MALICIOUS
96
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
The PDF file contains numerous links, many pointing to compromised WordPress sites, suggesting a link farm or redirection scheme. The ML classifier strongly indicates maliciousness. While no scripts were directly extracted, the PDF structure and embedded URIs are indicative of a phishing or malicious redirection attempt, likely delivered as a spearphishing attachment.
Machine Learning
- Nyx PDF Classifier malicious score 0.9951
Heuristics 5
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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.sudburyhighspeedinternet.ca/wp-content/plugins/super-forms/uploads/php/files/cb5eab8e93aeab1b9c9c69d9128cea37/danoniv.pdf
- https://www.varishastalari.com/wp-content/plugins/formcraft/file-upload/server/content/files/16073f3f8671d4---30165242821.pdf
- https://www.audioclinica.pt/wp-content/plugins/super-forms/uploads/php/files/f8blh2vuh4cnuefv8qp3pnmgc4/23060144671.pdf
- http://angelojrobles.com/admin_initial_test/userfiles/file/89216557647.pdf
- https://allianceflooring.net/wp-content/plugins/super-forms/uploads/php/files/382907eed284ed809b78860a59f836f0/26183480530.pdf
- http://coyada.com/up_images/up_images/93342770062.pdf
- http://www.stallionreadymix.co.za/wp-content/plugins/formcraft/file-upload/server/content/files/160804ab4e3506---94723338208.pdf
- http://argentum.com/wp-content/plugins/super-forms/uploads/php/files/rkn7jdp10uvub8d3lm77db9m68/vobosuzekoseref.pdf
- https://brod-plovdiv.com/images/21584672844.pdf
- http://bouncebodysupplements.com/newerac2c/userfiles/file/41640473975.pdf
- https://callhfelectric.com/wp-content/plugins/formcraft/file-upload/server/content/files/1609838aaea6fc---75534465351.pdf
- https://remoteworkerclub.com/wp-content/plugins/super-forms/uploads/php/files/656fd40565a47ee56873cacd6eca789c/63701467545.pdf
- http://taiyoaquris.cn/upload/userfiles/files/20210624143650.pdf
- http://rybarict.cz/webpagebuilder/ckfinder/userfiles/files/fekunumosig.pdf
- https://hotnews.md/upload/userfiles/files/57599497515.pdf
- http://michardardillier.com/ckfinder/userfiles/files/26946337381.pdf
- https://independentmusicleague.com/wp-content/plugins/super-forms/uploads/php/files/f9e922b79f6ea714bf1796064d74f4aa/rotasokodukesetosevowu.pdf
- https://drivingschoolofnorthtexas.com/wp-content/plugins/formcraft/file-upload/server/content/files/16080d64caae58---nixuxivugud.pdf
- http://plusbateria.com/wp-content/plugins/formcraft/file-upload/server/content/files/160703f9387776---tarorinikifowuvipimuzib.pdf
- https://www.m2asolutions.com/wp-content/plugins/super-forms/uploads/php/files/3ac9086c71381e44b3c337869a04bd37/56948998130.pdf
- http://korean-school.hu/hangul/userfiles/file/75383755287.pdf
- https://kes-stv.ru/wp-content/plugins/super-forms/uploads/php/files/d578a857ec9ec2a5cd64a5b49e395d74/xixovijuxa.pdf
- https://www.couleurs-et-jardin.fr/wp-content/plugins/formcraft/file-upload/server/content/files/1606cb1d8635ce---74025329939.pdf
- http://subventionsbetrug.de/wp-content/plugins/super-forms/uploads/php/files/aqtjfukt7ichug3nhp51j37tqq/56636386085.pdf
- https://feedproxy.google.com/~r/skout/mBVl/~3/cv9VXjIrmdE/uplcv?utm_term=rmo+sample+papers+for+class+9+pdf
- http://www.w3.org/1999/02/22-rdf-syntax-ns#
- http://purl.org/dc/elements/1.1/
- http://ns.adobe.com/pdf/1.3/
- http://ns.adobe.com/xap/1.0/
- http://ns.adobe.com/xap/1.0/mm/
- http://ns.adobe.com/xap/1.0/rights/
- http://dejavu.sourceforge.net
- http://dejavu.sourceforge.net/wiki/index.php/License
Extracted artifacts 3
Files carved from inside the sample during analysis.
| Filename | Kind | Source | Size |
|---|---|---|---|
font_00_sfnt_off0000b855.bincaa1c446713dd56faa93e2e880070ccabf64a39a0d9b32c3c25508caf166c1f0 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xB855 | 16256 bytes |
font_01_sfnt_off0000e22e.bin9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xE22E | 16792 bytes |
font_02_sfnt_off0000fa45.bin4c081bd66420c5d25ddb32d71e51ebc292d8b9d3ac980b192d34078420777bfb |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xFA45 | 10700 bytes |
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