MALICIOUS
156
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1204.002 Malicious Link
The PDF was flagged by ML classifiers and ClamAV as malicious, specifically as a phishing trojan. It contains a large number of embedded URLs, many of which point to compromised websites or disposable hosting, characteristic of a link farm. The document body is heavily obfuscated and unreadable, suggesting it's not intended for direct user interaction but rather to host these links.
Machine Learning
- Nyx PDF Classifier malicious score 0.9955
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://krupongs.com/images/file/47875301440.pdf In PDF document text
- http://strap.sk/uploads/file/1478733865.pdfIn PDF document text
- http://maxitelt.no/wp-content/plugins/formcraft/file-upload/server/content/files/1615d31b94e5f4---rakewizalapuwibed.pdfIn PDF document text
- https://luiginoiobbi.com/userfiles/file/zimowitexum.pdfIn PDF document text
- http://ifaistos.reality.gr/~triantaf/images/file/8532084257.pdfIn PDF document text
- https://x-leather.com/radsportfiles/file/duweza.pdfIn PDF document text
- http://xn--80ahcjevtqq.xn--p1ai/ckfinder/userfiles/files/53291691474.pdfIn PDF document text
- http://eachfun.com/ckfinder/userfiles/site_eachfun_com/files/wuritogoxexinamatafu.pdfIn PDF document text
- http://www.unidacardoso.com.br/wp-content/plugins/formcraft/file-upload/server/content/files/1616c380b98a58---mokag.pdfIn PDF document text
- https://poganyvolgyi.hu/userfiles/file/15051764750.pdfIn PDF document text
- https://antoinepanau.com/wp-content/plugins/super-forms/uploads/php/files/d306062233053da4b2fe1a13c85c4e1d/28892215562.pdfIn PDF document text
- http://leinerpakgelatine.com/survey/userfiles/files/mefidubixegabujowu.pdfIn PDF document text
- http://veterinariacasettamattei.it/userfiles/files/talixulemimivosopimabuku.pdfIn PDF document text
- http://ylphs.com/ckfinder/userfiles/files/tujikasokenafo.pdfIn PDF document text
- http://aedjtj.pretty-match.com/upload/files/ninagopile.pdfIn PDF document text
- https://www.lsv-wittlage.de/ckfinder/userfiles/files/62999482447.pdfIn PDF document text
- https://institutdesante.org/userfiles/file/65279859428.pdfIn PDF document text
- https://curtain.jinware.com/upload/files/lavexoxa.pdfIn PDF document text
- http://dj-venci.com/uploads/pages/files/68419827106.pdfIn PDF document text
- http://fine-trading-knotwork.de/uploads/media/15011202411.pdfIn PDF document text
- https://cian.hr/userfiles/file/walurexajob.pdfIn PDF document text
- http://vp-dmsh.ru/admin/ckfinder/userfiles/files/kezigiribapazugamelipozul.pdfIn PDF document text
- http://makaeximworld.com/wp-content/plugins/formcraft/file-upload/server/content/files/1614c498812c38---8719137881.pdfIn PDF document text
- http://robwalker.net/fckupload/file/dofosuzevuvuruzurekajo.pdfIn PDF document text
- http://feedproxy.google.com/~r/Xvkpad/~3/tgwjJlsMqHc/uplcv?utm_term=are+all+coaxial+cables+the+samePDF 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_off0000df7b.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xDF7B | 10616 bytes |
SHA-256: e4b2327ea1bb9c9b8d1e1765b05889d2cfe1b3294cec3dc39841f1d2f800cbca |
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font_01_sfnt_off0000f7cc.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xF7CC | 17620 bytes |
SHA-256: cfac4f384711ee9496a9b99545e40f3809c8a6f576c8dd1ea2737fc8c8f6bcca |
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font_02_sfnt_off00012568.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x12568 | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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