MALICIOUS
156
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1059.007 JavaScript
The PDF document contains numerous external links, many pointing to compromised WordPress sites, suggesting a phishing or malware distribution campaign. The document body, though partially corrupted, indicates a lure related to 'worksheet answers', likely to entice users to click on the embedded malicious links. The ML classifier and ClamAV detection strongly indicate malicious intent.
Machine Learning
- Nyx PDF Classifier malicious score 0.9998
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 https://drafthe.ru/uplcv?utm_term=despues+de+las+clases+worksheet+answers PDF link annotation
- https://tirthmobile.com/wp-content/plugins/super-forms/uploads/php/files/vr31tgd98pvhj0ajca5apodasu/paverabanudika.pdfIn PDF document text
- http://alacarte-design.de/userfiles/file/44792377419.pdfIn PDF document text
- https://postscriptproductions.com/wp-content/plugins/formcraft/file-upload/server/content/files/16088dd0eaabbd---fuserulema.pdfIn PDF document text
- http://www.kliningstroy.ru/wp-content/plugins/formcraft/file-upload/server/content/files/1608a01244cfb2---rututoferibovoxume.pdfIn PDF document text
- https://kuechentreff-schmid.de/wp-content/plugins/super-forms/uploads/php/files/ku2l9lnli54ro7bu6igo57u6ts/defezivamuwowiw.pdfIn PDF document text
- https://www.couleurs-et-jardin.fr/wp-content/plugins/formcraft/file-upload/server/content/files/16071be23c61dc---14857826073.pdfIn PDF document text
- https://grafitpoint.ru/wp-content/plugins/super-forms/uploads/php/files/8bc7bac7a66ee1694e9edb8a66ecbc61/jewigodarona.pdfIn PDF document text
- http://france-ex.com/images/blog//file/39607818322.pdfIn PDF document text
- http://www.1000ena.com/wp-content/plugins/formcraft/file-upload/server/content/files/16073677047cf4---90688748935.pdfIn PDF document text
- http://www.maoles.com/wp-content/plugins/formcraft/file-upload/server/content/files/1607bcee181cc6---suvubamezibobuwubaramoxor.pdfIn PDF document text
- http://anhbanglaw.com/userfiles/file/37951259190.pdfIn PDF document text
- http://yonseri.org/userfiles/files/foxapinavuxigude.pdfIn PDF document text
- http://www.belladermeestetica.com.br/wp-content/plugins/formcraft/file-upload/server/content/files/1609c606d6f96c---nemufagulebosawepusej.pdfIn PDF document text
- https://www.reflectionuk.com/wp-content/plugins/super-forms/uploads/php/files/joa6ihrapsckrstmbn608ap74d/gawupij.pdfIn PDF document text
- https://coloreverything.love/wp-content/plugins/super-forms/uploads/php/files/3322847b9069f731746a728d2abd32a2/kabanirona.pdfIn PDF document text
- http://www.iqubz.com/wp-content/plugins/formcraft/file-upload/server/content/files/160a728abafb51---7929820766.pdfIn PDF document text
- https://rowadalbyt.com/userfiles/files/rupumeneg.pdfIn PDF document text
- http://www.ascendercorp.com/In PDF document text
- http://www.ascendercorp.com/typedesigners.htmlIn 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://scripts.sil.org/OFLIn PDF document text
Extracted artifacts 2
Files carved from inside the sample during analysis.
| Filename | Kind | Source | Size |
|---|---|---|---|
font_00_sfnt_off0000f2dc.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xF2DC | 5316 bytes |
SHA-256: 48effb6576918f3c218ef736150b818388ce3f70ee1371b70893a71aa0e616cd |
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font_01_sfnt_off00010500.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x10500 | 12676 bytes |
SHA-256: f0f7f597e2deedf783859ea952bd001cda4b2c8e268c7e947bf22926613c8485 |
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