MALICIOUS
156
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
The PDF contains numerous external links, many pointing to compromised WordPress sites, suggesting a link farm or redirection mechanism. The ML classifier and ClamAV detection strongly indicate malicious intent. While no scripts were explicitly extracted, the PDF structure and embedded URLs point towards a phishing or malware distribution lure, likely initiated via spearphishing.
Machine Learning
- Nyx PDF Classifier malicious score 0.9953
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 https://inwebjor.ru/uplcv?utm_term=but+if+you+wanna+cry+cry+on+my+shoulder
- https://www.officinadelgustoroma.com/wp-content/plugins/super-forms/uploads/php/files/5863ab91582115237bbb1837c3d68b52/37086336318.pdf
- http://www.191seo.com/wp-content/plugins/formcraft/file-upload/server/content/files/1609c106627e47---8481861598.pdf
- http://www.zopfitravel.com/wp-content/plugins/formcraft/file-upload/server/content/files/160d1d53857fb4---45819044471.pdf
- https://nobleanimalsanctuary.org/wp-content/plugins/super-forms/uploads/php/files/tmp/17617214718.pdf
- https://autoandtruckrepair.net/nbloom/fckuploads/file/33137655089.pdf
- http://fabrykakonwersji.pl/wp-content/plugins/super-forms/uploads/php/files/1531bc7146a0abbfd03035468fc8ce08/91970118033.pdf
- http://broadgatecapital.com/userfiles/file/rixirefo.pdf
- https://studiovizia.com/webroot/img/content/files/24758652584.pdf
- https://staffxrecruitment.com/wp-content/plugins/super-forms/uploads/php/files/3447a663521bf2dfb1fab6f87fb4f2cd/natepuzejumazajex.pdf
- http://tamker.hu/userfiles/file/nexazodojeta.pdf
- http://www.publicitymailing.ie/wp-content/plugins/formcraft/file-upload/server/content/files/16077cc322457e---gatuzabapurirebakaked.pdf
- http://op-gold.com/ck_image//files/62801310019.pdf
- http://gennarimaq.com.br/wp-content/plugins/formcraft/file-upload/server/content/files/160a0c54fba816---74181647965.pdf
- http://kingspec.su/wp-content/plugins/super-forms/uploads/php/files/a86u96ev9p6ntk6pspom74e3vm/87393432327.pdf
- http://stacjaregeneracja.pl/userfiles/file/46825271288.pdf
- https://www.colegiodesafio.net/home/wp-content/plugins/formcraft/file-upload/server/content/files/16072b30ad83af---85568847522.pdf
- https://amenagementsoleil.com/wp-content/plugins/formcraft/file-upload/server/content/files/160dbe312d31d1---putulufunagebipeluxawej.pdf
- http://www.driftime.ee/wp-content/plugins/formcraft/file-upload/server/content/files/160834c6eeddb3---92367312243.pdf
- http://vipavtoufa.ru/wp-content/plugins/super-forms/uploads/php/files/68ef1a604e7dc5132f2e03cdc329bbf7/28432059670.pdf
- http://thehawthornnyc.com/wp-content/plugins/formcraft/file-upload/server/content/files/1609611f8d9722---32841853655.pdf
- http://evopizza.lt/ckfinder/userfiles/files/purezagaxon.pdf
- https://www.coconutlodge.com/wp-content/plugins/formcraft/file-upload/server/content/files/160a3a56d78413---daxolijixe.pdf
- http://xn--knstlerische-biografie-arbeit-lbd.ch/userfiles/files/bawuzibetukifexutalo.pdf
- http://lovewhereyoulv.wpengine.com/wp-content/plugins/super-forms/uploads/php/files/ce8cfa772a52547ca2d4b158c68a47c9/34374099529.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_off0000cdce.bin6cfb025f2caaff48c7aaa802a9426e37eb7f754972345d2f7c2ee85f81d26734 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xCDCE | 16868 bytes |
font_01_sfnt_off0000f9d4.bin824d18f5ba5110a0c9a7ef7c4040058531abb7d363664c8bed39262b023b02ae |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xF9D4 | 11096 bytes |
font_02_sfnt_off000113a1.bin9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x113A1 | 16792 bytes |
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