MALICIOUS
156
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1203 Exploitation for Client Execution
The PDF contains a large number of embedded URLs, many of which point to compromised CMS upload directories. The heuristic 'PDF_SEO_DISPOSABLE_LINK_FARM' and 'PDF_COMPROMISED_CMS_UPLOAD_LINK_FARM' indicate a pattern of using such sites for distribution. ClamAV also detected this file as 'Pdf.Phishing.Trojan'. The ML classifier also flagged it as malicious with high confidence.
Machine Learning
- Nyx PDF Classifier malicious score 0.9848
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://grappin-annat-como.com/userfiles/grappin-annat-como.com/file/tupogixudeferuridik.pdf In PDF document text
- http://mfplus.ba/wp-content/plugins/formcraft/file-upload/server/content/files/1609fe95db40f5---42812552899.pdfIn PDF document text
- https://airbays.com/userfiles/file/46667209424.pdfIn PDF document text
- https://www.freshstartdigitalmarketing.com/wp-content/plugins/super-forms/uploads/php/files/9485540b23d1fa617373efc0a3b9c384/75330728820.pdfIn PDF document text
- https://poolpoint.be/uploads/file/jelugarorolakafo.pdfIn PDF document text
- http://eske.hu/wp-content/plugins/formcraft/file-upload/server/content/files/160947b8d3e6de---59436519308.pdfIn PDF document text
- http://xn--80akij1ajew.xn--p1ai/wp-content/plugins/formcraft/file-upload/server/content/files/16070e6da2e8b6---xavutimuwaluxez.pdfIn PDF document text
- https://www.heracles-hotel.eu/wp-content/plugins/super-forms/uploads/php/files/k21gq7bcc75r7alr2ajb0q5do0/93521232029.pdfIn PDF document text
- https://www.growxponential.com/wp-content/plugins/super-forms/uploads/php/files/o7t08brss6uvpllekdtpc77but/vivufisufege.pdfIn PDF document text
- https://higher-reason.com/wp-content/plugins/super-forms/uploads/php/files/8m8eoh281tnuo48ds52hst9rk5/dukexutovupuzadupoto.pdfIn PDF document text
- http://xn--42-6kcdlkbomh7beggito5p.xn--p1ai/userfiles/file/65441721733.pdfIn PDF document text
- http://am-assets.com/aom/magnolia/userfiles/file/9261974336.pdfIn PDF document text
- http://csc0731.com/userfiles/file/20210607152508_ubfa7b.pdfIn PDF document text
- https://www.colegiodesafio.net/home/wp-content/plugins/formcraft/file-upload/server/content/files/160dc3e090f2c0---76013531667.pdfIn PDF document text
- https://aitalk.vn/upload/files/54778457913.pdfIn PDF document text
- https://www.lindopoint.it/wp-content/plugins/super-forms/uploads/php/files/e9cf906254959105ca0809d63894c849/31068403572.pdfIn PDF document text
- https://acronimocostanzo.com/userfiles/file/lufuvobiro.pdfIn PDF document text
- https://www.energetisch-therapeut-estie.nl/wp-content/plugins/formcraft/file-upload/server/content/files/1607f02a7a126f---xebesine.pdfIn PDF document text
- http://densayhongngoai.com/uploads/userfiles/file/12888061886.pdfIn PDF document text
- http://clubselectionvoyages.com/images/file/28115610518.pdfIn PDF document text
- http://climacom.eu/userfiles/files/rukafujinulolepu.pdfIn PDF document text
- http://abc-tel.ru/data/File/7511252209.pdfIn PDF document text
- https://www.karenlovelee.com/wp-content/plugins/formcraft/file-upload/server/content/files/160a398bf11ecf---79419852251.pdfIn PDF document text
- http://www.introspekta.si/ckfinder/ckeditor_uploaded_files/files/2616817723.pdfIn PDF document text
- http://automotiveenergy.cz/userfiles/file/rebibobogowibara.pdfIn PDF document text
- http://holidayinntorino.com/userfiles/files/rewutizasajulazivu.pdfIn PDF document text
- https://feedproxy.google.com/~r/1eyvgo/aqOO/~3/PmAiG5ZyT-k/uplcv?utm_term=women+who+run+with+the+wolves+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_off0000edbe.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xEDBE | 17400 bytes |
SHA-256: 1fe22ba5895ebf65ef9382dd2b9466ce6fa6488782d9aa54b7ae9b568c5e18c0 |
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font_01_sfnt_off00011ade.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x11ADE | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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font_02_sfnt_off000132f5.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x132F5 | 10844 bytes |
SHA-256: 68dd7eca25a47dd474a5d6b5da7e01dc79ffd7948613338ffe3b11c7b09f4e9b |
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