MALICIOUS
164
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
This PDF file was detected as malicious by ClamAV and an ML classifier, indicating a high likelihood of malicious intent. It contains embedded JavaScript and numerous external URIs, many of which are hosted on compromised websites or disposable domains, suggesting a link farm designed to redirect users to malicious content. The presence of embedded JavaScript points towards potential exploitation or further payload delivery.
Machine Learning
- Nyx PDF Classifier malicious score 0.9990
Heuristics 7
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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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Embedded JS stream low PDF_JSPDF references a /JS stream. Generic JavaScript is common in benign forms; specific dangerous APIs are scored by separate rules.
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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://coretry.ru/uplcv?utm_term=how+to+put+parental+lock+on+firestick PDF link annotation
- https://festival.bg/fckeditorfiles/file/kepubikem.pdfIn PDF document text
- https://www.costaverde.it/wp-content/plugins/formcraft/file-upload/server/content/files/16141b1220970b---kalateruzigewuzig.pdfIn PDF document text
- http://gsemilia.it/userfiles/files/63074518334.pdfIn PDF document text
- http://noticiascgnews.com.br/ckfinder/userfiles/files/81603294639.pdfIn PDF document text
- http://www.argentum.com/wp-content/plugins/super-forms/uploads/php/files/3q7fge7fbjlitbpmroqll8l17p/bufor.pdfIn PDF document text
- http://iphysiology.ru/upload/4403339985.pdfIn PDF document text
- https://sicurezzaips.it/uploads/file/8003937531.pdfIn PDF document text
- http://worshipedia.mobi/sites/default/files/file/36874109391.pdfIn PDF document text
- https://totounited.com/contents/files/mobuvekogolin.pdfIn PDF document text
- https://nevjegyzek.eu/uploads/file/75756950752.pdfIn PDF document text
- http://graphicon.hu/wp-content/plugins/formcraft/file-upload/server/content/files/1613a9ead214ba---nepudugirubexulenasopas.pdfIn PDF document text
- https://tresonance.org/uploadfiles/96490127710.pdfIn PDF document text
- http://inlikeflintlogistics.com/wp-content/plugins/formcraft/file-upload/server/content/files/1612ee89b7eb92---14916400437.pdfIn PDF document text
- https://cursosadistanciayonline.com/medios/files/rujulupakikamosusasatufud.pdfIn PDF document text
- http://www.mecateengenharia.com.br/ckfinder/userfiles/files/85118067734.pdfIn PDF document text
- http://santiagoporter.com/js/ckfinder/core/connector/php/files/49253113796.pdfIn PDF document text
- http://pedraferro.com/files/files/72864297017.pdfIn PDF document text
- http://classicalgardenfountains.com/uplds/file/37254846775.pdfIn PDF document text
- http://www.ausafrica.co.za/wp-content/plugins/formcraft/file-upload/server/content/files/1613d165319fe7---99324765082.pdfIn PDF document text
- https://bi-kiesabbau.de/cmsimple/images/file/tuwosedujax.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_off0000debf.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xDEBF | 17228 bytes |
SHA-256: 7ff4d8d7db765ba9146887e11334cb7107317e0568759f71b6d82119ee4f8c12 |
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font_01_sfnt_off00010a8f.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x10A8F | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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font_02_sfnt_off000122a6.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x122A6 | 10744 bytes |
SHA-256: 8d45dfedb8a2d5c7b696b1bda370cd11bce5b3eb83b358803dd5e9bc6795d0b9 |
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