MALICIOUS
156
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1203 Exploitation for Client Execution
The PDF document contains numerous embedded URLs, many of which point to compromised WordPress sites. Heuristics indicate these are part of a link farm designed to lure users to external content. ClamAV detection and ML classification confirm the malicious nature of the PDF, likely serving as a phishing or malware distribution vector.
Machine Learning
- Nyx PDF Classifier malicious score 0.9973
Heuristics 6
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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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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 http://www.auditsi.com/wp-content/plugins/formcraft/file-upload/server/content/files/1613134672f156---27324214684.pdf In PDF document text
- https://em.heephong.org/ethnicminorities/cmsadmin/ckfinder/files/mevesijafe.pdfIn PDF document text
- http://escuelasfutbol8.com/docs/files/lilugexorujufagabaj.pdfIn PDF document text
- http://podarox.ru/public/files/fegigu.pdfIn PDF document text
- http://rusiuojigalvoji.lt/wp-content/plugins/formcraft/file-upload/server/content/files/16130216ff0d94---nowaxugapupuw.pdfIn PDF document text
- https://bankubezpieczen.pl/userfiles/file/83578630888.pdfIn PDF document text
- https://svingenieria.cl/userfiles/file/gobekewidiro.pdfIn PDF document text
- https://nusamulticentralestari.com/Uploads/userfiles/files/muxuwileguwosulolib.pdfIn PDF document text
- https://thieumaunao.vn/workspace/develop/uploads/ck_upload/files/33238751455.pdfIn PDF document text
- http://thelifelesson.net/home/tappingchanges/public_html/dowalumniusa/ckfinder/userfiles/files/kunez.pdfIn PDF document text
- http://aydinservis.com/ckfinder/userfiles/files/giriwimopazisukazaxojaje.pdfIn PDF document text
- http://www.kliningstroy.ru/wp-content/plugins/formcraft/file-upload/server/content/files/1613e4b5700af3---12623602727.pdfIn PDF document text
- http://preprod.app-nomads.com/ugecam/admin/ckfinder/userfiles/files/92282156779.pdfIn PDF document text
- http://ok-poland.com/userfiles/file/xelilatetorevepoje.pdfIn PDF document text
- https://shen-su.eu/gfx/userfiles/files/vifoporugelomijape.pdfIn PDF document text
- https://idealist.ro/userfiles/file/zuperojonuzedajofitabuxuw.pdfIn PDF document text
- https://go2germany.ru/files/file/1851839615.pdfIn PDF document text
- http://xn----7sbakif2a3azdub.xn--p1ai/admin/ckfinder/userfiles/files/kabulokuvopibob.pdfIn PDF document text
- https://producedepot.us/userfiles/files/77691030939.pdfIn PDF document text
- http://gearonlaw.net/customer/3/d/9/3d947ad6ce2568d98b832ccf5548371bFile/jakadomediduti.pdfIn PDF document text
- https://wscnaturalhealings.com/wp-content/plugins/super-forms/uploads/php/files/72b857e84479960dae9d86a766ed5569/pomiguzeko.pdfIn PDF document text
- http://bmfjhjk.friend-match.com/upload/files/77835011123.pdfIn PDF document text
- https://alwaysthesame.pt/site/upload/file/pubebetifunifisebo.pdfIn PDF document text
- http://www.homefacelifters.com/wp-content/plugins/super-forms/uploads/php/files/539cbea4c263ace7a2d5dfa2746b48a0/jopowabafosumopoxamu.pdfIn PDF document text
- https://feedproxy.google.com/~r/1eyvgo/aqOO/~3/GLLx1DTH0VQ/uplcv?utm_term=apk+anti+malwarePDF 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_off0000be98.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xBE98 | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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font_01_sfnt_off0000d6aa.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xD6AA | 17216 bytes |
SHA-256: 74a160adc0a905e189828388ad211bfaaae6bfb16457179bee1676cca1c40bc7 |
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font_02_sfnt_off000102bf.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x102BF | 10284 bytes |
SHA-256: 3e2d198e3176e7b8c72434ff1e72d4f2b6b6620a8eabbd9ec44d9c893b142331 |
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