MALICIOUS
104
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
The PDF contains embedded JavaScript and numerous external links, many of which point to compromised WordPress sites or disposable hosting. The heuristic 'PDF_SEO_DISPOSABLE_LINK_FARM' indicates a tactic to disguise malicious links within a large number of redirects. The embedded JavaScript likely facilitates the redirection or further malicious activity.
Machine Learning
- Nyx PDF Classifier malicious score 0.9978
Heuristics 6
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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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Embedded JS stream low PDF_JSPDF references a /JS stream. Generic JavaScript is common in benign forms; specific dangerous APIs are scored by separate rules.
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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://irlanc.ru/uplcv?utm_term=update+apps+on+android+tablet PDF link annotation
- https://rdsdealers.com/ckfinder/userfiles/files/jinijikozomi.pdfIn PDF document text
- https://macintosh-szerviz-javitas.nuttydog.hu/ckfinder/userfiles/files/95101001982.pdfIn PDF document text
- http://vouchertiket.com/airplane/ckeditor/uploads/files/bejiluxapuxosufejaroxosip.pdfIn PDF document text
- http://galeriejacqueselbaz.com/userfiles/file/boviwulogaboxobi.pdfIn PDF document text
- http://evo-models.com/uploads/userfiles/files/63569074409.pdfIn PDF document text
- https://tezerwatch.com/file/upload/files/09-09-22-24-52-55.pdfIn PDF document text
- http://pfmconsulting.org/survey/userfiles/files/97934771325.pdfIn PDF document text
- http://pelejas.com/IMAGENS/CKFINDER/files/39165177707.pdfIn PDF document text
- http://ifaistos.reality.gr/~triantaf/images/file/lalika.pdfIn PDF document text
- http://kvrhousing.com/uploads/liwidedagodufo.pdfIn PDF document text
- http://thuocnam.xyz/images/files/pumalebakezaxegijamarik.pdfIn PDF document text
- http://www.kreasoft.mx/wp-content/plugins/formcraft/file-upload/server/content/files/1613fda093e47a---mavoxeduvizo.pdfIn PDF document text
- https://cet.sk/res/file/diwukimekexiba.pdfIn PDF document text
- http://come2menorca.com/images/file/tojevimidijoko.pdfIn PDF document text
- http://kemenyseprosiklos.hu/upload/file/89328853245.pdfIn PDF document text
- https://torrentclub.vip/wp-content/plugins/super-forms/uploads/php/files/10unfv87oars8ic4sa0km7bdvl/10467456381.pdfIn PDF document text
- http://originalbau.hu/imagesfiles/jefajutegokuxanisakogix.pdfIn PDF document text
- http://portofmiamitunnel.com/system/js/back/ckfinder/userfiles/files/mubanolej.pdfIn PDF document text
- https://posh.hr/files/gefatunasupa.pdfIn PDF document text
- http://machinegroup.ru/img/outer/files/94706374876.pdfIn PDF document text
- https://www.pietri-automobiles.com/wp-content/plugins/super-forms/uploads/php/files/kpmoft9ntsisr17g3i7h746sm9/jolef.pdfIn PDF document text
- http://xn----ftbkdcamitb5h.xn--p1acf/files/fck/file/18639733943.pdfIn PDF document text
- http://celcg.pl/uploaded/file/28779659487.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_off0000d1b4.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xD1B4 | 10532 bytes |
SHA-256: 707679469e224650cdb6110412ff58d671b1fa6ed189fc0f340e25e0439d8f0d |
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font_01_sfnt_off0000e991.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xE991 | 16928 bytes |
SHA-256: fb2d17b883860fccf35428aaca856335517f01114f8ac09b3c6a97de98611a96 |
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font_02_sfnt_off00011573.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x11573 | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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