MALICIOUS
96
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1204.002 Malicious Link
The PDF contains a large number of embedded URLs, many of which point to compromised WordPress sites or disposable domains. This behavior is indicative of a link farm, likely used for SEO manipulation or to distribute further malicious content. The ML classifier also strongly flagged this PDF as malicious.
Machine Learning
- Nyx PDF Classifier malicious score 0.9964
Heuristics 5
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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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Object number defined twice with different bodies info PDF_DUPLICATE_OBJ_BODY_INCREMENTALThe same indirect object (N G) is defined more than once with different body bytes. First-wins and last-wins readers will resolve different content, which is a parser-confusion shape used by targeted PDFs. Body-only differences are common in benign incremental updates, so severity is raised only when the duplicate carries active content.
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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://pistant.ru/uplcv?utm_term=flamenco+sketches+chords+pdf PDF link annotation
- https://www.grandeprairie.org/wp-content/plugins/formcraft/file-upload/server/content/files/1606f5165082ec---gunimodujexo.pdfIn PDF document text
- http://czdashan.cn/uploadfile/file/2021043015030273499.pdfIn PDF document text
- http://np-laser.com/upload_fck/file/2021-7-12/20210712211704637252.pdfIn PDF document text
- https://braviengenharia.com.br/wp-content/plugins/super-forms/uploads/php/files/4303gjp7s3l1fiudanh7bi9dm0/58060336039.pdfIn PDF document text
- http://bagpack.com.np/wp-content/plugins/formcraft/file-upload/server/content/files/1606cbdb67b09e---86416184994.pdfIn PDF document text
- https://shiphangnhanh.net/uploads/image/files/69265606193.pdfIn PDF document text
- https://www.gml.de/wp-content/plugins/formcraft/file-upload/server/content/files/16080a72f053a4---pamidemopesavif.pdfIn PDF document text
- http://meuble-tunisie.com/userfiles/file/58275329365.pdfIn PDF document text
- http://jenan.com/ckfinder/userfiles/files/sowafenelijuwulo.pdfIn PDF document text
- http://yukamifashion.com/upload/files/70596097494.pdfIn PDF document text
- https://echipamente-scule.ro/userfiles/file/23355415335.pdfIn PDF document text
- https://arch.ua/ckfinder/userfiles/files/ziwoxujafisesurorulud.pdfIn PDF document text
- http://www.deadclan.nl/wp-content/plugins/formcraft/file-upload/server/content/files/16090c6ff30415---zegokizeguganip.pdfIn PDF document text
- https://visaonline-vn.com/wp-content/plugins/super-forms/uploads/php/files/u6oov4qaal77o3nvsc3acea2iv/67250265679.pdfIn PDF document text
- https://xeroxexpres.cz/userfiles/file/basogusivujuwalevado.pdfIn PDF document text
- https://stef-nancy.fr/upload/document/6020252519.pdfIn PDF document text
- http://pck.malopolska.pl/wp-content/plugins/super-forms/uploads/php/files/3bef5708f65c511a4cb32e08e5f648b9/87291017100.pdfIn PDF document text
- http://www.mtpartnersfl.com/wp-content/plugins/formcraft/file-upload/server/content/files/160c23b833d96a---julataxiwojopil.pdfIn PDF document text
- https://theshairpodcast.com/wp-content/plugins/super-forms/uploads/php/files/7aafeb0ac2527dc2e11875206b330344/22577635808.pdfIn PDF document text
- http://zulassungsservice4you.de/bilder/file/9235277839.pdfIn PDF document text
- https://psfund.org/public/uploads/files/cms_files/71509361331.pdfIn PDF document text
- http://evolutionchonburi.com/userfiles/files/ziredijilatu.pdfIn PDF document text
- http://www.w3.org/1999/02/22-rdf-syntax-ns#In PDF document text
- http://purl.org/dc/elements/1.1/In PDF document text
- http://ns.adobe.com/pdf/1.3/In PDF document text
- http://ns.adobe.com/xap/1.0/In PDF document text
- http://ns.adobe.com/xap/1.0/mm/In PDF document text
- http://ns.adobe.com/xap/1.0/rights/In PDF document text
- 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_off0000d685.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xD685 | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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font_01_sfnt_off0000ee97.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xEE97 | 20904 bytes |
SHA-256: 0de21344d4d8851937f4aeb299aee302c09577d4579bdea3ecd6a2ffb0feb85d |
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font_02_sfnt_off000122aa.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x122AA | 10864 bytes |
SHA-256: 796e33dc3408fa0dc606b76372f97aad7cbfe18dcf4dafed4fa909ae0910cbfb |
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