MALICIOUS
156
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
This PDF file was flagged by ML classifiers and ClamAV as malicious, indicating a phishing or malware distribution attempt. It contains numerous external links, many pointing to compromised WordPress sites and disposable hosting, suggesting a link farm designed to redirect users to malicious content. The presence of embedded URLs and the overall structure strongly suggest it's part of a phishing campaign, likely delivered as a spearphishing attachment.
Machine Learning
- Nyx PDF Classifier malicious score 0.9820
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://krisoc.ru/uplcv?utm_term=antidiabetic+classification+pdf PDF link annotation
- https://alteanetworks.fr/img/file/88067795449.pdfIn PDF document text
- https://alphacleanwashing.com/wp-content/plugins/super-forms/uploads/php/files/a747e176da0b3b7993c1f61ceb32b176/18400465809.pdfIn PDF document text
- http://pn-tech.net/userData/board/file/munipafi.pdfIn PDF document text
- http://greece-ex.com/images/blog//file/71034877320.pdfIn PDF document text
- https://www.grandiosa.is/wp-content/plugins/super-forms/uploads/php/files/9ualm0veenai684d37dm9q0ga7/55073856725.pdfIn PDF document text
- http://savemaxint.com/files/file/dixuzapixeboxuwe.pdfIn PDF document text
- https://afd.me.uk/wp-content/plugins/super-forms/uploads/php/files/s1sqvjie7rblcv0q0ksad813rs/58533650644.pdfIn PDF document text
- http://execdentalclinic.com/uploads/ckfinder/userfiles/files/96140876519.pdfIn PDF document text
- http://www.ncstarim.com.tr/wp-content/plugins/super-forms/uploads/php/files/1estj41dm4apfgre152lb6ml27/23860280203.pdfIn PDF document text
- https://www.couleurs-et-jardin.fr/wp-content/plugins/formcraft/file-upload/server/content/files/1607c50df58b8b---pepuwowafevasim.pdfIn PDF document text
- https://heritagelogs.com/wp-content/plugins/super-forms/uploads/php/files/ft3ctc55lit76lm30c12p49e36/kuxenajuzuwowepelijo.pdfIn PDF document text
- https://nguyenvanhuongloc.vn/app/webroot/files/images/pages/files/fuxepepifurozazubagi.pdfIn PDF document text
- http://videoacceso.com/wp-content/plugins/formcraft/file-upload/server/content/files/161168d12dfa54---dupevilimotaje.pdfIn PDF document text
- https://www.infratechgroep.nl/wp-content/plugins/super-forms/uploads/php/files/3ab7b390d734ac066faf273bca59a47e/burufukawozawesivunomujav.pdfIn PDF document text
- https://www.avenueroadadvertising.com/wp-content/plugins/formcraft/file-upload/server/content/files/16108e354e9cd8---toxujeruve.pdfIn PDF document text
- https://tapuionoticias.com/ckfinder/files/58913790822.pdfIn PDF document text
- http://sy-smile.com/upload/files/memugelumexito.pdfIn PDF document text
- http://www.cascinasorigherio.it/wp-content/plugins/formcraft/file-upload/server/content/files/160d349d7d4f09---vexokizux.pdfIn PDF document text
- https://wscnaturalhealings.com/wp-content/plugins/super-forms/uploads/php/files/7027b8c5acdc76688b72870911943d17/buvepejilezikuwes.pdfIn PDF document text
- http://1night2day.com/ckupload/files/taruwuba.pdfIn PDF document text
- http://www.wallisandemmanuel.com/wp-content/plugins/formcraft/file-upload/server/content/files/160799e018b663---69737166519.pdfIn PDF document text
- https://adbadog.com/wp-content/plugins/super-forms/uploads/php/files/c0a12402c56ab29d6bd46b053df5d2d4/94705410296.pdfIn PDF document text
- https://europeancustomtailor.com/wp-content/plugins/super-forms/uploads/php/files/dc025e0994e9a1cc0c4ac62b69b23f40/7038089068.pdfIn PDF document text
- https://psychotherapie-dr-albrecht.de/wp-content/plugins/formcraft/file-upload/server/content/files/160a5e404cc54d---zanejujeze.pdfIn PDF document text
- https://foxtailmag.net/wp-content/plugins/super-forms/uploads/php/files/37d3b161f31cd94b7664d612da9663fd/83167568899.pdfIn PDF document text
- http://suamayin.biz/userfiles/file/52565505468.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_off0001082f.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x1082F | 10636 bytes |
SHA-256: dc58a00f52db53404b84f7a1e8ea701f814ecddbb8cfa8358571ee10e1f7d37d |
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font_01_sfnt_off0001206c.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x1206C | 19620 bytes |
SHA-256: 8eb13aefabd90f0f15ec924448e13d728241257e36b33832975a8e64a5145f1a |
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font_02_sfnt_off000152ee.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x152EE | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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