MALICIOUS
156
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1204.002 Malicious Link
The PDF file contains a link farm directing users to multiple URLs hosted on compromised WordPress sites. The presence of numerous links on disposable hosting and the ML classifier's high confidence score indicate a malicious intent, likely to lure users to phishing or malware distribution sites. No scripts were extracted, and the document body was unreadable binary data.
Machine Learning
- Nyx PDF Classifier malicious score 0.9981
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://www.pianoszimmermann.com.br/wp-content/plugins/formcraft/file-upload/server/content/files/1608218d27c815---zinasevuzuvegezod.pdf In PDF document text
- https://popcouncilinstitute.org/wp-content/plugins/super-forms/uploads/php/files/48ac7888ab503c1125694ffdb6640c09/letopefupepirisek.pdfIn PDF document text
- http://chochosanencino.com/uploads/files/36546574101.pdfIn PDF document text
- http://apart1day.ru/file/xosomiwatatejasibokexel.pdfIn PDF document text
- http://insidethedigitaltrend.biz/userfiles/file/14024584127.pdfIn PDF document text
- http://miltonhigh65.com/clients/874455/File/51107482685.pdfIn PDF document text
- http://linkingpeople.info/userfiles/file/55069969726.pdfIn PDF document text
- http://larrysiegellaw.com/customer/3/d/9/3d947ad6ce2568d98b832ccf5548371bFile/gixurezerogumidinekano.pdfIn PDF document text
- http://artkulinaria.pl/sites/default/files/file/33763886857.pdfIn PDF document text
- http://kredoteka.ru/uploads/file/55957157696.pdfIn PDF document text
- https://iwistw.com/upload/files/68592511198.pdfIn PDF document text
- http://mfahk.com/upload/files/68061570406.pdfIn PDF document text
- https://area34.info/wp-content/plugins/super-forms/uploads/php/files/k6e3gg2b3o05safp9607phlms7/9475831156.pdfIn PDF document text
- http://grupposcorcia.it/userfiles/files/60656659240.pdfIn PDF document text
- http://poexali.org/static/image/_u/system/files/35812403911.pdfIn PDF document text
- http://mansiya.com/uploadfile/files/80151055406.pdfIn PDF document text
- http://www.fsnn.se/wp-content/plugins/formcraft/file-upload/server/content/files/160707f7ec7bee---4972623625.pdfIn PDF document text
- https://aristi-trap.com/upload/users/files/voxujovovegufafaruzax.pdfIn PDF document text
- http://cloverdiamond.com/file/jetinuso.pdfIn PDF document text
- https://fluffy-chins.com/images/file/11364946652.pdfIn PDF document text
- https://singaporeroadshow.com/wp-content/plugins/super-forms/uploads/php/files/cf04d18c1a33e81e102f57a45bb0ecc7/8600209742.pdfIn PDF document text
- https://ketex.com/trcgp/ckfinder/userfiles/files/zaladejoxafumig.pdfIn PDF document text
- https://feedproxy.google.com/~r/1eyvgo/aqOO/~3/YTWXjIUwRh0/uplcv?utm_term=plant+and+cell+physiologyPDF 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_off0000b970.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xB970 | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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font_01_sfnt_off0000d187.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xD187 | 10808 bytes |
SHA-256: f02565ee016eaab0bdbd3de5b4be45ff57fbef6e4bf6952bdb94c4f6bd1fb3bf |
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font_02_sfnt_off0000ea2a.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xEA2A | 16264 bytes |
SHA-256: 1e42077b21415d13fcf97405748b3d6fce2770da80d54c859c12f9d16a55968e |
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