MALICIOUS
164
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
This PDF file contains embedded JavaScript, which is often used to initiate malicious actions. The heuristics indicate the presence of a link farm pointing to compromised WordPress upload storage and other disposable hosting, suggesting an attempt to distribute further malicious content. The ClamAV detection as 'Pdf.Phishing.Trojan' strongly supports a malicious intent, likely involving phishing or trojan delivery.
Machine Learning
- Nyx PDF Classifier malicious score 0.9963
Heuristics 7
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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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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://sakra.sk/storage/file/lapesidotovuxegosowapodaj.pdf
- https://www.ftha.org/admin/ckfinder/userfiles/files/96089945030.pdf
- https://givemeit.ru/wp-content/plugins/super-forms/uploads/php/files/28fca46733c77052220509b832707923/nakaveranasefax.pdf
- http://skoleniridicu-online.eu/ckfinder/userfiles/files/40482086186.pdf
- http://smartdeal.pl/files/upload/files/gasitizerazebo.pdf
- http://motivationandmomentum.net/ci/userfiles/files/rolabukinukixudilow.pdf
- https://youkuvpn.com/upload/files/79312826966.pdf
- http://xn----7sbakif2a3azdub.xn--p1ai/admin/ckfinder/userfiles/files/dirigigitofomasuwa.pdf
- http://kernenshepler.com/customer/3/d/9/3d947ad6ce2568d98b832ccf5548371bFile/12749192520.pdf
- https://flammerouge.ch/userfiles/files/wutixevupuzi.pdf
- https://srldirect.com/ckfinder/userfiles/files/41542746576.pdf
- https://regalcabs.co.uk/wp-content/plugins/formcraft/file-upload/server/content/files/1613dd7525d4f9---42725067212.pdf
- http://freemansphotography.com/wp-content/plugins/formcraft/file-upload/server/content/files/1612f4c1a8d77c---9032202420.pdf
- http://serramentisiciliano.it/userfiles/files/19226986885.pdf
- https://z87992961.com/upload/files/20210911082132.pdf
- https://fabriziochessa.it/userfiles/file/desulazakitapivijedezogud.pdf
- https://grdr.org/paidel/ckfinder/userfiles/files/70842210892.pdf
- http://www.recetasyconsejos.com/wp-content/plugins/formcraft/file-upload/server/content/files/1613ac980a3fe6---kadinesofijezowuxegal.pdf
- http://schokoladenbrunnen.de/idata/lomojarumemixoz.pdf
- http://orthopediedelft.eu/files/zagugafezavejere.pdf
- http://cl-pub.com/files/files/firupusibawemuvuju.pdf
- http://ventiliatoriai.lt/js/ckfinder/userfiles/files/56018908401.pdf
- https://feedproxy.google.com/~r/Uplcv/~3/Om9ozkHLxGw/uplcv?utm_term=wallpaper+poco+x3
- http://www.w3.org/1999/02/22-rdf-syntax-ns#
- http://purl.org/dc/elements/1.1/
- http://ns.adobe.com/pdf/1.3/
- http://ns.adobe.com/xap/1.0/
- http://ns.adobe.com/xap/1.0/mm/
- http://ns.adobe.com/xap/1.0/rights/
- http://dejavu.sourceforge.net
- http://dejavu.sourceforge.net/wiki/index.php/License
Extracted artifacts 3
Files carved from inside the sample during analysis.
| Filename | Kind | Source | Size |
|---|---|---|---|
font_00_sfnt_off0000ccc0.bin9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xCCC0 | 16792 bytes |
font_01_sfnt_off0000e4d2.binc3dcf00a1b017cc3ee53506ffd3f30e205ce011bc38a9db7ca0cd33dd5a11f63 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xE4D2 | 17952 bytes |
font_02_sfnt_off000113dd.bin604f2033f5fce3e4653f253ce879c00311aae2190bb69fc0188a4c1865ecd77e |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x113DD | 10172 bytes |
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