MALICIOUS
176
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
This PDF document was flagged as malicious by ClamAV and an ML classifier. The file embeds a large number of external links characteristic of an SEO link farm, many hosted on compromised CMS upload directories and uses an image-based lure. Specific URLs and indicators for this sample are listed in the indicators section.
Machine Learning
- Nyx PDF Classifier malicious score 0.9973
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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Image-only document with action trigger (screenshot lure) medium PDF_IMAGE_LUREPDF has 1 image(s), only 1 text block(s), carries a click-outward action, and is only 67 KB — typical shape of a phishing lure where a full-page screenshot hides a clickable button that launches or submits to an attacker URL.
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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://www.okcfarmersmarket.com/wp-content/plugins/super-forms/uploads/php/files/48e7b0e5826ba39fad49aa0d588fc5fd/bivazorisotagarat.pdf In PDF document text
- https://bajrahrs.com/userfiles/file/safuzatibuloj.pdfIn PDF document text
- https://atlanthealth.com/wp-content/plugins/super-forms/uploads/php/files/c8b2c9c90faa5844259eb036df26f4a0/vilanipamenagofaveb.pdfIn PDF document text
- http://scvumaichiramen.com/uploads/files/gageneg.pdfIn PDF document text
- http://unnatiwelfareorganization.com/ckfinder/userfiles/files/dodogozusipe.pdfIn PDF document text
- http://iamsoldierfit.com/wp-content/plugins/formcraft/file-upload/server/content/files/160c15fed1a5c2---49498877286.pdfIn PDF document text
- https://brusroom.com/wp-content/plugins/super-forms/uploads/php/files/1245a97c3a092e4a9fb9c9d19c0a881b/13038223499.pdfIn PDF document text
- http://drstevealbrecht.com/wp-content/plugins/super-forms/uploads/php/files/b122a6e0f7174d507f8abe1467f795ff/zuwiresevowulilafegezud.pdfIn PDF document text
- https://aduanaldelvalle.com/userfiles/file/bonuvesefodetonufa.pdfIn PDF document text
- https://vakukh.ru/wp-content/plugins/super-forms/uploads/php/files/810a11aabd6270078170bd5d4981889d/73563247404.pdfIn PDF document text
- http://foto-preiss.at/upload_files/files/povemesosol.pdfIn PDF document text
- https://www.tessilgiada.it/wp-content/plugins/formcraft/file-upload/server/content/files/16115471d91938---panumozofugosorov.pdfIn PDF document text
- http://anhuifan.com/upload_fck/file/2021-7-2/20210702174906135797.pdfIn PDF document text
- https://beachesbrewing.com/wp-content/plugins/super-forms/uploads/php/files/3a487addade8d45c609374c7449617a9/bixizejelefus.pdfIn PDF document text
- https://suemsas.com/wp-content/plugins/super-forms/uploads/php/files/arvubg5469v08h760he8t6vtq3/24455623434.pdfIn PDF document text
- https://almuhja.ps/ckfinder/userfiles/files/1184843920.pdfIn PDF document text
- http://saveursetsavoirs.fr/image/file/65135980038.pdfIn PDF document text
- https://www.m2asolutions.com/wp-content/plugins/super-forms/uploads/php/files/491529cd589fd85c4b423fcb8c071751/49414320294.pdfIn PDF document text
- http://cupta.org/userfiles/files/20210725065233.pdfIn PDF document text
- http://bestapp4u.com/admin/uploadedfiles/file/99656696007.pdfIn PDF document text
- http://thanhtindesign.vn/uploads/image/files/25780626333.pdfIn PDF document text
- https://feedproxy.google.com/~r/1eyvgo/aqOO/~3/YTWXjIUwRh0/uplcv?utm_term=hemoglobin+adalah+pdfPDF 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_off0000af2b.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xAF2B | 14284 bytes |
SHA-256: cf8d5b11ea1eabc5220a5496d569ec43d20a92ecdb683e07ba7426a1faa276b7 |
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font_01_sfnt_off0000d24d.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xD24D | 10712 bytes |
SHA-256: 9822be9b91d954c17559ef614ddd28c2698046dbb7add53dd36fdcac7868be6f |
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font_02_sfnt_off0000ea1e.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xEA1E | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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