MALICIOUS
126
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1203 Exploitation for Client Execution
The PDF file contains numerous external links, many pointing to compromised WordPress upload directories, indicating it functions as a link farm. The ClamAV detection as 'Pdf.Phishing.Trojan' further supports a malicious intent, likely to redirect users to phishing sites or download further malware. No scripts were extracted, but the structure suggests a malicious document designed for initial access via phishing.
Machine Learning
- Nyx PDF Classifier suspicious score 0.3396
Heuristics 6
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ClamAV: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0 critical CLAMAV_DETECTIONClamAV detected this file as malware: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0
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PDF link farm points to compromised-WordPress upload storage medium PDF_COMPROMISED_CMS_UPLOAD_LINK_FARMPDF contains multiple clickable links, across many distinct hosts, whose targets are random-slug files parked in the upload directories of vulnerable WordPress form plugins (FormCraft, Super Forms). This is the hallmark of the 'free document/template' SEO phishing PDF family, which ranks for search queries and routes users into payload/redirect chains hosted on compromised sites. The PDF itself carries no exploit — the risk is the linked destinations.
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Small PDF is a non-clustered link farm on disposable hosting medium PDF_SEO_DISPOSABLE_LINK_FARMSmall PDF contains many clickable external PDF links spread thin across many distinct hosts (no single dominant host), corroborated by a utm_term SEO-redirector link and/or links parked on free/disposable content hosts. This is the 'free document/template' SEO phishing PDF family, which ranks for search queries and routes users into payload/redirect chains, rather than a normal document citation pattern. The PDF itself carries no exploit — the risk is the linked destinations.
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External URI info PDF_URIPDF contains an external URL action
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PDF differential parser failed info PDF_DIFFERENTIAL_PARSE_FAILEDThe cross-check parser (pdfminer.six) failed on this file: PDF differential parser failed: PDFSyntaxError. Static heuristics still ran and any of their findings above are valid; only the differential cross-check signal is missing.
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Embedded URL info EMBEDDED_URLOne or more URLs were extracted from the document. The URL itself is not a detection — see the per-URL labels for which channel (macro, JS, link annotation, document body, ...) reached each URL.URL https://ka-base.no/images_content/file/muxapuxufukuxapa.pdf In PDF document text
- https://ddriu.hu/wp-content/plugins/super-forms/uploads/php/files/9ea468280d6432e8baf6bd2a9d204970/83957742356.pdfIn PDF document text
- https://www.rydalmereprestige.com.au/wp-content/plugins/super-forms/uploads/php/files/5gfukfsr6dbd5glsn4egv7nmss/gedisabujaxifezuripexa.pdfIn PDF document text
- https://f1com.ge/wp-content/plugins/super-forms/uploads/php/files/0e77e102d83025152b351b6cb57c6fd1/98212790850.pdfIn PDF document text
- https://www.energetisch-therapeut-estie.nl/wp-content/plugins/formcraft/file-upload/server/content/files/160c11ea24ccb5---4041932352.pdfIn PDF document text
- https://canadianrelocation.net/wp-content/plugins/formcraft/file-upload/server/content/files/1607ce4360d12f---fezatatelutajojixedotiji.pdfIn PDF document text
- http://dok-vo.ru/userfiles/file/kazukifepufi.pdfIn PDF document text
- http://phamtrangia.com/upload/files/88144823280.pdfIn PDF document text
- http://agapetown.net/ckfinder/userfiles/files/611394324.pdfIn PDF document text
- http://marketypik.pl/zdjecia/fck/file/74356054613.pdfIn PDF document text
- http://kubak-ubezpieczenia.pl/userfiles/file/1035705355.pdfIn PDF document text
- http://gojjang.com/uploads/files/42494101826.pdfIn PDF document text
- http://www.optionassurance.ca/wp-content/plugins/formcraft/file-upload/server/content/files/16071241bca7b7---75366648038.pdfIn PDF document text
- http://jedwines.com/cmsCart//upload/file/fozejawubigokesudisu.pdfIn PDF document text
- http://www.1000ena.com/wp-content/plugins/formcraft/file-upload/server/content/files/160b197b87dcbe---44153443539.pdfIn PDF document text
- http://www.1000ena.com/wp-content/plugins/formcraft/file-upload/server/content/files/160c559e904217---padaxira.pdfIn PDF document text
- http://df-2.de/images/daten/file/69596271853.pdfIn PDF document text
- https://wurstfargo.com/wp-content/plugins/super-forms/uploads/php/files/a28d753e9ccd558f8bb9cedf5f3b6c11/7155806390.pdfIn PDF document text
- http://thegioituigiay.net/uploads/files/giluvamemosamijopusojiraf.pdfIn PDF document text
- http://nhs1980alumni.com/clients/878257/File/81375093149.pdfIn PDF document text
- http://aiken7050.com/clients/5/51/510ae66c864a6d23552e02d1b5190e2c/File/mujosozelabi.pdfIn PDF document text
- http://cheumst.com/upload/fckeditor/file/27962641835.pdfIn PDF document text
- https://feedproxy.google.com/~r/Uplcv/~3/YTWXjIUwRh0/uplcv?utm_term=top+songs+without+wordsPDF link annotation
- http://dejavu.sourceforge.netIn PDF document text
- http://dejavu.sourceforge.net/wiki/index.php/LicenseIn PDF document text
Extracted artifacts 3
Files carved from inside the sample during analysis.
| Filename | Kind | Source | Size |
|---|---|---|---|
font_00_sfnt_off0000fc21.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xFC21 | 10480 bytes |
SHA-256: 1a5380647295345f766156df9b9082bc952c00fd38f3cad6fa9f722d96852c16 |
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font_01_sfnt_off000113c1.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x113C1 | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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font_02_sfnt_off00012bd3.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x12BD3 | 16764 bytes |
SHA-256: 635fed34fbf11c4ca3934b72bf3ac3a7e9988369df019ced75cf8b5680384139 |
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