MALICIOUS
164
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
The sample was detected as malicious by ClamAV and an ML classifier, indicating a high likelihood of malicious intent. It functions as a link farm, presenting numerous URLs that point to potentially compromised WordPress sites or disposable hosting, suggesting an attempt to distribute further malicious content or phish users. The presence of invoice-related language further supports a lure-based attack pattern.
Machine Learning
- Nyx PDF Classifier malicious score 0.9942
Heuristics 7
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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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Fake invoice / payment lure low SE_INVOICE_LUREDocument contains invoice or payment language paired with an action verb — useful context when combined with link, macro, or attachment indicators
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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://2greenchicks.com/wp-content/plugins/super-forms/uploads/php/files/bda597eb5fe8b68b181cf88bf139ee3d/74851259952.pdf
- http://ristorantebiscione.com/userfiles/files/31732176219.pdf
- http://www.guaitoli.eng.br/wp-content/plugins/formcraft/file-upload/server/content/files/160bc3ac8e746d---jefut.pdf
- http://sobsai.com/ckfinder/userfiles/files/3666119328.pdf
- http://locnuocvietmy.com/Images_upload/files/26402201432.pdf
- https://leesman.com/wp-content/plugins/super-forms/uploads/php/files/6ae99d8c72d31a1af981c534d08020ae/lesefazidefixe.pdf
- https://nenanhduong.vn/Upload/files/24908962075.pdf
- https://bluetact.com/locktactyuma/userfiles/file/99362775235.pdf
- http://www.sudaff.com/pics/file/24328438394.pdf
- http://01host.ru/userfiles/files/31789652795.pdf
- https://steklo-shik.ru/userfiles/file/xujew.pdf
- https://dipinkrishna.com/wp-content/plugins/formcraft/file-upload/server/content/files/160b5ad9b8c1d9---9275221918.pdf
- http://www.cheapmotorcycleinsurancepa.com/wp-content/plugins/super-forms/uploads/php/files/cb8940m60egnuvtp6nibkjoj21/wofojekamebi.pdf
- https://pinpointfeedtech.com/ckfinder/userfiles/files/2143536077.pdf
- http://www.wallisandemmanuel.com/wp-content/plugins/formcraft/file-upload/server/content/files/160828340a2c62---gimadizarilojomupepure.pdf
- https://joefairless.com/wp-content/plugins/super-forms/uploads/php/files/d1464a04b533e75901fec2da514f330a/15409225830.pdf
- https://cristiandellavedova.com/wp-content/plugins/super-forms/uploads/php/files/hqeqmmsk64mnoq6te7cf01prh3/57153966982.pdf
- http://gostium.com/wp-content/plugins/formcraft/file-upload/server/content/files/160a0fe3295583---dakurozubujade.pdf
- http://www.nowsingapore.co.id/wp-content/plugins/formcraft/file-upload/server/content/files/1607bc7990ecaa---pefise.pdf
- http://dalboncostruzioni.it/userfiles/files/godivevuserum.pdf
- http://www.grupohk.com.br/wp-content/plugins/formcraft/file-upload/server/content/files/16074471992f9a---lufalewukoni.pdf
- http://isystemlab.com/admin/ckfinder/userfiles/files/kilapuwinisefif.pdf
- http://someteme.com/archivos/_20210624040106.pdf
- http://staractivecollection.com/resimler/site/files/93300676481.pdf
- https://grupo-kayros.com/userfiles/file/goruxexozufisariwix.pdf
- https://feedproxy.google.com/~r/skout/mBVl/~3/ngfLrbzwjls/uplcv?utm_term=everfi+investing+final+quiz+answers
- 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_off0000f47b.bin1999d31fd8bbc20780838b34743a5da7c4623e4b862373d3777fc25a2c4ce9b3 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xF47B | 17544 bytes |
font_01_sfnt_off00012274.binaa164aadad60079e0f245b63bd9678569e8b1e104a86a322a3ae81518c56f799 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x12274 | 10712 bytes |
font_02_sfnt_off00013af6.bin9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x13AF6 | 16792 bytes |
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