PUP.WinVNC.C
Table of Contents
Analysis Report
General information
| Family Name: | PUP.WinVNC.C |
|---|---|
| Signature status: | No Signature |
Known Samples
Known Samples
This section lists other file samples believed to be associated with this family.|
MD5:
78a11ba3047e38211cd49f00127e282b
SHA1:
b478ae002704dbd6e38608aeb800508e601a1ebf
SHA256:
4A848EEF0F772B5DBA176E10DB02E685433362A5FE690E39562BF27B6B519884
File Size:
32.77 KB, 32768 bytes
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Windows Portable Executable Attributes
- File doesn't have "Rich" header
- File doesn't have debug information
- File doesn't have security information
- File has exports table
- File is 32-bit executable
- File is either console or GUI application
- File is GUI application (IMAGE_SUBSYSTEM_WINDOWS_GUI)
- File is Native application (NOT .NET application)
- File is not packed
- IMAGE_FILE_DLL is not set inside PE header (Executable)
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- IMAGE_FILE_EXECUTABLE_IMAGE is set inside PE header (Executable Image)
Windows PE Version Information
Windows PE Version Information
This section displays values and attributes that have been set in the Windows file version information data structure for samples within this family. To mislead users, malware actors often add fake version information mimicking legitimate software.| Name | Value |
|---|---|
| Comments | Based on VNC by AT&T Research Labs Cambridge, RealVNC Ltd. |
| Company Name | TightVNC Group |
| File Description | VNC hooks DLL for Win32 |
| File Version | 1, 3, 8, 0 |
| Internal Name | VNCHooks |
| Legal Copyright | Copyright (C) 2000-2006 TightVNC Group |
| Original Filename | VNCHooks.dll |
| Product Name | TightVNC - VNCHooks |
| Product Version | 1, 3, 8, 0 |
File Traits
- dll
- x86
Block Information
Block Information
During analysis, EnigmaSoft breaks file samples into logical blocks for classification and comparison with other samples. Blocks can be used to generate malware detection rules and to group file samples into families based on shared source code, functionality and other distinguishing attributes and characteristics. This section lists a summary of this block data, as well as its classification by EnigmaSoft. A visual representation of the block data is also displayed, where available.| Total Blocks: | 18 |
|---|---|
| Potentially Malicious Blocks: | 14 |
| Whitelisted Blocks: | 4 |
| Unknown Blocks: | 0 |
Visual Map
x
x
x
x
x
x
x
x
x
x
0
x
x
0
x
x
0
0
0 - Probable Safe Block
? - Unknown Block
x - Potentially Malicious Block
? - Unknown Block
x - Potentially Malicious Block
Similar Families
Similar Families
This section lists other families that share similarities with this family, based on EnigmaSoft’s analysis. Many malware families are created from the same malware toolkits and use the same packing and encryption techniques but uniquely extend functionality. Similar families may also share source code, attributes, icons, subcomponents, compromised and/or invalid digital signatures, and network characteristics. Researchers leverage these similarities to rapidly and effectively triage file samples and extend malware detection rules.- WinVNC.C
Registry Modifications
Registry Modifications
This section lists registry keys and values that were created, modified and/or deleted by samples in this family. Windows Registry activity can provide valuable insight into malware functionality. Additionally, malware often creates registry values to allow itself to automatically start and indefinitely persist after an initial infection has compromised the system.| Key::Value | Data | API Name |
|---|---|---|
| HKCU\software\orl\vnchooks\application_prefs\rundll32.exe::use_getupdaterect | RegNtPreCreateKey | |
| HKCU\software\orl\vnchooks\application_prefs\rundll32.exe::use_timer | RegNtPreCreateKey | |
| HKCU\software\orl\vnchooks\application_prefs\rundll32.exe::use_keypress | RegNtPreCreateKey | |
| HKCU\software\orl\vnchooks\application_prefs\rundll32.exe::use_lbuttonup | RegNtPreCreateKey | |
| HKCU\software\orl\vnchooks\application_prefs\rundll32.exe::use_mbuttonup | RegNtPreCreateKey | |
| HKCU\software\orl\vnchooks\application_prefs\rundll32.exe::use_rbuttonup | RegNtPreCreateKey | |
| HKCU\software\orl\vnchooks\application_prefs\rundll32.exe::use_deferral | RegNtPreCreateKey |
Windows API Usage
Windows API Usage
This section lists Windows API calls that are used by the samples in this family. Windows API usage analysis is a valuable tool that can help identify malicious activity, such as keylogging, security privilege escalation, data encryption, data exfiltration, interference with antivirus software, and network request manipulation.| Category | API |
|---|---|
| Syscall Use |
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| Process Manipulation Evasion |
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| Process Shell Execute |
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| Anti Debug |
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Shell Command Execution
Shell Command Execution
This section lists Windows shell commands that are run by the samples in this family. Windows Shell commands are often leveraged by malware for nefarious purposes and can be used to elevate security privileges, download and launch other malware, exploit vulnerabilities, collect and exfiltrate data, and hide malicious activity.
C:\WINDOWS\SysWOW64\rundll32.exe C:\WINDOWS\system32\rundll32.exe c:\users\user\downloads\b478ae002704dbd6e38608aeb800508e601a1ebf_0000032768.,LiQMAxHB
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