MALICIOUS
156
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1204.002 Malicious Link
The PDF contains a link farm with numerous URLs pointing to compromised CMS uploads and disposable domains, as indicated by the 'PDF_COMPROMISED_CMS_UPLOAD_LINK_FARM' and 'PDF_SEO_DISPOSABLE_LINK_FARM' heuristics. The ML classifier and ClamAV detection strongly suggest malicious intent, likely for phishing or distributing further malware. No scripts were extracted, but the structure and URL distribution are characteristic of a malicious link distribution campaign.
Machine Learning
- Nyx PDF Classifier malicious score 0.9950
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://asupuro.com/user_data/image//file/voxivefiwilukigajuxifito.pdf In PDF document text
- https://chupwo.com/editor_upload/file/domuv.pdfIn PDF document text
- https://kantankacreative.com/wp-content/plugins/super-forms/uploads/php/files/f1330dbf371eeb15b37c597ee27e6ff0/3019635296.pdfIn PDF document text
- https://frasertechno.com/wp-content/plugins/formcraft/file-upload/server/content/files/160a33eef2c37a---zafewarunikukebifa.pdfIn PDF document text
- http://discoveryenglish.org/wp-content/plugins/formcraft/file-upload/server/content/files/16077961cb9ef1---37191282713.pdfIn PDF document text
- http://christopherspubandgrille.com/userfiles/files/jakigamutusojivosaz.pdfIn PDF document text
- https://endoaccessories.com/wp-content/plugins/super-forms/uploads/php/files/mduv6e2fsn6birr4v02ebg7lts/bigijobaxodove.pdfIn PDF document text
- https://cruiseship.cruises/wp-content/plugins/super-forms/uploads/php/files/dtfo1eebovgfpl4jnghbtk9kps/76012943866.pdfIn PDF document text
- http://www.iycadana.org/wp-content/plugins/super-forms/uploads/php/files/rtb49o928ofquu40l4mqddib84/74844368513.pdfIn PDF document text
- http://www.guaitoli.eng.br/wp-content/plugins/formcraft/file-upload/server/content/files/160c7aa13d9a5b---68744026275.pdfIn PDF document text
- http://www.hangmandigital.com/files/file/dunefagewazavir.pdfIn PDF document text
- http://zbraneklapka.cz/ckfinder/userfiles/files/vagakixadepenitox.pdfIn PDF document text
- https://honda-otolongan.com/upload/files/76772745504.pdfIn PDF document text
- https://lightspec.com/wp-content/plugins/super-forms/uploads/php/files/bd27ab62c7c8e9c0e1e252906d8acd80/rubadoxog.pdfIn PDF document text
- https://dewalt-naradi.cz/media/upload/editor/file/tipexuvobogaf.pdfIn PDF document text
- http://cedresarquitectura.com/wp-content/plugins/formcraft/file-upload/server/content/files/160afdf0e588bb---71082383658.pdfIn PDF document text
- http://aimic.com/userfiles/file/xoxoj.pdfIn PDF document text
- http://ar-intl.net/wp-content/plugins/super-forms/uploads/php/files/t5fsnj882fqk7j5kq2d5qlf4u5/99542900778.pdfIn PDF document text
- http://caphegiabao.com/upload/fck/file/kenufugovomevugeg.pdfIn PDF document text
- http://debden.org/userfiles/file/2792302453.pdfIn PDF document text
- http://www.ponderosafestival.com/wp-content/plugins/formcraft/file-upload/server/content/files/16073697f00a28---92927247437.pdfIn PDF document text
- https://aquafilling.com/userfiles/file/85072392490.pdfIn PDF document text
- https://svrcontractors.com/wp-content/plugins/super-forms/uploads/php/files/f7da2801153921db5df2d73340675ef9/godobodetebiri.pdfIn PDF document text
- https://chokysitohang.com/Uploads/userfiles/files/sirelimafubir.pdfIn PDF document text
- http://zadonskiy.ru/wp-content/plugins/formcraft/file-upload/server/content/files/160b8c4b3167d3---zubijovubu.pdfIn PDF document text
- https://feedproxy.google.com/~r/skout/mBVl/~3/1xuhb7AK25c/uplcv?utm_term=equilateral+triangle+pattern+in+cPDF 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_off0000b34c.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xB34C | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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font_01_sfnt_off0000cb5e.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xCB5E | 15296 bytes |
SHA-256: 7597dca87bef526f68e4eddcd1b9653096e8b5677099480f28c70f42116ae7e2 |
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font_02_sfnt_off0000f2ab.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xF2AB | 10488 bytes |
SHA-256: 4a76e8ee61a9f646297ea3b64b78a356140b05e3da392f1df23c1bd356fa508d |
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