| File name: | pdfskills.exe |
| Full analysis: | https://app.any.run/tasks/438d666b-0e93-4dc1-bc1e-9f7b85f43c89 |
| Verdict: | Malicious activity |
| Analysis date: | May 25, 2025, 17:34:52 |
| OS: | Windows 10 Professional (build: 19044, 64 bit) |
| Tags: | |
| Indicators: | |
| MIME: | application/vnd.microsoft.portable-executable |
| File info: | PE32+ executable (GUI) x86-64 Mono/.Net assembly, for MS Windows, 2 sections |
| MD5: | 6993F5E370CA16EF520108FC8E24ECF5 |
| SHA1: | 6C90CAE62C6E4B5C7FBED2AC13252410AF0132BC |
| SHA256: | 1994B6C8C30B4346F6B00DA12FC161EB73210AF08B914A1C4768B109B234F2DF |
| SSDEEP: | 98304:Rw4DuwYxT2ZyydrgUleLSzW8vdj2iXrVfY1c75uzdFhb4PyH1ZH30kMhvXHDnBXj:3KBRdnefCjO |
| .exe | | | Win64 Executable (generic) (87.3) |
|---|---|---|
| .exe | | | Generic Win/DOS Executable (6.3) |
| .exe | | | DOS Executable Generic (6.3) |
| MachineType: | AMD AMD64 |
|---|---|
| TimeStamp: | 2074:07:23 17:41:10+00:00 |
| ImageFileCharacteristics: | Executable, Large address aware |
| PEType: | PE32+ |
| LinkerVersion: | 48 |
| CodeSize: | 4860928 |
| InitializedDataSize: | 17408 |
| UninitializedDataSize: | - |
| EntryPoint: | 0x0000 |
| OSVersion: | 4 |
| ImageVersion: | - |
| SubsystemVersion: | 6 |
| Subsystem: | Windows GUI |
| FileVersionNumber: | 247.8.44.101 |
| ProductVersionNumber: | 247.8.44.101 |
| FileFlagsMask: | 0x003f |
| FileFlags: | (none) |
| FileOS: | Win32 |
| ObjectFileType: | Executable application |
| FileSubtype: | - |
| LanguageCode: | Neutral |
| CharacterSet: | Unicode |
| Comments: | - |
| CompanyName: | - |
| FileDescription: | PDFSkills |
| FileVersion: | 247.8.44.101 |
| InternalName: | PDFSkills.exe |
| LegalCopyright: | Copyright © 2015-2023 BLACK INDIGO All rights reserved |
| LegalTrademarks: | - |
| OriginalFileName: | PDFSkills.exe |
| ProductName: | PDFSkills |
| ProductVersion: | 247.8.44.101 |
| AssemblyVersion: | 247.8.44.101 |
PID | CMD | Path | Indicators | Parent process | |||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 536 | "C:\WINDOWS\System32\SLUI.exe" RuleId=3482d82e-ca2c-4e1f-8864-da0267b484b2;Action=AutoActivate;AppId=55c92734-d682-4d71-983e-d6ec3f16059f;SkuId=4de7cb65-cdf1-4de9-8ae8-e3cce27b9f2c;NotificationInterval=1440;Trigger=TimerEvent | C:\Windows\System32\slui.exe | SppExtComObj.Exe | ||||||||||||
User: NETWORK SERVICE Company: Microsoft Corporation Integrity Level: SYSTEM Description: Windows Activation Client Exit code: 1 Version: 10.0.19041.1 (WinBuild.160101.0800) Modules
| |||||||||||||||
| 872 | "C:\Users\admin\AppData\Local\PDFSkills\PDFSkillsApp.exe" | C:\Users\admin\AppData\Local\PDFSkills\PDFSkillsApp.exe | explorer.exe | ||||||||||||
User: admin Integrity Level: MEDIUM Description: NativeTemplate Exit code: 0 Version: 4.0.0.0 Modules
| |||||||||||||||
| 900 | C:\WINDOWS\system32\SppExtComObj.exe -Embedding | C:\Windows\System32\SppExtComObj.Exe | — | svchost.exe | |||||||||||
User: NETWORK SERVICE Company: Microsoft Corporation Integrity Level: SYSTEM Description: KMS Connection Broker Exit code: 0 Version: 10.0.19041.3996 (WinBuild.160101.0800) Modules
| |||||||||||||||
| 1568 | C:\WINDOWS\System32\rundll32.exe C:\WINDOWS\System32\shell32.dll,SHCreateLocalServerRunDll {9aa46009-3ce0-458a-a354-715610a075e6} -Embedding | C:\Windows\System32\rundll32.exe | — | svchost.exe | |||||||||||
User: admin Company: Microsoft Corporation Integrity Level: MEDIUM Description: Windows host process (Rundll32) Exit code: 0 Version: 10.0.19041.1 (WinBuild.160101.0800) Modules
| |||||||||||||||
| 3900 | "C:\Users\admin\AppData\Local\Temp\pdfskills.exe" | C:\Users\admin\AppData\Local\Temp\pdfskills.exe | explorer.exe | ||||||||||||
User: admin Integrity Level: MEDIUM Description: PDFSkills Exit code: 0 Version: 247.8.44.101 Modules
| |||||||||||||||
| 4268 | "C:\WINDOWS\system32\NOTEPAD.EXE" C:\Users\admin\AppData\Local\PDFSkills\skillsUserId.txt | C:\Windows\System32\notepad.exe | — | explorer.exe | |||||||||||
User: admin Company: Microsoft Corporation Integrity Level: MEDIUM Description: Notepad Exit code: 0 Version: 10.0.19041.1 (WinBuild.160101.0800) Modules
| |||||||||||||||
| 6744 | C:\WINDOWS\System32\slui.exe -Embedding | C:\Windows\System32\slui.exe | svchost.exe | ||||||||||||
User: admin Company: Microsoft Corporation Integrity Level: MEDIUM Description: Windows Activation Client Exit code: 0 Version: 10.0.19041.1 (WinBuild.160101.0800) Modules
| |||||||||||||||
| 7048 | "C:\Users\admin\AppData\Local\PDFSkills\PDFSkillsApp.exe" | C:\Users\admin\AppData\Local\PDFSkills\PDFSkillsApp.exe | — | pdfskills.exe | |||||||||||
User: admin Integrity Level: MEDIUM Description: NativeTemplate Exit code: 0 Version: 4.0.0.0 Modules
| |||||||||||||||
| (PID) Process: | (3900) pdfskills.exe | Key: | HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Tracing\pdfskills_RASAPI32 |
| Operation: | write | Name: | EnableFileTracing |
Value: 0 | |||
| (PID) Process: | (3900) pdfskills.exe | Key: | HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Tracing\pdfskills_RASAPI32 |
| Operation: | write | Name: | EnableAutoFileTracing |
Value: 0 | |||
| (PID) Process: | (3900) pdfskills.exe | Key: | HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Tracing\pdfskills_RASAPI32 |
| Operation: | write | Name: | EnableConsoleTracing |
Value: 0 | |||
| (PID) Process: | (3900) pdfskills.exe | Key: | HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Tracing\pdfskills_RASAPI32 |
| Operation: | write | Name: | FileTracingMask |
Value: | |||
| (PID) Process: | (3900) pdfskills.exe | Key: | HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Tracing\pdfskills_RASAPI32 |
| Operation: | write | Name: | ConsoleTracingMask |
Value: | |||
| (PID) Process: | (3900) pdfskills.exe | Key: | HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Tracing\pdfskills_RASAPI32 |
| Operation: | write | Name: | MaxFileSize |
Value: 1048576 | |||
| (PID) Process: | (3900) pdfskills.exe | Key: | HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Tracing\pdfskills_RASAPI32 |
| Operation: | write | Name: | FileDirectory |
Value: %windir%\tracing | |||
| (PID) Process: | (3900) pdfskills.exe | Key: | HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Tracing\pdfskills_RASMANCS |
| Operation: | write | Name: | EnableFileTracing |
Value: 0 | |||
| (PID) Process: | (3900) pdfskills.exe | Key: | HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Tracing\pdfskills_RASMANCS |
| Operation: | write | Name: | EnableAutoFileTracing |
Value: 0 | |||
| (PID) Process: | (3900) pdfskills.exe | Key: | HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Tracing\pdfskills_RASMANCS |
| Operation: | write | Name: | EnableConsoleTracing |
Value: 0 | |||
PID | Process | Filename | Type | |
|---|---|---|---|---|
| 3900 | pdfskills.exe | C:\Users\admin\AppData\Roaming\SMCR\userId.txt | text | |
MD5:175D3155A3C7D2B6A1C3A805F4C4CC64 | SHA256:D981E84D706F5F063243924F5DE83D90096C5F9B1F21EC892D8B652BA1B7EAD2 | |||
| 3900 | pdfskills.exe | C:\Users\admin\AppData\Local\PDFSkills\skillsUserId.txt | text | |
MD5:175D3155A3C7D2B6A1C3A805F4C4CC64 | SHA256:D981E84D706F5F063243924F5DE83D90096C5F9B1F21EC892D8B652BA1B7EAD2 | |||
| 3900 | pdfskills.exe | C:\Users\admin\AppData\Local\PDFSkills\PDFSkillsApp.exe | executable | |
MD5:D625749A2AC95BE10D0BBC0B80053DAE | SHA256:666D8F132048755CC2951437D6E2F66795A3345A070BE15DD67098378E919F8A | |||
| 3900 | pdfskills.exe | C:\Users\admin\AppData\Local\PDFSkills\PDFSkills.Belongings.favicon.ico | image | |
MD5:FC5F48AAF4694FABB338180E78FCFDCB | SHA256:575233647D440DF001566E8092FD408E1F3C840BC3991A1866408AFDA3DC6F99 | |||
| 3900 | pdfskills.exe | C:\Users\admin\Desktop\PDFSkillsApp.lnk | binary | |
MD5:B6013FE3CF2E29FC30939E80CA8071E6 | SHA256:7894F7C621292769A0EF674C829B290CD4B95A282A28D1E7DE32C501D3D788F3 | |||
| 3900 | pdfskills.exe | C:\Users\admin\AppData\Local\PDFSkills\Uninstall.exe | executable | |
MD5:2368A9422D855316695A77C1140AEA2C | SHA256:E6696F2BE034E1D113FABEC1C3843704EE7CC88CE0624BBA3E942E32DD7E99C5 | |||
PID | Process | Method | HTTP Code | IP | URL | CN | Type | Size | Reputation |
|---|---|---|---|---|---|---|---|---|---|
5496 | MoUsoCoreWorker.exe | GET | 200 | 23.216.77.38:80 | http://crl.microsoft.com/pki/crl/products/MicRooCerAut2011_2011_03_22.crl | unknown | — | — | whitelisted |
5496 | MoUsoCoreWorker.exe | GET | 200 | 2.23.246.101:80 | http://www.microsoft.com/pkiops/crl/MicSecSerCA2011_2011-10-18.crl | unknown | — | — | whitelisted |
6544 | svchost.exe | GET | 200 | 2.17.190.73:80 | http://ocsp.digicert.com/MFEwTzBNMEswSTAJBgUrDgMCGgUABBSAUQYBMq2awn1Rh6Doh%2FsBYgFV7gQUA95QNVbRTLtm8KPiGxvDl7I90VUCEAJ0LqoXyo4hxxe7H%2Fz9DKA%3D | unknown | — | — | whitelisted |
5968 | SIHClient.exe | GET | 200 | 2.23.246.101:80 | http://www.microsoft.com/pkiops/crl/Microsoft%20ECC%20Update%20Secure%20Server%20CA%202.1.crl | unknown | — | — | whitelisted |
5968 | SIHClient.exe | GET | 200 | 2.23.246.101:80 | http://www.microsoft.com/pkiops/crl/Microsoft%20ECC%20Product%20Root%20Certificate%20Authority%202018.crl | unknown | — | — | whitelisted |
PID | Process | IP | Domain | ASN | CN | Reputation |
|---|---|---|---|---|---|---|
4 | System | 192.168.100.255:137 | — | — | — | whitelisted |
5796 | svchost.exe | 51.104.136.2:443 | settings-win.data.microsoft.com | MICROSOFT-CORP-MSN-AS-BLOCK | IE | whitelisted |
4996 | RUXIMICS.exe | 51.104.136.2:443 | settings-win.data.microsoft.com | MICROSOFT-CORP-MSN-AS-BLOCK | IE | whitelisted |
— | — | 51.104.136.2:443 | settings-win.data.microsoft.com | MICROSOFT-CORP-MSN-AS-BLOCK | IE | whitelisted |
5496 | MoUsoCoreWorker.exe | 23.216.77.38:80 | crl.microsoft.com | Akamai International B.V. | DE | whitelisted |
5496 | MoUsoCoreWorker.exe | 2.23.246.101:80 | www.microsoft.com | Ooredoo Q.S.C. | QA | whitelisted |
3900 | pdfskills.exe | 198.71.59.132:443 | val.skillcli.com | IONOS SE | US | unknown |
4 | System | 192.168.100.255:138 | — | — | — | whitelisted |
6544 | svchost.exe | 40.126.31.2:443 | login.live.com | MICROSOFT-CORP-MSN-AS-BLOCK | IE | whitelisted |
6544 | svchost.exe | 2.17.190.73:80 | ocsp.digicert.com | AKAMAI-AS | DE | whitelisted |
Domain | IP | Reputation |
|---|---|---|
settings-win.data.microsoft.com |
| whitelisted |
crl.microsoft.com |
| whitelisted |
www.microsoft.com |
| whitelisted |
google.com |
| whitelisted |
val.skillcli.com |
| unknown |
login.live.com |
| whitelisted |
ocsp.digicert.com |
| whitelisted |
cbn.skillcli.com |
| unknown |
client.wns.windows.com |
| whitelisted |
slscr.update.microsoft.com |
| whitelisted |