MALICIOUS
164
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
The PDF contains an embedded JavaScript stream and a significant number of external URIs, many of which point to compromised WordPress sites acting as a link farm. This suggests the document's primary purpose is to redirect users through a chain of links, likely leading to a phishing page or a further malware download. The ML classifier and ClamAV detection strongly indicate malicious intent.
Machine Learning
- Nyx PDF Classifier malicious score 0.9829
Heuristics 7
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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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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://www.grandiosa.is/wp-content/plugins/super-forms/uploads/php/files/g9mjagn6kbj7evv7pfigijp106/boboju.pdf In PDF document text
- http://maekuangudomthara.com/ckfinder/userfiles/files/94550531968.pdfIn PDF document text
- https://lorenzonimmigrationlaw.com/wp-content/plugins/formcraft/file-upload/server/content/files/1609466d09834a---gowosejel.pdfIn PDF document text
- https://puertoestereo.com/wp-content/plugins/super-forms/uploads/php/files/q7emrrk90l8su4dq07s47lh87u/52015213768.pdfIn PDF document text
- https://www.djluk.co.uk/wp-content/plugins/super-forms/uploads/php/files/c1vhd5rvhtoo009f2jrugolnd7/29290274211.pdfIn PDF document text
- https://advicezone.org.uk/wp-content/plugins/super-forms/uploads/php/files/o3cebu3j3dmlm6gdgmqlnm20lv/rudivamuviravukol.pdfIn PDF document text
- http://www.lebedosapartotel.com/data/yukle/files/31100474894.pdfIn PDF document text
- https://hcs1000.org/wp-content/plugins/super-forms/uploads/php/files/f66f6813dc3547ad224fef9b1dbb7593/zemukoji.pdfIn PDF document text
- http://www.scsi.coop/wp-content/plugins/super-forms/uploads/php/files/b4aa37fd6949a2f6033d455eb2a3ccc4/zufinej.pdfIn PDF document text
- http://bugskin.org/userfiles/file/vagilamodaridojudaf.pdfIn PDF document text
- https://weeb.nu/userfiles/file/10867683572.pdfIn PDF document text
- https://isleo.com/i_photos/file/63061098040.pdfIn PDF document text
- http://kazenergy.kz/wp-content/plugins/formcraft/file-upload/server/content/files/160f0f971784aa---54635188909.pdfIn PDF document text
- http://kowel.com/ckfinder/userfiles/files/1622436769.pdfIn PDF document text
- https://accesoriosalmayor.com/images/userfiles/file/duwawafasalamikusivuxo.pdfIn PDF document text
- http://hsi-international.com/ckfinder/userfiles/files/16452811508.pdfIn PDF document text
- http://lorichphoto.com/pictures/file/fibide.pdfIn PDF document text
- http://www.hollyskauaicondo.com/wp-content/plugins/formcraft/file-upload/server/content/files/160ac39aa2686d---tasejijazatolawazoferape.pdfIn PDF document text
- https://memoservicesrl.it/file/rigiruro.pdfIn PDF document text
- http://zamokugrofa.sk/admin/fckeditor/file/pegetiwo.pdfIn PDF document text
- https://corumosmanlimakina.com/js/ckfinder/userfiles/files/fagisufamekibunurunenigo.pdfIn PDF document text
- https://www.ibyservice.com/wp-content/plugins/super-forms/uploads/php/files/f0c74f4dcae4cf5a914bd93bb913b407/38682807476.pdfIn PDF document text
- https://webhostmurah.com/wp-content/plugins/formcraft/file-upload/server/content/files/160756908c6da2---97546493353.pdfIn PDF document text
- http://la-roofers.co.uk/wp-content/plugins/formcraft/file-upload/server/content/files/160bc08987fd99---62798844887.pdfIn PDF document text
- https://bluebeakbranding.com/wp-content/plugins/super-forms/uploads/php/files/c4560faf737d79ed3323c3145658033f/jepedajega.pdfIn PDF document text
- http://fujavietnam.com/images/Download/wigekomewepawatovazave.pdfIn PDF document text
- https://feedproxy.google.com/~r/Uplcv/~3/FevRqgeaUVY/uplcv?utm_term=consonant+digraphs+worksheets+for+4th+gradePDF link annotation
- http://www.w3.org/1999/02/22-rdf-syntax-ns#In PDF document text
- http://purl.org/dc/elements/1.1/In PDF document text
- http://ns.adobe.com/pdf/1.3/In PDF document text
- http://ns.adobe.com/xap/1.0/In PDF document text
- http://ns.adobe.com/xap/1.0/mm/In PDF document text
- http://ns.adobe.com/xap/1.0/rights/In PDF document text
- http://dejavu.sourceforge.netIn PDF document text
- http://dejavu.sourceforge.net/wiki/index.php/LicenseIn PDF document text
Extracted artifacts 3
Files carved from inside the sample during analysis.
| Filename | Kind | Source | Size |
|---|---|---|---|
font_00_sfnt_off0000c717.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xC717 | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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font_01_sfnt_off0000df29.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xDF29 | 18292 bytes |
SHA-256: 2677f10f1ffd4e6ffc097672795699771e9b960f6326617e1d958c21c6625fc6 |
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font_02_sfnt_off00010e7e.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x10E7E | 11016 bytes |
SHA-256: e5df5fc087107503f5a6f9402f59aa41c0b57c276c8ce2ae6a6f176460081a08 |
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