MALICIOUS
164
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
The PDF contains embedded JavaScript and numerous external URIs, many of which point to compromised CMS uploads or disposable hosting, indicating a phishing or malware distribution attempt. The ML classifier and ClamAV detection strongly suggest malicious intent. The embedded JavaScript likely facilitates the redirection to these malicious URLs.
Machine Learning
- Nyx PDF Classifier malicious score 0.9953
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://crewmak.ru/uplcv?utm_term=visualizing+nutrition+canadian+edition+pdf PDF link annotation
- https://cmr.ribi.bg/files/4983927083.pdfIn PDF document text
- https://eventaipei.com/upload/files/sigevasumidoxudi.pdfIn PDF document text
- http://mwflower.com/upimagesfile///84964475335.pdfIn PDF document text
- http://bubb.cn/up_file/file/77583707697.pdfIn PDF document text
- https://laneopx.com/wp-content/plugins/formcraft/file-upload/server/content/files/16141f33f02f33---jafakudukaravorulaziral.pdfIn PDF document text
- http://velisend.ru/photos/file/33435359217.pdfIn PDF document text
- http://sdds.be/userfiles/file/31440915067.pdfIn PDF document text
- https://wcdt.co.th/wp-content/plugins/super-forms/uploads/php/files/fa9qeddhgt8qol66fnavrpd1i1/24320187734.pdfIn PDF document text
- https://art-lamps-rali.eu/files/file/guluwetuvuzepanajal.pdfIn PDF document text
- http://shouquan.scarclinic-cn.com/uploadfile/file///bodifipuwuvolid.pdfIn PDF document text
- http://seatraderhk.com/userfiles/60785840667.pdfIn PDF document text
- http://blankheich.de/images/uploads/file/nelazurewaxo.pdfIn PDF document text
- https://terminarz.online/kosmetyczka/krakow/files/17537181137.pdfIn PDF document text
- http://verkoop-je-wagen.be/wp-content/plugins/formcraft/file-upload/server/content/files/16141fe073df5b---zotemininamoletolowoledu.pdfIn PDF document text
- http://karpatskiles.ru/store/file/44170785865.pdfIn PDF document text
- http://tanabuauto.com/js/upload/files/2963752554.pdfIn PDF document text
- https://planningpvedh.nl/ckfinder/userfiles/files/49461531287.pdfIn PDF document text
- http://s8radziejowice-paszkow.pl/userfiles/file/sikosugulodofomiraxilotu.pdfIn PDF document text
- http://vodova51-53.cz/files/9709769649.pdfIn PDF document text
- https://duvanco.be/docs/files/mosaketewuwogewiz.pdfIn PDF document text
- https://noursportevents.com/wheelmarine/userfiles/file/73189002897.pdfIn PDF document text
- http://refinerlink.com/userfiles/file/87822479582.pdfIn PDF document text
- http://rnralpha.cz/res/file/zigutoramimur.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_off0000bd5a.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xBD5A | 18616 bytes |
SHA-256: 039344ab0e6f04766da8ebafc4ea99d9452457016e004432570a5b6c68597158 |
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font_01_sfnt_off0000ed35.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xED35 | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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font_02_sfnt_off0001054c.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x1054C | 10924 bytes |
SHA-256: caed134ef7c26e16879f89ac3a2e15731f43a76a080f3ce802acf407ea2af296 |
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