MALICIOUS
156
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
The sample was identified as malicious by ML classifiers and ClamAV, indicating a high likelihood of malicious intent. It contains numerous embedded URLs pointing to various domains, many of which appear to be compromised WordPress sites or disposable hosting, suggesting a link farm or phishing lure. The presence of external URI heuristics and the ML_NYX_PDF_MALICIOUS firing strongly support its use in phishing or malware distribution campaigns.
Machine Learning
- Nyx PDF Classifier malicious score 0.9979
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://ketchas.ru/uplcv?utm_term=last+day+on+earth+android+mod PDF link annotation
- http://strahyi.ru/images/file/52041553409.pdfIn PDF document text
- http://dkind.net/userData/board/file/58701960920.pdfIn PDF document text
- https://apluskleaning.com/admin/images/file/19069794973.pdfIn PDF document text
- https://www.ideaklinikkadikoy.com/wp-content/plugins/formcraft/file-upload/server/content/files/1612f95bf6f212---14757717238.pdfIn PDF document text
- http://tahyuh.com/uploads/files/202109110516216772.pdfIn PDF document text
- http://www.smartlandgroup.com/ckfinder/userfiles/files/denolimotezinofalojin.pdfIn PDF document text
- https://www.thecandystoresudbury.com/wp-content/plugins/super-forms/uploads/php/files/jdfdusa92kc65poi7tdd6r6l0s/12823477701.pdfIn PDF document text
- https://shrmivirtual.org/wp-content/plugins/super-forms/uploads/php/files/a2989b3aff875a1f111fd3f4f3ea3086/pinokabosorezo.pdfIn PDF document text
- http://shardamedicalstore.com/singhania/downloads/file/kajisatew.pdfIn PDF document text
- https://lesartsdansmonjardin.com/userfiles/file/20210907192709.pdfIn PDF document text
- http://coconut.hu/userfiles/file/17612588301.pdfIn PDF document text
- https://bearings.vn/images/ckeditor/files/xirumoseludaxinewow.pdfIn PDF document text
- https://ww150003.linebot.net/upfile/files/20210906154306.pdfIn PDF document text
- http://www.nisbd.com/wp-content/plugins/formcraft/file-upload/server/content/files/1612f40c5d509b---86946155419.pdfIn PDF document text
- https://textosl.com/upload/editor/file/13148570621.pdfIn PDF document text
- http://bestforfishing.com/wp-content/plugins/super-forms/uploads/php/files/0a1b4bf688f5f6c760599505c7ca5c23/belotifamobagaruduk.pdfIn PDF document text
- https://cuisinescartier.ca/upload/editor/file/rejugurenidixuzegojanise.pdfIn PDF document text
- https://xn--80aesyq.xn--p1ai/files/file/walovoropulikoxojali.pdfIn PDF document text
- http://change4best.ru/upload/file/93042689309.pdfIn PDF document text
- http://www.alwaysflorida.com/wp-content/plugins/formcraft/file-upload/server/content/files/1613675df12732---99161802749.pdfIn PDF document text
- http://jolanyee.com/upload/files/202109060351218402.pdfIn PDF document text
- http://www.culturehousesun.org/photos/file/83965155242.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_off0000ba17.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xBA17 | 10536 bytes |
SHA-256: a90438fc453d917ab5643dd6db122e434419e3b85b5261c3b45e8f513306470c |
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font_01_sfnt_off0000d1e7.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xD1E7 | 15848 bytes |
SHA-256: 256bff9398fbba94d1fb3c10f92b4284b373b420b82a503ece86e3affa839606 |
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font_02_sfnt_off0000fa43.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xFA43 | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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