MALICIOUS
156
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
The sample is identified as malicious by ML classifiers and ClamAV, indicating a high likelihood of malicious intent. It contains numerous links to compromised WordPress sites and disposable hosting, suggesting it functions as a link farm or phishing lure. The presence of embedded URLs and the PDF_SEO_DISPOSABLE_LINK_FARM heuristic indicate an attempt to redirect users to external malicious content.
Machine Learning
- Nyx PDF Classifier malicious score 0.9947
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://coretry.ru/uplcv?utm_term=doxil+and+carboplatin
- http://www.onegelha.com/wp-content/plugins/super-forms/uploads/php/files/3570f0e3617818308a204d74a7c42c0b/31378764758.pdf
- http://sarahscupcakery.com/wp-content/plugins/formcraft/file-upload/server/content/files/160cb081094149---najaxasapogobemexel.pdf
- https://cor.org.ar/wp-content/plugins/super-forms/uploads/php/files/kfqfq6v77cu0abj98ork3nmsuo/rumegavi.pdf
- http://maihome.hu/admin1/file/5389277187.pdf
- http://lotuscourtpune.com/wp-content/plugins/super-forms/uploads/php/files/p2r58fr5kk9elher9q1bh3qpq7/73873185714.pdf
- http://remontnoedelo.ru/wp-content/plugins/formcraft/file-upload/server/content/files/16077d4864d154---96293508999.pdf
- http://www.naturapreserved.com/wp-content/plugins/formcraft/file-upload/server/content/files/16082e124c7437---lopibedopobimukim.pdf
- http://itaindustrial.com.br/wp-content/plugins/formcraft/file-upload/server/content/files/1606ca7ab79453---27082077373.pdf
- https://licorne-hotel-restaurant.com/userfiles/file/zopibezebeguxakula.pdf
- https://mytutr.com/wp-content/plugins/super-forms/uploads/php/files/b4f93cb50a02cfb46972305efb2f4cc6/reradibemuroregimo.pdf
- https://www.rockandroll.blog.br/wp-content/plugins/super-forms/uploads/php/files/o47na7i8qo7vnsnr7jjdq8tod6/29939101429.pdf
- http://www.mtpartnersfl.com/wp-content/plugins/formcraft/file-upload/server/content/files/16085fbf84c441---38479046148.pdf
- https://apoiotelecom.com/imagens/img_fckeditor/file/5611071673.pdf
- http://www.deadclan.nl/wp-content/plugins/formcraft/file-upload/server/content/files/160c0fdd41440c---sezukegedavow.pdf
- https://amirep.com/wp-content/plugins/super-forms/uploads/php/files/d737ae82febcafd3ac00bb9af0f00196/72225748685.pdf
- https://stagerightstaging.com/wp-content/plugins/super-forms/uploads/php/files/25655c59df38a6065c4d252fbd0e25a6/28253528249.pdf
- http://files.ibiza-ferien.de/file/basaxogexunedujogovubugix.pdf
- https://zold-kommando.hu/files/woloniwevaregizexi.pdf
- https://www.endthestigmacounselling.com/wp-content/plugins/super-forms/uploads/php/files/niv6fst59nmed5ln75sn43jp10/91450587264.pdf
- http://beulahcooleycollection.com/clients/870349/File/89204397112.pdf
- http://ty-universe.com/image/files/20210602_075227.pdf
- https://desertflying.club/wp-content/plugins/formcraft/file-upload/server/content/files/1608dfd15d5ebe---dibazavijedudujufozuborif.pdf
- http://www.mtpartnersfl.com/wp-content/plugins/formcraft/file-upload/server/content/files/160bdc2e0a36a0---pegigirozofoxofekegalepat.pdf
- http://ngpsusa.com/wp-content/plugins/super-forms/uploads/php/files/1oqrtblc71g21fc39r116tgpu9/wovezagikexato.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_off0000eed9.bin760b30dc62b2f4af2755be9dc437872a98f8e0f3d5020baebb80da610298764c |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xEED9 | 10448 bytes |
font_01_sfnt_off00010668.bin9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x10668 | 16792 bytes |
font_02_sfnt_off00011e7a.binf8f409f8c19f1713488980541f0752e984b15cb592a607c50924c07e7a06128d |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x11E7A | 18056 bytes |
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