MALICIOUS
104
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
The PDF contains embedded JavaScript and numerous external URIs, many of which point to compromised WordPress sites or disposable hosting, indicating a link farm designed to redirect users. The ML classifier strongly suggests malicious intent. The embedded JavaScript likely facilitates the redirection or further malicious activity.
Machine Learning
- Nyx PDF Classifier malicious score 0.9990
Heuristics 6
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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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Embedded JS stream low PDF_JSPDF references a /JS stream. Generic JavaScript is common in benign forms; specific dangerous APIs are scored by separate rules.
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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://studioingegneriavaragnolo.com/userfiles/files/zinapavurusudofuno.pdf In PDF document text
- http://gardatrans.com/content/Files/wumurinavirelafubin.pdfIn PDF document text
- http://wbbray.com/wp-content/plugins/formcraft/file-upload/server/content/files/161365e1f6d664---97341156083.pdfIn PDF document text
- http://studiolegalezullo.eu/userfiles/files/derowukug.pdfIn PDF document text
- http://nature-revive.org/files/file/tamipoxugifikixivuxenav.pdfIn PDF document text
- https://xn--64-mlcufjjaii0l.xn--p1ai/wp-content/plugins/super-forms/uploads/php/files/0c766f6f2e5b22a708dd1c22454a7022/xuxoba.pdfIn PDF document text
- https://adiwirawanbali.com/wp-content/plugins/super-forms/uploads/php/files/4ed45a2f11a36138449648a8aad59445/wibadasoja.pdfIn PDF document text
- http://langmoon.jp/js/upload/files/37151238504.pdfIn PDF document text
- http://www.sandipmallick.com/fckimages/file/vezirasekod.pdfIn PDF document text
- http://hitelesen.com/userfiles/file/jebazevepidevis.pdfIn PDF document text
- http://perchegouet.com/ckfinder/userfiles/files/vagagajigixizufedovag.pdfIn PDF document text
- http://www.qookspot.kitchen/wp-content/plugins/formcraft/file-upload/server/content/files/16138324c90c0a---medipiv.pdfIn PDF document text
- https://www.traveltimevipp.com/wp-content/plugins/super-forms/uploads/php/files/c1ae6989783f7412fb2c8ec7e15e9b47/92831866578.pdfIn PDF document text
- https://safe-international.com/userfiles/file/96883697366.pdfIn PDF document text
- http://happysmilecard.com/uploads/files/bujuperadenu.pdfIn PDF document text
- http://dexgerm.com/data/file/userfiles/files/vadejuzatig.pdfIn PDF document text
- http://pp-aqua.com/userfiles/files/31557737337.pdfIn PDF document text
- http://udokutscher.de/gfx/userfiles/files/31002408889.pdfIn PDF document text
- https://thediamangroup.com/_images/files/75231557738.pdfIn PDF document text
- http://jinyezi.cn/upload/ganedoduman.pdfIn PDF document text
- https://feedproxy.google.com/~r/Uplcv/~3/DOqCt-cVA4I/uplcv?utm_term=pink+lips+and+empty+hearts+pdf+freePDF 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_off0000bd19.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xBD19 | 18108 bytes |
SHA-256: 65a0dbeecb9fc25e797196149ddad4603b5c1c5ebd4fe160e98e31010eedfe3d |
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font_01_sfnt_off0000ec51.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xEC51 | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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font_02_sfnt_off00010468.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x10468 | 10852 bytes |
SHA-256: e761abde8d82d6a23fd67a00750901076214f59ef335d6ddc6b1885e854ac1ca |
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