MALICIOUS
164
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1204.002 Malicious Link
The PDF file was flagged by a machine learning classifier and ClamAV as malicious, specifically as a phishing trojan. It contains numerous links, many pointing to compromised WordPress uploads or disposable hosting, suggesting a link farm designed to redirect users to malicious content. The presence of a 'download button' heuristic further supports the lure-based attack pattern.
Machine Learning
- Nyx PDF Classifier malicious score 0.9971
Heuristics 7
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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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Visual download / call-to-action button lure low SE_DOWNLOAD_BUTTONDocument contains a call-to-action phrase ('Click here to download', 'Download Now', etc.) — low-signal unless other findings point to a malicious workflow
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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://laborke.ru/uplcv?utm_term=basic+electrical+by+vk+mehta+pdf PDF link annotation
- http://z-sinpro.com/upload/files/fizepofumerimasujagudovid.pdfIn PDF document text
- https://artesapanaderia.xyz/aym_image/files/63784138493.pdfIn PDF document text
- http://hanasushi6.com/uploads/files/58757041215.pdfIn PDF document text
- http://hnc2.com/userfiles/file/kenuj.pdfIn PDF document text
- http://rund-sro.cz/UserFiles/File/wuberuzojajovavop.pdfIn PDF document text
- http://naturestuff.nl/siteimages/file/32522007318.pdfIn PDF document text
- https://www.digitalsofts.com/wp-content/plugins/formcraft/file-upload/server/content/files/16141435b6c40f---18331870886.pdfIn PDF document text
- https://fivetc.vn/uploads/files/18748243901.pdfIn PDF document text
- https://jairdefreitas.com/ckfinder/userfiles/files/xetupelaki.pdfIn PDF document text
- http://motorlustor.net/userfiles/file/38716153205.pdfIn PDF document text
- http://unityproductions.com/upload/files/69341293221.pdfIn PDF document text
- http://refpecsbelvaros.hu/kepek/files/54625233322.pdfIn PDF document text
- https://machnhaduong.com/images/uploads/files/jurivuvobet.pdfIn PDF document text
- http://sakirnoopo.ru/wp-content/plugins/super-forms/uploads/php/files/3d3a4fff4d86f910b93518f074ad7a78/zanijevugogezid.pdfIn PDF document text
- http://schokofontaenen.de/idata/81396026257.pdfIn PDF document text
- https://ecoverservice.be/gallery/file/64787995536.pdfIn PDF document text
- http://totalfinance.ca/wp-content/plugins/formcraft/file-upload/server/content/files/16140bd6354b1d---nujudune.pdfIn PDF document text
- https://relaxationplusmn.com/wp-content/plugins/super-forms/uploads/php/files/79d776b99975535713920ea396c5687b/81677300782.pdfIn PDF document text
- http://etabetasurvey.com/userfiles/files/noporusebegija.pdfIn PDF document text
- https://law.myvzl.com/wp-content/plugins/super-forms/uploads/php/files/n57d4a8lc1uv6qr5fihh65gs1m/14664386725.pdfIn PDF document text
- http://deborahkay.com/ckfinder/userfiles/files/18570544429.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_off0000c0b2.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xC0B2 | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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font_01_sfnt_off0000d8c9.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xD8C9 | 11128 bytes |
SHA-256: 5c13d65f1f47c8f116d5bd237c16bd98984e77e4c2157d6f98fb51a1831e7ae6 |
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font_02_sfnt_off0000f29c.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xF29C | 16988 bytes |
SHA-256: 403f4e0bdd58e81a5a11085a6f1accf450307f79c599b7c31bda6ab8f2de796d |
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