MALICIOUS
166
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
The PDF contains multiple embedded links, many pointing to compromised CMS upload storage, suggesting a link farm designed to redirect users. The ML classifier and ClamAV detection strongly indicate malicious intent, likely for phishing or malware delivery. No scripts were extracted, but the presence of numerous external links and the 'SEO_UTM_REDIRECTOR_LINK' heuristic point to a social engineering attack.
Machine Learning
- Nyx PDF Classifier malicious score 0.9919
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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Image lure linking to an SEO redirector (free-download phishing) high PDF_SEO_UTM_REDIRECTOR_LINKPDF embeds an image with little or no body text and a clickable link to a multi-word utm_term / FeedBurner-proxied SEO redirector — the 'free ebook / solution-manual / document download' phishing family that ranks for natural-language search queries and routes the user into a payload/redirect chain. The PDF carries no exploit; the risk is the linked destination. Flagged structurally (image lure + SEO redirector) so it does not depend on a ClamAV/ML signature, and regardless of how many filler text pages the lure carries.
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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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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://autotronics.vn/userfiles/file/sexezanobomazero.pdf In PDF document text
- http://www.ddd-iasi.ro/wp-content/plugins/formcraft/file-upload/server/content/files/160910382ea411---29839137389.pdfIn PDF document text
- https://rmissio.pl/wp-content/plugins/formcraft/file-upload/server/content/files/160c7bb0f820a1---64814860355.pdfIn PDF document text
- http://thedreams.cz/files/wesukedeborazabinulatem.pdfIn PDF document text
- http://alexforstarlight.com/clients/4/41/4125d763bdae894b2c088b8c4c0f4705/File/giregugov.pdfIn PDF document text
- http://adance0112.com/upfile/editor/file/33268016491.pdfIn PDF document text
- http://am-assets.com/aom/magnolia/userfiles/file/jukeduridudoxiro.pdfIn PDF document text
- https://invest.pl/userfiles/file/muwufutakadoxel.pdfIn PDF document text
- https://maidintown.co.uk/wp-content/plugins/super-forms/uploads/php/files/1bb71c5b98406857cc61c8412451cc8c/lalurivatuzifiluforogun.pdfIn PDF document text
- http://www.scmphotography.co.uk/wp-content/plugins/formcraft/file-upload/server/content/files/1608e922ebf6e2---12316700850.pdfIn PDF document text
- https://mission4recruitment.com/wp-content/plugins/formcraft/file-upload/server/content/files/160c29e8a8f408---98675832614.pdfIn PDF document text
- http://english-island.pl/wp-content/plugins/super-forms/uploads/php/files/lfli2ce51foeio1bcqlkpglp17/88331603091.pdfIn PDF document text
- http://everettsbarbque.com/clients/b/b0/b0b566c85bab127526a414587b81487f/File/74947696327.pdfIn PDF document text
- https://bizdrive.nl/wp-content/plugins/formcraft/file-upload/server/content/files/1/160be425b25d5c---redebikizonumem.pdfIn PDF document text
- https://centrumschoolka.pl/photos/file/kudukevu.pdfIn PDF document text
- https://elitestrategyglobal.com/wp-content/plugins/super-forms/uploads/php/files/abd742b35e4daa338c742a73b44e3721/lojugejarukuv.pdfIn PDF document text
- http://countrysquirefoods.com/wp-content/plugins/formcraft/file-upload/server/content/files/1607466ce546d0---51448064979.pdfIn PDF document text
- http://tavernadelsnoguers.com/wp-content/plugins/super-forms/uploads/php/files/224b064bf1735e0b38ef1fc354005451/bonigafavedukus.pdfIn PDF document text
- http://daebokjungdb.com/uploads/files/64327402760.pdfIn PDF document text
- http://hilltoplancers1975.com/clients/13753/File/bavog.pdfIn PDF document text
- https://recapress.com/ckfinder/userfiles/files/57054790231.pdfIn PDF document text
- https://feedproxy.google.com/~r/skout/mBVl/~3/GLLx1DTH0VQ/uplcv?utm_term=word+link+level+208PDF link annotation
- 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_off0002cb93.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x2CB93 | 10412 bytes |
SHA-256: ae2ca3a3a2e45c3a50dbafe400879e9ea94d6b4a63fd6c24c3dc55a6ff4a3cd3 |
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font_01_sfnt_off0002e342.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x2E342 | 16800 bytes |
SHA-256: 31041416e43ac5a12d55c7f04e308533bba8cf71f52700cd1e4d4cdcc54d102b |
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font_02_sfnt_off00030ede.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x30EDE | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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