MALICIOUS
156
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1059.007 JavaScript
The PDF file is detected as malicious by ML classifiers and ClamAV, indicating a high likelihood of malicious intent. It contains numerous links to compromised WordPress sites and other domains, suggesting it functions as a link farm to distribute malware or conduct phishing. The embedded URLs, such as 'https://inwebjor.ru/uplcv?utm_term=percentage+increase+and+decrease+without+a+calculator+worksheet', are likely used to redirect users to malicious content.
Machine Learning
- Nyx PDF Classifier malicious score 0.9997
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://inwebjor.ru/uplcv?utm_term=percentage+increase+and+decrease+without+a+calculator+worksheet
- https://www.finestkindcharter.com/wp-content/plugins/formcraft/file-upload/server/content/files/16092910aa170a---katirilutovedikitureb.pdf
- http://call.ae/wp-content/plugins/formcraft/file-upload/server/content/files/16081e809df75a---80715829410.pdf
- https://www.americanapi.com/wp-content/plugins/formcraft/file-upload/server/content/files/160708e3a7d81d---tetidemisujawevowetekaxa.pdf
- https://specialbrands.gr/wp-content/plugins/super-forms/uploads/php/files/ffb379ee3b3f33a6256df71a955ae963/4695389198.pdf
- http://bloomx.com/sites/all/sites/bloomx.com/files/62550053165.pdf
- http://www.stratcareerservices.com/wp-content/plugins/formcraft/file-upload/server/content/files/16094d9e99622e---jusasurizin.pdf
- http://victorylimo1.com/wp-content/plugins/formcraft/file-upload/server/content/files/16085905dba235---padidusomibubonajof.pdf
- http://www.leesii.com/wp-content/plugins/formcraft/file-upload/server/content/files/160a497ad6c0e8---56097970775.pdf
- https://divorcioconsensual.com.br/wp-content/plugins/super-forms/uploads/php/files/40f278838d9c94a9af427b8c9fc3fa71/69068717947.pdf
- https://amrapalispot.com/userfiles/file/kevewezoruwe.pdf
- https://kuechentreff-schmid.de/wp-content/plugins/super-forms/uploads/php/files/6r24dmce41t5rtsebjv8hepq9q/pudedozetemibebosamavik.pdf
- https://geneolock.com/locktactyuma/userfiles/file/mewazudowud.pdf
- https://www.aserspa.net/wp-content/plugins/super-forms/uploads/php/files/36gc9mfrrib0qils3k5tohcre0/natifurudele.pdf
- http://baharemadinah.com/wp-content/plugins/formcraft/file-upload/server/content/files/16083212b642d5---94493166814.pdf
- https://useoneconvo.com/wp-content/plugins/super-forms/uploads/php/files/0914877c6dc5af291840f0e3b0014755/59339346797.pdf
- http://kulturazebrak.cz/userfiles/91131352148.pdf
- http://www.homefacelifters.com/wp-content/plugins/super-forms/uploads/php/files/2a237df9dbe90e38368027370ec378b1/wijukeporeramanesobew.pdf
- http://dmn.ca/wp-content/plugins/formcraft/file-upload/server/content/files/16075eee8cceef---8210222824.pdf
- http://sl-light.ru/design/img/upload/file/45420212344.pdf
- http://midel.me/userfiles/file/xeranutupuwofesupelilojas.pdf
- http://www.ascendercorp.com/
- http://www.ascendercorp.com/typedesigners.html
- 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://scripts.sil.org/OFL
Extracted artifacts 2
Files carved from inside the sample during analysis.
| Filename | Kind | Source | Size |
|---|---|---|---|
font_00_sfnt_off0000e2f8.bin37e131d25bd8624ed50dc3eb78efa1f7daddb327396d471ed448e9d91ab9804d |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xE2F8 | 5360 bytes |
font_01_sfnt_off0000f539.bind201b62b86d1673a2181f0874b62b140b5ac53c1aead4845d1b3d731e10eaca6 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xF539 | 11200 bytes |
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