MALICIOUS
164
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
The PDF contains embedded JavaScript and a large number of external links, many pointing to compromised WordPress sites. These links likely serve as a link farm to redirect users to malicious or phishing content. The ClamAV detection and ML classifier strongly indicate malicious intent, consistent with a phishing or malware distribution campaign.
Machine Learning
- Nyx PDF Classifier malicious score 0.9981
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 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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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://smidgel.ru/uplcv?utm_term=2+player+racing+games+unblocked PDF link annotation
- https://vdbergelectro.nl/wp-content/plugins/super-forms/uploads/php/files/63b0e522ea487abdb12c7585808584c8/69878777244.pdfIn PDF document text
- http://bergfin.se/wp-content/plugins/formcraft/file-upload/server/content/files/16146581ba6546---11021071075.pdfIn PDF document text
- http://wakesup.org/userfiles/file/juloxapubizowase.pdfIn PDF document text
- http://icoenergia.com/userfiles/files/67108945022.pdfIn PDF document text
- http://conwaychristian.org/wp-content/plugins/formcraft/file-upload/server/content/files/16140edcd5ae0c---rozakojaragur.pdfIn PDF document text
- http://shsuorui.com/uploadfiles/fckeditor/20210910/file/16312999643759.pdfIn PDF document text
- https://tepihtrava.rs/files/gemimole.pdfIn PDF document text
- https://luxurybaths.marblobaths.ph/app/webroot/img/files/mevideb.pdfIn PDF document text
- https://glosunspa.com/wp-content/plugins/formcraft/file-upload/server/content/files/161451d7829310---jiladudikega.pdfIn PDF document text
- https://landtop.com/filespath/files/20210902090820.pdfIn PDF document text
- http://escuelasfutbol8.com/docs/files/63574565771.pdfIn PDF document text
- https://atlas-consulting.ro/fckeditor/fisiere/file/40133716979.pdfIn PDF document text
- http://ukwoodrecycling.com/userfiles/files/1616855909.pdfIn PDF document text
- https://cvsc.co/userfiles/file/runijop.pdfIn PDF document text
- https://amthanhanhsangchinhhang.vn/upload/files/4758416993.pdfIn PDF document text
- http://capriololaw.com/customer/3/d/9/3d947ad6ce2568d98b832ccf5548371bFile/mewekof.pdfIn PDF document text
- http://sten.kr/club/data/userfiles/file/20210904145037.pdfIn PDF document text
- https://b7b.reviewz.eu/app/webroot/files/userfiles/files/37176307676.pdfIn PDF document text
- http://unityproductions.com/upload/files/nejojomolowi.pdfIn PDF document text
- http://ideviceplus.be/app/webroot/files/userfiles/files/2299983456.pdfIn PDF document text
- http://cardealer-space.com/js/upload/files/kasepimexopinebivefejef.pdfIn PDF document text
- https://aristi-trap.com/upload/users/files/bajujeni.pdfIn PDF document text
- 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_off0000e126.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xE126 | 17868 bytes |
SHA-256: 6be4e51e04f08946d9f8fd7639bdf8d394bc75a41dd6eb90b76422a5a5816831 |
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font_01_sfnt_off00010f55.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x10F55 | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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font_02_sfnt_off0001276c.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x1276C | 11228 bytes |
SHA-256: 43eff1d75479e0265709ec180a13b9b8dd8adf95f1ea61ca91fba0fc928f1cd6 |
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