Malware analysis mediadrm.dll Malicious activity | ANY.RUN

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File name:	mediadrm.dll
Full analysis:	https://app.any.run/tasks/bcdd0f3d-fb45-4fff-b116-cab0305e0af8
Verdict:	Malicious activity
Analysis date:	February 03, 2025, 23:56:54
OS:	Windows 10 Professional (build: 19045, 64 bit)
Tags:	mimikatz tools
Indicators:
MIME:	application/vnd.microsoft.portable-executable
File info:	PE32+ executable (DLL) (GUI) x86-64, for MS Windows, 7 sections
MD5:	BE57543E1B5B2978ABF5D27690AECEAC
SHA1:	95BCBBE4B6745D42CC1B4B56838E6CB04F136B02
SHA256:	D4F421C985F1786F603BD1EAF4232D5A0D56B5EE8A7F02E0DA978B478F060AF2
SSDEEP:	3072:yz4Ml0f7uqplcpBIvWLI3hf11Eei6wlAS9kP4QPMMMMMKrB5tp/MMMMM5a:yz4Ml0fCqvcpWr1Q6wlAS9E4QFtl

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
- MIMIKATZ has been detected (YARA)
  - rundll32.exe (PID: 6460)
SUSPICIOUS
- Executes application which crashes
  - rundll32.exe (PID: 6460)
- The process creates files with name similar to system file names
  - WerFault.exe (PID: 6600)
INFO
- Reads the software policy settings
  - WerFault.exe (PID: 6600)
- Checks proxy server information
  - WerFault.exe (PID: 6600)
- Creates files or folders in the user directory
  - WerFault.exe (PID: 6600)

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

.exe	\|	Win64 Executable (generic) (87.3)
.exe	\|	Generic Win/DOS Executable (6.3)
.exe	\|	DOS Executable Generic (6.3)

EXIF

EXE

MachineType:	AMD AMD64
TimeStamp:	2024:12:03 08:15:20+00:00
ImageFileCharacteristics:	Executable, Large address aware, DLL
PEType:	PE32+
LinkerVersion:	14.29
CodeSize:	87040
InitializedDataSize:	58368
UninitializedDataSize:	-
EntryPoint:	0x1650
OSVersion:	6
ImageVersion:	-
SubsystemVersion:	6
Subsystem:	Windows GUI

No data.

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All screenshots are available in the full report

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Total processes

134

Monitored processes

Malicious processes

Suspicious processes

Behavior graph

Click at the process to see the details

Process information

PID

CMD

Path

Indicators

Parent process

6460

"C:\WINDOWS\System32\rundll32.exe" C:\Users\admin\AppData\Local\Temp\mediadrm.dll, #1

C:\Windows\System32\rundll32.exe

explorer.exe

User:

admin

Company:

Microsoft Corporation

Integrity Level:

MEDIUM

Description:

Windows host process (Rundll32)

Exit code:

3221225477

Version:

10.0.19041.1 (WinBuild.160101.0800)

Modules

Images
c:\windows\system32\rundll32.exe
c:\windows\system32\ntdll.dll
c:\windows\system32\kernel32.dll
c:\windows\system32\kernelbase.dll
c:\windows\system32\msvcrt.dll
c:\windows\system32\combase.dll
c:\windows\system32\ucrtbase.dll
c:\windows\system32\rpcrt4.dll
c:\windows\system32\shcore.dll
c:\windows\system32\imagehlp.dll

6600

C:\WINDOWS\system32\WerFault.exe -u -p 6460 -s 368

C:\Windows\System32\WerFault.exe

rundll32.exe

User:

admin

Company:

Microsoft Corporation

Integrity Level:

MEDIUM

Description:

Windows Problem Reporting

Exit code:

Version:

10.0.19041.1 (WinBuild.160101.0800)

Modules

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

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Total events

3 262

Read events

3 262

Write events

Delete events

Modification events

No data

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Executable files

Suspicious files

Text files

Unknown types

Dropped files

PID	Process	Filename		Type
6600	WerFault.exe	C:\ProgramData\Microsoft\Windows\WER\ReportArchive\AppCrash_rundll32.exe_med_0e1628e4f9892e7b6ffff8a3fcac344a89f24_2687568e_3ad1fb42-8fa9-4dea-aa5d-a68344d4a6f1\Report.wer		—
		MD5:—	SHA256:—
6600	WerFault.exe	C:\ProgramData\Microsoft\Windows\WER\Temp\WER5A48.tmp.dmp		binary
		MD5:E83743E5AE6FB0C38F82CA3311CAD268	SHA256:FE63C64A4079A6FCA4AD43735861F381B264C0FA84486F20D94DCB830EE6D637
6600	WerFault.exe	C:\Users\admin\AppData\LocalLow\Microsoft\CryptnetUrlCache\MetaData\37C951188967C8EB88D99893D9D191FE		binary
		MD5:B9A405D195C88049697EB94A15006C74	SHA256:C911207D174871B9216FBCCF8111118AB0D91CAFDE47C907AACD9C4670060236
6600	WerFault.exe	C:\ProgramData\Microsoft\Windows\WER\Temp\WER5DD5.tmp.xml		xml
		MD5:685647545263C509A0AB5559F7AA472E	SHA256:5C6363591FCD499E544554668334C1770B68C26D2B8001A52DE5DEAF1612125E
6600	WerFault.exe	C:\ProgramData\Microsoft\Windows\WER\Temp\WER5D95.tmp.WERInternalMetadata.xml		binary
		MD5:949E614E8CBD0ADFA6A3EF9716BE8198	SHA256:EB313A65E505766A328C3531D42FBF761EB65F264CB981595723DD103076CD13
6600	WerFault.exe	C:\Users\admin\AppData\LocalLow\Microsoft\CryptnetUrlCache\Content\37C951188967C8EB88D99893D9D191FE		binary
		MD5:FA84E4BCC92AA5DB735AB50711040CDE	SHA256:6D7205E794FDE4219A62D9692ECDDF612663A5CF20399E79BE87B851FCA4CA33
6600	WerFault.exe	C:\Users\admin\AppData\Local\CrashDumps\rundll32.exe.6460.dmp		binary
		MD5:432A424A6932CAED29B77D5A53862CBF	SHA256:520C74C7208946AEAD8CDB34C9E1CAD5379115A9B4C4B5B2B4B7277D752DF967
6600	WerFault.exe	C:\Users\admin\AppData\LocalLow\Microsoft\CryptnetUrlCache\Content\21253908F3CB05D51B1C2DA8B681A785		binary
		MD5:680B0331A3CC8FCCE16367586EC7A721	SHA256:19F1B5D2C7F62663C14D97578411DC610E5F33E6CE4165977314442435F15305
6600	WerFault.exe	C:\Users\admin\AppData\LocalLow\Microsoft\CryptnetUrlCache\MetaData\21253908F3CB05D51B1C2DA8B681A785		binary
		MD5:C6A8271DCB347155BB0003258DC83AA8	SHA256:5E90D25788510F9FF3C2C9604969829D2877FB500DD5BF840E3694B1020A373F

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	184.30.131.245:80	http://ocsp.digicert.com/MFEwTzBNMEswSTAJBgUrDgMCGgUABBSAUQYBMq2awn1Rh6Doh%2FsBYgFV7gQUA95QNVbRTLtm8KPiGxvDl7I90VUCEAJ0LqoXyo4hxxe7H%2Fz9DKA%3D	unknown	—	—	whitelisted
6600	WerFault.exe	GET	200	95.101.78.42:80	http://crl.microsoft.com/pki/crl/products/MicRooCerAut2011_2011_03_22.crl	unknown	—	—	whitelisted
6600	WerFault.exe	GET	200	184.30.21.171:80	http://www.microsoft.com/pkiops/crl/MicSecSerCA2011_2011-10-18.crl	unknown	—	—	whitelisted
4876	SIHClient.exe	GET	200	184.30.21.171:80	http://www.microsoft.com/pkiops/crl/Microsoft%20ECC%20Update%20Secure%20Server%20CA%202.1.crl	unknown	—	—	whitelisted
4876	SIHClient.exe	GET	200	184.30.21.171:80	http://www.microsoft.com/pkiops/crl/Microsoft%20ECC%20Product%20Root%20Certificate%20Authority%202018.crl	unknown	—	—	whitelisted
4648	backgroundTaskHost.exe	GET	200	184.30.131.245:80	http://ocsp.digicert.com/MFEwTzBNMEswSTAJBgUrDgMCGgUABBQ50otx%2Fh0Ztl%2Bz8SiPI7wEWVxDlQQUTiJUIBiV5uNu5g%2F6%2BrkS7QYXjzkCEAUZZSZEml49Gjh0j13P68w%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
4712	MoUsoCoreWorker.exe	20.73.194.208:443	settings-win.data.microsoft.com	MICROSOFT-CORP-MSN-AS-BLOCK	NL	whitelisted
1176	svchost.exe	20.190.160.17:443	login.live.com	MICROSOFT-CORP-MSN-AS-BLOCK	NL	whitelisted
—	—	184.30.131.245:80	ocsp.digicert.com	AKAMAI-AS	US	whitelisted
4	System	192.168.100.255:138	—	—	—	whitelisted
1076	svchost.exe	184.28.89.167:443	go.microsoft.com	AKAMAI-AS	US	whitelisted
1140	RUXIMICS.exe	40.127.240.158:443	settings-win.data.microsoft.com	MICROSOFT-CORP-MSN-AS-BLOCK	IE	whitelisted
4712	MoUsoCoreWorker.exe	51.124.78.146:443	settings-win.data.microsoft.com	MICROSOFT-CORP-MSN-AS-BLOCK	NL	whitelisted
6600	WerFault.exe	20.42.65.92:443	watson.events.data.microsoft.com	MICROSOFT-CORP-MSN-AS-BLOCK	US	whitelisted
6600	WerFault.exe	95.101.78.42:80	crl.microsoft.com	Akamai International B.V.	NL	whitelisted
6600	WerFault.exe	184.30.21.171:80	www.microsoft.com	AKAMAI-AS	DE	whitelisted

DNS requests

Domain	IP	Reputation
login.live.com	20.190.160.17 20.190.160.22 40.126.32.140 20.190.160.132 20.190.160.128 40.126.32.133 20.190.160.64 20.190.160.20	whitelisted
go.microsoft.com	184.28.89.167	whitelisted
settings-win.data.microsoft.com	40.127.240.158 51.124.78.146 20.73.194.208	whitelisted
watson.events.data.microsoft.com	20.42.65.92	whitelisted
crl.microsoft.com	95.101.78.42 95.101.78.32	whitelisted
www.microsoft.com	184.30.21.171	whitelisted
arc.msn.com	20.223.35.26	whitelisted
ocsp.digicert.com	184.30.131.245	whitelisted
fd.api.iris.microsoft.com	20.199.58.43	whitelisted
slscr.update.microsoft.com	4.175.87.197	whitelisted

Threats

No threats detected

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No debug info

General Info

mediadrm.dll

BE57543E1B5B2978ABF5D27690AECEAC

95BCBBE4B6745D42CC1B4B56838E6CB04F136B02

D4F421C985F1786F603BD1EAF4232D5A0D56B5EE8A7F02E0DA978B478F060AF2

3072:yz4Ml0f7uqplcpBIvWLI3hf11Eei6wlAS9kP4QPMMMMMKrB5tp/MMMMM5a:yz4Ml0fCqvcpWr1Q6wlAS9E4QFtl

Software environment set and analysis options

Launch configuration

Software preset

Hotfixes

Behavior activities

MALICIOUS

MIMIKATZ has been detected (YARA)

SUSPICIOUS

Executes application which crashes

The process creates files with name similar to system file names

INFO

Reads the software policy settings

Checks proxy server information

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

Registry activity

Modification events

Files activity

Dropped files

Network activity

HTTP requests

Connections

DNS requests

Threats

Debug output strings