MALICIOUS
156
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
The ML classifier and ClamAV detection strongly indicate maliciousness. The PDF contains numerous links to compromised WordPress sites and disposable hosting, suggesting a link farm designed to redirect users to malicious content. Although no scripts were explicitly extracted, the PDF structure and heuristic firings point towards a phishing or malware distribution attempt.
Machine Learning
- Nyx PDF Classifier malicious score 0.9991
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 http://www.birapart.com/wp-content/plugins/formcraft/file-upload/server/content/files/1607efa6e9639b---69148879460.pdf
- http://hugslock.com/app/webroot/img/files/9878097572.pdf
- http://brodart01.com/wp-content/plugins/super-forms/uploads/php/files/5m9f4dvq4tqi3ns0sido8tttaj/xisetom.pdf
- https://cedarcreeksauce.com/wp-content/plugins/super-forms/uploads/php/files/b7eaf10e7cb55e4cbd6ee347970db41d/kofesa.pdf
- http://adamlegal.com/userfiles/file/jasoreja.pdf
- https://tranduongauto.com/app/webroot/files/images/pages/files/87176994357.pdf
- https://enville.com/wp-content/plugins/formcraft/file-upload/server/content/files/160bfd1cb16447---58988265511.pdf
- http://kadh.kr/bobod/upload/file/nubaxoworufitojisasaro.pdf
- https://yourtuscanyguide.com/wp-content/plugins/super-forms/uploads/php/files/8cifpmgcubjlknn5m3besj7881/13966172706.pdf
- https://www.traveltimevipp.com/wp-content/plugins/super-forms/uploads/php/files/7bbec7a60c36a90622b2b5f66afc72d3/nipediviwinaxelarexumuj.pdf
- http://aliceinformaticasrl.com/user/pages/5124581366.pdf
- http://www.asejnrtigers.co.uk/wp-content/plugins/formcraft/file-upload/server/content/files/160c3fff5230c3---durusovupolisigul.pdf
- https://spherule.org/wp-content/plugins/super-forms/uploads/php/files/ae1e6f6ce2a4e7e6c8e805ad0fba5676/1117838203.pdf
- https://zweiund40.com/wp-content/plugins/super-forms/uploads/php/files/v71r9957kdded6primk6ui0pvg/80467506354.pdf
- https://www.saenger-ohg.de/wp-content/plugins/formcraft/file-upload/server/content/files/160a1e0501a306---17519988262.pdf
- https://srp-galabau-rostock.de/wp-content/plugins/super-forms/uploads/php/files/4faj16cqg8884fh41p2p9svflc/76934252126.pdf
- http://gentlemensquartersbarbershop.com/wp-content/plugins/super-forms/uploads/php/files/c35117094e652b4aee9e1f13f2da0a9c/mewatavawudare.pdf
- http://matstravel.ru/userfiles/file/sapazuzesitazus.pdf
- http://dolphinegypt.net/userfiles/file/52807116603.pdf
- https://feedproxy.google.com/~r/skout/mBVl/~3/cv9VXjIrmdE/uplcv?utm_term=do+all+checks+need+to+be+endorsed
- 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_off0000fa2e.bin1ece96748938ae5c683b080c11cba03f09741539eb6113ddd0d1e33aef955c2b |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xFA2E | 16640 bytes |
font_01_sfnt_off00012586.bin9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x12586 | 16792 bytes |
font_02_sfnt_off00013d9d.bincaa3c12db7dd1e7588133cb77fd8f07f8cb6c3ce0c2113f6cf39262e7175482f |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x13D9D | 10608 bytes |
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