MALICIOUS
156
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1204.002 Malicious Link
This PDF file was flagged by multiple heuristics as a link farm hosted on compromised WordPress sites. The ML classifier and ClamAV also identified it as malicious, specifically a phishing trojan. The document's primary function appears to be directing users to potentially malicious content hosted on various domains, including the identified compromised WordPress upload storage.
Machine Learning
- Nyx PDF Classifier malicious score 0.9953
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://caribsplash.org/wp-content/plugins/formcraft/file-upload/server/content/files/1614add8612cff---40098567146.pdf
- http://www.gunyagder.org.tr/wp-content/plugins/super-forms/uploads/php/files/g8nu1tsmtmf29e2hk7h8v6qld4/62442789698.pdf
- http://serdceprirody.ru/userfiles/file/desididu.pdf
- http://franklcalabreseattorney.com/customer/3/d/9/3d947ad6ce2568d98b832ccf5548371bFile/20978050579.pdf
- https://www.projectorrentals.com/wp-content/plugins/formcraft/file-upload/server/content/files/16151f93468a7a---89674297462.pdf
- http://flyingwedge.com/uploads/assets/file/bosudo.pdf
- http://f-kcc.jp/user_data/userfiles/files/75097842709.pdf
- http://sadiqandsons.com/userfiles/files/lakulep.pdf
- http://salondebellezaanamariaromero.es/ckfinder/userfiles/files/98015052519.pdf
- http://hiroi-es.info/yamituki-n/uploads/files/nudoxumim.pdf
- https://kantankacreative.com/wp-content/plugins/super-forms/uploads/php/files/5244799905ac8b1d00b4c901d2312045/52539875617.pdf
- http://www.tlo.ntou.edu.tw/ckfinder/userfiles/files/77767829861.pdf
- http://aelma.com/sites/default/userfiles/file/84501307490.pdf
- http://vrieshorst.nl/images/uploads/file/rameliwunujokogutalu.pdf
- http://xahscw.com/userfiles/file/xagilopusi.pdf
- http://zadonskiy.ru/wp-content/plugins/formcraft/file-upload/server/content/files/161629a64b79a8---7214439389.pdf
- https://alibrahimtravel.com/mycms/uploadedimages/editorUploadedImages/file/nasugixa.pdf
- http://alpinist.store/sribati/editor/uploadfiles/koreden.pdf
- https://swaarm.de/app/webroot/upload/files/rinusimatovokanexoga.pdf
- https://grouptm2.com/contents/files/vizakisenemix.pdf
- http://cdn.eagle.mn/uploads/userfiles/files/45070237259.pdf
- https://haysalon.com/public_html/userfiles/file/76830830313.pdf
- http://www.ebsjosepirosamaria.com/wp-content/plugins/formcraft/file-upload/server/content/files/16155b4437b413---gutamejapagave.pdf
- https://feedproxy.google.com/~r/1eyvgo/aqOO/~3/FevRqgeaUVY/uplcv?utm_term=caring+for+carers
- 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_off0000bff8.binaf7aead4f1e5fe3c5353f4ec47fddb56bb734a863246a5ae88eb05ac160387a3 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xBFF8 | 17164 bytes |
font_01_sfnt_off0000ebfe.bin9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xEBFE | 16792 bytes |
font_02_sfnt_off00010415.bin9cc9213c67f1da34cacd71be61c394b4985cdbb55d82becd395cded02e174f57 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x10415 | 10396 bytes |
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