Malware analysis Client.exe Malicious activity | ANY.RUN

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File name:	Client.exe
Full analysis:	https://app.any.run/tasks/81135fc1-0fc5-4745-affb-d844a2c3747e
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:	April 26, 2023, 21:27:43
OS:	Windows 10 Professional (build: 19044, 64 bit)
Tags:	rat njrat bladabindi
Indicators:
MIME:	application/x-dosexec
File info:	PE32 executable (GUI) Intel 80386 Mono/.Net assembly, for MS Windows
MD5:	617342105AF6FED5049BD6AC37993BEF
SHA1:	6F7721FAAA764A0C2237E39DC2F221D6D5BD51A5
SHA256:	FCB13FF72E371A91A7B0CBFDCB5F9AE66889FADAA5874050B7BF7829480C0CD9
SSDEEP:	768:uqfFtStrFZczxX6aiALG39Vf1vyUUQmIDUu0tiTrj:9yqp4VpvUQVk6j

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 11.789.19041.0
Adobe Acrobat Reader DC (20.013.20074)
Adobe Flash Player 32 NPAPI (32.0.0.465)
Adobe Flash Player 32 PPAPI (32.0.0.465)
CCleaner (5.74)
FileZilla Client 3.51.0 (3.51.0)
Google Chrome (112.0.5615.50)
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 (111.0.1661.62)
Microsoft Edge Update (1.3.173.51)
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 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) - 14.30.30704 (14.30.30704.0)
Microsoft Visual C++ 2022 X64 Additional Runtime - 14.30.30704 (14.30.30704)
Microsoft Visual C++ 2022 X64 Minimum Runtime - 14.30.30704 (14.30.30704)
Mozilla Firefox (x64 en-US) (111.0.1)
Mozilla Maintenance Service (111.0.1)
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 (16.0.15726.20202)
Office 16 Click-to-Run Localization Component (16.0.15726.20202)
Office 16 Click-to-Run Localization Component (16.0.15726.20202)
Office 16 Click-to-Run Localization Component (16.0.15726.20202)
Office 16 Click-to-Run Localization Component (16.0.15726.20202)
Office 16 Click-to-Run Localization Component (16.0.15726.20202)
Office 16 Click-to-Run Localization Component (16.0.15928.20198)
Opera 12.15 (12.15.1748)
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 (KB4023057) (2.67.0.0)
Update for Windows 10 for x64-based Systems (KB4480730) (2.55.0.0)
VLC media player (3.0.11)
WinRAR 5.91 (64-bit) (5.91.0)
Windows 10 Upgrade Assistant (1.4.9200.22175)

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MALICIOUS
- NJRAT detected by memory dumps
  - Client.exe (PID: 2516)
- Create files in the Startup directory
  - Client.exe (PID: 2516)
- Changes the autorun value in the registry
  - Client.exe (PID: 2516)
- NjRAT is detected
  - Client.exe (PID: 2516)
SUSPICIOUS
- Uses NETSH.EXE to add a firewall rule or allowed programs
  - Client.exe (PID: 2516)
- Connects to unusual port
  - Client.exe (PID: 2516)
- Executable content was dropped or overwritten
  - Client.exe (PID: 2516)
INFO
- Checks supported languages
  - Client.exe (PID: 2516)
  - SecHealthUI.exe (PID: 1664)
- The process checks LSA protection
  - Client.exe (PID: 2516)
  - netsh.exe (PID: 472)
  - SecurityHealthHost.exe (PID: 3964)
  - slui.exe (PID: 5672)
  - SecHealthUI.exe (PID: 1664)
  - SecurityHealthHost.exe (PID: 7028)
  - SecurityHealthHost.exe (PID: 7000)
- Creates files or folders in the user directory
  - Client.exe (PID: 2516)
- Reads the machine GUID from the registry
  - Client.exe (PID: 2516)
- Reads the computer name
  - Client.exe (PID: 2516)
  - SecHealthUI.exe (PID: 1664)
- [YARA] Firewall manipulation strings were found
  - Client.exe (PID: 2516)
- Reads Environment values
  - Client.exe (PID: 2516)

Find more information about signature artifacts and mapping to MITRE ATT&CK™ MATRIX at the full report

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NjRat

(PID) Process(2516) Client.exe

C2levels-yemen.at.ply.gg

Ports1177

BotnetMyBot

Options

Auto-run registry keySoftware\Microsoft\Windows\CurrentVersion\Run\4b025930843096e2342acc36574f9903

SplitterY262SUCZ4UJJ

Version0.7d

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

Subsystem:	Windows GUI
SubsystemVersion:	4
ImageVersion:	-
OSVersion:	4
EntryPoint:	0x953e
UninitializedDataSize:	-
InitializedDataSize:	1536
CodeSize:	30208
LinkerVersion:	8
PEType:	PE32
ImageFileCharacteristics:	Executable, 32-bit
TimeStamp:	2023:04:26 21:27:05+00:00
MachineType:	Intel 386 or later, and compatibles

Summary

Architecture:	IMAGE_FILE_MACHINE_I386
Subsystem:	IMAGE_SUBSYSTEM_WINDOWS_GUI
Compilation Date:	26-Apr-2023 21:27:05

DOS Header

Magic number:	MZ
Bytes on last page of file:	0x0090
Pages in file:	0x0003
Relocations:	0x0000
Size of header:	0x0004
Min extra paragraphs:	0x0000
Max extra paragraphs:	0xFFFF
Initial SS value:	0x0000
Initial SP value:	0x00B8
Checksum:	0x0000
Initial IP value:	0x0000
Initial CS value:	0x0000
Overlay number:	0x0000
OEM identifier:	0x0000
OEM information:	0x0000
Address of NE header:	0x00000080

PE Headers

Signature:	PE
Machine:	IMAGE_FILE_MACHINE_I386
Number of sections:	3
Time date stamp:	26-Apr-2023 21:27:05
Pointer to Symbol Table:	0x00000000
Number of symbols:	0
Size of Optional Header:	0x00E0
Characteristics:	IMAGE_FILE_32BIT_MACHINE IMAGE_FILE_EXECUTABLE_IMAGE

Sections

Name	Virtual Address	Virtual Size	Raw Size	Charateristics	Entropy
.text	0x00002000	0x00007544	0x00007600	IMAGE_SCN_CNT_CODE, IMAGE_SCN_MEM_EXECUTE, IMAGE_SCN_MEM_READ	5.65319
.rsrc	0x0000A000	0x00000240	0x00000400	IMAGE_SCN_CNT_INITIALIZED_DATA, IMAGE_SCN_MEM_READ	4.96877
.reloc	0x0000C000	0x0000000C	0x00000200	IMAGE_SCN_CNT_INITIALIZED_DATA, IMAGE_SCN_MEM_DISCARDABLE, IMAGE_SCN_MEM_READ	0.0815394

Resources

Title	Entropy	Size	Codepage	Language	Type
1	4.96801	487	Latin 1 / Western European	UNKNOWN	RT_MANIFEST

Imports


mscoree.dll

No data.

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All screenshots are available in the full report

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Total processes

138

Monitored processes

Malicious processes

Suspicious processes

Behavior graph

Click at the process to see the details

Process information

PID

CMD

Path

Indicators

Parent process

472

netsh firewall add allowedprogram "C:\Users\admin\AppData\Local\Temp\Client.exe" "Client.exe" ENABLE

C:\Windows\SysWOW64\netsh.exe

—

Client.exe

User:

admin

Company:

Microsoft Corporation

Integrity Level:

MEDIUM

Description:

Network Command Shell

Exit code:

Version:

10.0.19041.1 (WinBuild.160101.0800)

Modules

Images
c:\windows\system32\ntdll.dll
c:\windows\syswow64\ntdll.dll
c:\windows\syswow64\netsh.exe
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

1664

"C:\Windows\SystemApps\Microsoft.Windows.SecHealthUI_cw5n1h2txyewy\SecHealthUI.exe" -ServerName:SecHealthUI.AppXep4x2tbtjws1v9qqs0rmb3hxykvkpqtn.mca

C:\Windows\SystemApps\Microsoft.Windows.SecHealthUI_cw5n1h2txyewy\SecHealthUI.exe

—

svchost.exe

User:

admin

Company:

Microsoft Corporation

Integrity Level:

MEDIUM

Description:

Windows Defender application

Exit code:

Version:

10.0.19041.844 (WinBuild.160101.0800)

Modules

Images
c:\windows\systemapps\microsoft.windows.sechealthui_cw5n1h2txyewy\sechealthui.exe
c:\windows\system32\ntdll.dll
c:\windows\system32\kernel32.dll
c:\windows\system32\kernelbase.dll
c:\windows\system32\combase.dll
c:\windows\system32\ucrtbase.dll
c:\windows\system32\rpcrt4.dll
c:\windows\system32\oleaut32.dll
c:\windows\system32\msvcp_win.dll
c:\windows\system32\wincorlib.dll

2516

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

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

explorer.exe

User:

admin

Integrity Level:

MEDIUM

Exit code:

Modules

Images
c:\users\admin\appdata\local\temp\client.exe
c:\windows\syswow64\ntdll.dll
c:\windows\system32\wow64.dll
c:\windows\system32\wow64win.dll
c:\windows\system32\ntdll.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

NjRat

(PID) Process(2516) Client.exe

C2levels-yemen.at.ply.gg

Ports1177

BotnetMyBot

Options

Auto-run registry keySoftware\Microsoft\Windows\CurrentVersion\Run\4b025930843096e2342acc36574f9903

SplitterY262SUCZ4UJJ

Version0.7d

3944

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

C:\Windows\System32\conhost.exe

—

netsh.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\ntdll.dll
c:\windows\system32\conhost.exe
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

3964

C:\Windows\System32\SecurityHealthHost.exe {E041C90B-68BA-42C9-991E-477B73A75C90} -Embedding

C:\Windows\System32\SecurityHealthHost.exe

—

svchost.exe

User:

admin

Company:

Microsoft Corporation

Integrity Level:

MEDIUM

Description:

Windows Security Health Host

Exit code:

Version:

4.18.1907.16384 (WinBuild.160101.0800)

Modules

Images
c:\windows\system32\securityhealthhost.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\combase.dll
c:\windows\system32\rpcrt4.dll
c:\windows\system32\wintrust.dll
c:\windows\system32\crypt32.dll

5672

C:\WINDOWS\System32\slui.exe -Embedding

C:\Windows\System32\slui.exe

—

svchost.exe

User:

admin

Company:

Microsoft Corporation

Integrity Level:

MEDIUM

Description:

Windows Activation Client

Exit code:

Version:

10.0.19041.1 (WinBuild.160101.0800)

Modules

Images
c:\windows\system32\slui.exe
c:\windows\system32\ntdll.dll
c:\windows\system32\kernelbase.dll
c:\windows\system32\kernel32.dll
c:\windows\system32\msvcrt.dll
c:\windows\system32\advapi32.dll
c:\windows\system32\sechost.dll
c:\windows\system32\rpcrt4.dll
c:\windows\system32\user32.dll
c:\windows\system32\win32u.dll

7000

C:\Windows\System32\SecurityHealthHost.exe {E041C90B-68BA-42C9-991E-477B73A75C90} -Embedding

C:\Windows\System32\SecurityHealthHost.exe

—

svchost.exe

User:

admin

Company:

Microsoft Corporation

Integrity Level:

MEDIUM

Description:

Windows Security Health Host

Exit code:

Version:

4.18.1907.16384 (WinBuild.160101.0800)

Modules

Images
c:\windows\system32\securityhealthhost.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\combase.dll
c:\windows\system32\rpcrt4.dll
c:\windows\system32\wintrust.dll
c:\windows\system32\msvcrt.dll

7028

C:\Windows\System32\SecurityHealthHost.exe {E041C90B-68BA-42C9-991E-477B73A75C90} -Embedding

C:\Windows\System32\SecurityHealthHost.exe

—

svchost.exe

User:

admin

Company:

Microsoft Corporation

Integrity Level:

MEDIUM

Description:

Windows Security Health Host

Exit code:

Version:

4.18.1907.16384 (WinBuild.160101.0800)

Modules

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

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Total events

3 138

Read events

3 034

Write events

104

Delete events

Modification events


(PID) Process:	(2516) Client.exe	Key:	HKEY_CURRENT_USER\SOFTWARE\Microsoft\Windows\CurrentVersion\Run
Operation:	write	Name:	4b025930843096e2342acc36574f9903
Value: "C:\Users\admin\AppData\Local\Temp\Client.exe" ..

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Executable files

Suspicious files

Text files

Unknown types

Dropped files

PID	Process	Filename		Type
2516	Client.exe	C:\Users\admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\4b025930843096e2342acc36574f9903.exe		executable
		MD5:617342105AF6FED5049BD6AC37993BEF	SHA256:FCB13FF72E371A91A7B0CBFDCB5F9AE66889FADAA5874050B7BF7829480C0CD9

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
4736	SearchApp.exe	GET	200	192.229.221.95:80	http://ocsp.digicert.com/MFEwTzBNMEswSTAJBgUrDgMCGgUABBTBL0V27RVZ7LBduom%2FnYB45SPUEwQU5Z1ZMIJHWMys%2BghUNoZ7OrUETfACEA8Ull8gIGmZT9XHrHiJQeI%3D	US	der	1.47 Kb	whitelisted
4736	SearchApp.exe	GET	200	192.229.221.95:80	http://ocsp.digicert.com/MFEwTzBNMEswSTAJBgUrDgMCGgUABBQ50otx%2Fh0Ztl%2Bz8SiPI7wEWVxDlQQUTiJUIBiV5uNu5g%2F6%2BrkS7QYXjzkCEA177el9ggmWelJjG4vdGL0%3D	US	der	471 b	whitelisted
3740	SIHClient.exe	GET	200	88.221.169.152:80	http://www.microsoft.com/pkiops/crl/Microsoft%20ECC%20Product%20Root%20Certificate%20Authority%202018.crl	unknown	der	418 b	whitelisted
3740	SIHClient.exe	GET	200	88.221.169.152:80	http://www.microsoft.com/pkiops/crl/Microsoft%20ECC%20Update%20Secure%20Server%20CA%202.1.crl	unknown	binary	409 b	whitelisted

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

Connections

PID	Process	IP	Domain	ASN	CN	Reputation
5756	svchost.exe	40.126.32.76:443	—	MICROSOFT-CORP-MSN-AS-BLOCK	NL	whitelisted
—	—	40.126.32.76:443	—	MICROSOFT-CORP-MSN-AS-BLOCK	NL	whitelisted
2516	Client.exe	209.25.141.180:1177	levels-yemen.at.ply.gg	PLAYIT-GG	US	malicious
—	—	51.104.136.2:443	settings-win.data.microsoft.com	MICROSOFT-CORP-MSN-AS-BLOCK	IE	whitelisted
—	—	4.231.128.59:443	settings-win.data.microsoft.com	MICROSOFT-CORP-MSN-AS-BLOCK	IE	whitelisted
4736	SearchApp.exe	2.16.187.145:443	—	Akamai International B.V.	DE	suspicious
4392	svchost.exe	20.123.104.105:443	licensing.mp.microsoft.com	MICROSOFT-CORP-MSN-AS-BLOCK	IE	unknown
3740	SIHClient.exe	88.221.169.152:80	www.microsoft.com	AKAMAI-AS	DE	whitelisted
3740	SIHClient.exe	20.242.39.171:443	fe3cr.delivery.mp.microsoft.com	MICROSOFT-CORP-MSN-AS-BLOCK	US	whitelisted
3740	SIHClient.exe	20.12.23.50:443	slscr.update.microsoft.com	MICROSOFT-CORP-MSN-AS-BLOCK	US	whitelisted

DNS requests

Domain	IP	Reputation
settings-win.data.microsoft.com	51.104.136.2 4.231.128.59	whitelisted
activation-v2.sls.microsoft.com	52.161.91.37	whitelisted
levels-yemen.at.ply.gg	209.25.141.180	malicious
licensing.mp.microsoft.com	20.123.104.105	whitelisted
nexusrules.officeapps.live.com	52.109.13.64	whitelisted
slscr.update.microsoft.com	20.12.23.50	whitelisted
www.microsoft.com	88.221.169.152	whitelisted
fe3cr.delivery.mp.microsoft.com	20.242.39.171	whitelisted
r.bing.com	92.123.104.34 92.123.104.38	whitelisted
www.bing.com	92.123.104.38 92.123.104.34	whitelisted

Threats

PID	Process	Class	Message
—	—	Potentially Bad Traffic	ET INFO playit .gg Tunneling Domain in DNS Lookup

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No debug info

General Info

Client.exe

617342105AF6FED5049BD6AC37993BEF

6F7721FAAA764A0C2237E39DC2F221D6D5BD51A5

FCB13FF72E371A91A7B0CBFDCB5F9AE66889FADAA5874050B7BF7829480C0CD9

768:uqfFtStrFZczxX6aiALG39Vf1vyUUQmIDUu0tiTrj:9yqp4VpvUQVk6j

Software environment set and analysis options

Launch configuration

Software preset

Behavior activities

MALICIOUS

NJRAT detected by memory dumps

Create files in the Startup directory

Changes the autorun value in the registry

NjRAT is detected

SUSPICIOUS

Uses NETSH.EXE to add a firewall rule or allowed programs

Connects to unusual port

Executable content was dropped or overwritten

INFO

Checks supported languages

The process checks LSA protection

Creates files or folders in the user directory

Reads the machine GUID from the registry

Reads the computer name

[YARA] Firewall manipulation strings were found

Reads Environment values

Malware configuration

NjRat

Static information

TRiD

EXIF

EXE

Summary

DOS Header

PE Headers

Sections

Resources

Imports

Video and screenshots

Processes

Behavior graph

Specs description

Process information

Information

Modules

Information

Modules

Information

Modules

Malware configuration

NjRat

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