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Windows Analysis Report
mdnsNSP.dll

Overview

General Information

Sample name:	mdnsNSP.dll
Analysis ID:	1667900
MD5:	eaaa2b83c4764fdcfbee4a4d6546de92
SHA1:	961a7e7735ee8f07ca54fa7cbfb23399748f8174
SHA256:	043779b2c684699c89d6e8363d65baa9f31dff17d250059b56a8e3ae48c89b5b
Infos:

Detection

Score:	3
Range:	0 - 100
Confidence:	80%

Signatures

Creates a process in suspended mode (likely to inject code)

Creates or modifies windows services

May sleep (evasive loops) to hinder dynamic analysis

Modifies existing windows services

Program does not show much activity (idle)

Registers a DLL

Sample execution stops while process was sleeping (likely an evasion)

Classification

Process Tree

System is w10x64

loaddll64.exe (PID: 7832 cmdline: loaddll64.exe "C:\Users\user\Desktop\mdnsNSP.dll" MD5: 763455F9DCB24DFEECC2B9D9F8D46D52)

conhost.exe (PID: 7896 cmdline: C:\Windows\system32\conhost.exe 0xffffffff -ForceV1 MD5: 0D698AF330FD17BEE3BF90011D49251D)

cmd.exe (PID: 7952 cmdline: cmd.exe /C rundll32.exe "C:\Users\user\Desktop\mdnsNSP.dll",#1 MD5: 8A2122E8162DBEF04694B9C3E0B6CDEE)

rundll32.exe (PID: 7980 cmdline: rundll32.exe "C:\Users\user\Desktop\mdnsNSP.dll",#1 MD5: EF3179D498793BF4234F708D3BE28633)

regsvr32.exe (PID: 7964 cmdline: regsvr32.exe /s C:\Users\user\Desktop\mdnsNSP.dll MD5: B0C2FA35D14A9FAD919E99D9D75E1B9E)

rundll32.exe (PID: 7988 cmdline: rundll32.exe C:\Users\user\Desktop\mdnsNSP.dll,DllRegisterServer MD5: EF3179D498793BF4234F708D3BE28633)

rundll32.exe (PID: 7372 cmdline: rundll32.exe C:\Users\user\Desktop\mdnsNSP.dll,DllUnregisterServer MD5: EF3179D498793BF4234F708D3BE28633)

rundll32.exe (PID: 7444 cmdline: rundll32.exe C:\Users\user\Desktop\mdnsNSP.dll,NSPCleanup MD5: EF3179D498793BF4234F708D3BE28633)

cleanup

Joe Sandbox Signatures

• Compliance
• Networking
• System Summary
• Data Obfuscation
• Boot Survival
• Hooking and other Techniques for Hiding and Protection
• Malware Analysis System Evasion
• Anti Debugging
• HIPS / PFW / Operating System Protection Evasion

Click to jump to signature section

Show All Signature Results

There are no malicious signatures, click here to show all signatures.

Source: mdnsNSP.dll

Static PE information: certificate valid

Source: mdnsNSP.dll

Static PE information: DYNAMIC_BASE, NX_COMPAT

Source:

Binary string: C:\BWA\BonjourWin_x64-94\srcroot\mDNSWindows\mdnsNSP\x64\Release\mdnsNSP.pdb source: mdnsNSP.dll

Source: mdnsNSP.dll	String found in binary or memory: http://crl.thawte.com/ThawteTimestampingCA.crl0
Source: mdnsNSP.dll	String found in binary or memory: http://ocsp.thawte.com0
Source: mdnsNSP.dll	String found in binary or memory: http://sf.symcb.com/sf.crl0f
Source: mdnsNSP.dll	String found in binary or memory: http://sf.symcb.com/sf.crt0
Source: mdnsNSP.dll	String found in binary or memory: http://sf.symcd.com0&
Source: mdnsNSP.dll	String found in binary or memory: http://ts-aia.ws.symantec.com/tss-ca-g2.cer0
Source: mdnsNSP.dll	String found in binary or memory: http://ts-crl.ws.symantec.com/tss-ca-g2.crl0(
Source: mdnsNSP.dll	String found in binary or memory: http://ts-ocsp.ws.symantec.com07
Source: mdnsNSP.dll	String found in binary or memory: http://www.apple.com/
Source: mdnsNSP.dll	String found in binary or memory: https://d.symcb.com/cps0%
Source: mdnsNSP.dll	String found in binary or memory: https://d.symcb.com/rpa0

Source: classification engine

Classification label: clean3.winDLL@14/0@0/0

Source: C:\Windows\System32\conhost.exe

Mutant created: \Sessions\1\BaseNamedObjects\Local\SM0:7896:120:WilError_03

Source: mdnsNSP.dll

Static PE information: Section: .text IMAGE_SCN_CNT_CODE, IMAGE_SCN_MEM_EXECUTE, IMAGE_SCN_MEM_READ

Source: C:\Windows\System32\loaddll64.exe

Key opened: HKEY_LOCAL_MACHINE\Software\Policies\Microsoft\Windows\Safer\CodeIdentifiers

Jump to behavior

Source: C:\Windows\System32\cmd.exe

Process created: C:\Windows\System32\rundll32.exe rundll32.exe "C:\Users\user\Desktop\mdnsNSP.dll",#1

Source: unknown	Process created: C:\Windows\System32\loaddll64.exe loaddll64.exe "C:\Users\user\Desktop\mdnsNSP.dll"
Source: C:\Windows\System32\loaddll64.exe	Process created: C:\Windows\System32\conhost.exe C:\Windows\system32\conhost.exe 0xffffffff -ForceV1
Source: C:\Windows\System32\loaddll64.exe	Process created: C:\Windows\System32\cmd.exe cmd.exe /C rundll32.exe "C:\Users\user\Desktop\mdnsNSP.dll",#1
Source: C:\Windows\System32\loaddll64.exe	Process created: C:\Windows\System32\regsvr32.exe regsvr32.exe /s C:\Users\user\Desktop\mdnsNSP.dll
Source: C:\Windows\System32\cmd.exe	Process created: C:\Windows\System32\rundll32.exe rundll32.exe "C:\Users\user\Desktop\mdnsNSP.dll",#1
Source: C:\Windows\System32\loaddll64.exe	Process created: C:\Windows\System32\rundll32.exe rundll32.exe C:\Users\user\Desktop\mdnsNSP.dll,DllRegisterServer
Source: C:\Windows\System32\loaddll64.exe	Process created: C:\Windows\System32\rundll32.exe rundll32.exe C:\Users\user\Desktop\mdnsNSP.dll,DllUnregisterServer
Source: C:\Windows\System32\loaddll64.exe	Process created: C:\Windows\System32\rundll32.exe rundll32.exe C:\Users\user\Desktop\mdnsNSP.dll,NSPCleanup
Source: C:\Windows\System32\loaddll64.exe	Process created: C:\Windows\System32\cmd.exe cmd.exe /C rundll32.exe "C:\Users\user\Desktop\mdnsNSP.dll",#1	Jump to behavior
Source: C:\Windows\System32\loaddll64.exe	Process created: C:\Windows\System32\regsvr32.exe regsvr32.exe /s C:\Users\user\Desktop\mdnsNSP.dll	Jump to behavior
Source: C:\Windows\System32\loaddll64.exe	Process created: C:\Windows\System32\rundll32.exe rundll32.exe C:\Users\user\Desktop\mdnsNSP.dll,DllRegisterServer	Jump to behavior
Source: C:\Windows\System32\loaddll64.exe	Process created: C:\Windows\System32\rundll32.exe rundll32.exe C:\Users\user\Desktop\mdnsNSP.dll,DllUnregisterServer	Jump to behavior
Source: C:\Windows\System32\loaddll64.exe	Process created: C:\Windows\System32\rundll32.exe rundll32.exe C:\Users\user\Desktop\mdnsNSP.dll,NSPCleanup	Jump to behavior
Source: C:\Windows\System32\cmd.exe	Process created: C:\Windows\System32\rundll32.exe rundll32.exe "C:\Users\user\Desktop\mdnsNSP.dll",#1	Jump to behavior

Source: C:\Windows\System32\loaddll64.exe	Section loaded: apphelp.dll	Jump to behavior
Source: C:\Windows\System32\loaddll64.exe	Section loaded: kernel.appcore.dll	Jump to behavior
Source: C:\Windows\System32\regsvr32.exe	Section loaded: apphelp.dll	Jump to behavior
Source: C:\Windows\System32\regsvr32.exe	Section loaded: aclayers.dll	Jump to behavior
Source: C:\Windows\System32\regsvr32.exe	Section loaded: sfc.dll	Jump to behavior
Source: C:\Windows\System32\regsvr32.exe	Section loaded: sfc_os.dll	Jump to behavior
Source: C:\Windows\System32\regsvr32.exe	Section loaded: kernel.appcore.dll	Jump to behavior
Source: C:\Windows\System32\regsvr32.exe	Section loaded: uxtheme.dll	Jump to behavior

Source: mdnsNSP.dll

Static PE information: certificate valid

Source: mdnsNSP.dll

Static PE information: Image base 0x64000000 > 0x60000000

Source: mdnsNSP.dll

Static PE information: DYNAMIC_BASE, NX_COMPAT

Source: mdnsNSP.dll

Static PE information: data directory type: IMAGE_DIRECTORY_ENTRY_DEBUG

Source:

Binary string: C:\BWA\BonjourWin_x64-94\srcroot\mDNSWindows\mdnsNSP\x64\Release\mdnsNSP.pdb source: mdnsNSP.dll

Source: C:\Windows\System32\loaddll64.exe

Process created: C:\Windows\System32\regsvr32.exe regsvr32.exe /s C:\Users\user\Desktop\mdnsNSP.dll

Source: C:\Windows\System32\loaddll64.exe

Registry key created: HKEY_LOCAL_MACHINE\SYSTEM\ControlSet001\Services\WinSock2\Parameters\NameSpace_Catalog5\Catalog_Entries64\000000000001

Jump to behavior

Source: C:\Windows\System32\loaddll64.exe

Registry key value modified: HKEY_LOCAL_MACHINE\SYSTEM\ControlSet001\Services\WinSock2\Parameters\NameSpace_Catalog5

Jump to behavior

Source: C:\Windows\System32\rundll32.exe	Process information set: NOOPENFILEERRORBOX	Jump to behavior
Source: C:\Windows\System32\rundll32.exe	Process information set: NOOPENFILEERRORBOX	Jump to behavior
Source: C:\Windows\System32\rundll32.exe	Process information set: NOOPENFILEERRORBOX	Jump to behavior
Source: C:\Windows\System32\rundll32.exe	Process information set: NOOPENFILEERRORBOX	Jump to behavior

Source: C:\Windows\System32\loaddll64.exe TID: 7836

Thread sleep time: -120000s >= -30000s

Jump to behavior

Source: all processes

Thread injection, dropped files, key value created, disk infection and DNS query: no activity detected

Source: C:\Windows\System32\conhost.exe

Last function: Thread delayed

Source: C:\Windows\System32\loaddll64.exe

Thread delayed: delay time: 120000

Jump to behavior

Source: regsvr32.exe, 00000005.00000002.1352977046.0000000000DB7000.00000004.00000020.00020000.00000000.sdmp	Binary or memory string: Hyper-V RAW%SystemRoot%\system32\mswsock.dll4
Source: loaddll64.exe, 00000001.00000002.1443958421.0000018670DC9000.00000004.00000020.00020000.00000000.sdmp, rundll32.exe, 00000006.00000002.1352860654.0000015209868000.00000004.00000020.00020000.00000000.sdmp, rundll32.exe, 00000007.00000002.1352859740.000001B66B8E8000.00000004.00000020.00020000.00000000.sdmp, rundll32.exe, 00000009.00000002.1382137700.0000014A8D208000.00000004.00000020.00020000.00000000.sdmp	Binary or memory string: Hyper-V RAW%SystemRoot%\system32\mswsock.dll

Source: all processes

Thread injection, dropped files, key value created, disk infection and DNS query: no activity detected

Source: C:\Windows\System32\cmd.exe

Process created: C:\Windows\System32\rundll32.exe rundll32.exe "C:\Users\user\Desktop\mdnsNSP.dll",#1

Jump to behavior

Mitre Att&ck Matrix

Reconnaissance	Resource Development	Initial Access	Execution	Persistence	Privilege Escalation	Defense Evasion	Credential Access	Discovery	Lateral Movement	Collection	Command and Control	Exfiltration	Impact
Gather Victim Identity Information	Acquire Infrastructure	Valid Accounts	Windows Management Instrumentation	2 Windows Service	2 Windows Service	1 Regsvr32	OS Credential Dumping	1 Security Software Discovery	Remote Services	Data from Local System	Data Obfuscation	Exfiltration Over Other Network Medium	Abuse Accessibility Features
Credentials	Domains	Default Accounts	Scheduled Task/Job	1 DLL Side-Loading	11 Process Injection	1 Rundll32	LSASS Memory	11 Virtualization/Sandbox Evasion	Remote Desktop Protocol	Data from Removable Media	Junk Data	Exfiltration Over Bluetooth	Network Denial of Service
Email Addresses	DNS Server	Domain Accounts	At	Logon Script (Windows)	1 DLL Side-Loading	11 Virtualization/Sandbox Evasion	Security Account Manager	1 System Information Discovery	SMB/Windows Admin Shares	Data from Network Shared Drive	Steganography	Automated Exfiltration	Data Encrypted for Impact
Employee Names	Virtual Private Server	Local Accounts	Cron	Login Hook	Login Hook	11 Process Injection	NTDS	System Network Configuration Discovery	Distributed Component Object Model	Input Capture	Protocol Impersonation	Traffic Duplication	Data Destruction
Gather Victim Network Information	Server	Cloud Accounts	Launchd	Network Logon Script	Network Logon Script	1 DLL Side-Loading	LSA Secrets	Internet Connection Discovery	SSH	Keylogging	Fallback Channels	Scheduled Transfer	Data Encrypted for Impact

Behavior Graph

Hide Legend

Legend:

Process
Signature
Created File
DNS/IP Info
Is Dropped
Is Windows Process
Number of created Registry Values
Number of created Files
Visual Basic
Delphi
Java
.Net C# or VB.NET
C, C++ or other language
Is malicious
Internet

Screenshots

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Thumbnails

This section contains all screenshots as thumbnails, including those not shown in the slideshow.

Antivirus, Machine Learning and Genetic Malware Detection

Initial Sample

Source	Detection	Scanner	Label	Link
mdnsNSP.dll	0%	Virustotal		Browse
mdnsNSP.dll	0%	ReversingLabs

Name	Source	Malicious	Antivirus Detection	Reputation
http://crl.thawte.com/ThawteTimestampingCA.crl0	mdnsNSP.dll	false		high
http://ocsp.thawte.com0	mdnsNSP.dll	false		high

General Information

Joe Sandbox version:	42.0.0 Malachite
Analysis ID:	1667900
Start date and time:	2025-04-17 21:52:50 +02:00
Joe Sandbox product:	CloudBasic
Overall analysis duration:	0h 4m 29s
Hypervisor based Inspection enabled:	false
Report type:	full
Cookbook file name:	default.jbs
Analysis system description:	Windows 10 x64 22H2 with Office Professional Plus 2019, Chrome 134, Firefox 118, Adobe Reader DC 23, Java 8 Update 381, 7zip 23.01
Number of analysed new started processes analysed:	15
Number of new started drivers analysed:	0
Number of existing processes analysed:	0
Number of existing drivers analysed:	0
Number of injected processes analysed:	0
Technologies:	HCA enabled EGA enabled AMSI enabled
Analysis Mode:	default
Analysis stop reason:	Timeout
Sample name:	mdnsNSP.dll
Detection:	CLEAN
Classification:	clean3.winDLL@14/0@0/0
EGA Information:	Failed
HCA Information:	Successful, ratio: 100% Number of executed functions: 0 Number of non-executed functions: 0
Cookbook Comments:	Found application associated with file extension: .dll

Warnings

Exclude process from analysis (whitelisted): MpCmdRun.exe, dllhost.exe, WMIADAP.exe, SIHClient.exe, conhost.exe, svchost.exe
Excluded IPs from analysis (whitelisted): 23.76.34.6, 4.245.163.56, 4.175.87.197
Excluded domains from analysis (whitelisted): fs.microsoft.com, slscr.update.microsoft.com, ctldl.windowsupdate.com, prod.fs.microsoft.com.akadns.net, fs-wildcard.microsoft.com.edgekey.net, fs-wildcard.microsoft.com.edgekey.net.globalredir.akadns.net, e16604.dscf.akamaiedge.net, c.pki.goog, fe3cr.delivery.mp.microsoft.com
Not all processes where analyzed, report is missing behavior information

Simulations

Behavior and APIs

Time	Type	Description
15:54:13	API Interceptor	1x Sleep call for process: loaddll64.exe modified
20:53:48	Task Scheduler	Run new task: {3CA15E56-0D01-4B80-AA37-7B3D7E189390} path: .

Joe Sandbox View / Context

Static File Info

General

File type:	PE32+ executable (DLL) (GUI) x86-64, for MS Windows
Entropy (8bit):	6.291178614294413
TrID:	Win64 Dynamic Link Library (generic) (102004/3) 86.43% Win64 Executable (generic) (12005/4) 10.17% Generic Win/DOS Executable (2004/3) 1.70% DOS Executable Generic (2002/1) 1.70% Autodesk FLIC Image File (extensions: flc, fli, cel) (7/3) 0.01%
File name:	mdnsNSP.dll
File size:	133'392 bytes
MD5:	eaaa2b83c4764fdcfbee4a4d6546de92
SHA1:	961a7e7735ee8f07ca54fa7cbfb23399748f8174
SHA256:	043779b2c684699c89d6e8363d65baa9f31dff17d250059b56a8e3ae48c89b5b
SHA512:	bc569de847db42bc2b1bc0a6ee0a792269b1d7dccffc8a5f0f6130495cabb8accb5ee312a0c749ccc13c395e4969a1a5738132ebb41cfebfaaf41126ac9737d3
SSDEEP:	1536:AhzVOMLpjuZI06DWP6cLcglQ4kyskeRh8epXZlAjd+Yg6T4+XQe+5XvTjWLvq7Ps:0Vdh8oXDAE6TNXQtWlY7xEpzZoJsDk+
TLSH:	94D37C5633A401F5E4639634C9E35F01D7B2B8270771A38F036886662F63BA56E3E376
File Content Preview:	MZ......................@...............................................!..L.!This program cannot be run in DOS mode....$.......R.!?..Ol..Ol..Ol./.l..Ol./.l..Oly..l..Ol...l..Ol..Nlt.Ol./.lq.Ol./.l..Ol./.l..Ol./.l..OlRich..Ol................PE..d......U...

File Icon


Icon Hash:	7ae282899bbab082

Static PE Info

General

Entrypoint:	0x64005844
Entrypoint Section:	.text
Digitally signed:	true
Imagebase:	0x64000000
Subsystem:	windows gui
Image File Characteristics:	EXECUTABLE_IMAGE, LARGE_ADDRESS_AWARE, DLL
DLL Characteristics:	DYNAMIC_BASE, NX_COMPAT
Time Stamp:	0x55CBCCE5 [Wed Aug 12 22:47:01 2015 UTC]
TLS Callbacks:
CLR (.Net) Version:
OS Version Major:	5
OS Version Minor:	2
File Version Major:	5
File Version Minor:	2
Subsystem Version Major:	5
Subsystem Version Minor:	2
Import Hash:	d4cc4b9c9c03b1d4843feaa53dccaabe

Authenticode Signature

Signature Valid:	true
Signature Issuer:	CN=VeriSign Class 3 Code Signing 2010 CA, OU=Terms of use at https://www.verisign.com/rpa (c)10, OU=VeriSign Trust Network, O="VeriSign, Inc.", C=US
Signature Validation Error:	The operation completed successfully
Error Number:	0
Not Before, Not After	29/07/2015 01:00:00 28/08/2017 00:59:59
Subject Chain	CN=Apple Inc., OU=Digital ID Class 3 - Microsoft Software Validation v2, O=Apple Inc., L=Cupertino, S=California, C=US
Version:	3
Thumbprint MD5:	A5703716C23A6D3C99330D199928D836
Thumbprint SHA-1:	173A28539CA6DAB5AC8C3B995ABAA692F95C5FC4
Thumbprint SHA-256:	16041974BD96FB9A226AD5AF165BF167CA8A30D4200ECA35B9FA0D45EDB25544
Serial:	2B20EB3380792AB011F662C064FDB473

Entrypoint Preview

Instruction
dec eax
mov dword ptr [esp+08h], ebx
dec eax
mov dword ptr [esp+10h], esi
push edi
dec eax
sub esp, 20h
dec ecx
mov edi, eax
mov ebx, edx
dec eax
mov esi, ecx
cmp edx, 01h
jne 00007F1E11025C27h
call 00007F1E1102BAE4h
dec esp
mov eax, edi
mov edx, ebx
dec eax
mov ecx, esi
dec eax
mov ebx, dword ptr [esp+30h]
dec eax
mov esi, dword ptr [esp+38h]
dec eax
add esp, 20h
pop edi
jmp 00007F1E11025ACCh
int3
int3
int3
sub ecx, 000003A4h
je 00007F1E11025C45h
sub ecx, 04h
je 00007F1E11025C3Ah
sub ecx, 0Dh
je 00007F1E11025C2Fh
dec ecx
je 00007F1E11025C25h
xor eax, eax
ret
mov eax, 00000404h
ret
mov eax, 00000412h
ret
mov eax, 00000804h
ret
mov eax, 00000411h
ret
int3
int3
int3
dec eax
mov dword ptr [esp+08h], ebx
dec eax
mov dword ptr [esp+10h], ebp
dec eax
mov dword ptr [esp+18h], esi
push edi
dec eax
sub esp, 20h
dec eax
lea ebx, dword ptr [ecx+1Ch]
dec eax
mov ebp, ecx
mov esi, 00000101h
dec eax
mov ecx, ebx
inc esp
mov eax, esi
xor edx, edx
call 00007F1E1102AA50h
inc ebp
xor ebx, ebx
dec eax
lea edi, dword ptr [ebp+10h]
inc ecx
lea ecx, dword ptr [ebx+06h]
inc ecx
movzx eax, bx
inc esp
mov dword ptr [ebp+0Ch], ebx
dec esp
mov dword ptr [ebp+04h], ebx
rep stosw
dec eax
lea edi, dword ptr [0001872Ah]
dec eax
sub edi, ebp
mov al, byte ptr [edi+ebx]

Rich Headers

Programming Language:

[C++] VS2010 SP1 build 40219
[ASM] VS2010 SP1 build 40219
[C++] VS2010 build 30319
[IMP] VS2008 SP1 build 30729
[ C ] VS2010 SP1 build 40219
[EXP] VS2010 SP1 build 40219
[RES] VS2010 SP1 build 40219
[LNK] VS2010 SP1 build 40219

Data Directories

Name	Virtual Address	Virtual Size	Is in Section
IMAGE_DIRECTORY_ENTRY_EXPORT	0x1d1f0	0x98	.rdata
IMAGE_DIRECTORY_ENTRY_IMPORT	0x1c7f8	0x3c	.rdata
IMAGE_DIRECTORY_ENTRY_RESOURCE	0x24000	0x4e8	.rsrc
IMAGE_DIRECTORY_ENTRY_EXCEPTION	0x22000	0x141c	.pdata
IMAGE_DIRECTORY_ENTRY_SECURITY	0x1f000	0x1910	.data
IMAGE_DIRECTORY_ENTRY_BASERELOC	0x25000	0x250	.reloc
IMAGE_DIRECTORY_ENTRY_DEBUG	0x18370	0x1c	.rdata
IMAGE_DIRECTORY_ENTRY_COPYRIGHT	0x0	0x0
IMAGE_DIRECTORY_ENTRY_GLOBALPTR	0x0	0x0
IMAGE_DIRECTORY_ENTRY_TLS	0x0	0x0
IMAGE_DIRECTORY_ENTRY_LOAD_CONFIG	0x0	0x0
IMAGE_DIRECTORY_ENTRY_BOUND_IMPORT	0x0	0x0
IMAGE_DIRECTORY_ENTRY_IAT	0x18000	0x300	.rdata
IMAGE_DIRECTORY_ENTRY_DELAY_IMPORT	0x1c6fc	0x40	.rdata
IMAGE_DIRECTORY_ENTRY_COM_DESCRIPTOR	0x0	0x0
IMAGE_DIRECTORY_ENTRY_RESERVED	0x0	0x0

Sections

Name	Virtual Address	Virtual Size	Raw Size	MD5	Xored PE	ZLIB Complexity	File Type	Entropy	Characteristics
.text	0x1000	0x163fc	0x16400	5e4be7a0d4511688fa10348b5ab8bbc9	False	0.5536451018258427	zlib compressed data	6.393577359010625	IMAGE_SCN_CNT_CODE, IMAGE_SCN_MEM_EXECUTE, IMAGE_SCN_MEM_READ
.rdata	0x18000	0x5288	0x5400	dd07a4f145c9331c40f49726d549069c	False	0.34226190476190477	data	4.918916633562552	IMAGE_SCN_CNT_INITIALIZED_DATA, IMAGE_SCN_MEM_READ
.data	0x1e000	0x3740	0x1400	422ddd51e8000b586993b40cfa58d56e	False	0.1494140625	data	1.9506335902091196	IMAGE_SCN_CNT_INITIALIZED_DATA, IMAGE_SCN_MEM_READ, IMAGE_SCN_MEM_WRITE
.pdata	0x22000	0x141c	0x1600	8be6c8b3a3a258a5fce5bb30b231fc2f	False	0.4463778409090909	data	4.83945192551948	IMAGE_SCN_CNT_INITIALIZED_DATA, IMAGE_SCN_MEM_READ
.rsrc	0x24000	0x4e8	0x600	f6546586e5e87eb4a6bde233e78c00f9	False	0.3893229166666667	data	4.550978486423739	IMAGE_SCN_CNT_INITIALIZED_DATA, IMAGE_SCN_MEM_READ
.reloc	0x25000	0x38e	0x400	ed88993a3b356a2ed3bc52f8dd4f745c	False	0.4150390625	data	3.697895854260094	IMAGE_SCN_CNT_INITIALIZED_DATA, IMAGE_SCN_MEM_DISCARDABLE, IMAGE_SCN_MEM_READ

Resources

Name	RVA	Size	Type	Language	Country	ZLIB Complexity
RT_VERSION	0x240a0	0x2ec	data	English	United States	0.4679144385026738
RT_MANIFEST	0x2438c	0x15a	ASCII text, with CRLF line terminators	English	United States	0.5491329479768786

Imports

DLL

Import

WS2_32.dll

WSAEventSelect, WSAStringToAddressA, WSAStartup, WSCUnInstallNameSpace, WSCInstallNameSpace, WSACleanup

KERNEL32.dll

IsDebuggerPresent, GetProcessHeap, SetEndOfFile, HeapSize, WriteConsoleW, SetFilePointer, CreateFileA, GetModuleFileNameW, GetLastError, CloseHandle, SetEvent, LeaveCriticalSection, EnterCriticalSection, FreeLibrary, DeleteCriticalSection, SetLastError, WaitForSingleObject, WaitForMultipleObjects, CreateEventA, WideCharToMultiByte, GetSystemDirectoryA, GetProcAddress, LoadLibraryA, InitializeCriticalSection, LocalAlloc, LocalFree, RaiseException, RtlUnwindEx, HeapFree, HeapReAlloc, HeapAlloc, GetCurrentThreadId, FlsSetValue, GetCommandLineA, GetCPInfo, GetACP, GetOEMCP, IsValidCodePage, EncodePointer, FlsGetValue, FlsFree, GetCurrentThread, FlsAlloc, TerminateProcess, GetCurrentProcess, UnhandledExceptionFilter, SetUnhandledExceptionFilter, CreateFileW, RtlVirtualUnwind, RtlLookupFunctionEntry, RtlCaptureContext, HeapSetInformation, GetVersion, HeapCreate, HeapDestroy, DecodePointer, SetHandleCount, GetStdHandle, InitializeCriticalSectionAndSpinCount, GetFileType, GetStartupInfoW, GetModuleHandleW, ExitProcess, WriteFile, Sleep, GetModuleFileNameA, FreeEnvironmentStringsW, GetEnvironmentStringsW, QueryPerformanceCounter, GetTickCount, GetCurrentProcessId, GetSystemTimeAsFileTime, LCMapStringW, MultiByteToWideChar, GetStringTypeW, FatalAppExitA, GetUserDefaultLCID, GetLocaleInfoW, GetLocaleInfoA, EnumSystemLocalesA, IsValidLocale, SetStdHandle, GetConsoleCP, GetConsoleMode, FlushFileBuffers, ReadFile, SetConsoleCtrlHandler, LoadLibraryW

Exports

Name	Ordinal	Address
DllRegisterServer	1	0x64001100
DllUnregisterServer	2	0x64001220
NSPCleanup	3	0x64002230
NSPStartup	4	0x64003050

Version Infos

Description	Data
CompanyName	Apple Inc.
FileDescription	Bonjour Namespace Provider
FileVersion	3,1,0,1
InternalName	mdnsNSP.dll
LegalCopyright	Copyright (c) 2003-2015 Apple Inc.
OriginalFilename	mdnsNSP.dll
ProductName	Bonjour
ProductVersion	3,1,0,1
Translation	0x0409 0x04b0

Possible Origin

Language of compilation system	Country where language is spoken	Map
English	United States

• loaddll64.exe
• conhost.exe
• cmd.exe
• regsvr32.exe
• rundll32.exe
• rundll32.exe
• rundll32.exe
• rundll32.exe

Click to jump to process

Click to jump to process

High Level Behavior Distribution

• File
• Registry

Click to dive into process behavior distribution

Behavior

• loaddll64.exe
• conhost.exe
• cmd.exe
• regsvr32.exe
• rundll32.exe
• rundll32.exe
• rundll32.exe
• rundll32.exe

Click to jump to process

Target ID:	1
Start time:	15:54:03
Start date:	17/04/2025
Path:	C:\Windows\System32\loaddll64.exe
Wow64 process (32bit):	false
Commandline:	loaddll64.exe "C:\Users\user\Desktop\mdnsNSP.dll"
Imagebase:	0x7ff75acc0000
File size:	165'888 bytes
MD5 hash:	763455F9DCB24DFEECC2B9D9F8D46D52
Has elevated privileges:	true
Has administrator privileges:	true
Programmed in:	C, C++ or other language
Reputation:	high
Has exited:	true

Show Windows behavior

Target ID:	3
Start time:	15:54:03
Start date:	17/04/2025
Path:	C:\Windows\System32\conhost.exe
Wow64 process (32bit):	false
Commandline:	C:\Windows\system32\conhost.exe 0xffffffff -ForceV1
Imagebase:	0x7ff62fc20000
File size:	862'208 bytes
MD5 hash:	0D698AF330FD17BEE3BF90011D49251D
Has elevated privileges:	true
Has administrator privileges:	true
Programmed in:	C, C++ or other language
Reputation:	high
Has exited:	true

Show Windows behavior

Target ID:	4
Start time:	15:54:04
Start date:	17/04/2025
Path:	C:\Windows\System32\cmd.exe
Wow64 process (32bit):	false
Commandline:	cmd.exe /C rundll32.exe "C:\Users\user\Desktop\mdnsNSP.dll",#1
Imagebase:	0x7ff7f7500000
File size:	289'792 bytes
MD5 hash:	8A2122E8162DBEF04694B9C3E0B6CDEE
Has elevated privileges:	true
Has administrator privileges:	true
Programmed in:	C, C++ or other language
Reputation:	high
Has exited:	true

Show Windows behavior

Target ID:	5
Start time:	15:54:04
Start date:	17/04/2025
Path:	C:\Windows\System32\regsvr32.exe
Wow64 process (32bit):	false
Commandline:	regsvr32.exe /s C:\Users\user\Desktop\mdnsNSP.dll
Imagebase:	0x7ff6cbfd0000
File size:	25'088 bytes
MD5 hash:	B0C2FA35D14A9FAD919E99D9D75E1B9E
Has elevated privileges:	true
Has administrator privileges:	true
Programmed in:	C, C++ or other language
Reputation:	high
Has exited:	true

Show Windows behavior

Target ID:	6
Start time:	15:54:04
Start date:	17/04/2025
Path:	C:\Windows\System32\rundll32.exe
Wow64 process (32bit):	false
Commandline:	rundll32.exe "C:\Users\user\Desktop\mdnsNSP.dll",#1
Imagebase:	0x7ff6a0ea0000
File size:	71'680 bytes
MD5 hash:	EF3179D498793BF4234F708D3BE28633
Has elevated privileges:	true
Has administrator privileges:	true
Programmed in:	C, C++ or other language
Reputation:	high
Has exited:	true

Show Windows behavior

Target ID:	7
Start time:	15:54:04
Start date:	17/04/2025
Path:	C:\Windows\System32\rundll32.exe
Wow64 process (32bit):	false
Commandline:	rundll32.exe C:\Users\user\Desktop\mdnsNSP.dll,DllRegisterServer
Imagebase:	0x7ff6a0ea0000
File size:	71'680 bytes
MD5 hash:	EF3179D498793BF4234F708D3BE28633
Has elevated privileges:	true
Has administrator privileges:	true
Programmed in:	C, C++ or other language
Reputation:	high
Has exited:	true

Show Windows behavior

Target ID:	9
Start time:	15:54:07
Start date:	17/04/2025
Path:	C:\Windows\System32\rundll32.exe
Wow64 process (32bit):	false
Commandline:	rundll32.exe C:\Users\user\Desktop\mdnsNSP.dll,DllUnregisterServer
Imagebase:	0x7ff6a0ea0000
File size:	71'680 bytes
MD5 hash:	EF3179D498793BF4234F708D3BE28633
Has elevated privileges:	true
Has administrator privileges:	true
Programmed in:	C, C++ or other language
Reputation:	high
Has exited:	true

Show Windows behavior

Target ID:	10
Start time:	15:54:10
Start date:	17/04/2025
Path:	C:\Windows\System32\rundll32.exe
Wow64 process (32bit):	false
Commandline:	rundll32.exe C:\Users\user\Desktop\mdnsNSP.dll,NSPCleanup
Imagebase:	0x7ff6a0ea0000
File size:	71'680 bytes
MD5 hash:	EF3179D498793BF4234F708D3BE28633
Has elevated privileges:	true
Has administrator privileges:	true
Programmed in:	C, C++ or other language
Reputation:	high
Has exited:	true

Show Windows behavior

Description:	Adversaries may create or modify Windows services to repeatedly execute malicious payloads as part of persistence. When Windows boots up, it starts programs or applications called services that perform background system functions.Windows service configuration information, including the file path to the service's executable or recovery programs/commands, is stored in the Windows Registry.
Tactics:	Persistence, Privilege Escalation
Data Sources:	Command: Command Execution, Driver: Driver Load, File: File Metadata, Network Traffic: Network Traffic Flow, Process: OS API Execution, Process: Process Creation, Service: Service Creation, Service: Service Modification, Windows Registry: Windows Registry Key Creation, Windows Registry: Windows Registry Key Modification
Platforms:	Windows
Url:	Open detailed description by Mitre

Description:	Adversaries may execute their own malicious payloads by side-loading DLLs. Similar to DLL Search Order Hijacking , side-loading involves hijacking which DLL a program loads. But rather than just planting the DLL within the search order of a program then waiting for the victim application to be invoked, adversaries may directly side-load their payloads by planting then invoking a legitimate application that executes their payload(s).
Tactics:	Defense Evasion, Persistence, Privilege Escalation
Data Sources:	File: File Creation, File: File Modification, Module: Module Load, Process: Process Creation
Platforms:	Windows
Url:	Open detailed description by Mitre

Description:	Adversaries may inject code into processes in order to evade process-based defenses as well as possibly elevate privileges. Process injection is a method of executing arbitrary code in the address space of a separate live process. Running code in the context of another process may allow access to the process's memory, system/network resources, and possibly elevated privileges. Execution via process injection may also evade detection from security products since the execution is masked under a legitimate process.
Tactics:	Defense Evasion, Privilege Escalation
Data Sources:	File: File Metadata, File: File Modification, Module: Module Load, Process: OS API Execution, Process: Process Access, Process: Process Metadata, Process: Process Modification
Platforms:	Linux, macOS, Windows
Url:	Open detailed description by Mitre

Description:	Adversaries may abuse Regsvr32.exe to proxy execution of malicious code. Regsvr32.exe is a command-line program used to register and unregister object linking and embedding controls, including dynamic link libraries (DLLs), on Windows systems. The Regsvr32.exe binary may also be signed by Microsoft.
Tactics:	Defense Evasion
Data Sources:	Command: Command Execution, Module: Module Load, Network Traffic: Network Connection Creation, Process: Process Creation
Platforms:	Windows
Url:	Open detailed description by Mitre

Description:	Adversaries may abuse rundll32.exe to proxy execution of malicious code. Using rundll32.exe, vice executing directly (i.e. Shared Modules ), may avoid triggering security tools that may not monitor execution of the rundll32.exe process because of allowlists or false positives from normal operations. Rundll32.exe is commonly associated with executing DLL payloads (ex: `rundll32.exe {DLLname, DLLfunction}` ).
Tactics:	Defense Evasion
Data Sources:	Command: Command Execution, File: File Metadata, Module: Module Load, Process: Process Creation
Platforms:	Windows
Url:	Open detailed description by Mitre

Description:	Adversaries may employ various means to detect and avoid virtualization and analysis environments. This may include changing behaviors based on the results of checks for the presence of artifacts indicative of a virtual machine environment (VME) or sandbox. If the adversary detects a VME, they may alter their malware to disengage from the victim or conceal the core functions of the implant. They may also search for VME artifacts before dropping secondary or additional payloads. Adversaries may use the information learned from [Virtualization/Sandbox Evasion](https://attack.mitre.org/techniques/T1497) during automated discovery to shape follow-on behaviors.
Tactics:	Defense Evasion, Discovery
Data Sources:	Command: Command Execution, Process: OS API Execution, Process: Process Creation
Platforms:	Linux, macOS, Windows
Url:	Open detailed description by Mitre

Description:	Adversaries may attempt to get a listing of security software, configurations, defensive tools, and sensors that are installed on a system or in a cloud environment. This may include things such as firewall rules and anti-virus. Adversaries may use the information from Security Software Discovery during automated discovery to shape follow-on behaviors, including whether or not the adversary fully infects the target and/or attempts specific actions.
Tactics:	Discovery
Data Sources:	Command: Command Execution, Firewall: Firewall Enumeration, Firewall: Firewall Metadata, Process: OS API Execution, Process: Process Creation
Platforms:	Azure AD, Google Workspace, IaaS, Linux, macOS, Office 365, SaaS, Windows
Url:	Open detailed description by Mitre

Description:	An adversary may attempt to get detailed information about the operating system and hardware, including version, patches, hotfixes, service packs, and architecture. Adversaries may use the information from System Information Discovery during automated discovery to shape follow-on behaviors, including whether or not the adversary fully infects the target and/or attempts specific actions.
Tactics:	Discovery
Data Sources:	Command: Command Execution, Process: OS API Execution, Process: Process Creation
Platforms:	IaaS, Linux, macOS, Network, Windows
Url:	Open detailed description by Mitre

Behavior Section

Behavior Chronological

Disassembly

Uncategorized

Graph

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Warning!

Windows Analysis Report mdnsNSP.dll

Overview

General Information

Detection

Signatures

Classification

Process Tree

Malware Configuration

Yara Signatures

Sigma Signatures

Suricata Signatures

Joe Sandbox Signatures

Compliance

Networking

System Summary

Data Obfuscation

Boot Survival

Hooking and other Techniques for Hiding and Protection

Malware Analysis System Evasion

Anti Debugging

HIPS / PFW / Operating System Protection Evasion

Mitre Att&ck Matrix

Behavior Graph

Screenshots

Thumbnails

Antivirus, Machine Learning and Genetic Malware Detection

Initial Sample

Dropped Files

Unpacked PE Files

Domains

URLs

Domains and IPs

Contacted Domains

URLs from Memory and Binaries

World Map of Contacted IPs

General Information

Warnings

Simulations

Behavior and APIs

Joe Sandbox View / Context

IPs

Domains

ASNs

JA3 Fingerprints

Dropped Files

Created / dropped Files

Static File Info

General

File Icon

Static PE Info

General

Authenticode Signature

Entrypoint Preview

Rich Headers

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Resources

Imports

Exports

Version Infos

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Network Behavior

Statistics

CPU Usage

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High Level Behavior Distribution

back

Behavior

System Behavior

Analysis Process: loaddll64.exePID: 7832, Parent PID: 3964

General

File Activities

File Opened

Windows Analysis Report
mdnsNSP.dll