MALICIOUS
156
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1203 Exploitation for Client Execution
The PDF was flagged by ML classifiers and ClamAV as malicious, specifically as a phishing trojan. It contains numerous embedded URLs, many of which point to compromised CMS upload storage or disposable hosting, forming a link farm. These links likely serve to redirect users to phishing sites or download further malicious content.
Machine Learning
- Nyx PDF Classifier malicious score 0.9973
Heuristics 6
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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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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://global-gypsum.com/wp-content/plugins/formcraft/file-upload/server/content/files/161453657a0574---37509630041.pdf
- https://cafemocion.com/userfiles/file/kuketunejoxoxujomufepag.pdf
- http://izhar-energy.com/userfiles/file/60294186249.pdf
- https://crcnueva.naturasoftware.com/uploads/images/files/13572542513.pdf
- http://keyday.ru/files/files/xesefosuripubewux.pdf
- http://dtjxbpzx.com/filespath/files/20210910182631.pdf
- http://xperion.hu/wp-content/plugins/super-forms/uploads/php/files/87ca479a6d42321f18efdd0220101beb/99370162313.pdf
- https://clap-bas.com/userfiles/file/57011275906.pdf
- http://ccswcd.com/userfiles/file/vupese.pdf
- https://mirrorlink.com/public/files/files/ruladopujezoju.pdf
- http://www.juniorcollege.cl/ckfinder/userfiles/files/84336549967.pdf
- http://beastyenergy.com/userfiles/file/fuxipanaxepibinatoja.pdf
- https://ntct-dz.com/ckfinder/userfiles/files/somuliriwelamirujeses.pdf
- http://davcpundri.com/css/file/joxudomomideruseti.pdf
- http://allegroescrow.com/wp-content/plugins/formcraft/file-upload/server/content/files/1614163bc7a146---3507085723.pdf
- http://candientu24h.vn/webroot/img/files/nurulofumirud.pdf
- http://gamebonda.com/ckupload/files/63792039893.pdf
- http://gorisum.net/fckeditor/upload_file/file/22967727051.pdf
- https://avflash.nl/upload/files/54569486678.pdf
- https://jyapa.com/jhuoyue/uploadfiles/purigifuseferi.pdf
- http://msslink.ru/userfiles/files/24972810159.pdf
- http://xn--80aafjbawrcdgsodbdciig4a5v.xn--p1ai/pict/file/wepasekemotunavinevebeg.pdf
- http://www.sandzthabapanel.co.za/wp-content/plugins/formcraft/file-upload/server/content/files/1612ed52058a54---84080759773.pdf
- http://sdhmladavozice.cz/userfiles/file/54210874205.pdf
- https://feedproxy.google.com/~r/skout/mBVl/~3/S30rS-6n6vg/uplcv?utm_term=long+tail+keywords+seo
- 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_off0000f7ab.bin3d72ee66d95c72561d8d288bc2e7efb8e6d1a69202297b9025c5b9941ce83c52 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xF7AB | 18908 bytes |
font_01_sfnt_off000128a8.bina667512be54c39a1814f58a94e222f770078753f40a11da3cf403af058055b93 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x128A8 | 10672 bytes |
font_02_sfnt_off00014120.bin9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x14120 | 16792 bytes |
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