MALICIOUS
172
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
This PDF file contains embedded JavaScript and numerous external links, many pointing to compromised CMS uploads or disposable hosting. The heuristics indicate a link farm designed to trick users into downloading malicious files, as suggested by the 'SE_DOWNLOAD_BUTTON' firing and the ClamAV detection. The embedded JavaScript likely facilitates the download or execution of a second-stage payload.
Machine Learning
- Nyx PDF Classifier malicious score 0.9948
Heuristics 8
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ClamAV: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0 critical CLAMAV_DETECTIONClamAV detected this file as malware: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0
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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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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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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://pixomot.ru/uplcv?utm_term=apk+best+tv
- https://butagallery.com/userfiles/files/10674171826.pdf
- http://tko.wavedev.net/img/files/files/kozoworataruxekumamatagag.pdf
- http://szakkepzosiklos.hu/upload/file/sukexezadudaverapazave.pdf
- https://hoffmanowska.pl/wp-content/plugins/formcraft/file-upload/server/content/files/1613b038db349b---77789370343.pdf
- http://studiomalpocher.it/userfiles/files/78299027932.pdf
- http://recruiters-zone.com/wp-content/plugins/formcraft/file-upload/server/content/files/16131abc28e7b6---97257739642.pdf
- https://www.lang-mayer.de/wp-content/plugins/formcraft/file-upload/server/content/files/1613292cf248bb---83894007269.pdf
- https://parisautotravel.com/wp-content/plugins/super-forms/uploads/php/files/vtja5e07ka740bgsls2it2o3v5/pidosef.pdf
- https://www.lipfish.no/wp-content/plugins/formcraft/file-upload/server/content/files/1613f6d51b7b67---9066593444.pdf
- https://masini-de-ambalat.ro/images/userfiles/52889668126.pdf
- http://kurumakaitori-one.com/js/upload/files/zanedopotozogokulinom.pdf
- http://paradisoseminatrici.it/userfiles/files/25383992344.pdf
- https://stl-log.com/htdocs/cljr/data/files/24409345968.pdf
- http://gattoneva.pl/pages/userfiles/file/mapesadukefijozumaraz.pdf
- https://butagallery.com/userfiles/files/sitamowisoxepe.pdf
- http://aeskulap24h.com/wp-content/plugins/formcraft/file-upload/server/content/files/1613c70f12232f---mitixevuwaj.pdf
- https://habibitours.net/ckfinder/userfiles/files/89833601905.pdf
- https://vhcvietnam.vn/ckeditor/images/files/24289549852.pdf
- http://aquarium-kochi.com/app/webroot/ckfinder/userfiles/files/85965130996.pdf
- https://theptaynam.vn/upload/files/72499732897.pdf
- https://gotoko.com/cmsv2/upload/files/saziviwapiwixiraruk.pdf
- http://arkystudio.eu/userfiles/files/selugugo.pdf
- https://zegaoyun.com/calisma2/files/uploads/misefipadawazavakosofigav.pdf
- http://bagpack.com.np/wp-content/plugins/formcraft/file-upload/server/content/files/16134b6d507593---23014166050.pdf
- http://www.w3.org/1999/02/22-rdf-syntax-ns#
- http://purl.org/dc/elements/1.1/
- http://ns.adobe.com/pdf/1.3/
- http://ns.adobe.com/xap/1.0/
- http://ns.adobe.com/xap/1.0/mm/
- http://ns.adobe.com/xap/1.0/rights/
- http://dejavu.sourceforge.net
- http://dejavu.sourceforge.net/wiki/index.php/License
Extracted artifacts 3
Files carved from inside the sample during analysis.
| Filename | Kind | Source | Size |
|---|---|---|---|
font_00_sfnt_off0000cf54.bin3992ffd0d0fd5ea02273c71c5d4f5aae3ee200efb3b02d4bd254d58441872465 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xCF54 | 16872 bytes |
font_01_sfnt_off0000fb43.bin9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xFB43 | 16792 bytes |
font_02_sfnt_off00011359.bin2406ae3a849753629c167640ee5af725c288c739f80bdfa468146fe92895d110 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x11359 | 9900 bytes |
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