MALICIOUS
172
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
The PDF contains embedded JavaScript and a link farm pointing to multiple external URLs, some hosted on compromised WordPress sites. The ML classifier and ClamAV detection strongly indicate malicious intent, likely to deliver a phishing page or download a second-stage payload. The presence of urgency lures further supports a phishing or social engineering attack vector.
Machine Learning
- Nyx PDF Classifier malicious score 0.9700
Heuristics 8
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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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Urgency / deadline lure low SE_URGENCY_LUREDocument contains urgency or deadline language ('account will be terminated', 'action required within 24 hours', etc.) — useful context, but low-signal without other findings
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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://ancoraeducacion.com/images/14026469768.pdf
- https://agilitynd.com/wp-content/plugins/super-forms/uploads/php/files/0cc1eddc36b7461436e31df596436bf6/11403424641.pdf
- https://thesmithgrouphouston.com/wp-content/plugins/super-forms/uploads/php/files/f1b5d7876cff817d9abab794c746f85a/wefotafevivewidivimoxanat.pdf
- http://rayhovietnam.vn/upload/files/kebud.pdf
- https://mbzl-pro.xyz/web/img/podborky/files/33534481920.pdf
- https://www.lavishlook.se/wp-content/plugins/super-forms/uploads/php/files/c3970f1a180c69ff4e90dd8406b3fd1f/besesarafipag.pdf
- http://subventionsbetrug.de/wp-content/plugins/super-forms/uploads/php/files/mv3qf9lcos9ed017r7p4o3kdl7/parejafagipet.pdf
- https://artbynela.com/uploads/file/zipusifipiradavugejax.pdf
- http://bridgestone-ice-cruiser-7000.ru/ckfinder/userfiles/files/71410408522.pdf
- http://comlark.ru/userfiles/files/40360680941.pdf
- https://veaodaibrahma.com/uploads/image/files/zabajeratuka.pdf
- https://abandassociates.com/ckfinder/userfiles/files/53246311196.pdf
- http://bochosushi.com/wp-content/plugins/formcraft/file-upload/server/content/files/160702cbea2857---sewivolafefu.pdf
- http://canevinclassof70.com/clients/6/6b/6b8b8ee0d314e59372afbcb75100d768/File/32701679156.pdf
- https://www.horisunmauritius.com/wp-content/plugins/super-forms/uploads/php/files/0b37927726fd36fce351c73e9d397bf5/17591191481.pdf
- http://gold-carsales.com/js/upload/files/51651741108.pdf
- http://katyababash.com/images/uploads/file/27543203717.pdf
- https://hotelindigha.com/FCKeditor/file/87708495315.pdf
- https://lisacutler.com/wp-content/plugins/formcraft/file-upload/server/content/files/1609d3498c0133---jolutitowizux.pdf
- http://www.afamaresme.org/wp-content/plugins/formcraft/file-upload/server/content/files/16073621c06d31---81200589315.pdf
- https://unibel.pl/pliki/upload/file/memoliwumovekimofegi.pdf
- http://zamokugrofa.sk/admin/fckeditor/file/81709412776.pdf
- https://feedproxy.google.com/~r/Uplcv/~3/Om9ozkHLxGw/uplcv?utm_term=taoist+tai+chi+108+moves+dvd
- 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_off0001fb3e.bin9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x1FB3E | 16792 bytes |
font_01_sfnt_off00021355.bina4065444d502961d725233dd7d741630ea879a033cad900b64236a7222e0ab21 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x21355 | 10796 bytes |
font_02_sfnt_off00022c5a.binc4598fb9cc518682d5f5960d09323dfffc1a3b42f57cea95cfdf01319696f426 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x22C5A | 19636 bytes |
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