Malware analysis YDRAY-1DOC-PROCESO-PDF.zip Malicious activity

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File name:	YDRAY-1DOC-PROCESO-PDF.zip
Full analysis:	https://app.any.run/tasks/e595071a-11b2-4d25-85c9-2e870e1361a0
Verdict:	Malicious activity
Threats:	AsyncRAT is a RAT that can monitor and remotely control infected systems. This malware was introduced on Github as a legitimate open-source remote administration software, but hackers use it for its many powerful malicious functions. DCrat, also known as Dark Crystal RAT, is a remote access trojan (RAT), which was first introduced in 2018. It is a modular malware that can be customized to perform different tasks. For instance, it can steal passwords, crypto wallet information, hijack Telegram and Steam accounts, and more. Attackers may use a variety of methods to distribute DCrat, but phishing email campaigns are the most common. Remote access trojans (RATs) are a type of malware that enables attackers to establish complete to partial control over infected computers. Such malicious programs often have a modular design, offering a wide range of functionalities for conducting illicit activities on compromised systems. Some of the most common features of RATs include access to the users’ data, webcam, and keystrokes. This malware is often distributed through phishing emails and links. Malware Trends Tracker >>>
Analysis date:	February 19, 2025, 14:19:19
OS:	Windows 10 Professional (build: 19045, 64 bit)
Tags:	auto generic arch-exec dcrat rat asyncrat remote
Indicators:
MIME:	application/zip
File info:	Zip archive data, at least v1.0 to extract, compression method=AES Encrypted
MD5:	99896909AB9383194EFFA820791F233C
SHA1:	8F582B55DD65392B794256107F2117404FFC1211
SHA256:	D6262A561C9506CE3EDE0D7C7ACB2BB4F3289F9219F43800B90F686E11659348
SSDEEP:	98304:f8tI2F9FySivamIjHQsvZhnSnLkBSPtrV7nBPVUdGOSKt8+ggFXryiIWXz5Vil7q:Yt6YS0

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
- GENERIC has been found (auto)
  - WinRAR.exe (PID: 6328)
  - WinRAR.exe (PID: 6708)
- DCRAT mutex has been found
  - AddInProcess32.exe (PID: 7104)
- ASYNCRAT has been detected (SURICATA)
  - AddInProcess32.exe (PID: 7104)
SUSPICIOUS
- Reads security settings of Internet Explorer
  - WinRAR.exe (PID: 6328)
- Application launched itself
  - WinRAR.exe (PID: 6328)
- Connects to unusual port
  - AddInProcess32.exe (PID: 7104)
- Contacting a server suspected of hosting an CnC
  - AddInProcess32.exe (PID: 7104)
INFO
- The sample compiled with english language support
  - WinRAR.exe (PID: 6328)
  - WinRAR.exe (PID: 6708)
- Executable content was dropped or overwritten
  - WinRAR.exe (PID: 6708)
- Checks supported languages
  - 1DOC-PROCESO-PDF.exe (PID: 7072)
  - AddInProcess32.exe (PID: 7104)
- Reads the machine GUID from the registry
  - AddInProcess32.exe (PID: 7104)
- Reads the software policy settings
  - AddInProcess32.exe (PID: 7104)

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

.zip	\|	ZIP compressed archive (100)

EXIF

ZIP

ZipRequiredVersion:	10
ZipBitFlag:	0x0009
ZipCompression:	Unknown (99)
ZipModifyDate:	2025:02:18 19:52:32
ZipCRC:	0x9e7b85f4
ZipCompressedSize:	2475348
ZipUncompressedSize:	2475320
ZipFileName:	1DOC-PROCESO-PDF.zip

No data.

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All screenshots are available in the full report

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Total processes

126

Monitored processes

Malicious processes

Suspicious processes

Behavior graph

Click at the process to see the details

Process information

PID

CMD

Path

Indicators

Parent process

2192

C:\WINDOWS\system32\svchost.exe -k NetworkService -p -s Dnscache

C:\Windows\System32\svchost.exe

services.exe

User:

NETWORK SERVICE

Company:

Microsoft Corporation

Integrity Level:

SYSTEM

Description:

Host Process for Windows Services

Version:

10.0.19041.1 (WinBuild.160101.0800)

Modules

Images
c:\windows\system32\svchost.exe
c:\windows\system32\ntdll.dll
c:\windows\system32\kernel32.dll
c:\windows\system32\kernelbase.dll
c:\windows\system32\sechost.dll
c:\windows\system32\rpcrt4.dll
c:\windows\system32\bcrypt.dll
c:\windows\system32\ucrtbase.dll
c:\windows\system32\combase.dll
c:\windows\system32\kernel.appcore.dll

6328

"C:\Program Files\WinRAR\WinRAR.exe" C:\Users\admin\AppData\Local\Temp\YDRAY-1DOC-PROCESO-PDF.zip

C:\Program Files\WinRAR\WinRAR.exe

explorer.exe

User:

admin

Company:

Alexander Roshal

Integrity Level:

MEDIUM

Description:

WinRAR archiver

Version:

5.91.0

Modules

Images
c:\program files\winrar\winrar.exe
c:\windows\system32\ntdll.dll
c:\windows\system32\kernel32.dll
c:\windows\system32\kernelbase.dll
c:\windows\system32\user32.dll
c:\windows\system32\win32u.dll
c:\windows\system32\gdi32.dll
c:\windows\system32\gdi32full.dll
c:\windows\system32\msvcp_win.dll
c:\windows\system32\ucrtbase.dll

6708

"C:\Program Files\WinRAR\WinRAR.exe" C:\Users\admin\AppData\Local\Temp\Rar$DIb6328.8435\1DOC-PROCESO-PDF.zip

C:\Program Files\WinRAR\WinRAR.exe

WinRAR.exe

User:

admin

Company:

Alexander Roshal

Integrity Level:

MEDIUM

Description:

WinRAR archiver

Version:

5.91.0

Modules

Images
c:\program files\winrar\winrar.exe
c:\windows\system32\ntdll.dll
c:\windows\system32\kernel32.dll
c:\windows\system32\kernelbase.dll
c:\windows\system32\user32.dll
c:\windows\system32\win32u.dll
c:\windows\system32\gdi32.dll
c:\windows\system32\gdi32full.dll
c:\windows\system32\msvcp_win.dll
c:\windows\system32\ucrtbase.dll

7072

"C:\Users\admin\AppData\Local\Temp\Rar$EXa6708.11564\1DOC-PROCESO-PDF.exe"

C:\Users\admin\AppData\Local\Temp\Rar$EXa6708.11564\1DOC-PROCESO-PDF.exe

—

WinRAR.exe

User:

admin

Company:

Microsoft

Integrity Level:

MEDIUM

Description:

Topology Editor

Exit code:

4294967295

Version:

1.0.0.1

Modules

Images
c:\users\admin\appdata\local\temp\rar$exa6708.11564\1doc-proceso-pdf.exe
c:\windows\system32\ntdll.dll
c:\windows\system32\kernel32.dll
c:\windows\system32\kernelbase.dll
c:\windows\system32\gdi32.dll
c:\windows\system32\win32u.dll
c:\windows\system32\gdi32full.dll
c:\windows\system32\msvcp_win.dll
c:\windows\system32\ucrtbase.dll
c:\windows\system32\user32.dll

7104

"C:\Windows\Microsoft.NET\Framework\v4.0.30319\AddInProcess32.exe"

C:\Windows\Microsoft.NET\Framework\v4.0.30319\AddInProcess32.exe

1DOC-PROCESO-PDF.exe

User:

admin

Company:

Microsoft Corporation

Integrity Level:

MEDIUM

Description:

AddInProcess.exe

Version:

4.8.9037.0 built by: NET481REL1

Modules

Images
c:\windows\microsoft.net\framework\v4.0.30319\addinprocess32.exe
c:\windows\system32\ntdll.dll
c:\windows\syswow64\ntdll.dll
c:\windows\system32\wow64.dll
c:\windows\system32\wow64win.dll
c:\windows\system32\wow64cpu.dll
c:\windows\syswow64\mscoree.dll
c:\windows\syswow64\kernel32.dll
c:\windows\syswow64\kernelbase.dll
c:\windows\syswow64\advapi32.dll

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Total events

7 271

Read events

7 254

Write events

Delete events

Modification events


(PID) Process:	(6328) WinRAR.exe	Key:	HKEY_CURRENT_USER\SOFTWARE\WinRAR\ArcHistory
Operation:	write	Name:	3
Value: C:\Users\admin\Desktop\preferences.zip
(PID) Process:	(6328) WinRAR.exe	Key:	HKEY_CURRENT_USER\SOFTWARE\WinRAR\ArcHistory
Operation:	write	Name:	2
Value: C:\Users\admin\Desktop\chromium_ext.zip
(PID) Process:	(6328) WinRAR.exe	Key:	HKEY_CURRENT_USER\SOFTWARE\WinRAR\ArcHistory
Operation:	write	Name:	1
Value: C:\Users\admin\Desktop\omni_23_10_2024_.zip
(PID) Process:	(6328) WinRAR.exe	Key:	HKEY_CURRENT_USER\SOFTWARE\WinRAR\ArcHistory
Operation:	write	Name:	0
Value: C:\Users\admin\AppData\Local\Temp\YDRAY-1DOC-PROCESO-PDF.zip
(PID) Process:	(6328) WinRAR.exe	Key:	HKEY_CURRENT_USER\SOFTWARE\WinRAR\FileList\FileColumnWidths
Operation:	write	Name:	name
Value: 120
(PID) Process:	(6328) WinRAR.exe	Key:	HKEY_CURRENT_USER\SOFTWARE\WinRAR\FileList\FileColumnWidths
Operation:	write	Name:	size
Value: 80
(PID) Process:	(6328) WinRAR.exe	Key:	HKEY_CURRENT_USER\SOFTWARE\WinRAR\FileList\FileColumnWidths
Operation:	write	Name:	type
Value: 120
(PID) Process:	(6328) WinRAR.exe	Key:	HKEY_CURRENT_USER\SOFTWARE\WinRAR\FileList\FileColumnWidths
Operation:	write	Name:	mtime
Value: 100
(PID) Process:	(6328) WinRAR.exe	Key:	HKEY_CURRENT_USER\SOFTWARE\WinRAR\Interface
Operation:	write	Name:	ShowPassword
Value: 1
(PID) Process:	(6708) WinRAR.exe	Key:	HKEY_CURRENT_USER\SOFTWARE\WinRAR\ArcHistory
Operation:	write	Name:	3
Value: C:\Users\admin\Desktop\chromium_ext.zip

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Executable files

Suspicious files

Text files

Unknown types

Dropped files

PID	Process	Filename		Type
6708	WinRAR.exe	C:\Users\admin\AppData\Local\Temp\Rar$EXa6708.11564\1DOC-PROCESO-PDF.exe		executable
		MD5:93C7B66D77406F6B64507631A24BC140	SHA256:95687DA203507A11837EAEB29BFE86481828B74B62FC869604B5EAA552F950C2
6708	WinRAR.exe	C:\Users\admin\AppData\Local\Temp\Rar$EXa6708.11564\tedutil.dll		executable
		MD5:C89E38B3FF9EB4B61D74A23D60D8FE66	SHA256:4DD0667D8B936261F881228D053A19BE2BE2D8D8C7D1D9A9279AA6F071D42508
6328	WinRAR.exe	C:\Users\admin\AppData\Local\Temp\Rar$DIb6328.8435\1DOC-PROCESO-PDF.zip		compressed
		MD5:5B040E06DC5163EA487C138A0914E56F	SHA256:8FAB5597C9B403F31065840C8BFAF6C481AAB6DE097E25772EA502CEA1D898D1

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
4712	MoUsoCoreWorker.exe	GET	200	2.23.246.101:80	http://www.microsoft.com/pkiops/crl/MicSecSerCA2011_2011-10-18.crl	unknown	—	—	whitelisted
4712	MoUsoCoreWorker.exe	GET	200	2.19.11.120:80	http://crl.microsoft.com/pki/crl/products/MicRooCerAut2011_2011_03_22.crl	unknown	—	—	whitelisted
—	—	GET	304	2.19.11.120:80	http://crl.microsoft.com/pki/crl/products/MicRooCerAut2011_2011_03_22.crl	unknown	—	—	whitelisted
—	—	GET	200	2.17.190.73:80	http://ocsp.digicert.com/MFEwTzBNMEswSTAJBgUrDgMCGgUABBTrjrydRyt%2BApF3GSPypfHBxR5XtQQUs9tIpPmhxdiuNkHMEWNpYim8S8YCEAI5PUjXAkJafLQcAAsO18o%3D	unknown	—	—	whitelisted
—	—	GET	200	2.17.190.73:80	http://ocsp.digicert.com/MFEwTzBNMEswSTAJBgUrDgMCGgUABBSAUQYBMq2awn1Rh6Doh%2FsBYgFV7gQUA95QNVbRTLtm8KPiGxvDl7I90VUCEAJ0LqoXyo4hxxe7H%2Fz9DKA%3D	unknown	—	—	whitelisted
6532	SIHClient.exe	GET	200	2.23.246.101:80	http://www.microsoft.com/pkiops/crl/Microsoft%20ECC%20Product%20Root%20Certificate%20Authority%202018.crl	unknown	—	—	whitelisted
6532	SIHClient.exe	GET	200	2.23.246.101:80	http://www.microsoft.com/pkiops/crl/Microsoft%20ECC%20Update%20Secure%20Server%20CA%202.1.crl	unknown	—	—	whitelisted
488	backgroundTaskHost.exe	GET	200	2.23.77.188:80	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
4	System	192.168.100.255:137	—	—	—	whitelisted
—	—	4.231.128.59:443	settings-win.data.microsoft.com	MICROSOFT-CORP-MSN-AS-BLOCK	IE	whitelisted
4712	MoUsoCoreWorker.exe	2.19.11.120:80	crl.microsoft.com	Elisa Oyj	NL	whitelisted
—	—	2.19.11.120:80	crl.microsoft.com	Elisa Oyj	NL	whitelisted
4712	MoUsoCoreWorker.exe	2.23.246.101:80	www.microsoft.com	Ooredoo Q.S.C.	QA	whitelisted
1176	svchost.exe	20.190.160.17:443	login.live.com	MICROSOFT-CORP-MSN-AS-BLOCK	NL	whitelisted
—	—	2.19.96.74:443	www.bing.com	Akamai International B.V.	DE	whitelisted
—	—	2.17.190.73:80	ocsp.digicert.com	AKAMAI-AS	DE	whitelisted
4	System	192.168.100.255:138	—	—	—	whitelisted
1076	svchost.exe	2.18.97.227:443	go.microsoft.com	Akamai International B.V.	FR	whitelisted

DNS requests

Domain	IP	Reputation
settings-win.data.microsoft.com	4.231.128.59 20.73.194.208	whitelisted
google.com	172.217.18.14	whitelisted
crl.microsoft.com	2.19.11.120 2.19.11.105	whitelisted
www.microsoft.com	2.23.246.101	whitelisted
login.live.com	20.190.160.17 20.190.160.4 40.126.32.140 20.190.160.3 40.126.32.134 20.190.160.65 20.190.160.5 20.190.160.20	whitelisted
www.bing.com	2.19.96.74 2.19.96.25 2.19.96.80 2.19.96.18 2.19.96.27 2.19.96.35 2.19.96.41 2.19.96.66 2.19.96.19	whitelisted
ocsp.digicert.com	2.17.190.73 2.23.77.188	whitelisted
go.microsoft.com	2.18.97.227	whitelisted
slscr.update.microsoft.com	52.149.20.212	whitelisted
fe3cr.delivery.mp.microsoft.com	20.3.187.198	whitelisted

Threats

PID	Process	Class	Message
2192	svchost.exe	Potentially Bad Traffic	ET DYN_DNS DYNAMIC_DNS Query to a *.duckdns .org Domain
2192	svchost.exe	Misc activity	ET DYN_DNS DYNAMIC_DNS Query to *.duckdns. Domain
7104	AddInProcess32.exe	Domain Observed Used for C2 Detected	REMOTE [ANY.RUN] AsyncRAT SSL certificate
7104	AddInProcess32.exe	Domain Observed Used for C2 Detected	ET MALWARE Observed Malicious SSL Cert (AsyncRAT)
7104	AddInProcess32.exe	Malware Command and Control Activity Detected	REMOTE [ANY.RUN] AsyncRAT Successful Connection

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No debug info

General Info

YDRAY-1DOC-PROCESO-PDF.zip

99896909AB9383194EFFA820791F233C

8F582B55DD65392B794256107F2117404FFC1211

D6262A561C9506CE3EDE0D7C7ACB2BB4F3289F9219F43800B90F686E11659348

98304:f8tI2F9FySivamIjHQsvZhnSnLkBSPtrV7nBPVUdGOSKt8+ggFXryiIWXz5Vil7q:Yt6YS0

Software environment set and analysis options

Launch configuration

Software preset

Hotfixes

Behavior activities

MALICIOUS

GENERIC has been found (auto)

DCRAT mutex has been found

ASYNCRAT has been detected (SURICATA)

SUSPICIOUS

Reads security settings of Internet Explorer

Application launched itself

Connects to unusual port

Contacting a server suspected of hosting an CnC

INFO

The sample compiled with english language support

Executable content was dropped or overwritten

Checks supported languages

Reads the machine GUID from the registry

Reads the software policy settings

Malware configuration

Static information

TRiD

EXIF

ZIP

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