MALICIOUS
156
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1059.007 JavaScript
The PDF document contains numerous external links, many of which point to compromised websites or disposable domains, indicating a phishing or malware distribution attempt. The ML classifier and ClamAV detection strongly suggest malicious intent. While no scripts were explicitly extracted, the PDF structure and embedded URLs are indicative of a malicious link farm designed to lure users to malicious content.
Machine Learning
- Nyx PDF Classifier malicious score 0.9995
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://crysiq.ru/uplcv?utm_term=lengua+6+primaria+anaya+libro+digital
- https://hgindustrial.eu/userfiles/files/81233785158.pdf
- https://kalatranslation.co.uk/wp-content/plugins/super-forms/uploads/php/files/mc31j5jp2am0vs2bdhsnrnq44q/bixabikokuside.pdf
- https://sharjahcements.com/images/bulk_images/files/mopom.pdf
- http://www.vnos.vn/app/webroot/uploads/files/bikilazup.pdf
- http://kaupa.cz/userfiles/file/46356892251.pdf
- http://stopasbestos.ca/wp-content/plugins/formcraft/file-upload/server/content/files/16080c9eb96207---86555422070.pdf
- http://betaempire.com/uploads/userfiles/file/file/72076611868.pdf
- http://www.eflox.net/wp-content/plugins/formcraft/file-upload/server/content/files/160a25c5673595---renegopidiru.pdf
- https://cruiseship.cruises/wp-content/plugins/super-forms/uploads/php/files/g98566johq2ks8toct885snfh3/dilexin.pdf
- https://toptenstudy.com/upload/files/BodyFile__60BAEDF794B68.pdf
- http://www.studiolegalefusimorelli.com/wp-content/plugins/formcraft/file-upload/server/content/files/160a1622f91977---vezitexejipodezinamafoxi.pdf
- https://interesttour.com/wp-content/plugins/super-forms/uploads/php/files/1b898b1075b7d1abe1c4b5e2f0019d49/xepirodekuralerozakin.pdf
- https://htddienstverlening.nl/userfiles/file/rasuv.pdf
- https://www.18fire.com/wp-content/plugins/super-forms/uploads/php/files/7620e5ee4e9ac5ecaf8e75722418b6f2/8198973794.pdf
- http://ok-poland.com/userfiles/file/41135052347.pdf
- http://xn--80aafkqcanfpgnhbng3b5i9a.xn--p1ai/pict/file/kedexesulijel.pdf
- https://alakharia.com/public_html/userfiles/file/juxemo.pdf
- http://adamlegal.com/userfiles/file/19202193129.pdf
- http://furkansigorta.com.tr/wp-content/plugins/formcraft/file-upload/server/content/files/1607e4ca93638a---fibofam.pdf
- https://solener.info/ckfinder/userfiles/files/60196135964.pdf
- https://glycocalyx.nl/userfiles/image/file/lazapipikotibeniruruj.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_off0000c3e5.bin269ca60fa0a1169093dc7b47e4445e598240e38a5c1eff0ac3e73f043da63f9e |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xC3E5 | 11044 bytes |
font_01_sfnt_off0000dd2e.bin9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xDD2E | 16792 bytes |
font_02_sfnt_off0000f540.bin27bc61db4bf880206cedaa4f37e2496bf849fc893862734b186bfa506197ca05 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xF540 | 18204 bytes |
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