MALICIOUS
176
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
This PDF file was flagged by ML classifiers and ClamAV as malicious, exhibiting characteristics of a phishing or tech-support scam. The document body is heavily obfuscated, but heuristics indicate it functions as a link farm pointing to compromised WordPress upload storage, likely to host malicious content. The SE_CALLBACK_LURE heuristic specifically suggests the document's intent is to trick users into calling a phone number for fraudulent purposes.
Machine Learning
- Nyx PDF Classifier malicious score 0.9935
Heuristics 7
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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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Callback phishing phone lure medium SE_CALLBACK_LUREDocument asks the user to call a phone number in billing, refund, subscription, fraud, or security context — consistent with callback phishing or tech-support scam patterns. Suppressed for legitimate-issuer (IRS/gov/official-form) documents that carry no urgency or charge/dispute escalation.
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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://ventana-sur.com/wp-content/plugins/formcraft/file-upload/server/content/files/160c6fc9832ef6.pdf
- https://thriveelearning.com/wp-content/plugins/super-forms/uploads/php/files/f1f6308ed04472769e1d687a3f91d340/rudagimatujeb.pdf
- https://medtek.vn/storage/file/52464830233.pdf
- http://churchliferesources.org/wp-content/plugins/formcraft/file-upload/server/content/files/160ad67c4ecf96---80590760152.pdf
- http://monkey-do.net/userfiles/file/zigetilupujibezux.pdf
- http://gapp.fr/medias/files/juvezafema.pdf
- http://www.cheapmotorcycleinsurancepa.com/wp-content/plugins/super-forms/uploads/php/files/2k9s0br8dmqo12e3fb184gqpo1/daweluvav.pdf
- http://geostudio.eu/userfiles/files/57961279244.pdf
- http://fullcolorspandoeken.nl/userfiles/file/76267470896.pdf
- http://aeskulap24h.de/wp-content/plugins/formcraft/file-upload/server/content/files/160c2cb4d0a972---96529621714.pdf
- http://gemculture.com/userfiles/file/79486452108.pdf
- https://www.eziblank.com/wp-content/plugins/super-forms/uploads/php/files/5djgj7jaubnp9t6s34js81erg3/sipekubufuxarixunudexa.pdf
- https://alphaveneers.co.uk/wp-content/plugins/super-forms/uploads/php/files/4c1cc52ffc54e441f8c2812341b79987/najejivum.pdf
- http://jinistudy.com/_UploadFile/Images/file/wejanelikoxaf.pdf
- https://imapcb.org/wp-content/plugins/super-forms/uploads/php/files/esntlketip4nvvprflecvgcpb5/62425847717.pdf
- https://yziact.fr/wp-content/plugins/super-forms/uploads/php/files/7gvpnecanhnfqja5osvegvb6vf/xigifikefigemowiwiv.pdf
- http://xn--9p4b29dncp2cc6y.net/upload/fckeditor/file/25989177656.pdf
- https://www.medicalart.com.tr/wp-content/plugins/formcraft/file-upload/server/content/files/160a29dd0bfa3d---99773715618.pdf
- http://www.fattyweng.com.sg/wp-content/plugins/formcraft/file-upload/server/content/files/1608b8bd6155a5---56669408264.pdf
- https://abe-rdc.com/userfiles/file/piwalom.pdf
- http://chrisnoblelaw.com/customer/3/d/9/3d947ad6ce2568d98b832ccf5548371bFile/bulanipexukajotelexa.pdf
- https://sipare.com.ar/wp-content/plugins/super-forms/uploads/php/files/tcup6k25rs6rq3c6co4ll8uifk/25545094538.pdf
- https://willmarareachamber.com/ckfinder/userfiles/files/pujodixusokusib.pdf
- https://cmsschoolkg.org/userfiles/file/56215571608.pdf
- https://feedproxy.google.com/~r/Uplcv/~3/DOqCt-cVA4I/uplcv?utm_term=common+courtesy+meaning
- 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_off00010d79.bin0cee6ea9be8a0de6eada6f52bb9e18dfbd402a0f6894fe75826279eb9c1aa587 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x10D79 | 17672 bytes |
font_01_sfnt_off00013bf2.bin9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x13BF2 | 16792 bytes |
font_02_sfnt_off00015409.bin8eaf01309549f442e1826354a40d74a2cad748f219726d601ac01d24ec59709d |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x15409 | 10772 bytes |
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