MALICIOUS
156
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1203 Exploitation for Client Execution
This PDF file was flagged by multiple heuristics and a machine learning classifier as malicious, with ClamAV identifying it as a phishing trojan. The file contains numerous links pointing to compromised WordPress sites and disposable hosting, suggesting it functions as a link farm to distribute malicious content or conduct phishing attacks. The embedded URLs indicate a pattern of directing users to potentially harmful external resources.
Machine Learning
- Nyx PDF Classifier malicious score 0.9951
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 https://infrive.ru/uplcv?utm_term=dominique+horror+story
- http://stroynerud-sm.ru/wp-content/plugins/formcraft/file-upload/server/content/files/16091de153c4a9---69317987029.pdf
- http://vinmexindia.com/uploads/81696628910.pdf
- http://mountmedpharmacy.co.za/wp-content/plugins/formcraft/file-upload/server/content/files/160bbe27e470b0---pezip.pdf
- https://vidolamerica.org/wp-content/plugins/super-forms/uploads/php/files/927b81c8b78cbcf379e074ae03f7372f/ravuxasinuremobegijune.pdf
- http://treeoflifetolfu.com/clients/0/07/07f122ebb3396bb3f917f2e62af81596/File/lazib.pdf
- https://fultoys.com/userfiles/99673103539.pdf
- http://medicapoland.pl/uploaded/file/zalexubuxinasodojumilu.pdf
- http://admio.ru/wp-content/plugins/formcraft/file-upload/server/content/files/160bbbc60a0340---samukekonewifoxavum.pdf
- http://www.tobywells.org/media/fckdir/file/lazaxakekarumadolatom.pdf
- http://salkim.com/userfiles/file/xetigo.pdf
- http://www.suffaheducation.com/wp-content/plugins/formcraft/file-upload/server/content/files/160843d17c15f9---difez.pdf
- http://www.victorian-manor.co.za/wp-content/plugins/formcraft/file-upload/server/content/files/160baad7da50cb---29181631579.pdf
- https://csom.cz/wp-content/plugins/super-forms/uploads/php/files/a6674134ceef2c74cdc8c2ddbdc26a7b/mekiveji.pdf
- https://www.jemelectric.com/wp-content/plugins/formcraft/file-upload/server/content/files/160b54071c5dbe---77500543058.pdf
- https://asiquim.com/ckfinder/userfiles/files/43183292692.pdf
- http://aj-logistics.com/stock/userfiles/file/gumukagufumuse.pdf
- http://www.naturapreserved.com/wp-content/plugins/formcraft/file-upload/server/content/files/1609519f5b5965---mosidewawiwofisugerit.pdf
- https://www.horisunmauritius.com/wp-content/plugins/super-forms/uploads/php/files/5192af05f2624a5570377f9cb1db6bb4/lutipogogasizojusizajaz.pdf
- http://hi-techfiber.com/userfiles/file/44128435631.pdf
- http://aokisuper.com/ckfinder/userfiles/files/85517909036.pdf
- https://totalyoumovement.com/wp-content/plugins/formcraft/file-upload/server/content/files/160a96f3e8b132---nomupipe.pdf
- https://betonwerkendejonge.nl/wp-content/plugins/formcraft/file-upload/server/content/files/1606d0618b9bec---sisudogajinuzobi.pdf
- http://vegasoft.hr/wp-content/plugins/formcraft/file-upload/server/content/files/160bc4b7b61e92---zosovoviwida.pdf
- http://www.1000ena.com/wp-content/plugins/formcraft/file-upload/server/content/files/160bd7ca748068---wowabazexafudisefo.pdf
- 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_off0000e8fe.bin9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xE8FE | 16792 bytes |
font_01_sfnt_off00010110.bin4159dfaa31b6900b1096bde99fbd7a00b1893afd386f1c303ef7c577dc0c4056 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x10110 | 17700 bytes |
font_02_sfnt_off00012f29.bin4394df41c2285696c346fd5a495303ded26e00117a93344db67d6e60afaa3578 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x12F29 | 10524 bytes |
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