Malware analysis Server.exe Malicious activity | ANY.RUN

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File name:	Server.exe
Full analysis:	https://app.any.run/tasks/b239a541-0670-48f6-8069-9f4fa0fe9781
Verdict:	Malicious activity
Threats:	njRAT is a remote access trojan. It is one of the most widely accessible RATs on the market that features an abundance of educational information. Interested attackers can even find tutorials on YouTube. This allows it to become one of the most popular RATs in the world. njRAT ist ein Trojaner für den Fernzugriff. Es handelt sich um einen der am weitesten verbreiteten RATs auf dem Markt, der eine Fülle von Bildungsinformationen bietet. Interessierte Angreifer können sogar Tutorials auf YouTube finden. Dies macht ihn zu einem der beliebtesten RATs der Welt. 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:	March 24, 2025, 10:37:21
OS:	Windows 10 Professional (build: 19044, 64 bit)
Tags:	rat njrat bladabindi
Indicators:
MIME:	application/vnd.microsoft.portable-executable
File info:	PE32 executable (GUI) Intel 80386 Mono/.Net assembly, for MS Windows, 3 sections
MD5:	9F8322BD69E9C19E00CBB15668AF4493
SHA1:	13DD99D1ED4D5212FD0C25F3A4A400D261703F8F
SHA256:	42A29F8F40A6F864B0900C60083725E10362192DF430FCDAE0A61E98E0FB8A9A
SSDEEP:	1536:5hqeMivPoXPfEOXpYUKqdU1OtsnY8Q9C:zQXEyYUUOtsnEI

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
- NJRAT mutex has been found
  - Server.exe (PID: 496)
  - Dllhost.exe (PID: 7496)
  - Server.exe (PID: 7884)
- Uses Task Scheduler to run other applications
  - Dllhost.exe (PID: 7496)
- Changes the autorun value in the registry
  - Dllhost.exe (PID: 7496)
- Create files in the Startup directory
  - Dllhost.exe (PID: 7496)
SUSPICIOUS
- Reads security settings of Internet Explorer
  - Server.exe (PID: 496)
- Executable content was dropped or overwritten
  - Server.exe (PID: 496)
  - Dllhost.exe (PID: 7496)
- The process creates files with name similar to system file names
  - Server.exe (PID: 496)
- Starts itself from another location
  - Server.exe (PID: 496)
- Connects to unusual port
  - Dllhost.exe (PID: 7496)
- The process executes via Task Scheduler
  - Server.exe (PID: 7884)
INFO
- Create files in a temporary directory
  - Server.exe (PID: 496)
- Checks supported languages
  - Server.exe (PID: 496)
  - Dllhost.exe (PID: 7496)
- Process checks computer location settings
  - Server.exe (PID: 496)
- Reads the computer name
  - Dllhost.exe (PID: 7496)
- Creates files or folders in the user directory
  - Dllhost.exe (PID: 7496)
- Autorun file from Startup directory
  - Dllhost.exe (PID: 7496)

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	\|	Generic CIL Executable (.NET, Mono, etc.) (56.7)
.exe	\|	Win64 Executable (generic) (21.3)
.scr	\|	Windows screen saver (10.1)
.dll	\|	Win32 Dynamic Link Library (generic) (5)
.exe	\|	Win32 Executable (generic) (3.4)

EXIF

EXE

MachineType:	Intel 386 or later, and compatibles
TimeStamp:	2025:03:24 10:30:02+00:00
ImageFileCharacteristics:	Executable, 32-bit
PEType:	PE32
LinkerVersion:	8
CodeSize:	41984
InitializedDataSize:	1536
UninitializedDataSize:	-
EntryPoint:	0xc37e
OSVersion:	4
ImageVersion:	-
SubsystemVersion:	4
Subsystem:	Windows GUI

No data.

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All screenshots are available in the full report

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Total processes

141

Monitored processes

Malicious processes

Suspicious processes

Behavior graph

Click at the process to see the details

Process information

PID

CMD

Path

Indicators

Parent process

496

"C:\Users\admin\AppData\Local\Temp\Server.exe"

C:\Users\admin\AppData\Local\Temp\Server.exe

explorer.exe

User:

admin

Integrity Level:

MEDIUM

Exit code:

Modules

Images
c:\windows\syswow64\shell32.dll
c:\windows\syswow64\shcore.dll
c:\windows\syswow64\windows.storage.dll
c:\windows\syswow64\wldp.dll
c:\windows\syswow64\propsys.dll
c:\windows\syswow64\clbcatq.dll
c:\windows\syswow64\profapi.dll
c:\windows\syswow64\cfgmgr32.dll
c:\windows\syswow64\edputil.dll
c:\windows\syswow64\windows.staterepositoryps.dll

6392

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)

7496

"C:\Users\admin\AppData\Local\Temp\Dllhost.exe"

C:\Users\admin\AppData\Local\Temp\Dllhost.exe

Server.exe

User:

admin

Integrity Level:

MEDIUM

Modules

Images
c:\users\admin\appdata\local\temp\dllhost.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\apphelp.dll

7564

schtasks /create /sc minute /mo 1 /tn Server /tr C:\Users\admin\AppData\Local\Temp/Server.exe

C:\Windows\SysWOW64\schtasks.exe

—

Dllhost.exe

User:

admin

Company:

Microsoft Corporation

Integrity Level:

MEDIUM

Description:

Task Scheduler Configuration Tool

Exit code:

Version:

10.0.19041.1 (WinBuild.160101.0800)

Modules

Images
c:\windows\syswow64\schtasks.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\msvcrt.dll

7572

\??\C:\WINDOWS\system32\conhost.exe 0xffffffff -ForceV1

C:\Windows\System32\conhost.exe

—

schtasks.exe

User:

admin

Company:

Microsoft Corporation

Integrity Level:

MEDIUM

Description:

Console Window Host

Exit code:

Version:

10.0.19041.1 (WinBuild.160101.0800)

Modules

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

7884

"C:\Users\admin\AppData\Local\Temp/Server.exe"

C:\Users\admin\AppData\Local\Temp\Server.exe

svchost.exe

User:

admin

Integrity Level:

MEDIUM

Exit code:

Modules

Images
c:\users\admin\appdata\local\temp\server.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

830

Read events

793

Write events

Delete events

Modification events


(PID) Process:	(7496) Dllhost.exe	Key:	HKEY_CURRENT_USER\Environment
Operation:	write	Name:	SEE_MASK_NOZONECHECKS
Value: 1
(PID) Process:	(7496) Dllhost.exe	Key:	HKEY_CURRENT_USER\SOFTWARE\Microsoft\Windows\CurrentVersion\Run
Operation:	write	Name:	Windows Update
Value: "C:\Users\admin\AppData\Local\Temp\Dllhost.exe" ..

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Executable files

Suspicious files

Text files

Unknown types

Dropped files

PID	Process	Filename		Type
7496	Dllhost.exe	C:\Users\admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\Java update.exe		executable
		MD5:9F8322BD69E9C19E00CBB15668AF4493	SHA256:42A29F8F40A6F864B0900C60083725E10362192DF430FCDAE0A61E98E0FB8A9A
7496	Dllhost.exe	C:\Users\admin\AppData\Local\Temp\Server.exe		executable
		MD5:2B8C938DAD1F6BF6BCD4E23C5CC7DB9E	SHA256:CDCFB2A930DD51C97D7F7ABBE1C773B01CF60E6796D2526EF4C6EC9306EF7C0E
496	Server.exe	C:\Users\admin\AppData\Local\Temp\Dllhost.exe		executable
		MD5:9F8322BD69E9C19E00CBB15668AF4493	SHA256:42A29F8F40A6F864B0900C60083725E10362192DF430FCDAE0A61E98E0FB8A9A

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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	23.48.23.156:80	http://crl.microsoft.com/pki/crl/products/MicRooCerAut2011_2011_03_22.crl	unknown	—	—	whitelisted
6544	svchost.exe	GET	200	184.30.131.245:80	http://ocsp.digicert.com/MFEwTzBNMEswSTAJBgUrDgMCGgUABBSAUQYBMq2awn1Rh6Doh%2FsBYgFV7gQUA95QNVbRTLtm8KPiGxvDl7I90VUCEAJ0LqoXyo4hxxe7H%2Fz9DKA%3D	unknown	—	—	whitelisted
5072	backgroundTaskHost.exe	GET	200	184.30.131.245:80	http://ocsp.digicert.com/MFEwTzBNMEswSTAJBgUrDgMCGgUABBQ50otx%2Fh0Ztl%2Bz8SiPI7wEWVxDlQQUTiJUIBiV5uNu5g%2F6%2BrkS7QYXjzkCEAUZZSZEml49Gjh0j13P68w%3D	unknown	—	—	whitelisted
7748	SIHClient.exe	GET	200	2.19.217.218:80	http://www.microsoft.com/pkiops/crl/Microsoft%20ECC%20Update%20Secure%20Server%20CA%202.1.crl	unknown	—	—	whitelisted
7748	SIHClient.exe	GET	200	2.19.217.218:80	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
—	—	4.231.128.59:443	settings-win.data.microsoft.com	MICROSOFT-CORP-MSN-AS-BLOCK	IE	whitelisted
4	System	192.168.100.255:138	—	—	—	whitelisted
5496	MoUsoCoreWorker.exe	23.48.23.156:80	crl.microsoft.com	Akamai International B.V.	DE	whitelisted
5496	MoUsoCoreWorker.exe	4.231.128.59:443	settings-win.data.microsoft.com	MICROSOFT-CORP-MSN-AS-BLOCK	IE	whitelisted
3216	svchost.exe	40.115.3.253:443	client.wns.windows.com	MICROSOFT-CORP-MSN-AS-BLOCK	NL	whitelisted
6544	svchost.exe	20.190.159.71:443	login.live.com	MICROSOFT-CORP-MSN-AS-BLOCK	IE	whitelisted
6544	svchost.exe	184.30.131.245:80	ocsp.digicert.com	AKAMAI-AS	US	whitelisted
6876	RUXIMICS.exe	51.124.78.146:443	settings-win.data.microsoft.com	MICROSOFT-CORP-MSN-AS-BLOCK	NL	whitelisted
2104	svchost.exe	51.124.78.146:443	settings-win.data.microsoft.com	MICROSOFT-CORP-MSN-AS-BLOCK	NL	whitelisted
5072	backgroundTaskHost.exe	20.74.47.205:443	arc.msn.com	MICROSOFT-CORP-MSN-AS-BLOCK	FR	whitelisted

DNS requests

Domain	IP	Reputation
google.com	142.250.185.142	whitelisted
settings-win.data.microsoft.com	4.231.128.59 51.124.78.146	whitelisted
crl.microsoft.com	23.48.23.156 23.48.23.143	whitelisted
client.wns.windows.com	40.115.3.253	whitelisted
login.live.com	20.190.159.71 40.126.31.2 20.190.159.130 40.126.31.1 20.190.159.75 40.126.31.69 20.190.159.128 20.190.159.2	whitelisted
ocsp.digicert.com	184.30.131.245	whitelisted
arc.msn.com	20.74.47.205	whitelisted
slscr.update.microsoft.com	4.175.87.197	whitelisted
www.microsoft.com	2.19.217.218	whitelisted
fe3cr.delivery.mp.microsoft.com	20.3.187.198	whitelisted

Threats

No threats detected

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No debug info

General Info

Server.exe

9F8322BD69E9C19E00CBB15668AF4493

13DD99D1ED4D5212FD0C25F3A4A400D261703F8F

42A29F8F40A6F864B0900C60083725E10362192DF430FCDAE0A61E98E0FB8A9A

1536:5hqeMivPoXPfEOXpYUKqdU1OtsnY8Q9C:zQXEyYUUOtsnEI

Software environment set and analysis options

Launch configuration

Software preset

Hotfixes

Behavior activities

MALICIOUS

NJRAT mutex has been found

Uses Task Scheduler to run other applications

Changes the autorun value in the registry

Create files in the Startup directory

SUSPICIOUS

Reads security settings of Internet Explorer

Executable content was dropped or overwritten

The process creates files with name similar to system file names

Starts itself from another location

Connects to unusual port

The process executes via Task Scheduler

INFO

Create files in a temporary directory

Checks supported languages

Process checks computer location settings

Reads the computer name

Creates files or folders in the user directory

Autorun file from Startup directory

Malware configuration

Static information

TRiD

EXIF

EXE

Video and screenshots

Processes

Behavior graph

Specs description

Process information

Information

Modules

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