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Windows Analysis Report
Unconfirmed 739754.dll

Overview

General Information

Sample name:	Unconfirmed 739754.dll (renamed file extension from crdownload to dll)
Original sample name:	Unconfirmed 739754.crdownload
Analysis ID:	1671111
MD5:	f62de98ee452ed4ea0543ee5129fd21d
SHA1:	61578f17f4150998911457befb59aed431e393e3
SHA256:	5bd74c996047c87917e5cea60eb924e8a63d64271a8787eb29eaee855cdfcd13
Infos:

Detection

Score:	1
Range:	0 - 100
Confidence:	60%

Signatures

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

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

Sample file is different than original file name gathered from version info

Classification

Process Tree

System is w10x64

loaddll32.exe (PID: 2680 cmdline: loaddll32.exe "C:\Users\user\Desktop\Unconfirmed 739754.dll" MD5: 51E6071F9CBA48E79F10C84515AAE618)

conhost.exe (PID: 1888 cmdline: C:\Windows\system32\conhost.exe 0xffffffff -ForceV1 MD5: 0D698AF330FD17BEE3BF90011D49251D)

cmd.exe (PID: 2516 cmdline: cmd.exe /C rundll32.exe "C:\Users\user\Desktop\Unconfirmed 739754.dll",#1 MD5: D0FCE3AFA6AA1D58CE9FA336CC2B675B)

rundll32.exe (PID: 2728 cmdline: rundll32.exe "C:\Users\user\Desktop\Unconfirmed 739754.dll",#1 MD5: 889B99C52A60DD49227C5E485A016679)

cleanup

Malware Configuration

⊘No configs have been found

Yara Signatures

⊘No yara matches

Sigma Signatures

⊘No Sigma rule has matched

Suricata Signatures

⊘No Suricata rule has matched

Joe Sandbox Signatures

Click to jump to signature section

Show All Signature Results

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

Source: Unconfirmed 739754.dll

Static PE information: DYNAMIC_BASE, NX_COMPAT, NO_SEH, TERMINAL_SERVER_AWARE

Source:

Binary string: C:\BuildAgent\work\eb14b679815cea5b\Core\Tools\Tyler.IMS.Publishing\obj\Release\Tyler.IMS.Publishing.pdb source: Unconfirmed 739754.dll

Source: unknown

UDP traffic detected without corresponding DNS query: 1.1.1.1

Source: global traffic

DNS traffic detected: DNS query: c.pki.goog

Source: Unconfirmed 739754.dll	String found in binary or memory: http://schemas.tylertech.com/ims/packaging/2016/11/imssecure.xsd
Source: Unconfirmed 739754.dll	String found in binary or memory: http://schemas.tylertech.com/ims/packaging/2016/11/imsspec.xsd

Source: Unconfirmed 739754.dll

Binary or memory string: OriginalFilenameTyler.IMS.Publishing.dllJ vs Unconfirmed 739754.dll

Source: classification engine

Classification label: clean1.winDLL@6/0@1/0

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

Mutant created: \Sessions\1\BaseNamedObjects\Local\SM0:1888:120:WilError_03

Source: Unconfirmed 739754.dll

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

Source: Unconfirmed 739754.dll

Static file information: TRID: Win32 Dynamic Link Library (generic) Net Framework (1011504/3) 49.81%

Source: C:\Windows\System32\loaddll32.exe

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

Jump to behavior

Source: C:\Windows\SysWOW64\cmd.exe

Process created: C:\Windows\SysWOW64\rundll32.exe rundll32.exe "C:\Users\user\Desktop\Unconfirmed 739754.dll",#1

Source: unknown	Process created: C:\Windows\System32\loaddll32.exe loaddll32.exe "C:\Users\user\Desktop\Unconfirmed 739754.dll"
Source: C:\Windows\System32\loaddll32.exe	Process created: C:\Windows\System32\conhost.exe C:\Windows\system32\conhost.exe 0xffffffff -ForceV1
Source: C:\Windows\System32\loaddll32.exe	Process created: C:\Windows\SysWOW64\cmd.exe cmd.exe /C rundll32.exe "C:\Users\user\Desktop\Unconfirmed 739754.dll",#1
Source: C:\Windows\SysWOW64\cmd.exe	Process created: C:\Windows\SysWOW64\rundll32.exe rundll32.exe "C:\Users\user\Desktop\Unconfirmed 739754.dll",#1
Source: C:\Windows\System32\loaddll32.exe	Process created: C:\Windows\SysWOW64\cmd.exe cmd.exe /C rundll32.exe "C:\Users\user\Desktop\Unconfirmed 739754.dll",#1	Jump to behavior
Source: C:\Windows\SysWOW64\cmd.exe	Process created: C:\Windows\SysWOW64\rundll32.exe rundll32.exe "C:\Users\user\Desktop\Unconfirmed 739754.dll",#1	Jump to behavior

Source: C:\Windows\System32\loaddll32.exe	Section loaded: apphelp.dll	Jump to behavior
Source: C:\Windows\System32\loaddll32.exe	Section loaded: kernel.appcore.dll	Jump to behavior
Source: C:\Windows\SysWOW64\cmd.exe	Section loaded: apphelp.dll	Jump to behavior

Source: Unconfirmed 739754.dll

Static PE information: data directory type: IMAGE_DIRECTORY_ENTRY_COM_DESCRIPTOR

Source: Unconfirmed 739754.dll

Static PE information: DYNAMIC_BASE, NX_COMPAT, NO_SEH, TERMINAL_SERVER_AWARE

Source: Unconfirmed 739754.dll

Static PE information: data directory type: IMAGE_DIRECTORY_ENTRY_DEBUG

Source:

Binary string: C:\BuildAgent\work\eb14b679815cea5b\Core\Tools\Tyler.IMS.Publishing\obj\Release\Tyler.IMS.Publishing.pdb source: Unconfirmed 739754.dll

Source: C:\Windows\SysWOW64\rundll32.exe

Process information set: NOOPENFILEERRORBOX

Jump to behavior

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

Last function: Thread delayed

Source: C:\Windows\System32\loaddll32.exe

Thread delayed: delay time: 120000

Jump to behavior

Source: C:\Windows\SysWOW64\cmd.exe

Process created: C:\Windows\SysWOW64\rundll32.exe rundll32.exe "C:\Users\user\Desktop\Unconfirmed 739754.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	1 DLL Side-Loading	11 Process Injection	1 Rundll32	OS Credential Dumping	1 Virtualization/Sandbox Evasion	Remote Services	Data from Local System	1 Non-Application Layer Protocol	Exfiltration Over Other Network Medium	Abuse Accessibility Features
Credentials	Domains	Default Accounts	Scheduled Task/Job	Boot or Logon Initialization Scripts	1 DLL Side-Loading	1 Virtualization/Sandbox Evasion	LSASS Memory	1 System Information Discovery	Remote Desktop Protocol	Data from Removable Media	1 Application Layer Protocol	Exfiltration Over Bluetooth	Network Denial of Service
Email Addresses	DNS Server	Domain Accounts	At	Logon Script (Windows)	Logon Script (Windows)	11 Process Injection	Security Account Manager	Query Registry	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	1 DLL Side-Loading	NTDS	System Network Configuration Discovery	Distributed Component Object Model	Input Capture	Protocol Impersonation	Traffic Duplication	Data Destruction

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

Source	Detection	Scanner	Label	Link
http://schemas.tylertech.com/ims/packaging/2016/11/imsspec.xsd	0%	Avira URL Cloud	safe
http://schemas.tylertech.com/ims/packaging/2016/11/imssecure.xsd	0%	Avira URL Cloud	safe

Domains and IPs

Download Network PCAP: filtered – full

Contacted Domains

Name	IP	Active	Malicious	Reputation
bg.microsoft.map.fastly.net	199.232.210.172	true	false	high
pki-goog.l.google.com	142.250.68.227	true	false	high
c.pki.goog	unknown	unknown	false	high

URLs from Memory and Binaries

Name	Source	Malicious	Antivirus Detection	Reputation
http://schemas.tylertech.com/ims/packaging/2016/11/imssecure.xsd	Unconfirmed 739754.dll	false	Avira URL Cloud: safe	unknown
http://schemas.tylertech.com/ims/packaging/2016/11/imsspec.xsd	Unconfirmed 739754.dll	false	Avira URL Cloud: safe	unknown

World Map of Contacted IPs

⊘No contacted IP infos

General Information

Joe Sandbox version:	42.0.0 Malachite
Analysis ID:	1671111
Start date and time:	2025-04-22 16:46:50 +02:00
Joe Sandbox product:	CloudBasic
Overall analysis duration:	0h 1m 52s
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:	4
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:	EGA enabled AMSI enabled
Analysis Mode:	default
Analysis stop reason:	Timeout
Sample name:	Unconfirmed 739754.dll (renamed file extension from crdownload to dll)
Original Sample Name:	Unconfirmed 739754.crdownload
Detection:	CLEAN
Classification:	clean1.winDLL@6/0@1/0
Cookbook Comments:	Stop behavior analysis, all processes terminated

Warnings

Excluded IPs from analysis (whitelisted): 184.29.183.29
Excluded domains from analysis (whitelisted): fs.microsoft.com, ctldl.windowsupdate.com.delivery.microsoft.com, ctldl.windowsupdate.com, wu-b-net.trafficmanager.net
Not all processes where analyzed, report is missing behavior information

Simulations

Behavior and APIs

Time	Type	Description
10:47:46	API Interceptor	1x Sleep call for process: loaddll32.exe modified

Match	Associated Sample Name / URL	SHA 256	Detection	Threat Name	Link	Context
pki-goog.l.google.com	http://www.pdf-fast.com	Get hash	malicious	Unknown	Browse	142.250.68.227
	1tron.vbs	Get hash	malicious	Unknown	Browse	142.250.68.227
	SecuriteInfo.com.Win64.MalwareX-gen.22561.9089.exe	Get hash	malicious	LockBit ransomware	Browse	142.250.68.227
	1061__2025-04-08_21-35-16____client.exe	Get hash	malicious	Unknown	Browse	142.250.68.227
	SecuriteInfo.com.Win64.MalwareX-gen.15593.21621.exe	Get hash	malicious	LockBit ransomware	Browse	142.250.68.227
	SecuriteInfo.com.Win32.MalwareX-gen.18946.15055.exe	Get hash	malicious	Unknown	Browse	142.250.68.227
	5VPZNNjklZ.exe	Get hash	malicious	Amadey, LockBit ransomware, LummaC Stealer, Vidar	Browse	142.250.68.227
	pixel.exe	Get hash	malicious	AsyncRAT, DcRat	Browse	192.178.49.195
	USzqgDnms7.exe	Get hash	malicious	Babuk	Browse	192.178.49.195
	xYlp4jBkIE.exe	Get hash	malicious	Babuk	Browse	142.250.68.227
bg.microsoft.map.fastly.net	http://www.pdf-fast.com	Get hash	malicious	Unknown	Browse	199.232.210.172
	https://app.plangrid.com/projects/86007b55-3778-e02c-c33b-b705fc295425/staple/4c0da4e3-66c9-46a3-b563-49cff2a42beb	Get hash	malicious	HTMLPhisher	Browse	199.232.214.172
	https://free.teambeam.de/api/skp/v1/download/4svgq9jpl86letap5e63e0ijrlulmjw5hperu180/0/Driesmans%20en%20Co%20NV%20.pdf	Get hash	malicious	Unknown	Browse	199.232.210.172
	IDriveWinSetup.exe	Get hash	malicious	Phisher	Browse	199.232.214.172
	http://77.223.119.85/hglq2b/rxm.exe	Get hash	malicious	AsyncRAT, DcRat	Browse	199.232.214.172
	statement.exe	Get hash	malicious	PureCrypter	Browse	199.232.214.172
	ZXKkksctaZ.exe	Get hash	malicious	PureCrypter	Browse	199.232.210.172
	http://77.223.119.85/hglq2b/namen.ps1	Get hash	malicious	AsyncRAT, DcRat	Browse	199.232.210.172
	mYL13qkA7M.xlsx	Get hash	malicious	Unknown	Browse	199.232.214.172
	RFQ No. M109241 22.04.2025.xlsx	Get hash	malicious	Unknown	Browse	199.232.210.172

File type:	PE32 executable (DLL) (console) Intel 80386 Mono/.Net assembly, for MS Windows
Entropy (8bit):	5.680936736950834
TrID:	Win32 Dynamic Link Library (generic) Net Framework (1011504/3) 49.81% Win32 Dynamic Link Library (generic) (1002004/3) 49.34% Windows Screen Saver (13104/52) 0.65% Generic Win/DOS Executable (2004/3) 0.10% DOS Executable Generic (2002/1) 0.10%
File name:	Unconfirmed 739754.dll
File size:	55'296 bytes
MD5:	f62de98ee452ed4ea0543ee5129fd21d
SHA1:	61578f17f4150998911457befb59aed431e393e3
SHA256:	5bd74c996047c87917e5cea60eb924e8a63d64271a8787eb29eaee855cdfcd13
SHA512:	d6faa30b286f8fafec0c74f3112e7062ca2e6909fdf6db3f46fcee641948dc4d9bfdcbe2f39a89592f7e91439cc673c90b4b1f2992845b969620c7d165c31293
SSDEEP:	1536:QwbusnuDZsztM4QMrjWtz6tXyo6bCBGF0qIxjF5:Qwi3DCztzQMrjW1vDCBFqmjr
TLSH:	7043C75033FCC33AE6FF2B7D75B0405106F6F689A531DA9D6E81649E2E22B404B61B63
File Content Preview:	MZ......................@...............................................!..L.!This program cannot be run in DOS mode....$.......PE..L...e.~g.........." ..0.................. ........... .......................@............@................................

File Icon


Icon Hash:	7ae282899bbab082

Static PE Info

General

Entrypoint:	0x1000edfa
Entrypoint Section:	.text
Digitally signed:	false
Imagebase:	0x10000000
Subsystem:	windows cui
Image File Characteristics:	EXECUTABLE_IMAGE, LARGE_ADDRESS_AWARE, DLL
DLL Characteristics:	DYNAMIC_BASE, NX_COMPAT, NO_SEH, TERMINAL_SERVER_AWARE
Time Stamp:	0x677ED065 [Wed Jan 8 19:22:13 2025 UTC]
TLS Callbacks:
CLR (.Net) Version:
OS Version Major:	4
OS Version Minor:	0
File Version Major:	4
File Version Minor:	0
Subsystem Version Major:	4
Subsystem Version Minor:	0
Import Hash:	dae02f32a21e03ce65412f6e56942daa

Entrypoint Preview

Instruction
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Data Directories

Name	Virtual Address	Virtual Size	Is in Section
IMAGE_DIRECTORY_ENTRY_EXPORT	0x0	0x0
IMAGE_DIRECTORY_ENTRY_IMPORT	0xeda8	0x4f	.text
IMAGE_DIRECTORY_ENTRY_RESOURCE	0x10000	0x42c	.rsrc
IMAGE_DIRECTORY_ENTRY_EXCEPTION	0x0	0x0
IMAGE_DIRECTORY_ENTRY_SECURITY	0x0	0x0
IMAGE_DIRECTORY_ENTRY_BASERELOC	0x12000	0xc	.reloc
IMAGE_DIRECTORY_ENTRY_DEBUG	0xec70	0x1c	.text
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	0x2000	0x8	.text
IMAGE_DIRECTORY_ENTRY_DELAY_IMPORT	0x0	0x0
IMAGE_DIRECTORY_ENTRY_COM_DESCRIPTOR	0x2008	0x48	.text
IMAGE_DIRECTORY_ENTRY_RESERVED	0x0	0x0

Sections

Name	Virtual Address	Virtual Size	Raw Size	MD5	Xored PE	ZLIB Complexity	File Type	Entropy	Characteristics
.text	0x2000	0xce00	0xce00	b0ca68de35df2275b1ccdaab31fc5c3e	False	0.4386377427184466	data	5.805383443786634	IMAGE_SCN_CNT_CODE, IMAGE_SCN_MEM_EXECUTE, IMAGE_SCN_MEM_READ
.rsrc	0x10000	0x42c	0x600	ac20157ed92d53922c92594ba79a8f8d	False	0.2734375	data	2.4469577481207856	IMAGE_SCN_CNT_INITIALIZED_DATA, IMAGE_SCN_MEM_READ
.reloc	0x12000	0xc	0x200	225ee030e13978e0942d0939b4326e52	False	0.044921875	data	0.08153941234324169	IMAGE_SCN_CNT_INITIALIZED_DATA, IMAGE_SCN_MEM_DISCARDABLE, IMAGE_SCN_MEM_READ

Resources

Name	RVA	Size	Type	Language	Country	ZLIB Complexity
RT_VERSION	0x10058	0x3d0	data			0.3985655737704918

Imports

DLL	Import
mscoree.dll	_CorDllMain

Version Infos

Description	Data
Translation	0x0000 0x04b0
Comments
CompanyName	Tyler Technologies
FileDescription	Tyler.IMS.Publishing
FileVersion	1.4.5.0
InternalName	Tyler.IMS.Publishing.dll
LegalCopyright	Copyright Tyler Technologies 2009-2021
LegalTrademarks
OriginalFilename	Tyler.IMS.Publishing.dll
ProductName	Tyler.IMS.Publishing
ProductVersion	1.4.5.0
Assembly Version	1.4.5.0

Network Behavior

Download Network PCAP: filtered – full

UDP Packets

Timestamp	Source Port	Dest Port	Source IP	Dest IP
Apr 22, 2025 16:47:44.770390987 CEST	60044	53	192.168.2.5	1.1.1.1
Apr 22, 2025 16:47:44.910836935 CEST	53	60044	1.1.1.1	192.168.2.5

DNS Queries

Timestamp	Source IP	Dest IP	Trans ID	OP Code	Name	Type	Class	DNS over HTTPS
Apr 22, 2025 16:47:44.770390987 CEST	192.168.2.5	1.1.1.1	0x4bd8	Standard query (0)	c.pki.goog	A (IP address)	IN (0x0001)	false

DNS Answers

Timestamp	Source IP	Dest IP	Trans ID	Reply Code	Name	CName	Address	Type	Class	DNS over HTTPS
Apr 22, 2025 16:47:43.994223118 CEST	1.1.1.1	192.168.2.5	0xd757	No error (0)	bg.microsoft.map.fastly.net		199.232.210.172	A (IP address)	IN (0x0001)	false
Apr 22, 2025 16:47:43.994223118 CEST	1.1.1.1	192.168.2.5	0xd757	No error (0)	bg.microsoft.map.fastly.net		199.232.214.172	A (IP address)	IN (0x0001)	false
Apr 22, 2025 16:47:44.910836935 CEST	1.1.1.1	192.168.2.5	0x4bd8	No error (0)	c.pki.goog	pki-goog.l.google.com		CNAME (Canonical name)	IN (0x0001)	false
Apr 22, 2025 16:47:44.910836935 CEST	1.1.1.1	192.168.2.5	0x4bd8	No error (0)	pki-goog.l.google.com		142.250.68.227	A (IP address)	IN (0x0001)	false

Statistics

CPU Usage

• loaddll32.exe
• conhost.exe
• cmd.exe
• rundll32.exe

Click to jump to process

Memory Usage

• loaddll32.exe
• conhost.exe
• cmd.exe
• rundll32.exe

Click to jump to process

Click to jump to process

Target ID:	0
Start time:	10:47:45
Start date:	22/04/2025
Path:	C:\Windows\System32\loaddll32.exe
Wow64 process (32bit):	true
Commandline:	loaddll32.exe "C:\Users\user\Desktop\Unconfirmed 739754.dll"
Imagebase:	0x3e0000
File size:	126'464 bytes
MD5 hash:	51E6071F9CBA48E79F10C84515AAE618
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:	1
Start time:	10:47:45
Start date:	22/04/2025
Path:	C:\Windows\System32\conhost.exe
Wow64 process (32bit):	false
Commandline:	C:\Windows\system32\conhost.exe 0xffffffff -ForceV1
Imagebase:	0x7ff7e2000000
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:	2
Start time:	10:47:46
Start date:	22/04/2025
Path:	C:\Windows\SysWOW64\cmd.exe
Wow64 process (32bit):	true
Commandline:	cmd.exe /C rundll32.exe "C:\Users\user\Desktop\Unconfirmed 739754.dll",#1
Imagebase:	0x220000
File size:	236'544 bytes
MD5 hash:	D0FCE3AFA6AA1D58CE9FA336CC2B675B
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:	10:47:46
Start date:	22/04/2025
Path:	C:\Windows\SysWOW64\rundll32.exe
Wow64 process (32bit):	true
Commandline:	rundll32.exe "C:\Users\user\Desktop\Unconfirmed 739754.dll",#1
Imagebase:	0x620000
File size:	61'440 bytes
MD5 hash:	889B99C52A60DD49227C5E485A016679
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 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 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:	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

Description:	Adversaries may use an OSI non-application layer protocol for communication between host and C2 server or among infected hosts within a network. The list of possible protocols is extensive.Specific examples include use of network layer protocols, such as the Internet Control Message Protocol (ICMP), transport layer protocols, such as the User Datagram Protocol (UDP), session layer protocols, such as Socket Secure (SOCKS), as well as redirected/tunneled protocols, such as Serial over LAN (SOL).
Tactics:	Command and Control
Data Sources:	Network Traffic: Network Traffic Content, Network Traffic: Network Traffic Flow
Platforms:	Linux, macOS, Network, Windows
Url:	Open detailed description by Mitre

Description:	Adversaries may communicate using OSI application layer protocols to avoid detection/network filtering by blending in with existing traffic. Commands to the remote system, and often the results of those commands, will be embedded within the protocol traffic between the client and server.
Tactics:	Command and Control
Data Sources:	Network Traffic: Network Traffic Content, Network Traffic: Network Traffic Flow
Platforms:	Linux, macOS, Windows
Url:	Open detailed description by Mitre

Behavior Section

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Windows Analysis Report Unconfirmed 739754.dll

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Analysis Process: loaddll32.exePID: 2680, Parent PID: 3084

General

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Windows Analysis Report
Unconfirmed 739754.dll