Malware analysis 1d1c8b7a5776992e25a7600ed72d7b0059f2531cc77da2d75483d6de9dbaf042.exe Malicious activity

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File name:	1d1c8b7a5776992e25a7600ed72d7b0059f2531cc77da2d75483d6de9dbaf042.exe
Full analysis:	https://app.any.run/tasks/fab3ec73-6fb1-4a93-9543-4f1801c795b1
Verdict:	Malicious activity
Threats:	FatalRAT is a malware that gives hackers remote access and control of the system and lets them steal sensitive information like login credentials and financial data. FatalRAT has been associated with cyber espionage campaigns, particularly targeting organizations in the Asia-Pacific (APAC) region. 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:	April 29, 2025, 15:20:09
OS:	Windows 10 Professional (build: 19044, 64 bit)
Tags:	fatalrat rat
Indicators:
MIME:	application/vnd.microsoft.portable-executable
File info:	PE32 executable (GUI) Intel 80386, for MS Windows, 6 sections
MD5:	3A7D037C586F0C3FA546A3A2CE7F6FEA
SHA1:	51E6343565238DF3D5CC371B8E353F8B6776D330
SHA256:	1D1C8B7A5776992E25A7600ED72D7B0059F2531CC77DA2D75483D6DE9DBAF042
SSDEEP:	98304:OxNbfxYGmmADOogqMjr9wRToHxo8VuGL/brlfdHPlA7WmHIGtuTliI14y/0Wix6c:wlv

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:: off
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
- FATALRAT has been detected (SURICATA)
  - 1d1c8b7a5776992e25a7600ed72d7b0059f2531cc77da2d75483d6de9dbaf042.exe (PID: 7436)
- Connects to the CnC server
  - 1d1c8b7a5776992e25a7600ed72d7b0059f2531cc77da2d75483d6de9dbaf042.exe (PID: 7436)
- FATALRAT has been detected (YARA)
  - 1d1c8b7a5776992e25a7600ed72d7b0059f2531cc77da2d75483d6de9dbaf042.exe (PID: 7436)
SUSPICIOUS
- Contacting a server suspected of hosting an CnC
  - 1d1c8b7a5776992e25a7600ed72d7b0059f2531cc77da2d75483d6de9dbaf042.exe (PID: 7436)
- Connects to unusual port
  - 1d1c8b7a5776992e25a7600ed72d7b0059f2531cc77da2d75483d6de9dbaf042.exe (PID: 7436)
INFO
- Checks supported languages
  - 1d1c8b7a5776992e25a7600ed72d7b0059f2531cc77da2d75483d6de9dbaf042.exe (PID: 7436)
- Reads the computer name
  - 1d1c8b7a5776992e25a7600ed72d7b0059f2531cc77da2d75483d6de9dbaf042.exe (PID: 7436)
- Reads CPU info
  - 1d1c8b7a5776992e25a7600ed72d7b0059f2531cc77da2d75483d6de9dbaf042.exe (PID: 7436)

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	\|	Win32 Executable MS Visual C++ 5.0 (44.3)
.exe	\|	Win32 Executable MS Visual C++ (generic) (22.8)
.exe	\|	Win64 Executable (generic) (20.2)
.dll	\|	Win32 Dynamic Link Library (generic) (4.8)
.exe	\|	Win32 Executable (generic) (3.2)

EXIF

EXE

MachineType:	Intel 386 or later, and compatibles
TimeStamp:	2024:08:18 04:19:04+00:00
ImageFileCharacteristics:	No relocs, Executable, No line numbers, No symbols, 32-bit
PEType:	PE32
LinkerVersion:	6
CodeSize:	20480
InitializedDataSize:	364544
UninitializedDataSize:	-
EntryPoint:	0x3c7b5c
OSVersion:	5
ImageVersion:	-
SubsystemVersion:	5
Subsystem:	Windows GUI

No data.

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All screenshots are available in the full report

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Total processes

129

Monitored processes

Malicious processes

Suspicious processes

Behavior graph

Click at the process to see the details

Process information

PID

CMD

Path

Indicators

Parent process

2196

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

7436

"C:\Users\admin\AppData\Local\Temp\1d1c8b7a5776992e25a7600ed72d7b0059f2531cc77da2d75483d6de9dbaf042.exe"

C:\Users\admin\AppData\Local\Temp\1d1c8b7a5776992e25a7600ed72d7b0059f2531cc77da2d75483d6de9dbaf042.exe

explorer.exe

User:

admin

Integrity Level:

MEDIUM

Modules

Images
c:\users\admin\appdata\local\temp\1d1c8b7a5776992e25a7600ed72d7b0059f2531cc77da2d75483d6de9dbaf042.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\kernel32.dll
c:\windows\syswow64\kernelbase.dll
c:\windows\syswow64\apphelp.dll
c:\windows\syswow64\user32.dll

7480

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

7512

"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

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Total events

816

Read events

810

Write events

Delete events

Modification events


(PID) Process:	(7436) 1d1c8b7a5776992e25a7600ed72d7b0059f2531cc77da2d75483d6de9dbaf042.exe	Key:	HKEY_CURRENT_USER\System\CurrentControlSet\Services
Operation:	write	Name:	Group
Value: Fatal
(PID) Process:	(7436) 1d1c8b7a5776992e25a7600ed72d7b0059f2531cc77da2d75483d6de9dbaf042.exe	Key:	HKEY_CURRENT_USER\System\CurrentControlSet\Services
Operation:	write	Name:	InstallTime
Value: 2025-04-29 15:20
(PID) Process:	(7436) 1d1c8b7a5776992e25a7600ed72d7b0059f2531cc77da2d75483d6de9dbaf042.exe	Key:	HKEY_LOCAL_MACHINE\SOFTWARE\WOW6432Node\Microsoft\DirectDraw\MostRecentApplication
Operation:	write	Name:	Name
Value: 1d1c8b7a5776992e25a7600ed72d7b0059f2531cc77da2d75483d6de9dbaf042.exe
(PID) Process:	(7436) 1d1c8b7a5776992e25a7600ed72d7b0059f2531cc77da2d75483d6de9dbaf042.exe	Key:	HKEY_LOCAL_MACHINE\SOFTWARE\WOW6432Node\Microsoft\DirectDraw\MostRecentApplication
Operation:	write	Name:	ID
Value:

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Executable files

Suspicious files

Text files

Unknown types

Dropped files

No data

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
5496	MoUsoCoreWorker.exe	GET	200	23.216.77.36:80	http://crl.microsoft.com/pki/crl/products/MicRooCerAut2011_2011_03_22.crl	unknown	—	—	whitelisted
—	—	GET	200	23.216.77.36:80	http://crl.microsoft.com/pki/crl/products/MicRooCerAut2011_2011_03_22.crl	unknown	—	—	whitelisted
5496	MoUsoCoreWorker.exe	GET	200	23.35.229.160:80	http://www.microsoft.com/pkiops/crl/MicSecSerCA2011_2011-10-18.crl	unknown	—	—	whitelisted
—	—	GET	200	23.35.229.160:80	http://www.microsoft.com/pkiops/crl/MicSecSerCA2011_2011-10-18.crl	unknown	—	—	whitelisted
6544	svchost.exe	GET	200	184.30.131.245:80	http://ocsp.digicert.com/MFEwTzBNMEswSTAJBgUrDgMCGgUABBSAUQYBMq2awn1Rh6Doh%2FsBYgFV7gQUA95QNVbRTLtm8KPiGxvDl7I90VUCEAJ0LqoXyo4hxxe7H%2Fz9DKA%3D	unknown	—	—	whitelisted
8076	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
8076	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

Download PCAP, analyze network streams, HTTP content and a lot more at the full report

Connections

PID	Process	IP	Domain	ASN	CN	Reputation
—	—	51.124.78.146:443	settings-win.data.microsoft.com	MICROSOFT-CORP-MSN-AS-BLOCK	NL	whitelisted
4	System	192.168.100.255:137	—	—	—	whitelisted
5496	MoUsoCoreWorker.exe	23.216.77.36:80	crl.microsoft.com	Akamai International B.V.	DE	whitelisted
—	—	23.216.77.36:80	crl.microsoft.com	Akamai International B.V.	DE	whitelisted
2104	svchost.exe	51.124.78.146:443	settings-win.data.microsoft.com	MICROSOFT-CORP-MSN-AS-BLOCK	NL	whitelisted
5496	MoUsoCoreWorker.exe	23.35.229.160:80	www.microsoft.com	AKAMAI-AS	DE	whitelisted
—	—	23.35.229.160:80	www.microsoft.com	AKAMAI-AS	DE	whitelisted
4	System	192.168.100.255:138	—	—	—	whitelisted
7436	1d1c8b7a5776992e25a7600ed72d7b0059f2531cc77da2d75483d6de9dbaf042.exe	143.92.57.125:1080	a20.yydsnb1.top	BGPNET Global ASN	HK	malicious
3216	svchost.exe	172.211.123.250:443	client.wns.windows.com	MICROSOFT-CORP-MSN-AS-BLOCK	FR	whitelisted

DNS requests

Domain	IP	Reputation
crl.microsoft.com	23.216.77.36 23.216.77.28	whitelisted
www.microsoft.com	23.35.229.160	whitelisted
google.com	142.250.186.110	whitelisted
a20.yydsnb1.top	143.92.57.125	unknown
a20.nbdsnb2.top	—	unknown
client.wns.windows.com	172.211.123.250	whitelisted
login.live.com	20.190.160.4 20.190.160.67 40.126.32.134 20.190.160.22 40.126.32.76 20.190.160.17 40.126.32.68 20.190.160.132	whitelisted
ocsp.digicert.com	184.30.131.245	whitelisted
settings-win.data.microsoft.com	51.104.136.2 51.124.78.146	whitelisted
slscr.update.microsoft.com	20.12.23.50	whitelisted

Threats

PID	Process	Class	Message
2196	svchost.exe	Potentially Bad Traffic	ET DNS Query to a *.top domain - Likely Hostile
7436	1d1c8b7a5776992e25a7600ed72d7b0059f2531cc77da2d75483d6de9dbaf042.exe	Malware Command and Control Activity Detected	ET MALWARE FatalRAT CnC Activity
2196	svchost.exe	Potentially Bad Traffic	ET DNS Query to a *.top domain - Likely Hostile

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No debug info

General Info

1d1c8b7a5776992e25a7600ed72d7b0059f2531cc77da2d75483d6de9dbaf042.exe

3A7D037C586F0C3FA546A3A2CE7F6FEA

51E6343565238DF3D5CC371B8E353F8B6776D330

1D1C8B7A5776992E25A7600ED72D7B0059F2531CC77DA2D75483D6DE9DBAF042

98304:OxNbfxYGmmADOogqMjr9wRToHxo8VuGL/brlfdHPlA7WmHIGtuTliI14y/0Wix6c:wlv

Software environment set and analysis options

Launch configuration

Software preset

Hotfixes

Behavior activities

MALICIOUS

FATALRAT has been detected (SURICATA)

Connects to the CnC server

FATALRAT has been detected (YARA)

SUSPICIOUS

Contacting a server suspected of hosting an CnC

Connects to unusual port

INFO

Checks supported languages

Reads the computer name

Reads CPU info

Malware configuration

Static information

TRiD

EXIF

EXE

Video and screenshots

Processes

Behavior graph

Specs description

Process information

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