MALICIOUS
104
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1204.002 Malicious Link
This PDF document was flagged as malicious by an ML classifier. The file embeds a large number of external links characteristic of an SEO link farm, many hosted on compromised CMS upload directories and presents a deceptive download button. Specific URLs and indicators for this sample are listed in the indicators section.
Machine Learning
- Nyx PDF Classifier malicious score 0.9990
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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Visual download / call-to-action button lure low SE_DOWNLOAD_BUTTONDocument contains a call-to-action phrase ('Click here to download', 'Download Now', etc.) — low-signal unless other findings point to a malicious workflow
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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://nomylo.ru/uplcv?utm_term=sisat+materiales+primaria+pdf PDF link annotation
- https://geneticapanama.com/userfiles/file/lujumigu.pdfIn PDF document text
- http://emploi.nat.tn/ckeditor/ckfinder/userfiles/files/65903423497.pdfIn PDF document text
- http://beckydavidsonhomes.com/wp-content/plugins/formcraft/file-upload/server/content/files/1613e0c0c42c7d---18022097252.pdfIn PDF document text
- http://agisinfo.ru/uploads/content/files/kosigagibe.pdfIn PDF document text
- https://viscom.bg/uploads/wysiwyg/files/25767818482.pdfIn PDF document text
- http://oikoscoccatoarchitettura.com/userfiles/files/31637394148.pdfIn PDF document text
- https://rosanaalvarracin.com/userfiles/file/zadoxulaxivadedojekunozu.pdfIn PDF document text
- http://fruitsad.pl/images/file/96521921848.pdfIn PDF document text
- http://natalieshuff.com/uploads/file/32354787016.pdfIn PDF document text
- https://paron-rebondir.com/uploads/files/34456648778.pdfIn PDF document text
- https://butagallery.com/userfiles/files/70676222872.pdfIn PDF document text
- http://alnadaoil.com/userfiles/file/13305143124.pdfIn PDF document text
- https://www.golddustdental.com/wp-content/plugins/formcraft/file-upload/server/content/files/16136f02bc2b76---51849372233.pdfIn PDF document text
- http://canavesiobruno-architetti.it/userfiles/files/sitebotuguzejivujifovuj.pdfIn PDF document text
- http://ain.proximeo.com/ckfinder/userfiles/files/sujaninaga.pdfIn PDF document text
- http://caribsplash.org/wp-content/plugins/formcraft/file-upload/server/content/files/1613f045dd1ece---70693904724.pdfIn PDF document text
- http://milcontabil.com.br/wp-content/plugins/super-forms/uploads/php/files/bi05iemqnh805rorak7t3jnpf0/98052759638.pdfIn PDF document text
- http://osteriadelcampanile.com/userfiles/files/nejezijepafogokofivoroba.pdfIn PDF document text
- http://eviljoy.com/UserFiles/File/95528833118.pdfIn PDF document text
- https://jbdclothiers.net/emailer/userfiles/file/lazizixut.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_off0000c483.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xC483 | 16696 bytes |
SHA-256: 194ee89061e8f25a41e7a87ad325e13ae44f056dbcae85f5eef6575a3ca46d33 |
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font_01_sfnt_off0000ef77.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xEF77 | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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font_02_sfnt_off0001078e.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x1078E | 10512 bytes |
SHA-256: 75a748b174a4f08033910f5080c2b629e87433412a46d2e456e88966a5bde558 |
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