MALICIOUS
156
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1204.002 Malicious Link
The PDF file was flagged by ML classifiers and ClamAV as malicious, specifically as a phishing or trojan. Heuristics indicate it functions as a link farm, directing users to multiple external URLs hosted on various domains, some of which are compromised WordPress uploads. The presence of numerous links, including one with a 'utm_term' parameter suggesting SEO manipulation, points towards an attempt to distribute malicious content or phish for information.
Machine Learning
- Nyx PDF Classifier malicious score 0.9915
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://drafthe.ru/uplcv?utm_term=a+textbook+of+applied+electronics+pdf PDF link annotation
- http://namuvaldymas.lt/userfiles/file/tonemasirosekerali.pdfIn PDF document text
- http://esipro.be/userfiles/file/44724093879.pdfIn PDF document text
- http://www.globalnautique.nl/upload/files/36051312718.pdfIn PDF document text
- http://vibrobreaker.com/files/files/93971098565.pdfIn PDF document text
- http://www.vishalsahni.com/public/ckfinder/userfiles/files/gipitogudipumatoxa.pdfIn PDF document text
- http://m3hotels.com/userfiles/file/98160390398.pdfIn PDF document text
- http://chia4kids.ru/ckfinder/userfiles/files/39958440955.pdfIn PDF document text
- https://xn--psg-9lac.hu/files/files/sufubalosojadi.pdfIn PDF document text
- http://limpiasol.com/wp-content/plugins/formcraft/file-upload/server/content/files/1614c7478bc236---ferasifirisipojana.pdfIn PDF document text
- http://naplesredeals.com/userfiles/files/rigudarisubugadi.pdfIn PDF document text
- http://iknow.pl/files/file/zitizinivenu.pdfIn PDF document text
- http://hellnocancershow.com/wp-content/plugins/formcraft/file-upload/server/content/files/16140ebc92edee---14518574835.pdfIn PDF document text
- http://aspbae.org/userfiles/file/43972831785.pdfIn PDF document text
- http://www.combatsim.eu/wp-content/plugins/formcraft/file-upload/server/content/files/1614fe16b554d2---kamipipelarosuvi.pdfIn PDF document text
- http://grandinhr.eu/images/user/file/dasareja.pdfIn PDF document text
- http://vtaky.sk/media/file/22052471961.pdfIn PDF document text
- https://coloreverything.love/wp-content/plugins/super-forms/uploads/php/files/93076d19fc5664b03fe0ed61ceeaa6ab/sukajabu.pdfIn PDF document text
- http://client.diffuse.info/files/28699995569.pdfIn PDF document text
- http://auto-spec.ca/fck/file/wapupinajovosanuvorup.pdfIn PDF document text
- http://gizmakina.com/depo/sayfaresim/file/88859231104.pdfIn PDF document text
- https://www.sudicobank.com/ckfinder/userfiles/files/givajikepitobodo.pdfIn PDF document text
- http://www.novosib-sport.ru/ckfinder/userfiles/files/32738993389.pdfIn PDF document text
- http://kmbb.at/userfiles/file/soverisabusogogogepab.pdfIn PDF document text
- http://ziepniekkalns.lv/wp-content/plugins/formcraft/file-upload/server/content/files/1613f7410e8352---perugamop.pdfIn PDF document text
- http://assushop.com/userfiles/assushop.com/file/6536885857.pdfIn PDF document text
- https://www.darrellstuckey.com/wp-content/plugins/formcraft/file-upload/server/content/files/16134426d8a48f---57747869626.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_off0000b735.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xB735 | 10928 bytes |
SHA-256: f8ece7c640ffd9934a4b5e3f269f997c1f3353705f0d3910ac8f989fddb60361 |
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font_01_sfnt_off0000d074.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xD074 | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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font_02_sfnt_off0000e886.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xE886 | 16892 bytes |
SHA-256: 0253a315e5efc41f2b250a7376b2cb7ff91b96611add916057fc97c047f7aa90 |
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