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Windows Analysis Report
pdfprosuite.exe.zip

Overview

General Information

Sample name:	pdfprosuite.exe.zip
Analysis ID:	1540378
MD5:	8311446f4d49f353a699b04243a06d66
SHA1:	34d3b4930ea2b34587e9ded7057a48f5999fb7f9
SHA256:	1c6db95c0ace1d561fd0088c5f3a59846a90e711cae948c9ae57be9b0ef01f0e

Detection

Score:	0
Range:	0 - 100
Whitelisted:	false
Confidence:	80%

Signatures

Queries the volume information (name, serial number etc) of a device

Classification

Process Tree

System is w10x64_ra

rundll32.exe (PID: 5464 cmdline: C:\Windows\System32\rundll32.exe C:\Windows\System32\shell32.dll,SHCreateLocalServerRunDll {9aa46009-3ce0-458a-a354-715610a075e6} -Embedding MD5: EF3179D498793BF4234F708D3BE28633)

pdfprosuite.exe (PID: 6332 cmdline: "C:\Users\user\Desktop\pdfprosuite.exe\pdfprosuite.exe" MD5: 0C92689FC9800E1106197BD990871B7D)

conhost.exe (PID: 6400 cmdline: C:\Windows\system32\conhost.exe 0xffffffff -ForceV1 MD5: 0D698AF330FD17BEE3BF90011D49251D)

cleanup

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: classification engine

Classification label: clean0.winZIP@3/0@0/0

Source: C:\Users\user\Desktop\pdfprosuite.exe\pdfprosuite.exe

File created: C:\Users\user\.node_repl_history

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

Mutant created: \Sessions\1\BaseNamedObjects\Local\SM0:6400:120:WilError_03

Source: C:\Windows\System32\rundll32.exe

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

Source: unknown

Process created: C:\Windows\System32\rundll32.exe C:\Windows\System32\rundll32.exe C:\Windows\System32\shell32.dll,SHCreateLocalServerRunDll {9aa46009-3ce0-458a-a354-715610a075e6} -Embedding

Source: unknown	Process created: C:\Windows\System32\rundll32.exe C:\Windows\System32\rundll32.exe C:\Windows\System32\shell32.dll,SHCreateLocalServerRunDll {9aa46009-3ce0-458a-a354-715610a075e6} -Embedding
Source: unknown	Process created: C:\Users\user\Desktop\pdfprosuite.exe\pdfprosuite.exe "C:\Users\user\Desktop\pdfprosuite.exe\pdfprosuite.exe"
Source: C:\Users\user\Desktop\pdfprosuite.exe\pdfprosuite.exe	Process created: C:\Windows\System32\conhost.exe C:\Windows\system32\conhost.exe 0xffffffff -ForceV1

Source: C:\Users\user\Desktop\pdfprosuite.exe\pdfprosuite.exe	Section loaded: dbghelp.dll
Source: C:\Users\user\Desktop\pdfprosuite.exe\pdfprosuite.exe	Section loaded: iphlpapi.dll
Source: C:\Users\user\Desktop\pdfprosuite.exe\pdfprosuite.exe	Section loaded: userenv.dll
Source: C:\Users\user\Desktop\pdfprosuite.exe\pdfprosuite.exe	Section loaded: winmm.dll
Source: C:\Users\user\Desktop\pdfprosuite.exe\pdfprosuite.exe	Section loaded: cryptbase.dll
Source: C:\Users\user\Desktop\pdfprosuite.exe\pdfprosuite.exe	Section loaded: powrprof.dll
Source: C:\Users\user\Desktop\pdfprosuite.exe\pdfprosuite.exe	Section loaded: umpdc.dll
Source: C:\Users\user\Desktop\pdfprosuite.exe\pdfprosuite.exe	Section loaded: uxtheme.dll
Source: C:\Users\user\Desktop\pdfprosuite.exe\pdfprosuite.exe	Section loaded: mswsock.dll
Source: C:\Users\user\Desktop\pdfprosuite.exe\pdfprosuite.exe	Section loaded: kernel.appcore.dll

Source: pdfprosuite.exe.zip

Static file information: File size 26479845 > 1048576

Source: C:\Windows\System32\rundll32.exe	Process information set: NOOPENFILEERRORBOX
Source: C:\Users\user\Desktop\pdfprosuite.exe\pdfprosuite.exe	Process information set: NOGPFAULTERRORBOX \| NOOPENFILEERRORBOX

Source: C:\Users\user\Desktop\pdfprosuite.exe\pdfprosuite.exe

Queries volume information: C:\Users\user\.node_repl_history VolumeInformation

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	1 Process Injection	1 Masquerading	OS Credential Dumping	11 System Information Discovery	Remote Services	Data from Local System	Data Obfuscation	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 Rundll32	LSASS Memory	Application Window Discovery	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)	Logon Script (Windows)	1 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

Screenshots

Thumbnails

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

Antivirus, Machine Learning and Genetic Malware Detection

Initial Sample

⊘No Antivirus matches

Dropped Files

⊘No Antivirus matches

Unpacked PE Files

⊘No Antivirus matches

Domains

⊘No Antivirus matches

URLs

⊘No Antivirus matches

Domains and IPs

Contacted Domains

⊘No contacted domains info

World Map of Contacted IPs

⊘No contacted IP infos

General Information

Joe Sandbox version:	41.0.0 Charoite
Analysis ID:	1540378
Start date and time:	2024-10-23 17:53:03 +02:00
Joe Sandbox product:	CloudBasic
Overall analysis duration:
Hypervisor based Inspection enabled:	false
Report type:	full
Cookbook file name:	defaultwindowsinteractivecookbook.jbs
Analysis system description:	Windows 10 x64 22H2 with Office Professional Plus 2019, Chrome 117, Firefox 118, Adobe Reader DC 23, Java 8 Update 381, 7zip 23.01
Number of analysed new started processes analysed:	19
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
Analysis Mode:	stream
Analysis stop reason:	Timeout
Sample name:	pdfprosuite.exe.zip
Detection:	CLEAN
Classification:	clean0.winZIP@3/0@0/0
Cookbook Comments:	Found application associated with file extension: .zip

Warnings

Exclude process from analysis (whitelisted): dllhost.exe
Excluded domains from analysis (whitelisted): fs.microsoft.com, slscr.update.microsoft.com, ctldl.windowsupdate.com, fe3cr.delivery.mp.microsoft.com
Not all processes where analyzed, report is missing behavior information
VT rate limit hit for: pdfprosuite.exe.zip

Created / dropped Files

⊘No created / dropped files found

Static File Info

General

File type:	Zip archive data, at least v2.0 to extract, compression method=deflate
Entropy (8bit):	7.995454979383814
TrID:	ZIP compressed archive (8000/1) 100.00%
File name:	pdfprosuite.exe.zip
File size:	26'479'845 bytes
MD5:	8311446f4d49f353a699b04243a06d66
SHA1:	34d3b4930ea2b34587e9ded7057a48f5999fb7f9
SHA256:	1c6db95c0ace1d561fd0088c5f3a59846a90e711cae948c9ae57be9b0ef01f0e
SHA512:	ea31f817df4532110a25d56686e9facbe36c8cc6975831d767a73bbe7a64817c0c447d88412aea70aa78a8a5f2e8bfac8c2c742fc7d41203623403f3df3a557d
SSDEEP:	786432:H59Kp0Yug/7DG4KqEmzXtVjuypJj/x/esO+:HzKxuqXG4G6tpd/xm+
TLSH:	564733CDC92449CFA83ED439CAB4AC23E69B859746E35B3D469CA31780E7776B31850C
File Content Preview:	PK........k~WY.w`F......>.....pdfprosuite.exe.}.\S......h.b.-mC.k.jI.....&5..b.[...[......U.......=.j..n.W..g7....... .T....(j..3s.f........s..e..9g......A.....@ ....M .-..r...........W.}....BmN...e.b}\|...........%......../..+'O./.[.dx.>.$\..Gl_....2v<<z.

File Icon


Icon Hash:	1c1c1e4e4ececedc

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 attempt to manipulate features of their artifacts to make them appear legitimate or benign to users and/or security tools. Masquerading occurs when the name or location of an object, legitimate or malicious, is manipulated or abused for the sake of evading defenses and observation. This may include manipulating file metadata, tricking users into misidentifying the file type, and giving legitimate task or service names.
Tactics:	Defense Evasion
Data Sources:	Command: Command Execution, File: File Metadata, File: File Modification, Image: Image Metadata, Process: OS API Execution, Process: Process Creation, Process: Process Metadata, Scheduled Job: Scheduled Job Metadata, Scheduled Job: Scheduled Job Modification, Service: Service Creation, Service: Service Metadata
Platforms:	Containers, 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:	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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Windows Analysis Report
pdfprosuite.exe.zip

Overview

General Information

Detection

Signatures

Classification

Process Tree

Yara Signatures

Sigma Signatures

Suricata Signatures

Joe Sandbox Signatures

System Summary

Hooking and other Techniques for Hiding and Protection

Language, Device and Operating System Detection

Mitre Att&ck Matrix

Screenshots

Thumbnails

Antivirus, Machine Learning and Genetic Malware Detection

Initial Sample

Dropped Files

Unpacked PE Files

Domains

URLs

Domains and IPs

Contacted Domains

World Map of Contacted IPs

General Information

Warnings

Created / dropped Files

Static File Info

General

File Icon

Behavior Section

Behavior Chronological

Disassembly

Uncategorized

Graph

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Windows Analysis Report pdfprosuite.exe.zip

Overview

General Information

Detection

Signatures

Classification

Process Tree

Yara Signatures

Sigma Signatures

Suricata Signatures

Joe Sandbox Signatures

System Summary

Hooking and other Techniques for Hiding and Protection

Language, Device and Operating System Detection

Mitre Att&ck Matrix

Screenshots

Thumbnails

Antivirus, Machine Learning and Genetic Malware Detection

Initial Sample

Dropped Files

Unpacked PE Files

Domains

URLs

Domains and IPs

Contacted Domains

World Map of Contacted IPs

General Information

Warnings

Created / dropped Files

Static File Info

General

File Icon

Windows Analysis Report
pdfprosuite.exe.zip