Malware analysis Runtime Broker.exe Malicious activity

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File name:	Runtime Broker.exe
Full analysis:	https://app.any.run/tasks/b29db4e6-56d8-4f9c-beaa-dd9e2e2544c9
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:	August 17, 2018, 10:10:21
OS:	Windows 7 Professional Service Pack 1 (build: 7601, 32 bit)
Tags:	rat njrat bladabindi
Indicators:
MIME:	application/x-dosexec
File info:	PE32 executable (GUI) Intel 80386 Mono/.Net assembly, for MS Windows
MD5:	3384B2BF0399898ACA72B17D8C2CFC0D
SHA1:	CF49C090181A33BEE2248BA9A0B8A9D6EC8775E3
SHA256:	C4016AF19CFF0CFE103EED67D93A7D5FDFD01CA433CB71460A4463107443E210
SSDEEP:	768:TKn4dPdolrJLqcxOOZHAKou0B2NmlKeIht3IQhrtK42iPD6A3V6a8IKR:TiBdObpKoug4tt3IYzL3V5AR

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 8.0.7601.17514 undefined
Adobe Acrobat Reader DC MUI (15.007.20033)
Adobe Flash Player 27 ActiveX (27.0.0.187)
Adobe Flash Player 27 NPAPI (27.0.0.187)
Adobe Flash Player 27 PPAPI (27.0.0.187)
CCleaner (5.35)
FileZilla Client 3.31.0 (3.31.0)
Google Chrome (61.0.3163.91)
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++ 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++ 2013 Redistributable (x86) - 12.0.40660 (12.0.40660.0)
Microsoft Visual C++ 2013 x86 Additional Runtime - 12.0.40660 (12.0.40660)
Microsoft Visual C++ 2013 x86 Minimum Runtime - 12.0.40660 (12.0.40660)
Microsoft Visual C++ 2017 Redistributable (x86) - 14.11.25325 (14.11.25325.0)
Microsoft Visual C++ 2017 x86 Additional Runtime - 14.11.25325 (14.11.25325)
Microsoft Visual C++ 2017 x86 Minimum Runtime - 14.11.25325 (14.11.25325)
Mozilla Firefox 55.0.3 (x86 en-US) (55.0.3)
Mozilla Maintenance Service (55.0.3)
Notepad++ (32-bit x86) (7.5.1)
Opera 12.15 (12.15.1748)
Skype™ 7.39 (7.39.102)
Steam (2.10.91.91)
VLC media player (2.2.6)
WinRAR 5.60 (32-bit) (5.60.0)

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

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MALICIOUS
- Changes the autorun value in the registry
  - RuntimeBroker.exe (PID: 1336)
- njRAT was detected
  - RuntimeBroker.exe (PID: 1336)
- Writes to a start menu file
  - RuntimeBroker.exe (PID: 1336)
SUSPICIOUS
- Executable content was dropped or overwritten
  - Runtime Broker.exe (PID: 1696)
  - RuntimeBroker.exe (PID: 1336)
- Uses NETSH.EXE for network configuration
  - RuntimeBroker.exe (PID: 1336)
- Starts itself from another location
  - Runtime Broker.exe (PID: 1696)
- Creates files in the user directory
  - RuntimeBroker.exe (PID: 1336)
- Connects to unusual port
  - RuntimeBroker.exe (PID: 1336)
INFO
- Reads settings of System Certificates
  - Runtime Broker.exe (PID: 1696)
  - RuntimeBroker.exe (PID: 1336)

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.) (63.1)
.exe	\|	Win64 Executable (generic) (23.8)
.dll	\|	Win32 Dynamic Link Library (generic) (5.6)
.exe	\|	Win32 Executable (generic) (3.8)
.exe	\|	Generic Win/DOS Executable (1.7)

EXIF

EXE

MachineType:	Intel 386 or later, and compatibles
TimeStamp:	2018:07:27 20:40:10+02:00
PEType:	PE32
LinkerVersion:	8
CodeSize:	46080
InitializedDataSize:	2560
UninitializedDataSize:	-
EntryPoint:	0xd23e
OSVersion:	4
ImageVersion:	-
SubsystemVersion:	4
Subsystem:	Windows GUI
FileVersionNumber:	1.0.0.1
ProductVersionNumber:	1.0.0.1
FileFlagsMask:	0x003f
FileFlags:	(none)
FileOS:	Win32
ObjectFileType:	Executable application
FileSubtype:	-
LanguageCode:	Neutral
CharacterSet:	Unicode
Comments:	Window® Runtime Broker
CompanyName:	Microsoft Inc
FileDescription:	Runtime Broker
FileVersion:	1.0.0.1
InternalName:	Runtime Broker.exe
LegalCopyright:	Copyright © 2001-2018
LegalTrademarks:	Windows® Visual Software
OriginalFileName:	Runtime Broker.exe
ProductName:	Runtime Broker
ProductVersion:	1.0.0.1
AssemblyVersion:	1.0.0.1

Summary

Architecture:	IMAGE_FILE_MACHINE_I386
Subsystem:	IMAGE_SUBSYSTEM_WINDOWS_GUI
Compilation Date:	27-Jul-2018 18:40:10
Comments:	Window® Runtime Broker
CompanyName:	Microsoft Inc
FileDescription:	Runtime Broker
FileVersion:	1.0.0.1
InternalName:	Runtime Broker.exe
LegalCopyright:	Copyright © 2001-2018
LegalTrademarks:	Windows® Visual Software
OriginalFilename:	Runtime Broker.exe
ProductName:	Runtime Broker
ProductVersion:	1.0.0.1
Assembly Version:	1.0.0.1

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:	27-Jul-2018 18:40:10
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	0x0000B244	0x0000B400	IMAGE_SCN_CNT_CODE, IMAGE_SCN_MEM_EXECUTE, IMAGE_SCN_MEM_READ	6.05803
.rsrc	0x0000E000	0x00000800	0x00000800	IMAGE_SCN_CNT_INITIALIZED_DATA, IMAGE_SCN_MEM_READ	3.54405
.reloc	0x00010000	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

Imports


mscoree.dll

No data.

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All screenshots are available in the full report

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Total processes

Monitored processes

Malicious processes

Suspicious processes

Behavior graph

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Process information

PID

CMD

Path

Indicators

Parent process

1336

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

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

Runtime Broker.exe

User:

admin

Company:

Microsoft Inc

Integrity Level:

MEDIUM

Description:

Runtime Broker

Exit code:

Version:

1.0.0.1

Modules

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

1696

"C:\Users\admin\AppData\Local\Temp\Runtime Broker.exe"

C:\Users\admin\AppData\Local\Temp\Runtime Broker.exe

explorer.exe

User:

admin

Company:

Microsoft Inc

Integrity Level:

MEDIUM

Description:

Runtime Broker

Exit code:

Version:

1.0.0.1

Modules

Images
c:\users\admin\appdata\local\temp\runtime broker.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

2640

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

C:\Windows\system32\netsh.exe

—

RuntimeBroker.exe

User:

admin

Company:

Microsoft Corporation

Integrity Level:

MEDIUM

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

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Total events

583

Read events

428

Write events

155

Delete events

Modification events


(PID) Process:	(1696) Runtime Broker.exe	Key:	HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Tracing\Runtime Broker_RASAPI32
Operation:	write	Name:	EnableFileTracing
Value: 0
(PID) Process:	(1696) Runtime Broker.exe	Key:	HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Tracing\Runtime Broker_RASAPI32
Operation:	write	Name:	EnableConsoleTracing
Value: 0
(PID) Process:	(1696) Runtime Broker.exe	Key:	HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Tracing\Runtime Broker_RASAPI32
Operation:	write	Name:	FileTracingMask
Value: 4294901760
(PID) Process:	(1696) Runtime Broker.exe	Key:	HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Tracing\Runtime Broker_RASAPI32
Operation:	write	Name:	ConsoleTracingMask
Value: 4294901760
(PID) Process:	(1696) Runtime Broker.exe	Key:	HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Tracing\Runtime Broker_RASAPI32
Operation:	write	Name:	MaxFileSize
Value: 1048576
(PID) Process:	(1696) Runtime Broker.exe	Key:	HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Tracing\Runtime Broker_RASAPI32
Operation:	write	Name:	FileDirectory
Value: %windir%\tracing
(PID) Process:	(1696) Runtime Broker.exe	Key:	HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Tracing\Runtime Broker_RASMANCS
Operation:	write	Name:	EnableFileTracing
Value: 0
(PID) Process:	(1696) Runtime Broker.exe	Key:	HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Tracing\Runtime Broker_RASMANCS
Operation:	write	Name:	EnableConsoleTracing
Value: 0
(PID) Process:	(1696) Runtime Broker.exe	Key:	HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Tracing\Runtime Broker_RASMANCS
Operation:	write	Name:	FileTracingMask
Value: 4294901760
(PID) Process:	(1696) Runtime Broker.exe	Key:	HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Tracing\Runtime Broker_RASMANCS
Operation:	write	Name:	ConsoleTracingMask
Value: 4294901760

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Executable files

Suspicious files

Text files

Unknown types

Dropped files

PID	Process	Filename		Type
1696	Runtime Broker.exe	C:\Users\admin\AppData\Local\Temp\RuntimeBroker.exe		executable
		MD5:—	SHA256:—
1336	RuntimeBroker.exe	C:\Users\admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\e5bbfe7cecdeb406e9f9ced12489c089.exe		executable
		MD5:—	SHA256:—

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HTTP(S) requests

TCP/UDP connections

DNS requests

Threats

HTTP requests

No HTTP requests

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Connections

PID	Process	IP	Domain	ASN	CN	Reputation
1696	Runtime Broker.exe	104.20.208.21:443	pastebin.com	Cloudflare Inc	US	shared
1336	RuntimeBroker.exe	104.20.208.21:443	pastebin.com	Cloudflare Inc	US	shared
1336	RuntimeBroker.exe	129.56.173.37:56163	webconn.ddns.net	AS-NATCOM	NG	unknown

DNS requests

Domain	IP	Reputation
pastebin.com	104.20.208.21 104.20.209.21	malicious
webconn.ddns.net	129.56.173.37	malicious
dns.msftncsi.com	131.107.255.255	shared

Threats

No threats detected

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No debug info

General Info

Runtime Broker.exe

3384B2BF0399898ACA72B17D8C2CFC0D

CF49C090181A33BEE2248BA9A0B8A9D6EC8775E3

C4016AF19CFF0CFE103EED67D93A7D5FDFD01CA433CB71460A4463107443E210

768:TKn4dPdolrJLqcxOOZHAKou0B2NmlKeIht3IQhrtK42iPD6A3V6a8IKR:TiBdObpKoug4tt3IYzL3V5AR

Software environment set and analysis options

Launch configuration

Software preset

Hotfixes

Behavior activities

MALICIOUS

Changes the autorun value in the registry

njRAT was detected

Writes to a start menu file

SUSPICIOUS

Executable content was dropped or overwritten

Uses NETSH.EXE for network configuration

Starts itself from another location

Creates files in the user directory

Connects to unusual port

INFO

Reads settings of System Certificates

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

Registry activity

Modification events

Files activity

Dropped files

Network activity

HTTP requests

Connections

DNS requests

Threats

Debug output strings