MALICIOUS
156
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
This PDF was flagged by ML classifiers and ClamAV as malicious, indicating a phishing or malware distribution attempt. It contains numerous links to external websites, many hosted on compromised CMS platforms or disposable domains, suggesting a link farm designed to redirect users to malicious content. The presence of embedded URLs and the overall structure strongly suggest an attempt to exploit users through deceptive links.
Machine Learning
- Nyx PDF Classifier malicious score 0.9981
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 http://ecovn.vn/uploads/news_file/75448730036.pdf
- https://www.dyna-tech.nl/wp-content/plugins/formcraft/file-upload/server/content/files/16088da46082f9---wukiwiz.pdf
- http://crisismobile.com/ckfinder/userfiles/files/jegetogat.pdf
- http://www.iycadana.org/wp-content/plugins/super-forms/uploads/php/files/gvntj8ktv1oatuoohgfpiik5g3/70459523628.pdf
- http://www.monts.sk/upload_images/file/bigitopevaxenimujijogu.pdf
- https://loskutova.site/wp-content/plugins/super-forms/uploads/php/files/9c0206d82e3b01e72dcd935c57c45716/48004934282.pdf
- https://yuktiedu.com/wp-content/plugins/super-forms/uploads/php/files/541530135d4b2c97478e8627dd508e78/jisafejovuvujutelagi.pdf
- https://sportcity.bg/webroot/img/content/files/nukavapuzal.pdf
- http://master-sign.ru/ckfinder/userfiles/files/zoketozopugenemojig.pdf
- http://www.bridalchapel.com/wp-content/plugins/formcraft/file-upload/server/content/files/160baa45025186---42169134867.pdf
- http://horizonpestservices.com/userfile/nowitigapabafosotapi.pdf
- https://noks.cz/wp-content/plugins/formcraft/file-upload/server/content/files/1607853d9bc9f7---86063401006.pdf
- http://www.catalogodecineargentino.com/wp-content/plugins/formcraft/file-upload/server/content/files/160cb179736b4f---jimiweduririzo.pdf
- http://albertopizzetti.it/userfiles/files/gosajokodilo.pdf
- http://dienlanhtruongson.com/upload/files/tufaxikuronebifab.pdf
- https://srilangkapools.com/contents//files/92200341686.pdf
- http://asiancfea.org/userfiles/file/97335696975.pdf
- https://ecableapp.com/FCKeditor/FCKimgUpload/file/bufijolokutibifunewofi.pdf
- http://davidhammerstein.org/ckfinder/userfiles/files/14085615651.pdf
- http://cn-polylysine.com/d/files/kupafajixeratuwes.pdf
- https://intrastorg.com/userfiles/file/41066155360.pdf
- http://hsiwww.com/image/files/20210705_145657.pdf
- https://feedproxy.google.com/~r/1eyvgo/aqOO/~3/BvfzZFkJO3s/uplcv?utm_term=acalasia+diagnostico+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_off0000d829.bin71f3c800a8019ef9e2f915a878510c2181ad5ce745e20d73a9911aa02f4d53a8 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xD829 | 10544 bytes |
font_01_sfnt_off0000f01d.bin9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xF01D | 16792 bytes |
font_02_sfnt_off0001082f.bine4f86ea4446919de2bc046d9bd2d6b17ab30e75e9e16e41570075cb004ce367b |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x1082F | 18448 bytes |
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