MALICIOUS
196
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
The PDF contains numerous links to compromised WordPress sites, many of which are designed to mimic legitimate file uploads and serve PDF payloads. The 'PDF_RANDOM_URL_LINK' heuristic firing indicates a direct link to a malicious PDF, suggesting the document's primary purpose is to redirect users to malware hosting sites. The ML classifier and ClamAV detection strongly support its malicious nature.
Machine Learning
- Nyx PDF Classifier malicious score 0.9947
Heuristics 7
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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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PDF link to algorithmically-generated URL high PDF_RANDOM_URL_LINKPDF contains a clickable HTTP(S) link whose host looks algorithmically generated (pronounceable-random labels) and whose path/query carries a long high-entropy token. This is the randomized-redirector pattern of malspam phishing lures — the visible document is only a prompt — not a PDF parser vulnerability.
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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://ketchas.ru/uplcv?utm_term=forsyth+county+property+tax+search
- https://cffcommunications.nl/wp-content/plugins/formcraft/file-upload/server/content/files/1/1609ad1bbbdf0f---59160906794.pdf
- https://advancedbusiness.co/wp-content/plugins/super-forms/uploads/php/files/132c2e10f75c511c6e337c534b5b623d/rupipawekefefamopube.pdf
- https://betonwerkendejonge.nl/wp-content/plugins/formcraft/file-upload/server/content/files/1609cb343aa49f---31504193187.pdf
- https://www.dazzlingdecor.co.uk/wp-content/plugins/formcraft/file-upload/server/content/files/16083702dca395---fogufazem.pdf
- http://visualpaint.com/wp-content/plugins/formcraft/file-upload/server/content/files/1607c48c12d0c9---98309179336.pdf
- http://iwish-cosmetics.com/wp-content/plugins/formcraft/file-upload/server/content/files/160c709f5a1335---pulimikiziwuxiludeso.pdf
- https://arenda1s.ru/wp-content/plugins/super-forms/uploads/php/files/5f26a1f6adda5ef0478895ed473279e4/4300624917.pdf
- https://xn-----6kcabagcgfjsxjciriy6alkh6a7aqk.xn--p1ai/wp-content/plugins/super-forms/uploads/php/files/c7f92d383ab64266e27cf4fc92d755de/3897050369.pdf
- https://vmkstroi.ru/wp-content/plugins/super-forms/uploads/php/files/a5811463acaa1a23e31dbb097e56da25/zasosigiwi.pdf
- https://astoriareiki.com/wp-content/plugins/super-forms/uploads/php/files/0326768e0318c86e9ae6645f54936e17/gimatukopikunumi.pdf
- http://pogservice.ru/userfiles/file/nufatenifusuberi.pdf
- https://humanistbeauty.com/wp-content/plugins/super-forms/uploads/php/files/9gosuo223ov2j5cendhnb51p1m/14444481613.pdf
- https://tocgia247.com/wp-content/plugins/super-forms/uploads/php/files/k4dnfbn9anbe5a3c3v92luh6hq/nisozipawogisefobi.pdf
- https://lncl.org/ckfinder/userfiles/files/84207045569.pdf
- http://dedanskecasinoer.dk/userfiles/file/fomalumivuzimatenudibo.pdf
- http://www.sunarnuricomuisvealisverismerkezi.com/wp-content/plugins/super-forms/uploads/php/files/k6r7mh83lqfttm14q1isbt9o91/jokabaloj.pdf
- http://stitesattorney.com/customer/3/d/9/3d947ad6ce2568d98b832ccf5548371bFile/sinekefogoxevu.pdf
- http://jevades.com/aircraft/fckimages/file/70226801720.pdf
- https://www.carlosfunes.es/wp-content/plugins/formcraft/file-upload/server/content/files/1606d2c3de67e9---70230829112.pdf
- https://www.truesdalepainting.com/wp-content/plugins/formcraft/file-upload/server/content/files/160b0682469e7d---64051413931.pdf
- http://akinmedikal.com/uploads/file/losiduma.pdf
- https://limpjet.com.br/wp-content/plugins/super-forms/uploads/php/files/b93e88ecf1d3adea1fe2ba7692db2d81/gasafiwetadazoruvul.pdf
- http://jeugdopdewetenschapsagenda.nl/wp-content/plugins/formcraft/file-upload/server/content/files/160a72173951a4---dewabetegotirubazuwabir.pdf
- http://www.pointcookelectrician.com.au/wp-content/plugins/formcraft/file-upload/server/content/files/1606d23b50dbff---rimoletosekuto.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_off0000f8a7.bin79f65433cfa689668273c460c2742d40fd7ff7001e65ebdc67533f23f6115c61 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xF8A7 | 16712 bytes |
font_01_sfnt_off00012452.bin9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x12452 | 16792 bytes |
font_02_sfnt_off00013c69.bin505f98456eaa98be6a86dff7142fe3c929ed39b7ffe8a2d9ef58342a04a8edd9 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x13C69 | 10628 bytes |
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