| File name: | CUH.EXE |
| Full analysis: | https://app.any.run/tasks/c8ab6b70-41f2-42ea-a1df-7db0d573b897 |
| Verdict: | Malicious activity |
| Threats: | A backdoor is a type of cybersecurity threat that allows attackers to secretly compromise a system and conduct malicious activities, such as stealing data and modifying files. Backdoors can be difficult to detect, as they often use legitimate system applications to evade defense mechanisms. Threat actors often utilize special malware, such as PlugX, to establish backdoors on target devices. |
| Analysis date: | July 01, 2025, 15:13:43 |
| OS: | Windows 7 Professional Service Pack 1 (build: 7601, 32 bit) |
| Tags: | |
| Indicators: | |
| MIME: | application/vnd.microsoft.portable-executable |
| File info: | PE32 executable (GUI) Intel 80386, for MS Windows, 6 sections |
| MD5: | B4F8443A1C9F56A0762C685A04FEF8FA |
| SHA1: | 2AFEE623640BDE731CB9C2C326671A45A108E521 |
| SHA256: | FC13BE5A66383BA13AB19A8A4A80269E355DD1A4508B641E75637520F17B43B9 |
| SSDEEP: | 98304:ibkPPn1kqkGBGQXKMfe6rykL2WarMCcX0x/5OwqXIL/q0V3pO9BP+XWj:X |
MALICIOUS
FLOXIF mutex has been found
- CUH.EXE.exe (PID: 3300)
SUSPICIOUS
No suspicious indicators.INFO
The sample compiled with english language support
- CUH.EXE.exe (PID: 3300)
Checks supported languages
- CUH.EXE.exe (PID: 3300)
Create files in a temporary directory
- CUH.EXE.exe (PID: 3300)
Reads the computer name
- CUH.EXE.exe (PID: 3300)
Reads the machine GUID from the registry
- CUH.EXE.exe (PID: 3300)
Find more information about signature artifacts and mapping to MITRE ATT&CK™ MATRIX at the full report
TRiD
| .exe | | | Win32 Executable (generic) (3.6) |
|---|---|---|
| .exe | | | Generic Win/DOS Executable (1.6) |
| .exe | | | DOS Executable Generic (1.5) |
EXIF
EXE
| MachineType: | Intel 386 or later, and compatibles |
|---|---|
| TimeStamp: | 2024:01:24 16:18:06+00:00 |
| ImageFileCharacteristics: | Executable, Large address aware, 32-bit |
| PEType: | PE32 |
| LinkerVersion: | 12 |
| CodeSize: | 2634752 |
| InitializedDataSize: | 1180672 |
| UninitializedDataSize: | - |
| EntryPoint: | 0x235412 |
| OSVersion: | 5.1 |
| ImageVersion: | 13 |
| SubsystemVersion: | 5.1 |
| Subsystem: | Windows GUI |
| FileVersionNumber: | 13.0.0.659 |
| ProductVersionNumber: | 13.0.0.659 |
| FileFlagsMask: | 0x003f |
| FileFlags: | (none) |
| FileOS: | Win32 |
| ObjectFileType: | Executable application |
| FileSubtype: | - |
| LanguageCode: | English (U.S.) |
| CharacterSet: | Windows, Latin1 |
| Builton: | Wed 01/24/2024 11:18:04.36 |
| Builtas: | UNICODE |
| CompanyName: | Corel Corporation |
| FileDescription: | Corel Update Helper x32 |
| FileVersion: | 13.0.0.659 |
| InternalName: | Corel Update Helper |
| LegalCopyright: | Copyright(c) 2021 Corel Corporation |
| LegalTrademarks: | Copyright(c) 2021 Corel Corporation |
| OriginalFileName: | CUH.exe |
| ProductName: | Corel Common Framework |
| ProductVersion: | 13.0.0.659 |
| LanguageBuildID: | - |
Total processes
34
Monitored processes
1
Malicious processes
1
Suspicious processes
0
Behavior graph
Click at the process to see the details
Process information
PID | CMD | Path | Indicators | Parent process | |||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 3300 | "C:\Users\admin\AppData\Local\Temp\CUH.EXE.exe" | C:\Users\admin\AppData\Local\Temp\CUH.EXE.exe | explorer.exe | ||||||||||||
User: admin Company: Corel Corporation Integrity Level: MEDIUM Description: Corel Update Helper x32 Exit code: 0 Version: 13.0.0.659 Modules
| |||||||||||||||
Total events
97
Read events
89
Write events
8
Delete events
0
Modification events
| (PID) Process: | (3300) CUH.EXE.exe | Key: | HKEY_CURRENT_USER\Software\Corel\PCU |
| Operation: | write | Name: | model |
Value: DELL|DELL | |||
| (PID) Process: | (3300) CUH.EXE.exe | Key: | HKEY_CURRENT_USER\Software\Corel\PCU |
| Operation: | write | Name: | bios |
Value: DELL | |||
| (PID) Process: | (3300) CUH.EXE.exe | Key: | HKEY_CURRENT_USER\Software\Corel\PCU |
| Operation: | write | Name: | cardnumber |
Value: 7 | |||
| (PID) Process: | (3300) CUH.EXE.exe | Key: | HKEY_CURRENT_USER\Software\Corel\PCU |
| Operation: | write | Name: | 7 |
Value: 62AEF2F5C88B | |||
| (PID) Process: | (3300) CUH.EXE.exe | Key: | HKEY_CURRENT_USER\Software\Corel\PCU |
| Operation: | write | Name: | HFNCv2 |
Value: 62AEF2F5C88B | |||
| (PID) Process: | (3300) CUH.EXE.exe | Key: | HKEY_CURRENT_USER\Software\Corel\PCU |
| Operation: | write | Name: | networkcard |
Value: 62AEF2F5C88B | |||
| (PID) Process: | (3300) CUH.EXE.exe | Key: | HKEY_CURRENT_USER\Software\Corel\PCU |
| Operation: | write | Name: | HFIv2 |
Value: V220DE17E0CBBB28915B7BC1B751BFAD55 | |||
| (PID) Process: | (3300) CUH.EXE.exe | Key: | HKEY_CURRENT_USER\Software\Corel\CUH\2.0 |
| Operation: | write | Name: | TaskId |
Value: CorelUpdateHelperTask-E78398FBFEA5DDF15050EE6D7780661C | |||
Executable files
0
Suspicious files
0
Text files
1
Unknown types
0
Dropped files
PID | Process | Filename | Type | |
|---|---|---|---|---|
| 3300 | CUH.EXE.exe | C:\Users\admin\AppData\Local\Temp\CUH.EXE_PCULog0.txt | text | |
MD5:07A113E1C2E760C8728ED17EBD99DEC5 | SHA256:D2E569E97A96045E826BF6E2EF5F6A7A293A9F6DE8D07DA55610D433374CD43B | |||
Download PCAP, analyze network streams, HTTP content and a lot more at the full report
HTTP(S) requests
0
TCP/UDP connections
6
DNS requests
1
Threats
0
HTTP requests
Download PCAP, analyze network streams, HTTP content and a lot more at the full report
Connections
PID | Process | IP | Domain | ASN | CN | Reputation |
|---|---|---|---|---|---|---|
4 | System | 192.168.100.255:137 | — | — | — | whitelisted |
— | — | 224.0.0.252:5355 | — | — | — | whitelisted |
1080 | svchost.exe | 224.0.0.252:5355 | — | — | — | whitelisted |
4 | System | 192.168.100.255:138 | — | — | — | whitelisted |
DNS requests
Domain | IP | Reputation |
|---|---|---|
google.com |
| whitelisted |