MALICIOUS
156
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
This PDF file contains numerous embedded URLs, many of which point to compromised WordPress sites. The heuristic 'PDF_SEO_DISPOSABLE_LINK_FARM' indicates a pattern of using disposable hosting for link farms, suggesting an attempt to obscure malicious destinations. The ClamAV detection as 'Pdf.Phishing.Trojan' further supports a malicious intent, likely to lure users to phishing sites or download further malware.
Machine Learning
- Nyx PDF Classifier malicious score 0.9973
Heuristics 6
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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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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://infrive.ru/uplcv?utm_term=frontier+orbitals+and+organic+chemical+reactions PDF link annotation
- http://global-poseg.com/wp-content/plugins/formcraft/file-upload/server/content/files/1613acdb133e6e---22301246605.pdfIn PDF document text
- http://www.fliesen-brill.de/wp-content/plugins/formcraft/file-upload/server/content/files/16134bcb4ac5ce---bedefugemuxana.pdfIn PDF document text
- https://vdbergelectro.nl/wp-content/plugins/super-forms/uploads/php/files/5beee080fd37ec139f2cd3b7a5c4e000/zukidiwixora.pdfIn PDF document text
- https://accu-split.com/userfiles/files/jesipomapawevomezorupage.pdfIn PDF document text
- http://garderoba.sk/images/_file/kezujesu.pdfIn PDF document text
- http://thucphamtruongthanh.com/img/files/64421909745.pdfIn PDF document text
- http://lepetitjaunais.com/userfiles/file/87134266988.pdfIn PDF document text
- http://michaelwilliamslaw.com/customer/3/d/9/3d947ad6ce2568d98b832ccf5548371bFile/pozopenesovomiminumuma.pdfIn PDF document text
- http://acmemask.com/upfiles/editor/files/gesokagodezebegamomotuwi.pdfIn PDF document text
- https://augsburger-dartliga.de/uploads/file/jekemawu.pdfIn PDF document text
- http://burragebrothers.org/demo/jolie/beta/userfiles/files/vagepoluvubanaze.pdfIn PDF document text
- http://slowjamsundays.com/wp-content/plugins/formcraft/file-upload/server/content/files/16145b6f911057---mupavebudunurupeguzos.pdfIn PDF document text
- https://ksdc.in/userfiles/file/83713282441.pdfIn PDF document text
- http://retailcop.ca/files/pisugezafagijebe.pdfIn PDF document text
- http://ckrestaurantgroup.com/ckfinder/userfiles/files/76990198308.pdfIn PDF document text
- http://thangmayedex.com/webroot/img/files/widabodulirug.pdfIn PDF document text
- https://stka.gr/ckfinder/userfiles/files/35962281734.pdfIn PDF document text
- http://voyagevietnamlaos.com/hinhanh/file/lofixitudapuxatil.pdfIn PDF document text
- https://postelezmasivu-zlin.cz/ckfinder/userfiles/files/refuniliz.pdfIn PDF document text
- http://inlikeflintlogistics.com/wp-content/plugins/formcraft/file-upload/server/content/files/16135a0033d1aa---94748644591.pdfIn PDF document text
- http://famcareconnect.org/wp-content/plugins/formcraft/file-upload/server/content/files/1613af915a878c---35416613666.pdfIn PDF document text
- 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_off0000ace7.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xACE7 | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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font_01_sfnt_off0000c4fe.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xC4FE | 10936 bytes |
SHA-256: 95e0a962b739fbcc1ccd898dcdd20c57dfedff703d2c98fdb381ae36cdfea754 |
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font_02_sfnt_off0000dddc.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xDDDC | 14480 bytes |
SHA-256: ea8c2d463c122a0432b974ab28774db547c199e908ae67174f94e0ce21f90c65 |
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