MALICIOUS
156
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
The PDF document was flagged by ML classifiers and ClamAV as malicious, indicating a high likelihood of malicious intent. It contains numerous embedded URLs, many pointing to compromised WordPress sites, suggesting a link farm designed to redirect users to phishing or malware hosting sites. The presence of these URLs and the overall structure strongly suggest a phishing or malware distribution campaign.
Machine Learning
- Nyx PDF Classifier malicious score 0.9991
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://chcial.ru/uplcv?utm_term=manual+of+structural+kinesiology+20th+edition+pdf PDF link annotation
- http://www.louthadventures.ie/wp-content/plugins/formcraft/file-upload/server/content/files/160ae75bd309f3---46896644824.pdfIn PDF document text
- http://bsbcarpet.com/userfiles/file/21072238595.pdfIn PDF document text
- https://www.penyembuhanholistikreiki.com/wp-content/plugins/formcraft/file-upload/server/content/files/1607aa42c21c50---60455915415.pdfIn PDF document text
- http://ipvoicenj.com/wp-content/plugins/formcraft/file-upload/server/content/files/160915c614b8a5---96608089360.pdfIn PDF document text
- https://www.restaurant-latableedevercel.com/ckfinder/userfiles/files/jibizexukisubara.pdfIn PDF document text
- http://www.esthemed.ch/wp-content/plugins/formcraft/file-upload/server/content/files/160a0489b7e2ad---rumiwereluxosapuzuse.pdfIn PDF document text
- https://klingende-zeder.de/wp-content/plugins/formcraft/file-upload/server/content/files/160754da33393f---palavekomujabi.pdfIn PDF document text
- https://prikolnaya.com/wp-content/plugins/super-forms/uploads/php/files/0f2fd7a1c9fe3dec00f08ed08519f834/31138300146.pdfIn PDF document text
- http://omatsuri.kr/data/userfiles/files/nogunukekizowabudo.pdfIn PDF document text
- https://west-holding.com/userfiles/file/fusimujajotarawop.pdfIn PDF document text
- http://stylekd.ru/files/43706195749.pdfIn PDF document text
- http://duoctruongxuan.vn/userfiles/image/file/88252919845.pdfIn PDF document text
- http://goodmix-psc.com/userfiles/files/dufepibiwilofijenagovi.pdfIn PDF document text
- http://beamstraffic.ae/amb/userfiles/file/xokesoxomozurifabilabe.pdfIn PDF document text
- http://kleinschaden-expert.de/userfiles/file/pegemubogokivumiz.pdfIn PDF document text
- https://5udua.com/contents//files/gijinefovidotumowejugos.pdfIn PDF document text
- https://parklanehotel.asia/userfiles/file/60695751244.pdfIn PDF document text
- https://777mto.org/contents//files/60724087600.pdfIn PDF document text
- https://www.ogblfrontaliers.fr/wp-content/plugins/super-forms/uploads/php/files/58ong5gte5fubkv67bi4uvdmm0/deranez.pdfIn PDF document text
- https://africanresearchcenter.com/userfiles/file/saluneboburowawobupi.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_off0000b6dc.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xB6DC | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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font_01_sfnt_off0000ceee.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xCEEE | 16372 bytes |
SHA-256: 51ae677da38be53b8fb0da5ed74afdbd9eea801c7572007e06737677d05b1adc |
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font_02_sfnt_off0000f955.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xF955 | 11440 bytes |
SHA-256: 6bed16d70a1f4653b6222237401a7e1581e87c39eec8e88f80c9b7e421e52ef0 |
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