MALICIOUS
156
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1203 Exploitation for Client Execution
The PDF contains numerous embedded URLs, many of which point to compromised websites or disposable domains, suggesting a phishing or malware distribution scheme. The ML classifier and ClamAV detection strongly indicate malicious intent. The document's structure as a link farm, combined with the nature of the linked sites, points towards an attempt to lure users to malicious content.
Machine Learning
- Nyx PDF Classifier malicious score 0.9975
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://catamma.ru/uplcv?utm_term=how+to+find+out+who+searched+you+on+instagram PDF link annotation
- http://naim.naparts.com/images/fck/file/xefaziripapedorufagup.pdfIn PDF document text
- http://www.hollyskauaicondo.com/wp-content/plugins/formcraft/file-upload/server/content/files/16141e12b7c794---tixivanune.pdfIn PDF document text
- https://autoandtruckrepair.net/nbloom/fckuploads/file/xojex.pdfIn PDF document text
- http://xn--80adpfaaeictf0c6c7i.xn--p1ai/public/file/98210268117.pdfIn PDF document text
- http://ylpcl.com/ckfinder/userfiles/files/pomoxurerajagubifu.pdfIn PDF document text
- https://www.ferienhof-schneider.de/wp-content/plugins/formcraft/file-upload/server/content/files/1613d98189288f---3102041065.pdfIn PDF document text
- https://hilanguage-com-tw.triangle-design.com/files/peluforexufuxikatisogekax.pdfIn PDF document text
- http://driver-jazda.pl/upload/file/dilowapidesogeluluz.pdfIn PDF document text
- http://sieuthicayxanh.vn/webroot/img/files/86098892312.pdfIn PDF document text
- https://creteservices.com/FCKeditor/userimages/file/99388758858.pdfIn PDF document text
- http://sgo-bage.com/public/files/files/19198296119.pdfIn PDF document text
- https://marblo.ph/app/webroot/img/files/wetopetilepesokefigubiko.pdfIn PDF document text
- http://jcbcharpentebois.com/ressource/site-image/files/vufeda.pdfIn PDF document text
- http://med-os.com/user_upload/file/32500406695.pdfIn PDF document text
- http://1day2night.com/UserFiles/file/79072654551.pdfIn PDF document text
- https://traiteur-troyes-mariage-buffet-aube-10.blaisot-traiteur.fr/ckfinder/userfiles/files/puvonomakozagupafonos.pdfIn PDF document text
- https://mosoptagro.ru/wp-content/plugins/super-forms/uploads/php/files/9d90b7ac6ad41f2cf19b5d06c7024d67/xamimazedofojukadimiliza.pdfIn PDF document text
- https://stotex.rs/files/40291858247.pdfIn PDF document text
- http://fukaofoods.tw/uploads/files/202109190858082413.pdfIn PDF document text
- http://astmasme.com/userData/board/file/woruvezuke.pdfIn PDF document text
- http://pk.mo/userfiles/file/82858378112.pdfIn PDF document text
- http://daithanhnam.com/upload/files/27338269210.pdfIn PDF document text
- https://mattress-leader.com/media/vibope.pdfIn PDF document text
- http://saddabro.com/userfiles/file/91293690530.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_off0000d031.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xD031 | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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font_01_sfnt_off0000e848.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xE848 | 11168 bytes |
SHA-256: 69ca515466c7bbc22cb10b509479d20e2490584fd655c641370947fb23bd5909 |
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font_02_sfnt_off0001020f.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x1020F | 17460 bytes |
SHA-256: 3e4ab9583e0eefae322163e5d1d3344c8362d42f399b0774a6c2b7ba973596b3 |
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