File name:

RuntimeBroker.exe

Full analysis: https://app.any.run/tasks/c755fdb4-7e60-41ef-bf84-294a592fff41
Verdict: Malicious activity
Threats:

AsyncRAT is a RAT that can monitor and remotely control infected systems. This malware was introduced on Github as a legitimate open-source remote administration software, but hackers use it for its many powerful malicious functions.

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Analysis date: January 03, 2025, 18:15:44
OS: Windows 10 Professional (build: 19045, 64 bit)
Tags:
asyncrat
Indicators:
MIME: application/vnd.microsoft.portable-executable
File info: PE32 executable (GUI) Intel 80386 Mono/.Net assembly, for MS Windows, 3 sections
MD5:

F48DAD5D1F222FFBAD834E1735942077

SHA1:

450940DEF40AE8CF9B48E7FED829F43802F9A984

SHA256:

2039DFBCCACC781852E958FD710D12DBD26586C379E97B192C82B0343EE25AE0

SSDEEP:

1536:RAWQXwZnwYuLOC1GqB0db6nXa2ySaYm2mHL3+:RAWQXwZnwYpqB2b6npyJLu

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.

  • MALICIOUS

    • Changes the autorun value in the registry

      • RuntimeBroker.exe (PID: 3736)

    • ASYNCRAT has been detected (YARA)

      • RuntimeBroker.exe (PID: 5400)

  • SUSPICIOUS

    • Process drops legitimate windows executable

      • RuntimeBroker.exe (PID: 3736)

    • Starts a Microsoft application from unusual location

      • RuntimeBroker.exe (PID: 3736)

    • Executing commands from a ".bat" file

      • RuntimeBroker.exe (PID: 3736)

    • Starts CMD.EXE for commands execution

      • RuntimeBroker.exe (PID: 3736)

    • Executable content was dropped or overwritten

      • RuntimeBroker.exe (PID: 3736)

    • Uses TIMEOUT.EXE to delay execution

      • cmd.exe (PID: 5748)

    • The executable file from the user directory is run by the CMD process

      • RuntimeBroker.exe (PID: 5400)

    • Connects to unusual port

      • RuntimeBroker.exe (PID: 5400)

  • INFO

    • Reads the machine GUID from the registry

      • RuntimeBroker.exe (PID: 3736)
      • RuntimeBroker.exe (PID: 5400)

    • Checks supported languages

      • RuntimeBroker.exe (PID: 3736)
      • RuntimeBroker.exe (PID: 5400)

    • Reads the computer name

      • RuntimeBroker.exe (PID: 3736)
      • RuntimeBroker.exe (PID: 5400)

    • Creates files or folders in the user directory

      • RuntimeBroker.exe (PID: 3736)

    • Create files in a temporary directory

      • RuntimeBroker.exe (PID: 3736)
Find more information about signature artifacts and mapping to MITRE ATT&CK™ MATRIX at the full report
No Malware configuration.

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

MachineType: Intel 386 or later, and compatibles
TimeStamp: 2025:01:03 17:48:28+00:00
ImageFileCharacteristics: Executable, 32-bit
PEType: PE32
LinkerVersion: 8
CodeSize: 45568
InitializedDataSize: 3072
UninitializedDataSize: -
EntryPoint: 0xd07e
OSVersion: 4
ImageVersion: -
SubsystemVersion: 4
Subsystem: Windows GUI
FileVersionNumber: 6.2.19041.4355
ProductVersionNumber: 6.2.19041.4355
FileFlagsMask: 0x003f
FileFlags: (none)
FileOS: Win32
ObjectFileType: Executable application
FileSubtype: -
LanguageCode: Neutral
CharacterSet: Unicode
Comments: -
CompanyName: Microsoft Corporation
FileDescription: Runtime Broker
FileVersion: 6.2.19041.4355
InternalName: RuntimeBroker.exe
LegalCopyright: © Microsoft Corporation. All rights reserved.
LegalTrademarks: -
OriginalFileName: RuntimeBroker.exe
ProductName: Microsoft® Windows® Operating System
ProductVersion: 6.2.19041.4355
AssemblyVersion: 6.2.19041.4355
No data.
screenshot
All screenshots are available in the full report
All screenshots are available in the full report
Total processes
119
Monitored processes
6
Malicious processes
3
Suspicious processes
0

Behavior graph

Click at the process to see the details
start runtimebroker.exe cmd.exe no specs conhost.exe no specs timeout.exe no specs #ASYNCRAT runtimebroker.exe svchost.exe

Process information

PID
CMD
Path
Indicators
Parent process
2192C:\WINDOWS\system32\svchost.exe -k NetworkService -p -s DnscacheC:\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
2600\??\C:\WINDOWS\system32\conhost.exe 0xffffffff -ForceV1C:\Windows\System32\conhost.exe—cmd.exe
User:
admin
Company:
Microsoft Corporation
Integrity Level:
MEDIUM
Description:
Console Window Host
Exit code:
0
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
3736"C:\Users\admin\Desktop\RuntimeBroker.exe" C:\Users\admin\Desktop\RuntimeBroker.exe
explorer.exe
User:
admin
Company:
Microsoft Corporation
Integrity Level:
MEDIUM
Description:
Runtime Broker
Exit code:
0
Version:
6.2.19041.4355
Modules
Images
c:\users\admin\desktop\runtimebroker.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
5308timeout 3 C:\Windows\SysWOW64\timeout.exe—cmd.exe
User:
admin
Company:
Microsoft Corporation
Integrity Level:
MEDIUM
Description:
timeout - pauses command processing
Exit code:
0
Version:
10.0.19041.1 (WinBuild.160101.0800)
Modules
Images
c:\windows\syswow64\timeout.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
5400"C:\Users\admin\AppData\Roaming\RuntimeBroker.exe" C:\Users\admin\AppData\Roaming\RuntimeBroker.exe
cmd.exe
User:
admin
Company:
Microsoft Corporation
Integrity Level:
MEDIUM
Description:
Runtime Broker
Version:
6.2.19041.4355
Modules
Images
c:\users\admin\appdata\roaming\runtimebroker.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
5748C:\WINDOWS\system32\cmd.exe /c ""C:\Users\admin\AppData\Local\Temp\tmp75A0.tmp.bat""C:\Windows\SysWOW64\cmd.exe—RuntimeBroker.exe
User:
admin
Company:
Microsoft Corporation
Integrity Level:
MEDIUM
Description:
Windows Command Processor
Exit code:
1
Version:
10.0.19041.3636 (WinBuild.160101.0800)
Modules
Images
c:\windows\syswow64\cmd.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
Total events
875
Read events
874
Write events
1
Delete events
0

Modification events

(PID) Process:(3736) RuntimeBroker.exeKey:HKEY_CURRENT_USER\SOFTWARE\Microsoft\Windows\CurrentVersion\Run
Operation:writeName:RuntimeBroker
Value:
"C:\Users\admin\AppData\Roaming\RuntimeBroker.exe"
Executable files
1
Suspicious files
0
Text files
1
Unknown types
0

Dropped files

PID
Process
Filename
Type
3736RuntimeBroker.exeC:\Users\admin\AppData\Roaming\RuntimeBroker.exeexecutable
MD5:F48DAD5D1F222FFBAD834E1735942077
SHA256:2039DFBCCACC781852E958FD710D12DBD26586C379E97B192C82B0343EE25AE0
3736RuntimeBroker.exeC:\Users\admin\AppData\Local\Temp\tmp75A0.tmp.battext
MD5:3F81BFE1655DE1A660E064067666B59B
SHA256:7CE4F725653FD2D1EDEC1FD364B9649A60C3DD33447F935CD05A2D50138CE8CD
Download PCAP, analyze network streams, HTTP content and a lot more at the full report
HTTP(S) requests
2
TCP/UDP connections
22
DNS requests
8
Threats
2

HTTP requests

PID
Process
Method
HTTP Code
IP
URL
CN
Type
Size
Reputation
4712
MoUsoCoreWorker.exe
GET
200
2.16.164.72:80
http://crl.microsoft.com/pki/crl/products/MicRooCerAut2011_2011_03_22.crl
unknown
—
—
whitelisted
4712
MoUsoCoreWorker.exe
GET
200
95.101.149.131:80
http://www.microsoft.com/pkiops/crl/MicSecSerCA2011_2011-10-18.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
4712
MoUsoCoreWorker.exe
40.127.240.158:443
settings-win.data.microsoft.com
MICROSOFT-CORP-MSN-AS-BLOCK
IE
whitelisted
—
—
192.168.100.255:137
—
—
—
whitelisted
—
—
40.127.240.158:443
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
4
System
192.168.100.255:138
—
—
—
whitelisted
4712
MoUsoCoreWorker.exe
2.16.164.72:80
crl.microsoft.com
Akamai International B.V.
NL
unknown
4712
MoUsoCoreWorker.exe
95.101.149.131:80
www.microsoft.com
Akamai International B.V.
NL
whitelisted
3976
svchost.exe
40.127.240.158:443
settings-win.data.microsoft.com
MICROSOFT-CORP-MSN-AS-BLOCK
IE
whitelisted
5400
RuntimeBroker.exe
147.185.221.16:44574
impact-leeds.gl.at.ply.gg
PLAYIT-GG
US
suspicious

DNS requests

Domain
IP
Reputation
settings-win.data.microsoft.com
  • 40.127.240.158
  • 4.231.128.59
whitelisted
google.com
  • 142.250.185.174
whitelisted
crl.microsoft.com
  • 2.16.164.72
  • 2.16.164.97
  • 2.16.164.9
  • 2.16.164.81
  • 2.16.164.51
  • 2.16.164.17
  • 2.16.164.99
whitelisted
www.microsoft.com
  • 95.101.149.131
unknown
impact-leeds.gl.at.ply.gg
  • 147.185.221.16
unknown
self.events.data.microsoft.com
  • 20.42.73.27
whitelisted

Threats

PID
Process
Class
Message
2192
svchost.exe
Potentially Bad Traffic
ET INFO playit .gg Tunneling Domain in DNS Lookup
2192
svchost.exe
Misc activity
ET INFO Tunneling Service in DNS Lookup (* .ply .gg)
No debug info
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Reports
RuntimeBroker.exe