Malware analysis nj.exe Malicious activity | ANY.RUN

Add for printing

download:	nj.exe
Full analysis:	https://app.any.run/tasks/6c3974b0-d62f-4687-baa2-2131b340c0b7
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:	July 12, 2018, 19:52:26
OS:	Windows 7 Professional Service Pack 1 (build: 7601, 32 bit)
Tags:	njrat rat
Indicators:
MIME:	application/x-dosexec
File info:	PE32 executable (GUI) Intel 80386 Mono/.Net assembly, for MS Windows
MD5:	7B777263642CD694415ACCDB45B19DE6
SHA1:	157C6B950A34E59A575C943955D4A6347F484B2B
SHA256:	23CE7D714E8CCD6FE40A1B10803B587E2CF4DBB61E8EE4624654D7FD2C38BDF7
SSDEEP:	1536:SoqdjhPaj/r8YOQLFCdZt5W8SOMIOGZ+qqeydYNAX5Jo/FRKP6ecRiTn:Od0jjNfgZt5Wpkee/C

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:: 300 seconds
Heavy Evasion option:: off
Network geolocation:: off
Additional time used:: 240 seconds
MITM proxy:: off
Privacy:: Public submission
Fakenet option:: off
Route via Tor:: off
Autoconfirmation of UAC:: on
Network:

Software preset

Internet Explorer 8.0.7601.17514 undefined
7-Zip 16.04 (16.04)
Adobe Acrobat Reader DC MUI (15.007.20033)
Adobe Flash Player 27 ActiveX (27.0.0.187)
CCleaner (5.35)
FileZilla Client 3.31.0 (3.31.0)
Google Chrome (61.0.3163.100)
Google Update Helper (1.3.33.5)
Java 8 Update 92 (8.0.920.14)
Java Auto Updater (2.8.92.14)
Microsoft .NET Framework 4.6.1 (4.6.01055)
Microsoft Office Access MUI (English) 2010 (14.0.6029.1000)
Microsoft Office Access Setup Metadata MUI (English) 2010 (14.0.6029.1000)
Microsoft Office Excel MUI (English) 2010 (14.0.6029.1000)
Microsoft Office Home and Business 2010 (14.0.6029.1000)
Microsoft Office OneNote MUI (English) 2010 (14.0.6029.1000)
Microsoft Office Outlook MUI (English) 2010 (14.0.6029.1000)
Microsoft Office PowerPoint MUI (English) 2010 (14.0.6029.1000)
Microsoft Office Proof (English) 2010 (14.0.6029.1000)
Microsoft Office Proof (French) 2010 (14.0.6029.1000)
Microsoft Office Proof (Spanish) 2010 (14.0.6029.1000)
Microsoft Office Proofing (English) 2010 (14.0.6029.1000)
Microsoft Office Publisher MUI (English) 2010 (14.0.6029.1000)
Microsoft Office Shared MUI (English) 2010 (14.0.6029.1000)
Microsoft Office Shared Setup Metadata MUI (English) 2010 (14.0.6029.1000)
Microsoft Office Single Image 2010 (14.0.6029.1000)
Microsoft Office Word MUI (English) 2010 (14.0.6029.1000)
Microsoft Visual C++ 2005 Redistributable (8.0.61001)
Microsoft Visual C++ 2008 Redistributable - x86 9.0.30729.6161 (9.0.30729.6161)
Microsoft Visual C++ 2010 x86 Redistributable - 10.0.40219 (10.0.40219)
Microsoft Visual C++ 2012 Redistributable (x86) - 11.0.61030 (11.0.61030.0)
Microsoft Visual C++ 2012 x86 Additional Runtime - 11.0.61030 (11.0.61030)
Microsoft Visual C++ 2012 x86 Minimum Runtime - 11.0.61030 (11.0.61030)
Microsoft Visual C++ 2013 Redistributable (x86) - 12.0.30501 (12.0.30501.0)
Microsoft Visual C++ 2013 x86 Additional Runtime - 12.0.21005 (12.0.21005)
Microsoft Visual C++ 2013 x86 Minimum Runtime - 12.0.21005 (12.0.21005)
Microsoft Visual C++ 2017 Redistributable (x86) - 14.12.25810 (14.12.25810.0)
Microsoft Visual C++ 2017 x86 Additional Runtime - 14.12.25810 (14.12.25810)
Microsoft Visual C++ 2017 x86 Minimum Runtime - 14.12.25810 (14.12.25810)
Mozilla Firefox 55.0.3 (x86 en-US) (55.0.3)
Mozilla Maintenance Service (55.0.3)
Notepad++ (32-bit x86) (7.5.4)
Opera 12.15 (12.15.1748)
Skype™ 7.39 (7.39.102)
VLC media player (2.2.6)

Hotfixes

Client LanguagePack Package
Client Refresh LanguagePack Package
CodecPack Basic Package
Foundation Package
IE Troubleshooters Package
InternetExplorer Optional Package
KB2534111
KB2999226
KB976902
LocalPack AU Package
LocalPack CA Package
LocalPack GB Package
LocalPack US Package
LocalPack ZA Package
ProfessionalEdition
UltimateEdition
WinMan WinIP Package TopLevel

Add for printing

MALICIOUS
- Changes the autorun value in the registry
  - server.exe (PID: 3868)
  - server.exe (PID: 3164)
SUSPICIOUS
- Application launched itself
  - server.exe (PID: 3868)
  - nj.exe (PID: 964)
  - server.exe (PID: 3164)
- Uses NETSH.EXE for network configuration
  - server.exe (PID: 3388)
- Creates files in the user directory
  - nj.exe (PID: 3312)
- Starts itself from another location
  - nj.exe (PID: 3312)
- Executable content was dropped or overwritten
  - nj.exe (PID: 3312)
- Connects to unusual port
  - server.exe (PID: 3388)
INFO
No info indicators.

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

Add for printing

No Malware configuration.

Add for printing

TRiD

.exe	\|	Generic CIL Executable (.NET, Mono, etc.) (82.9)
.dll	\|	Win32 Dynamic Link Library (generic) (7.4)
.exe	\|	Win32 Executable (generic) (5.1)
.exe	\|	Generic Win/DOS Executable (2.2)
.exe	\|	DOS Executable Generic (2.2)

EXIF

EXE

AssemblyVersion:	6.2.0.9
ProductVersion:	6.2.0.9
ProductName:	SoftEther VPN
LegalCopyright:	Copyright (C) 2012-2016 SoftEther VPN Project. All Rights Reserved.
FileVersion:	6.2.0.9
FileDescription:	SoftEther VPN
CharacterSet:	Unicode
LanguageCode:	Neutral
FileSubtype:	-
ObjectFileType:	Executable application
FileOS:	Win32
FileFlags:	(none)
FileFlagsMask:	0x0000
ProductVersionNumber:	6.2.0.9
FileVersionNumber:	6.2.0.9
Subsystem:	Windows GUI
SubsystemVersion:	4
ImageVersion:	-
OSVersion:	4
EntryPoint:	0xf74e
UninitializedDataSize:	-
InitializedDataSize:	173056
CodeSize:	55296
LinkerVersion:	8
PEType:	PE32
TimeStamp:	2018:05:19 00:40:08+02:00
MachineType:	Intel 386 or later, and compatibles

Summary

Architecture:	IMAGE_FILE_MACHINE_I386
Subsystem:	IMAGE_SUBSYSTEM_WINDOWS_GUI
Compilation Date:	18-May-2018 22:40:08
Detected languages:	English - United States
FileDescription:	SoftEther VPN
FileVersion:	6.2.0.9
LegalCopyright:	Copyright (C) 2012-2016 SoftEther VPN Project. All Rights Reserved.
ProductName:	SoftEther VPN
ProductVersion:	6.2.0.9
Assembly Version:	6.2.0.9

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:	18-May-2018 22:40:08
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	0x0000D754	0x0000D800	IMAGE_SCN_CNT_CODE, IMAGE_SCN_MEM_EXECUTE, IMAGE_SCN_MEM_READ	7.85862
.rsrc	0x00010000	0x0002A142	0x0002A200	IMAGE_SCN_CNT_INITIALIZED_DATA, IMAGE_SCN_MEM_READ	3.50977
.reloc	0x0003C000	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	5.00112	490	UNKNOWN	UNKNOWN	RT_MANIFEST
2	2.31299	67624	UNKNOWN	UNKNOWN	RT_ICON
3	3.13217	38056	UNKNOWN	UNKNOWN	RT_ICON
4	3.03533	21640	UNKNOWN	UNKNOWN	RT_ICON
5	2.56755	16936	UNKNOWN	UNKNOWN	RT_ICON
6	3.37577	9640	UNKNOWN	UNKNOWN	RT_ICON
7	2.96731	4264	UNKNOWN	UNKNOWN	RT_ICON
8	3.81285	2440	UNKNOWN	UNKNOWN	RT_ICON
9	3.48087	1128	UNKNOWN	UNKNOWN	RT_ICON

Imports


mscoree.dll

No data.

Add for printing

All screenshots are available in the full report

Add for printing

Total processes

Monitored processes

Malicious processes

Suspicious processes

Behavior graph

Click at the process to see the details

Process information

PID

CMD

Path

Indicators

Parent process

964

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

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

—

explorer.exe

User:

admin

Integrity Level:

MEDIUM

Description:

SoftEther VPN

Exit code:

Version:

6.2.0.9

Modules

Images
c:\users\admin\appdata\local\temp\nj.exe
c:\systemroot\system32\ntdll.dll
c:\windows\system32\mscoree.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\microsoft.net\framework\v4.0.30319\mscoreei.dll

2024

"C:\Users\admin\AppData\Roaming\server.exe"

C:\Users\admin\AppData\Roaming\server.exe

—

server.exe

User:

admin

Integrity Level:

MEDIUM

Description:

SoftEther VPN

Exit code:

Version:

6.2.0.9

Modules

Images
c:\users\admin\appdata\roaming\server.exe
c:\systemroot\system32\ntdll.dll
c:\windows\system32\mscoree.dll
c:\windows\system32\kernel32.dll
c:\windows\system32\kernelbase.dll
c:\windows\system32\msvcrt.dll
c:\windows\system32\advapi32.dll
c:\windows\system32\sechost.dll
c:\windows\system32\rpcrt4.dll
c:\windows\microsoft.net\framework\v4.0.30319\mscoreei.dll

3112

netsh firewall add allowedprogram "C:\Users\admin\AppData\Roaming\server.exe" "server.exe" ENABLE

C:\Windows\system32\netsh.exe

—

server.exe

User:

admin

Company:

Microsoft Corporation

Integrity Level:

HIGH

Description:

Network Command Shell

Exit code:

Version:

6.1.7600.16385 (win7_rtm.090713-1255)

Modules

Images
c:\windows\system32\netsh.exe
c:\systemroot\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\credui.dll
c:\windows\system32\user32.dll

3164

"C:\Users\admin\AppData\Roaming\server.exe"

C:\Users\admin\AppData\Roaming\server.exe

nj.exe

User:

admin

Integrity Level:

MEDIUM

Description:

SoftEther VPN

Exit code:

Version:

6.2.0.9

Modules

Images
c:\users\admin\appdata\roaming\server.exe
c:\systemroot\system32\ntdll.dll
c:\windows\system32\mscoree.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\microsoft.net\framework\v4.0.30319\mscoreei.dll

3312

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

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

nj.exe

User:

admin

Integrity Level:

MEDIUM

Description:

SoftEther VPN

Exit code:

Version:

6.2.0.9

Modules

Images
c:\users\admin\appdata\local\temp\nj.exe
c:\systemroot\system32\ntdll.dll
c:\windows\system32\mscoree.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\microsoft.net\framework\v4.0.30319\mscoreei.dll

3388

"C:\Users\admin\AppData\Roaming\server.exe"

C:\Users\admin\AppData\Roaming\server.exe

server.exe

User:

admin

Integrity Level:

HIGH

Description:

SoftEther VPN

Exit code:

Version:

6.2.0.9

Modules

Images
c:\users\admin\appdata\roaming\server.exe
c:\systemroot\system32\ntdll.dll
c:\windows\system32\mscoree.dll
c:\windows\system32\kernelbase.dll
c:\windows\system32\kernel32.dll
c:\windows\system32\advapi32.dll
c:\windows\system32\msvcrt.dll
c:\windows\system32\sechost.dll
c:\windows\system32\rpcrt4.dll
c:\windows\microsoft.net\framework\v4.0.30319\mscoreei.dll

3868

"C:\Users\admin\AppData\Roaming\server.exe"

C:\Users\admin\AppData\Roaming\server.exe

server.exe

User:

admin

Integrity Level:

HIGH

Description:

SoftEther VPN

Exit code:

Version:

6.2.0.9

Modules

Images
c:\users\admin\appdata\roaming\server.exe
c:\systemroot\system32\ntdll.dll
c:\windows\system32\mscoree.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\microsoft.net\framework\v4.0.30319\mscoreei.dll

Add for printing

Total events

829

Read events

766

Write events

Delete events

Modification events


(PID) Process:	(3312) nj.exe	Key:	HKEY_CURRENT_USER
Operation:	write	Name:	di
Value: !
(PID) Process:	(3312) nj.exe	Key:	HKEY_CURRENT_USER\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap
Operation:	write	Name:	UNCAsIntranet
Value: 0
(PID) Process:	(3312) nj.exe	Key:	HKEY_CURRENT_USER\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap
Operation:	write	Name:	AutoDetect
Value: 1
(PID) Process:	(3164) server.exe	Key:	HKEY_CURRENT_USER\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap
Operation:	write	Name:	UNCAsIntranet
Value: 0
(PID) Process:	(3164) server.exe	Key:	HKEY_CURRENT_USER\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap
Operation:	write	Name:	AutoDetect
Value: 1
(PID) Process:	(3388) server.exe	Key:	HKEY_CURRENT_USER
Operation:	write	Name:	di
Value: !
(PID) Process:	(3868) server.exe	Key:	HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Run
Operation:	write	Name:	RegSvc
Value: "ApplicationData\RegSvc.exe.exe"
(PID) Process:	(3388) server.exe	Key:	HKEY_CURRENT_USER\Environment
Operation:	write	Name:	SEE_MASK_NOZONECHECKS
Value: 1
(PID) Process:	(3164) server.exe	Key:	HKEY_CURRENT_USER\Software\Microsoft\Windows\CurrentVersion\Run
Operation:	write	Name:	RegSvc
Value: "ApplicationData\RegSvc.exe.exe"
(PID) Process:	(3112) netsh.exe	Key:	HKEY_CLASSES_ROOT\Local Settings\MuiCache\93\52C64B7E
Operation:	write	Name:	LanguageList
Value: en-US

Add for printing

Executable files

Suspicious files

Text files

Unknown types

Dropped files

PID	Process	Filename		Type
3312	nj.exe	C:\Users\admin\AppData\Roaming\server.exe		executable
		MD5:—	SHA256:—

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

Add for printing

HTTP(S) requests

TCP/UDP connections

DNS requests

Threats

HTTP requests

No HTTP requests

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

Connections

PID	Process	IP	Domain	ASN	CN	Reputation
3388	server.exe	209.126.76.82:1604	cb4cb4.ddns.net	CDM	US	malicious

DNS requests

Domain	IP	Reputation
cb4cb4.ddns.net	209.126.76.82	malicious

Threats

No threats detected

Add for printing

No debug info

General Info

nj.exe

7B777263642CD694415ACCDB45B19DE6

157C6B950A34E59A575C943955D4A6347F484B2B

23CE7D714E8CCD6FE40A1B10803B587E2CF4DBB61E8EE4624654D7FD2C38BDF7

1536:SoqdjhPaj/r8YOQLFCdZt5W8SOMIOGZ+qqeydYNAX5Jo/FRKP6ecRiTn:Od0jjNfgZt5Wpkee/C

Software environment set and analysis options

Launch configuration

Software preset

Hotfixes

Behavior activities

MALICIOUS

Changes the autorun value in the registry

SUSPICIOUS

Application launched itself

Uses NETSH.EXE for network configuration

Creates files in the user directory

Starts itself from another location

Executable content was dropped or overwritten

Connects to unusual port

INFO

Malware configuration

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

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