MALICIOUS
156
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1204.002 Malicious Link
The PDF file was flagged by ClamAV as Pdf.Phishing.Trojan and an ML classifier indicated a high probability of maliciousness. Heuristics identified it as a link farm, with multiple URLs pointing to compromised CMS uploads and disposable hosting. The document body, though truncated, contains metadata suggesting it was generated by wkhtmltopdf, a tool often used to create PDFs from web content, further supporting the link farm hypothesis.
Machine Learning
- Nyx PDF Classifier malicious score 0.9948
Heuristics 6
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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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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 http://ceramicaartisticamarsalese.it/userfiles/files/lakigemegege.pdf In PDF document text
- http://biomax.shop/filespath/files/20210904235726.pdfIn PDF document text
- https://congchungnguyenlieu.vnpec.xyz/uploads/files/pobepulufuzo.pdfIn PDF document text
- https://ailani.org/wp-content/plugins/super-forms/uploads/php/files/3a940e7ef48e8fa83cee3a42302f45af/lamoji.pdfIn PDF document text
- https://www.adoz.cz/ckfinder/userfiles/files/64773882367.pdfIn PDF document text
- http://shopcode.ru/uploads/file/kosamatosugesetimun.pdfIn PDF document text
- http://milcontabil.com.br/wp-content/plugins/super-forms/uploads/php/files/6rj6mhc1d1q2pdpd9ftq7cfk85/14651595250.pdfIn PDF document text
- http://boardmark.com/files/file/saluxovipivemesoxupurozig.pdfIn PDF document text
- http://spielundlicht.de/content_provider/documents/files/latiwivelorasasokivolir.pdfIn PDF document text
- http://ever0036.com/assets/uploads/ckedit/files/20210911064828.pdfIn PDF document text
- https://angkaganjil.com/contents/files/dujewamivajisovapuvi.pdfIn PDF document text
- http://z-sinpro.com/upload/files/33388923939.pdfIn PDF document text
- https://nurea.se/currency/userfiles/file/85722557578.pdfIn PDF document text
- http://hattingtoemrerogsnedker.dk/userfiles/file/6498413121.pdfIn PDF document text
- https://eniedu.com/data/file/20210907175215.pdfIn PDF document text
- http://vallovin.it/userfiles/files/rerefumepidowus.pdfIn PDF document text
- http://grafichesirio.com/userfiles/files/zugabinidifabijajexebaxe.pdfIn PDF document text
- https://karate2.cdmedia.pl/userfiles/file/25457621870.pdfIn PDF document text
- http://vimar.ua/userfiles/files/3254183046.pdfIn PDF document text
- https://xn--90aweabvm.xn--p1ai/ckfinder/userfiles/files/13479112017.pdfIn PDF document text
- https://giant-nano.com/app/webroot/userfiles/files/39666031577.pdfIn PDF document text
- https://alummaswaja.com/yii/sdbalikpapan/home/images/upload/files/bumorarozufakesekuz.pdfIn PDF document text
- https://cardolf.ro/files/50232579217.pdfIn PDF document text
- http://salonlomi.pl/wp-content/plugins/formcraft/file-upload/server/content/files/1614372633e7d0---mexalasefileg.pdfIn PDF document text
- https://feedproxy.google.com/~r/1eyvgo/aqOO/~3/YTWXjIUwRh0/uplcv?utm_term=android+txd+toolPDF link annotation
- 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_off0000cff0.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xCFF0 | 17044 bytes |
SHA-256: fb46480308262341a3d7d8ce26676ea9932930d50b4f6588204c0a56c5329db1 |
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font_01_sfnt_off0000fc69.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xFC69 | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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font_02_sfnt_off0001147f.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x1147F | 9860 bytes |
SHA-256: 8cd3eb90fd38386e5d74fbbbb45ff710d6a07ba6a342c935f760852fe9893715 |
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