| File name: | PDFixers.exe |
| Full analysis: | https://app.any.run/tasks/e147e759-14da-4763-b031-8a877d984bec |
| Verdict: | Malicious activity |
| Threats: | Stealers are a group of malicious software that are intended for gaining unauthorized access to users’ information and transferring it to the attacker. The stealer malware category includes various types of programs that focus on their particular kind of data, including files, passwords, and cryptocurrency. Stealers are capable of spying on their targets by recording their keystrokes and taking screenshots. This type of malware is primarily distributed as part of phishing campaigns. |
| Analysis date: | September 13, 2024, 19:58:06 |
| OS: | Windows 10 Professional (build: 19045, 64 bit) |
| Tags: | |
| Indicators: | |
| MIME: | application/x-dosexec |
| File info: | PE32+ executable (GUI) x86-64 Mono/.Net assembly, for MS Windows |
| MD5: | B4440EEA7367C3FB04A89225DF4022A6 |
| SHA1: | 5A6C01F821F10F6ED1F1283ECBA36C5BACFB5838 |
| SHA256: | A024A18E27707738ADCD7B5A740C5A93534B4B8C9D3B947F6D85740AF19D17D0 |
| SSDEEP: | 98304:NKaPGf3Lx51clR43g0ZtKC5/TF4i9bYvQCPjhPXq2fZWwZmchG6QjvOr/av7Vx6U:Lm3qrzPw0jtrQp |
| .exe | | | Generic Win/DOS Executable (50) |
|---|---|---|
| .exe | | | DOS Executable Generic (49.9) |
| MachineType: | AMD AMD64 |
|---|---|
| TimeStamp: | 2054:11:16 06:26:21+00:00 |
| ImageFileCharacteristics: | Executable, Large address aware |
| PEType: | PE32+ |
| LinkerVersion: | 80 |
| CodeSize: | 8382976 |
| InitializedDataSize: | 112128 |
| UninitializedDataSize: | - |
| EntryPoint: | 0x0000 |
| OSVersion: | 4 |
| ImageVersion: | - |
| SubsystemVersion: | 6 |
| Subsystem: | Windows GUI |
| FileVersionNumber: | 1.0.0.0 |
| ProductVersionNumber: | 1.0.0.0 |
| FileFlagsMask: | 0x003f |
| FileFlags: | (none) |
| FileOS: | Win32 |
| ObjectFileType: | Executable application |
| FileSubtype: | - |
| LanguageCode: | Neutral |
| CharacterSet: | Unicode |
| Comments: | - |
| CompanyName: | - |
| FileDescription: | Pdfixers |
| FileVersion: | 1.0.0.0 |
| InternalName: | Pdfixers.exe |
| LegalCopyright: | Copyright © 2023 |
| LegalTrademarks: | - |
| OriginalFileName: | Pdfixers.exe |
| ProductName: | Pdfixers |
| ProductVersion: | 1.0.0.0 |
| AssemblyVersion: | 1.0.0.0 |
PID | CMD | Path | Indicators | Parent process | |||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 2484 | C:\WINDOWS\system32\compattelrunner.exe -m:aeinv.dll -f:UpdateSoftwareInventoryW | C:\Windows\System32\CompatTelRunner.exe | svchost.exe | ||||||||||||
User: SYSTEM Company: Microsoft Corporation Integrity Level: SYSTEM Description: Microsoft Compatibility Telemetry Exit code: 0 Version: 10.0.19645.1102 (WinBuild.160101.0800) Modules
| |||||||||||||||
| 4976 | "C:\Users\admin\AppData\Local\Temp\PDFixers.exe" | C:\Users\admin\AppData\Local\Temp\PDFixers.exe | explorer.exe | ||||||||||||
User: admin Integrity Level: MEDIUM Description: Pdfixers Version: 1.0.0.0 Modules
| |||||||||||||||
| 6532 | "C:\Users\admin\AppData\Roaming\SumatraPDF\SumatraPDF-3.5.2-64.exe" | C:\Users\admin\AppData\Roaming\SumatraPDF\SumatraPDF-3.5.2-64.exe | PDFixers.exe | ||||||||||||
User: admin Company: Krzysztof Kowalczyk Integrity Level: MEDIUM Description: SumatraPDF Version: 3.5.2 Modules
| |||||||||||||||
| (PID) Process: | (4976) PDFixers.exe | Key: | HKEY_CURRENT_USER\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\5.0\Cache\Content |
| Operation: | write | Name: | CachePrefix |
Value: | |||
| (PID) Process: | (4976) PDFixers.exe | Key: | HKEY_CURRENT_USER\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\5.0\Cache\Cookies |
| Operation: | write | Name: | CachePrefix |
Value: Cookie: | |||
| (PID) Process: | (4976) PDFixers.exe | Key: | HKEY_CURRENT_USER\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\5.0\Cache\History |
| Operation: | write | Name: | CachePrefix |
Value: Visited: | |||
| (PID) Process: | (4976) PDFixers.exe | Key: | HKEY_CURRENT_USER\SOFTWARE\Microsoft\Windows\CurrentVersion\Uninstall\SumatraPDFUninstall |
| Operation: | write | Name: | DisplayName |
Value: SumatraPDF | |||
| (PID) Process: | (4976) PDFixers.exe | Key: | HKEY_CURRENT_USER\SOFTWARE\Microsoft\Windows\CurrentVersion\Uninstall\SumatraPDFUninstall |
| Operation: | write | Name: | UninstallString |
Value: cmd /c rmdir /s /q "C:\Users\admin\AppData\Roaming\SumatraPDF" & del "C:\Users\admin\Desktop\SumatraPDF.lnk" & reg delete HKCU\Software\Microsoft\Windows\CurrentVersion\Uninstall\SumatraPDFUninstall /f | |||
| (PID) Process: | (6532) SumatraPDF-3.5.2-64.exe | Key: | HKEY_CLASSES_ROOT\Local Settings\Software\Microsoft\Windows\Shell\BagMRU |
| Operation: | write | Name: | NodeSlots |
Value: 020202020202020202020202020202020202020202020202020202020202020202020202020202020202020202020202020202020202020202020202020202020202020202020202020202020202020202020202020202020202020202020202020202020202020202020202020202020202020202020202020202020202020202020202020202020202020202020202020202020202020202020202020202020202020202020202020202020202020202020202020202020202020202020202020202020202020202020202020202020202020202020202020202020202020202020202020202020202020202020202020202020202020202 | |||
| (PID) Process: | (6532) SumatraPDF-3.5.2-64.exe | Key: | HKEY_CLASSES_ROOT\Local Settings\Software\Microsoft\Windows\Shell\BagMRU |
| Operation: | write | Name: | MRUListEx |
Value: 0400000000000000030000000E0000000F0000000C0000000D0000000B000000050000000A000000090000000800000001000000070000000600000002000000FFFFFFFF | |||
| (PID) Process: | (6532) SumatraPDF-3.5.2-64.exe | Key: | HKEY_CLASSES_ROOT\Local Settings\Software\Microsoft\Windows\Shell\BagMRU\4 |
| Operation: | write | Name: | MRUListEx |
Value: 040000000000000005000000020000000100000003000000FFFFFFFF | |||
| (PID) Process: | (6532) SumatraPDF-3.5.2-64.exe | Key: | HKEY_CLASSES_ROOT\Local Settings\Software\Microsoft\Windows\Shell\Bags\119\Shell |
| Operation: | write | Name: | SniffedFolderType |
Value: Documents | |||
| (PID) Process: | (6532) SumatraPDF-3.5.2-64.exe | Key: | HKEY_CURRENT_USER\SOFTWARE\Microsoft\Windows\CurrentVersion\Explorer |
| Operation: | write | Name: | GlobalAssocChangedCounter |
Value: 93 | |||
PID | Process | Filename | Type | |
|---|---|---|---|---|
| 4976 | PDFixers.exe | C:\Users\admin\AppData\LocalLow\Microsoft\CryptnetUrlCache\Content\8B2B9A00839EED1DFDCCC3BFC2F5DF12 | der | |
MD5:7FB5FA1534DCF77F2125B2403B30A0EE | SHA256:33A39E9EC2133230533A686EC43760026E014A3828C703707ACBC150FE40FD6F | |||
| 4976 | PDFixers.exe | C:\Users\admin\AppData\LocalLow\Microsoft\CryptnetUrlCache\Content\05DDC6AA91765AACACDB0A5F96DF8199 | der | |
MD5:E935BC5762068CAF3E24A2683B1B8A88 | SHA256:A8ACCFCFEB51BD73DF23B91F4D89FF1A9EB7438EF5B12E8AFDA1A6FF1769E89D | |||
| 4976 | PDFixers.exe | C:\Users\admin\AppData\LocalLow\Microsoft\CryptnetUrlCache\Content\B46811C17859FFB409CF0E904A4AA8F8 | der | |
MD5:971C514F84BBA0785F80AA1C23EDFD79 | SHA256:F157ED17FCAF8837FA82F8B69973848C9B10A02636848F995698212A08F31895 | |||
| 4976 | PDFixers.exe | C:\Users\admin\AppData\Local\Microsoft\Windows\INetCache\IE\RR3E01RZ\HCLLEZY8.htm | html | |
MD5:C1249C46247479B3D8412512BD99BCCA | SHA256:10965DEC5DB2FCD38FB8430429162D6532D33462486D68B1130E0F2816A4F2B7 | |||
| 4976 | PDFixers.exe | C:\Users\admin\AppData\Local\Microsoft\Windows\INetCache\IE\KCV3KQBA\font[1].eot | eot | |
MD5:C6B85601ADBF8C674B4B444DAD696A5D | SHA256:EC8671B432FF49E1E77F48692397E57ECFA584555AC664C932DCCEA0C9A16044 | |||
| 4976 | PDFixers.exe | C:\Users\admin\AppData\Local\Microsoft\Windows\INetCache\IE\KCV3KQBA\email-decode.min[1].js | binary | |
MD5:9E8F56E8E1806253BA01A95CFC3D392C | SHA256:2595496FE48DF6FCF9B1BC57C29A744C121EB4DD11566466BC13D2E52E6BBCC8 | |||
| 6532 | SumatraPDF-3.5.2-64.exe | C:\Users\admin\AppData\Roaming\SumatraPDF\SumatraPDF-settings.txt | text | |
MD5:21F860EF036CF11B90C1782103CBD6B9 | SHA256:573203F7B67B03B0D813CA13A8B715CA38A5279946C10B4D3CE7692DB6EE58E5 | |||
| 6532 | SumatraPDF-3.5.2-64.exe | C:\Users\admin\AppData\Roaming\SumatraPDF\sumatrapdfcache\def0947781beb936cc9c85eaccc0e63a.png | image | |
MD5:5C9D7E1903A22302CACF44CB43818612 | SHA256:47B70353A7CCFC451003665CD8BDC85E7D6B66E30376046891B43F9AE2A1CFBF | |||
| 4976 | PDFixers.exe | C:\Users\admin\Desktop\SumatraPDF.lnk | binary | |
MD5:9FD0D38A880CA3E68418CDFE712539D2 | SHA256:CB0E469FBBE331F3AB6BF8016DE518AB7866B3D31BC2677BB80FCE82CC34D29D | |||
| 4976 | PDFixers.exe | C:\Users\admin\AppData\Roaming\SumatraPDF\SumatraPDF-3.5.2-64.exe | executable | |
MD5:C02DC2CA96FE9841963883C0FE177399 | SHA256:290E4AA7ED64C728138711C011E89AAB7AA48DBC1AE430371DC2BE4100B92BF0 | |||
PID | Process | Method | HTTP Code | IP | URL | CN | Type | Size | Reputation |
|---|---|---|---|---|---|---|---|---|---|
4976 | PDFixers.exe | GET | 200 | 142.250.185.163:80 | http://c.pki.goog/r/gsr1.crl | unknown | — | — | whitelisted |
4976 | PDFixers.exe | GET | 200 | 142.250.185.163:80 | http://c.pki.goog/r/r4.crl | unknown | — | — | whitelisted |
4976 | PDFixers.exe | GET | 200 | 142.250.185.163:80 | http://c.pki.goog/r/r1.crl | unknown | — | — | whitelisted |
4976 | PDFixers.exe | GET | 200 | 142.250.185.163:80 | http://o.pki.goog/wr2/MFEwTzBNMEswSTAJBgUrDgMCGgUABBRTQtSEi8EX%2BbYUTXd8%2ByMxD3s1zQQU3hse7XkV1D43JMMhu%2Bw0OW1CsjACEGs31zQSL0RFCna%2BsoPon%2Bg%3D | unknown | — | — | whitelisted |
4976 | PDFixers.exe | GET | 200 | 142.250.185.163:80 | http://o.pki.goog/wr2/MFIwUDBOMEwwSjAJBgUrDgMCGgUABBRTQtSEi8EX%2BbYUTXd8%2ByMxD3s1zQQU3hse7XkV1D43JMMhu%2Bw0OW1CsjACEQDBBI61buTJSxBPkvvajAV6 | unknown | — | — | whitelisted |
4760 | svchost.exe | GET | 200 | 184.30.21.171:80 | http://www.microsoft.com/pkiops/crl/MicSecSerCA2011_2011-10-18.crl | unknown | — | — | whitelisted |
3708 | svchost.exe | GET | 200 | 192.229.221.95:80 | http://ocsp.digicert.com/MFEwTzBNMEswSTAJBgUrDgMCGgUABBSAUQYBMq2awn1Rh6Doh%2FsBYgFV7gQUA95QNVbRTLtm8KPiGxvDl7I90VUCEAJ0LqoXyo4hxxe7H%2Fz9DKA%3D | unknown | — | — | whitelisted |
3292 | SIHClient.exe | GET | 200 | 184.30.21.171:80 | http://www.microsoft.com/pkiops/crl/Microsoft%20ECC%20Product%20Root%20Certificate%20Authority%202018.crl | unknown | — | — | whitelisted |
3292 | SIHClient.exe | GET | 200 | 184.30.21.171:80 | http://www.microsoft.com/pkiops/crl/Microsoft%20ECC%20Update%20Secure%20Server%20CA%202.1.crl | unknown | — | — | whitelisted |
1492 | backgroundTaskHost.exe | GET | 200 | 192.229.221.95:80 | http://ocsp.digicert.com/MFEwTzBNMEswSTAJBgUrDgMCGgUABBQ50otx%2Fh0Ztl%2Bz8SiPI7wEWVxDlQQUTiJUIBiV5uNu5g%2F6%2BrkS7QYXjzkCEAn5bsKVVV8kdJ6vHl3O1J0%3D | unknown | — | — | whitelisted |
PID | Process | IP | Domain | ASN | CN | Reputation |
|---|---|---|---|---|---|---|
4 | System | 192.168.100.255:138 | — | — | — | whitelisted |
4760 | svchost.exe | 51.124.78.146:443 | settings-win.data.microsoft.com | MICROSOFT-CORP-MSN-AS-BLOCK | NL | whitelisted |
6224 | RUXIMICS.exe | 51.124.78.146:443 | settings-win.data.microsoft.com | MICROSOFT-CORP-MSN-AS-BLOCK | NL | whitelisted |
2120 | MoUsoCoreWorker.exe | 51.124.78.146:443 | settings-win.data.microsoft.com | MICROSOFT-CORP-MSN-AS-BLOCK | NL | whitelisted |
4976 | PDFixers.exe | 104.21.11.17:443 | pixel.pdfixers.com | CLOUDFLARENET | — | unknown |
4976 | PDFixers.exe | 142.250.185.163:80 | c.pki.goog | GOOGLE | US | whitelisted |
4976 | PDFixers.exe | 216.58.206.74:443 | fonts.googleapis.com | GOOGLE | US | whitelisted |
4976 | PDFixers.exe | 142.250.181.227:443 | fonts.gstatic.com | GOOGLE | US | whitelisted |
4760 | svchost.exe | 51.104.136.2:443 | settings-win.data.microsoft.com | MICROSOFT-CORP-MSN-AS-BLOCK | IE | whitelisted |
4760 | svchost.exe | 184.30.21.171:80 | www.microsoft.com | AKAMAI-AS | DE | whitelisted |
Domain | IP | Reputation |
|---|---|---|
settings-win.data.microsoft.com |
| whitelisted |
google.com |
| whitelisted |
pixel.pdfixers.com |
| unknown |
c.pki.goog |
| whitelisted |
fonts.googleapis.com |
| whitelisted |
o.pki.goog |
| whitelisted |
fonts.gstatic.com |
| whitelisted |
www.microsoft.com |
| whitelisted |
client.wns.windows.com |
| whitelisted |
login.live.com |
| whitelisted |