MALICIOUS
156
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
The sample was detected as malicious by ML classifiers and ClamAV, indicating a high likelihood of malicious intent. It contains numerous external links, many pointing to compromised WordPress sites and disposable hosting, suggesting a link farm designed to redirect users to malicious content. The presence of embedded URLs and the nature of the heuristics strongly suggest this PDF is used as a lure, likely for phishing or to download further malware.
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 https://fastcomputer.vn/wp-content/plugins/super-forms/uploads/php/files/5ccc5b2469afbe8623abef8eb583b31c/46395432950.pdf In PDF document text
- http://sushiosushi.com/uploads/files/91767045338.pdfIn PDF document text
- https://m-co.de/wp-content/plugins/super-forms/uploads/php/files/uk3q5ui9bmd44m866silau6tje/79091774893.pdfIn PDF document text
- https://travelstore.tn/userfiles/file/82092426552.pdfIn PDF document text
- https://www.northwoodmedical.ca/wp-content/plugins/super-forms/uploads/php/files/mpns7oauu28i0i0onlf3pnohfk/disegetipesugok.pdfIn PDF document text
- http://xn----7sbab1bcaqplb0ccyi9d.xn--p1ai/files/file/99806233074.pdfIn PDF document text
- http://eurekaelearning.com/upload/news/file/badifuwepuleginonudafobus.pdfIn PDF document text
- http://vladjurnalist.ru/archive/file/90550894196.pdfIn PDF document text
- http://www.neslihanonur.com/wp-content/plugins/super-forms/uploads/php/files/2b52fa7c4bc4983993bcd56de9cbb877/33553739672.pdfIn PDF document text
- http://www.idenet.net/wp-content/plugins/formcraft/file-upload/server/content/files/1608522542380c---milogif.pdfIn PDF document text
- http://banglatalkies.com/dynamic-images/cms/file/warapixos.pdfIn PDF document text
- https://ceadersvalet.com/wp-content/plugins/formcraft/file-upload/server/content/files/160c61c36253da---23866389364.pdfIn PDF document text
- https://wills.sg/wp-content/plugins/super-forms/uploads/php/files/464cf517393f5244571acc47b87c9495/dezewogojip.pdfIn PDF document text
- http://www.hptindia.com/wp-content/plugins/formcraft/file-upload/server/content/files/16076820ca6db6---lotoneguzinofiluleko.pdfIn PDF document text
- https://ifacemount.com/wp-content/plugins/super-forms/uploads/php/files/ea2dfaalkjggvk02e0n8r57mci/sifukawafej.pdfIn PDF document text
- https://giridhareye.org/ckfinder/userfiles/files/dekomurig.pdfIn PDF document text
- http://smit-electronic.hr/upload/datoteke/53947329776.pdfIn PDF document text
- http://yuanjen.com/ckfinder/userfiles/files/9154574364.pdfIn PDF document text
- http://wilkinsconnection.com/clients/9/94/94ba1e7d864c5c8af3bb481f5f9f31de/File/vovekejivesinuj.pdfIn PDF document text
- https://bursaceviritercume.com/wp-content/plugins/formcraft/file-upload/server/content/files/160c125afe69f7---86764631600.pdfIn PDF document text
- http://monktonlionsclubkidscamp.com/clients/9/99/99b8b5517e5fb663501b7ee5137ebf55/File/50722904260.pdfIn PDF document text
- http://perfectthesale.com/wp-content/plugins/formcraft/file-upload/server/content/files/1606f01fff2a1e---lusetivolazibefomumujowe.pdfIn PDF document text
- https://travelselection.us/wp-content/plugins/formcraft/file-upload/server/content/files/160a71a2caa37f---45491620512.pdfIn PDF document text
- https://feedproxy.google.com/~r/1eyvgo/aqOO/~3/fzgW7-mxBc0/uplcv?utm_term=un+centimetro+cuadrado+cuantos+metros+cuadrados+tienePDF 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_off00013fad.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x13FAD | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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font_01_sfnt_off000157c4.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x157C4 | 10592 bytes |
SHA-256: 0e96aa4774c23a923e3baf46653e43bb545e5cdebdf67cccacfbe7399f760886 |
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font_02_sfnt_off00016fef.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x16FEF | 18684 bytes |
SHA-256: 3e42f112dfaec494be555e74be30fc0cfb5e5b9c91cd10bb4aa8a89793ebaf61 |
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