041.1 (WinBuild.160101.0800)

Modules

Images
c:\windows\system32\regsvr32.exe
c:\windows\system32\ntdll.dll
c:\windows\system32\kernel32.dll
c:\windows\system32\kernelbase.dll
c:\windows\system32\apphelp.dll
c:\windows\system32\aclayers.dll
c:\windows\system32\msvcrt.dll
c:\windows\system32\user32.dll
c:\windows\system32\win32u.dll
c:\windows\system32\gdi32.dll

2960

regsvr32 -s ..\iroto.dll

C:\Windows\System32\regsvr32.exe

—

EXCEL.EXE

User:

admin

Company:

Microsoft Corporation

Integrity Level:

MEDIUM

Description:

Microsoft(C) Register Server

Exit code:

Version:

10.0.19041.1 (WinBuild.160101.0800)

Modules

Images
c:\windows\system32\regsvr32.exe
c:\windows\system32\ntdll.dll
c:\windows\system32\kernel32.dll
c:\windows\system32\kernelbase.dll
c:\windows\system32\apphelp.dll
c:\windows\system32\aclayers.dll
c:\windows\system32\msvcrt.dll
c:\windows\system32\user32.dll
c:\windows\system32\win32u.dll
c:\windows\system32\gdi32.dll

3972

"C:\Program Files\Microsoft Office\Root\Office16\EXCEL.EXE" C:\Users\admin\AppData\Local\Temp\MACRO-DFIR-RETO.xls

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

explorer.exe

User:

admin

Company:

Microsoft Corporation

Integrity Level:

MEDIUM

Description:

Microsoft Excel

Version:

16.0.16026.20146

Modules

Images
c:\program files\microsoft office\root\office16\excel.exe
c:\windows\system32\ntdll.dll
c:\windows\system32\kernel32.dll
c:\windows\system32\kernelbase.dll
c:\windows\system32\apphelp.dll
c:\windows\system32\ole32.dll
c:\windows\system32\ucrtbase.dll
c:\windows\system32\rpcrt4.dll
c:\windows\system32\combase.dll
c:\windows\system32\gdi32.dll

6588

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

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Total events

6 278

Read events

6 042

Write events

218

Delete events

Modification events


(PID) Process:	(3972) EXCEL.EXE	Key:	HKEY_CURRENT_USER\SOFTWARE\Microsoft\Office\Common\ClientTelemetry\Sampling
Operation:	write	Name:	1
Value: 01D014000000001000B24E9A3E02000000000000000600000000000000
(PID) Process:	(3972) EXCEL.EXE	Key:	HKEY_CURRENT_USER\SOFTWARE\Microsoft\Office\Common\CrashPersistence\EXCEL\3972
Operation:	write	Name:	0
Value: 0B0E103A56E8CC69AD4D43A70C633F988046B7230046F9CFBEC5EEF0C2ED016A04102400449A7D64B29D01008500A907556E6B6E6F776EC906022222CA0DC2190000C91003783634C511841FD2120965007800630065006C002E00650078006500C51620C517808004C91808323231322D44656300
(PID) Process:	(3972) EXCEL.EXE	Key:	HKEY_CURRENT_USER\SOFTWARE\Microsoft\Office\16.0\Common\LanguageResources\EnabledEditingLanguages
Operation:	write	Name:	en-US
Value: 2
(PID) Process:	(3972) EXCEL.EXE	Key:	HKEY_CURRENT_USER\SOFTWARE\Microsoft\Office\16.0\Common\LanguageResources\EnabledEditingLanguages
Operation:	write	Name:	de-de
Value: 2
(PID) Process:	(3972) EXCEL.EXE	Key:	HKEY_CURRENT_USER\SOFTWARE\Microsoft\Office\16.0\Common\LanguageResources\EnabledEditingLanguages
Operation:	write	Name:	fr-fr
Value: 2
(PID) Process:	(3972) EXCEL.EXE	Key:	HKEY_CURRENT_USER\SOFTWARE\Microsoft\Office\16.0\Common\LanguageResources\EnabledEditingLanguages
Operation:	write	Name:	es-es
Value: 2
(PID) Process:	(3972) EXCEL.EXE	Key:	HKEY_CURRENT_USER\SOFTWARE\Microsoft\Office\16.0\Common\LanguageResources\EnabledEditingLanguages
Operation:	write	Name:	it-it
Value: 2
(PID) Process:	(3972) EXCEL.EXE	Key:	HKEY_CURRENT_USER\SOFTWARE\Microsoft\Office\16.0\Common\LanguageResources\EnabledEditingLanguages
Operation:	write	Name:	ja-jp
Value: 2
(PID) Process:	(3972) EXCEL.EXE	Key:	HKEY_CURRENT_USER\SOFTWARE\Microsoft\Office\16.0\Common\LanguageResources\EnabledEditingLanguages
Operation:	write	Name:	ko-kr
Value: 2
(PID) Process:	(3972) EXCEL.EXE	Key:	HKEY_CURRENT_USER\SOFTWARE\Microsoft\Office\16.0\Common\LanguageResources\EnabledEditingLanguages
Operation:	write	Name:	pt-br
Value: 2

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Executable files

Suspicious files

Text files

Unknown types

Dropped files

PID	Process	Filename		Type
3972	EXCEL.EXE	C:\Users\admin\AppData\Local\Microsoft\TokenBroker\Cache\56a61aeb75d8f5be186c26607f4bb213abe7c5ec.tbres		binary
		MD5:212523BA3F8ED13C562A427D6196959E	SHA256:0A8B3679F533C6CD029078041A6E016A370033EACACE617952AA5D0BA5F13DFE
3972	EXCEL.EXE	C:\Users\admin\AppData\Local\Microsoft\Office\16.0\UsageMetricsStore\FileActivityStoreV3\Excel\ASkwMDAwMDAwMC0wMDAwLTAwMDAtMDAwMC0wMDAwMDAwMDAwMDBfTnVsbAA.S		binary
		MD5:C3724D9122F1265EA1EFD788DA12A943	SHA256:35EC65C8C5DC029D05A8530BBAA5DE2EE269B457CBB26E3AE02A450017FA0B02
3972	EXCEL.EXE	C:\Users\admin\AppData\Roaming\Microsoft\Windows\Recent\CustomDestinations\b8ab77100df80ab2.customDestinations-ms		binary
		MD5:4FCB2A3EE025E4A10D21E1B154873FE2	SHA256:90BF6BAA6F968A285F88620FBF91E1F5AA3E66E2BAD50FD16F37913280AD8228
3972	EXCEL.EXE	C:\Users\admin\AppData\LocalLow\Microsoft\CryptnetUrlCache\MetaData\103621DE9CD5414CC2538780B4B75751		binary
		MD5:3DFCA46E00FFA4795C72A41375F159D3	SHA256:DCBA1A505396539BAC40A7253C9F5DCCF06CBB79957E21D56305E1FC3AF5F40E
3972	EXCEL.EXE	C:\Users\admin\AppData\Local\Microsoft\TokenBroker\Cache\089d66ba04a8cec4bdc5267f42f39cf84278bb67.tbres		binary
		MD5:134C336137CAAFD3A6826D815CFC20D8	SHA256:9E94BDD7AFE899363FD56CCCF20EB742E03E56B223A81C05D6F681D8D84C1195
3972	EXCEL.EXE	C:\Users\admin\AppData\Local\Microsoft\Office\16.0\WebServiceCache\AllUsers\officeclient.microsoft.com\3D44A11A-5854-409E-932D-3464C7AC6DAA		xml
		MD5:9AD275311B10431A9AF141907A2B0E64	SHA256:0ABEF7FF15D7F7AE9135A562FF17B5D650814476495F4D649B4E35FA28817E20
3972	EXCEL.EXE	C:\Users\admin\AppData\Roaming\Microsoft\Windows\Recent\CustomDestinations\CKSBGK48U0PX2H01YIO2.temp		binary
		MD5:4FCB2A3EE025E4A10D21E1B154873FE2	SHA256:90BF6BAA6F968A285F88620FBF91E1F5AA3E66E2BAD50FD16F37913280AD8228
3972	EXCEL.EXE	C:\Users\admin\AppData\LocalLow\Microsoft\CryptnetUrlCache\MetaData\E2C6CBAF0AF08CF203BA74BF0D0AB6D5_0FB9553B978E7F00C6B2309507DEB64A		binary
		MD5:D8514A55C1DE38EEBB170BFA29EC9DB9	SHA256:5D3F556417D73628B29CF2FDEC0B981662254FC03E37DD77DB5AA90A11016C60
3972	EXCEL.EXE	C:\Users\admin\AppData\LocalLow\Microsoft\CryptnetUrlCache\Content\E2C6CBAF0AF08CF203BA74BF0D0AB6D5_0FB9553B978E7F00C6B2309507DEB64A		binary
		MD5:0D9261D6BD959AC304A4B49E916BC4E6	SHA256:62268DE57E7D604D9126DC07C61B1B544956412F89B31110A72669F79577E533

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
5960	svchost.exe	GET	200	192.229.221.95:80	http://ocsp.digicert.com/MFEwTzBNMEswSTAJBgUrDgMCGgUABBSAUQYBMq2awn1Rh6Doh%2FsBYgFV7gQUA95QNVbRTLtm8KPiGxvDl7I90VUCEAJ0LqoXyo4hxxe7H%2Fz9DKA%3D	unknown	—	—	whitelisted
608	svchost.exe	GET	200	23.35.229.160:80	http://www.microsoft.com/pkiops/crl/MicSecSerCA2011_2011-10-18.crl	unknown	—	—	whitelisted
5476	SIHClient.exe	GET	200	23.35.229.160:80	http://www.microsoft.com/pkiops/crl/Microsoft%20ECC%20Product%20Root%20Certificate%20Authority%202018.crl	unknown	—	—	whitelisted
3972	EXCEL.EXE	GET	200	192.229.221.95:80	http://ocsp.digicert.com/MFEwTzBNMEswSTAJBgUrDgMCGgUABBQ50otx%2Fh0Ztl%2Bz8SiPI7wEWVxDlQQUTiJUIBiV5uNu5g%2F6%2BrkS7QYXjzkCEAn5bsKVVV8kdJ6vHl3O1J0%3D	unknown	—	—	whitelisted
5476	SIHClient.exe	GET	200	23.35.229.160:80	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	192.168.100.255:138	—	—	—	whitelisted
608	svchost.exe	20.73.194.208:443	settings-win.data.microsoft.com	MICROSOFT-CORP-MSN-AS-BLOCK	NL	whitelisted
—	—	20.50.80.214:443	—	MICROSOFT-CORP-MSN-AS-BLOCK	IE	unknown
—	—	92.123.104.31:443	—	Akamai International B.V.	DE	unknown
5796	RUXIMICS.exe	20.73.194.208:443	settings-win.data.microsoft.com	MICROSOFT-CORP-MSN-AS-BLOCK	NL	whitelisted
2120	MoUsoCoreWorker.exe	20.73.194.208:443	settings-win.data.microsoft.com	MICROSOFT-CORP-MSN-AS-BLOCK	NL	whitelisted
3888	svchost.exe	239.255.255.250:1900	—	—	—	whitelisted
608	svchost.exe	51.124.78.146:443	settings-win.data.microsoft.com	MICROSOFT-CORP-MSN-AS-BLOCK	NL	whitelisted
608	svchost.exe	23.35.229.160:80	www.microsoft.com	AKAMAI-AS	DE	whitelisted
3972	EXCEL.EXE	52.109.28.46:443	officeclient.microsoft.com	MICROSOFT-CORP-MSN-AS-BLOCK	GB	whitelisted

DNS requests

Domain	IP	Reputation
settings-win.data.microsoft.com	20.73.194.208 51.124.78.146	whitelisted
google.com	172.217.18.14	whitelisted
www.microsoft.com	23.35.229.160	whitelisted
officeclient.microsoft.com	52.109.28.46	whitelisted
ecs.office.com	52.113.194.132	whitelisted
nws.visionconsulting.ro	188.209.214.83	unknown
royalpalm.sparkblue.lk	—	unknown
messaging.lifecycle.office.com	52.111.231.8	whitelisted
login.live.com	40.126.32.138 40.126.32.68 40.126.32.140 20.190.160.20 40.126.32.74 40.126.32.76 40.126.32.72 20.190.160.14	whitelisted
ocsp.digicert.com	192.229.221.95	whitelisted

Threats

No threats detected

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No debug info

General Info

MACRO-DFIR-RETO.xls

CD1D5DCB90901299B28FF9201426DECD

E950AB3DF7BE673792F14EBE334EBA3EAD54DF5E

B7DFFB5ADF108DBAC3890D1D0292334B7CAFBAB508141F5A45C8AE21722B87DE

1536:AsssHQHYtrypIh12lcz6xQv+tkbCZ43GVMjKB0/ShPr5Tl7RTFLJD17xDVL5zF7x:suDiEB2995AInPMEbnAh2jV

Software environment set and analysis options

Launch configuration

Software preset

Hotfixes

Behavior activities

MALICIOUS

Registers / Runs the DLL via REGSVR32.EXE

Unusual execution from MS Office

SUSPICIOUS

INFO

Malware configuration

Static information

TRiD

EXIF

FlashPix

Video and screenshots

Processes

Behavior graph

Specs description

Process information

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