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Windows Analysis Report
winmail.dat

Overview

General Information

Sample name:	winmail.dat
Analysis ID:	1431461
MD5:	7c0557d553ba411aea8cbfb0a8ca019f
SHA1:	67680df4c9268e3b0a687421fc89ef21122d9527
SHA256:	d6450cdcf7c4fece5750590967996b73116c13be3755f069acca86582cf1906a

Detection

Score:	1
Range:	0 - 100
Whitelisted:	false
Confidence:	80%

Signatures

Program does not show much activity (idle)

Queries the volume information (name, serial number etc) of a device

Classification

Process Tree

System is w10x64

OpenWith.exe (PID: 6564 cmdline: C:\Windows\system32\OpenWith.exe -Embedding MD5: E4A834784FA08C17D47A1E72429C5109)

cleanup

Malware Configuration

⊘No configs have been found

Yara Signatures

⊘No yara matches

Sigma Signatures

⊘No Sigma rule has matched

Snort Signatures

⊘No Snort rule has matched

Joe Sandbox Signatures

Click to jump to signature section

Show All Signature Results

There are no malicious signatures, click here to show all signatures.

Source: winmail.dat	String found in binary or memory: https://aka.ms/LearnAboutSenderIdentification
Source: winmail.dat	String found in binary or memory: https://we.tl/t-nsdjwtsB1E
Source: winmail.dat	String found in binary or memory: https://we.tl/t-nsdjwtsB1E?utm_campaign=TRN_TDL_05&utm_source=sendgrid&utm_medium=email&

Source: classification engine

Classification label: clean1.winDAT@1/0@0/0

Source: C:\Windows\System32\OpenWith.exe

Mutant created: \Sessions\1\BaseNamedObjects\Local\SM0:6564:120:WilError_03

Source: C:\Windows\System32\OpenWith.exe

File read: C:\Users\desktop.ini

Jump to behavior

Source: C:\Windows\System32\OpenWith.exe

Key opened: HKEY_LOCAL_MACHINE\Software\Policies\Microsoft\Windows\Safer\CodeIdentifiers

Jump to behavior

Source: C:\Windows\System32\OpenWith.exe	Section loaded: kernel.appcore.dll	Jump to behavior
Source: C:\Windows\System32\OpenWith.exe	Section loaded: uxtheme.dll	Jump to behavior
Source: C:\Windows\System32\OpenWith.exe	Section loaded: onecoreuapcommonproxystub.dll	Jump to behavior
Source: C:\Windows\System32\OpenWith.exe	Section loaded: windows.storage.dll	Jump to behavior
Source: C:\Windows\System32\OpenWith.exe	Section loaded: wldp.dll	Jump to behavior
Source: C:\Windows\System32\OpenWith.exe	Section loaded: twinui.dll	Jump to behavior
Source: C:\Windows\System32\OpenWith.exe	Section loaded: wintypes.dll	Jump to behavior
Source: C:\Windows\System32\OpenWith.exe	Section loaded: powrprof.dll	Jump to behavior
Source: C:\Windows\System32\OpenWith.exe	Section loaded: dwmapi.dll	Jump to behavior
Source: C:\Windows\System32\OpenWith.exe	Section loaded: pdh.dll	Jump to behavior
Source: C:\Windows\System32\OpenWith.exe	Section loaded: umpdc.dll	Jump to behavior
Source: C:\Windows\System32\OpenWith.exe	Section loaded: onecorecommonproxystub.dll	Jump to behavior
Source: C:\Windows\System32\OpenWith.exe	Section loaded: actxprxy.dll	Jump to behavior
Source: C:\Windows\System32\OpenWith.exe	Section loaded: propsys.dll	Jump to behavior
Source: C:\Windows\System32\OpenWith.exe	Section loaded: windows.staterepositoryps.dll	Jump to behavior
Source: C:\Windows\System32\OpenWith.exe	Section loaded: windows.ui.appdefaults.dll	Jump to behavior
Source: C:\Windows\System32\OpenWith.exe	Section loaded: windows.ui.immersive.dll	Jump to behavior
Source: C:\Windows\System32\OpenWith.exe	Section loaded: profapi.dll	Jump to behavior
Source: C:\Windows\System32\OpenWith.exe	Section loaded: ntmarta.dll	Jump to behavior
Source: C:\Windows\System32\OpenWith.exe	Section loaded: uiautomationcore.dll	Jump to behavior
Source: C:\Windows\System32\OpenWith.exe	Section loaded: dui70.dll	Jump to behavior
Source: C:\Windows\System32\OpenWith.exe	Section loaded: duser.dll	Jump to behavior
Source: C:\Windows\System32\OpenWith.exe	Section loaded: dwrite.dll	Jump to behavior
Source: C:\Windows\System32\OpenWith.exe	Section loaded: bcp47mrm.dll	Jump to behavior
Source: C:\Windows\System32\OpenWith.exe	Section loaded: uianimation.dll	Jump to behavior
Source: C:\Windows\System32\OpenWith.exe	Section loaded: d3d11.dll	Jump to behavior
Source: C:\Windows\System32\OpenWith.exe	Section loaded: dxgi.dll	Jump to behavior
Source: C:\Windows\System32\OpenWith.exe	Section loaded: d3d10warp.dll	Jump to behavior
Source: C:\Windows\System32\OpenWith.exe	Section loaded: resourcepolicyclient.dll	Jump to behavior
Source: C:\Windows\System32\OpenWith.exe	Section loaded: dxcore.dll	Jump to behavior
Source: C:\Windows\System32\OpenWith.exe	Section loaded: dcomp.dll	Jump to behavior
Source: C:\Windows\System32\OpenWith.exe	Section loaded: oleacc.dll	Jump to behavior
Source: C:\Windows\System32\OpenWith.exe	Section loaded: edputil.dll	Jump to behavior
Source: C:\Windows\System32\OpenWith.exe	Section loaded: windows.ui.dll	Jump to behavior
Source: C:\Windows\System32\OpenWith.exe	Section loaded: windowmanagementapi.dll	Jump to behavior
Source: C:\Windows\System32\OpenWith.exe	Section loaded: textinputframework.dll	Jump to behavior
Source: C:\Windows\System32\OpenWith.exe	Section loaded: inputhost.dll	Jump to behavior
Source: C:\Windows\System32\OpenWith.exe	Section loaded: twinapi.appcore.dll	Jump to behavior
Source: C:\Windows\System32\OpenWith.exe	Section loaded: coremessaging.dll	Jump to behavior
Source: C:\Windows\System32\OpenWith.exe	Section loaded: twinapi.appcore.dll	Jump to behavior
Source: C:\Windows\System32\OpenWith.exe	Section loaded: coreuicomponents.dll	Jump to behavior
Source: C:\Windows\System32\OpenWith.exe	Section loaded: coremessaging.dll	Jump to behavior
Source: C:\Windows\System32\OpenWith.exe	Section loaded: coremessaging.dll	Jump to behavior
Source: C:\Windows\System32\OpenWith.exe	Section loaded: coreuicomponents.dll	Jump to behavior
Source: C:\Windows\System32\OpenWith.exe	Section loaded: windowscodecs.dll	Jump to behavior
Source: C:\Windows\System32\OpenWith.exe	Section loaded: thumbcache.dll	Jump to behavior
Source: C:\Windows\System32\OpenWith.exe	Section loaded: policymanager.dll	Jump to behavior
Source: C:\Windows\System32\OpenWith.exe	Section loaded: msvcp110_win.dll	Jump to behavior
Source: C:\Windows\System32\OpenWith.exe	Section loaded: apphelp.dll	Jump to behavior
Source: C:\Windows\System32\OpenWith.exe	Section loaded: appresolver.dll	Jump to behavior
Source: C:\Windows\System32\OpenWith.exe	Section loaded: bcp47langs.dll	Jump to behavior
Source: C:\Windows\System32\OpenWith.exe	Section loaded: slc.dll	Jump to behavior
Source: C:\Windows\System32\OpenWith.exe	Section loaded: userenv.dll	Jump to behavior
Source: C:\Windows\System32\OpenWith.exe	Section loaded: sppc.dll	Jump to behavior
Source: C:\Windows\System32\OpenWith.exe	Section loaded: tiledatarepository.dll	Jump to behavior
Source: C:\Windows\System32\OpenWith.exe	Section loaded: staterepository.core.dll	Jump to behavior
Source: C:\Windows\System32\OpenWith.exe	Section loaded: windows.staterepository.dll	Jump to behavior
Source: C:\Windows\System32\OpenWith.exe	Section loaded: wtsapi32.dll	Jump to behavior
Source: C:\Windows\System32\OpenWith.exe	Section loaded: windows.staterepositorycore.dll	Jump to behavior
Source: C:\Windows\System32\OpenWith.exe	Section loaded: mrmcorer.dll	Jump to behavior
Source: C:\Windows\System32\OpenWith.exe	Section loaded: sxs.dll	Jump to behavior
Source: C:\Windows\System32\OpenWith.exe	Section loaded: directmanipulation.dll	Jump to behavior
Source: C:\Windows\System32\OpenWith.exe	Section loaded: textshaping.dll	Jump to behavior

Source: C:\Windows\System32\OpenWith.exe

Key value queried: HKEY_LOCAL_MACHINE\SOFTWARE\Classes\CLSID\{95E15D0A-66E6-93D9-C53C-76E6219D3341}\InProcServer32

Jump to behavior

Source: C:\Windows\System32\OpenWith.exe	Process information set: NOOPENFILEERRORBOX	Jump to behavior
Source: C:\Windows\System32\OpenWith.exe	Process information set: NOOPENFILEERRORBOX	Jump to behavior
Source: C:\Windows\System32\OpenWith.exe	Process information set: NOOPENFILEERRORBOX	Jump to behavior
Source: C:\Windows\System32\OpenWith.exe	Process information set: NOOPENFILEERRORBOX	Jump to behavior

Source: all processes

Thread injection, dropped files, key value created, disk infection and DNS query: no activity detected

Source: all processes

Thread injection, dropped files, key value created, disk infection and DNS query: no activity detected

Source: C:\Windows\System32\OpenWith.exe	Queries volume information: C:\Windows\Fonts\segoeui.ttf VolumeInformation	Jump to behavior
Source: C:\Windows\System32\OpenWith.exe	Queries volume information: C:\Windows\Fonts\seguisym.ttf VolumeInformation	Jump to behavior
Source: C:\Windows\System32\OpenWith.exe	Queries volume information: C:\Windows\Fonts\seguisb.ttf VolumeInformation	Jump to behavior
Source: C:\Windows\System32\OpenWith.exe	Queries volume information: C:\Windows\Fonts\seguisym.ttf VolumeInformation	Jump to behavior

Mitre Att&ck Matrix

Reconnaissance	Resource Development	Initial Access	Execution	Persistence	Privilege Escalation	Defense Evasion	Credential Access	Discovery	Lateral Movement	Collection	Command and Control	Exfiltration	Impact
Gather Victim Identity Information	Acquire Infrastructure	Valid Accounts	Windows Management Instrumentation	1 DLL Side-Loading	1 DLL Side-Loading	1 DLL Side-Loading	OS Credential Dumping	1 File and Directory Discovery	Remote Services	Data from Local System	Data Obfuscation	Exfiltration Over Other Network Medium	Abuse Accessibility Features
Credentials	Domains	Default Accounts	Scheduled Task/Job	Boot or Logon Initialization Scripts	Boot or Logon Initialization Scripts	Rootkit	LSASS Memory	11 System Information Discovery	Remote Desktop Protocol	Data from Removable Media	Junk Data	Exfiltration Over Bluetooth	Network Denial of Service

Behavior Graph

Hide Legend

Legend:

Process
Signature
Created File
DNS/IP Info
Is Dropped
Is Windows Process
Number of created Registry Values
Number of created Files
Visual Basic
Delphi
Java
.Net C# or VB.NET
C, C++ or other language
Is malicious
Internet

Screenshots

Thumbnails

This section contains all screenshots as thumbnails, including those not shown in the slideshow.

Antivirus, Machine Learning and Genetic Malware Detection

Initial Sample

⊘No Antivirus matches

Dropped Files

⊘No Antivirus matches

Unpacked PE Files

⊘No Antivirus matches

Domains

⊘No Antivirus matches

URLs

Source	Detection	Scanner	Label	Link
https://we.tl/t-nsdjwtsB1E?utm_campaign=TRN_TDL_05&utm_source=sendgrid&utm_medium=email&	0%	Avira URL Cloud	safe
https://we.tl/t-nsdjwtsB1E	0%	Avira URL Cloud	safe

Domains and IPs

Contacted Domains

⊘No contacted domains info

URLs from Memory and Binaries

Name	Source	Malicious	Antivirus Detection	Reputation
https://we.tl/t-nsdjwtsB1E?utm_campaign=TRN_TDL_05&utm_source=sendgrid&utm_medium=email&	winmail.dat	false	Avira URL Cloud: safe	unknown
https://aka.ms/LearnAboutSenderIdentification	winmail.dat	false		high
https://we.tl/t-nsdjwtsB1E	winmail.dat	false	Avira URL Cloud: safe	unknown

World Map of Contacted IPs

⊘No contacted IP infos

General Information

Joe Sandbox version:	40.0.0 Tourmaline
Analysis ID:	1431461
Start date and time:	2024-04-25 08:09:39 +02:00
Joe Sandbox product:	CloudBasic
Overall analysis duration:	0h 3m 52s
Hypervisor based Inspection enabled:	false
Report type:	full
Cookbook file name:	default.jbs
Analysis system description:	Windows 10 x64 22H2 with Office Professional Plus 2019, Chrome 117, Firefox 118, Adobe Reader DC 23, Java 8 Update 381, 7zip 23.01
Number of analysed new started processes analysed:	6
Number of new started drivers analysed:	0
Number of existing processes analysed:	0
Number of existing drivers analysed:	0
Number of injected processes analysed:	0
Technologies:	HCA enabled EGA enabled AMSI enabled
Analysis Mode:	default
Analysis stop reason:	Timeout
Sample name:	winmail.dat
Detection:	CLEAN
Classification:	clean1.winDAT@1/0@0/0
EGA Information:	Failed
HCA Information:	Successful, ratio: 100% Number of executed functions: 0 Number of non-executed functions: 0

Warnings

Exclude process from analysis (whitelisted): MpCmdRun.exe, WMIADAP.exe, SIHClient.exe, conhost.exe, svchost.exe
Excluded domains from analysis (whitelisted): fs.microsoft.com, ocsp.digicert.com, slscr.update.microsoft.com, ctldl.windowsupdate.com, fe3cr.delivery.mp.microsoft.com
Not all processes where analyzed, report is missing behavior information
Report size getting too big, too many NtOpenKeyEx calls found.
Report size getting too big, too many NtProtectVirtualMemory calls found.
Report size getting too big, too many NtQueryValueKey calls found.

Simulations

Behavior and APIs

Time	Type	Description
08:10:29	API Interceptor	1x Sleep call for process: OpenWith.exe modified

Joe Sandbox View / Context

IPs

⊘No context

Domains

⊘No context

ASNs

⊘No context

JA3 Fingerprints

⊘No context

Dropped Files

⊘No context

Created / dropped Files

⊘No created / dropped files found

Static File Info

General

File type:	Transport Neutral Encapsulation Format
Entropy (8bit):	7.893762001783175
TrID:	Transport Neutral Encapsulation Format (4004/1) 80.00% ZLIB compressed file (1001/1) 20.00%
File name:	winmail.dat
File size:	166'478 bytes
MD5:	7c0557d553ba411aea8cbfb0a8ca019f
SHA1:	67680df4c9268e3b0a687421fc89ef21122d9527
SHA256:	d6450cdcf7c4fece5750590967996b73116c13be3755f069acca86582cf1906a
SHA512:	ddcc54f0b0b3d1916990074d9457e669a0b8125bee3c5a221e8250a8f991c4b54e5fb43b0a1a0fa493978cb278fba2ebbd9313fc3903d40ff237621acb76a815
SSDEEP:	3072:p+1USrQTva6KUo7h/6AVitreCcaT3u1HqXGBK2x5w6ZuO/DpiKo0+EaGGfMMAxXH:p+SSria6KRh/R8teeiJF49KliKT+YwEX
TLSH:	C6F30202DA7BDE32DC9F5130D56A2F930193167EC1D90370D0B6672EDE8AC366AC67A1
File Content Preview:	x.>":........................................."..+.............&.......).......p.....h...F.R.A.U.D.U.L.E.N.T. .C.A.S.E. .F.O.R. .D.U.B.A.I. .P.R.O.P.E.R.T.I.E.S. .;. .G.L.A.S.S. .W.O.R.L.D. .....q............\.=...}nrDH.....<N.....................(.....j.

File Icon


Icon Hash:	72e2a2a292a2a2b2

Network Behavior

⊘No network behavior found

Statistics

CPU Usage

Click to jump to process

Memory Usage

Click to jump to process

System Behavior

Analysis Process: OpenWith.exePID: 6564, Parent PID: 752

General

Target ID:	0
Start time:	08:10:29
Start date:	25/04/2024
Path:	C:\Windows\System32\OpenWith.exe
Wow64 process (32bit):	false
Commandline:	C:\Windows\system32\OpenWith.exe -Embedding
Imagebase:	0x7ff71d640000
File size:	123'984 bytes
MD5 hash:	E4A834784FA08C17D47A1E72429C5109
Has elevated privileges:	false
Has administrator privileges:	false
Programmed in:	C, C++ or other language
Reputation:	moderate
Has exited:	true

Show Windows behavior

Chronological Activities

Disassembly

⊘No disassembly

Description:	Adversaries may execute their own malicious payloads by side-loading DLLs. Similar to DLL Search Order Hijacking , side-loading involves hijacking which DLL a program loads. But rather than just planting the DLL within the search order of a program then waiting for the victim application to be invoked, adversaries may directly side-load their payloads by planting then invoking a legitimate application that executes their payload(s).
Tactics:	Defense Evasion, Persistence, Privilege Escalation
Data Sources:	File: File Creation, File: File Modification, Module: Module Load, Process: Process Creation
Platforms:	Windows
Url:	Open detailed description by Mitre

Description:	Adversaries may enumerate files and directories or may search in specific locations of a host or network share for certain information within a file system. Adversaries may use the information from File and Directory Discovery during automated discovery to shape follow-on behaviors, including whether or not the adversary fully infects the target and/or attempts specific actions.
Tactics:	Discovery
Data Sources:	Command: Command Execution, Process: OS API Execution, Process: Process Creation
Platforms:	Linux, macOS, Network, Windows
Url:	Open detailed description by Mitre

Description:	An adversary may attempt to get detailed information about the operating system and hardware, including version, patches, hotfixes, service packs, and architecture. Adversaries may use the information from System Information Discovery during automated discovery to shape follow-on behaviors, including whether or not the adversary fully infects the target and/or attempts specific actions.
Tactics:	Discovery
Data Sources:	Command: Command Execution, Process: OS API Execution, Process: Process Creation
Platforms:	IaaS, Linux, macOS, Network, Windows
Url:	Open detailed description by Mitre

Behavior Section

Behavior Chronological

Disassembly

Uncategorized

Graph

Loading Joe Sandbox Report ...

Warning!

Windows Analysis Report winmail.dat

Overview

General Information

Detection

Signatures

Classification

Process Tree

Malware Configuration

Yara Signatures

Sigma Signatures

Snort Signatures

Joe Sandbox Signatures

Networking

System Summary

Hooking and other Techniques for Hiding and Protection

Malware Analysis System Evasion

Anti Debugging

Language, Device and Operating System Detection

Mitre Att&ck Matrix

Behavior Graph

Screenshots

Thumbnails

Antivirus, Machine Learning and Genetic Malware Detection

Initial Sample

Dropped Files

Unpacked PE Files

Domains

URLs

Domains and IPs

Contacted Domains

URLs from Memory and Binaries

World Map of Contacted IPs

General Information

Warnings

Simulations

Behavior and APIs

Joe Sandbox View / Context

IPs

Domains

ASNs

JA3 Fingerprints

Dropped Files

Created / dropped Files

Static File Info

General

File Icon

Network Behavior

Statistics

CPU Usage

Memory Usage

System Behavior

Analysis Process: OpenWith.exePID: 6564, Parent PID: 752

General

Chronological Activities

Disassembly

Windows Analysis Report
winmail.dat