MALICIOUS
164
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
This PDF file was identified as malicious by ML classifiers and ClamAV, indicating a phishing or trojan payload. The document leverages a link farm hosted on compromised WordPress sites, presenting itself as a payment receipt to entice users to download further malicious content. The presence of embedded URLs and the 'SE_INVOICE_LURE' heuristic strongly suggest a phishing attempt.
Machine Learning
- Nyx PDF Classifier malicious score 0.9990
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://belgradenightlife.info/wp-content/plugins/super-forms/uploads/php/files/irk66j4gtjeo3edo9mdliek502/dawawovemupasumew.pdf In PDF document text
- http://vincityhomes.vn/wp-content/plugins/super-forms/uploads/php/files/q2205a4u5001e4mq0miqk6rne1/33001494263.pdfIn PDF document text
- http://uhy-th.com/image/upload/files/nakofezebenudap.pdfIn PDF document text
- https://www.aserspa.net/wp-content/plugins/super-forms/uploads/php/files/sdimo7urv3rpmnkgu3sgin9nnt/futugonuxilomo.pdfIn PDF document text
- http://www.kevinbrooks.ca/wp-content/plugins/formcraft/file-upload/server/content/files/16087f9d27a5c6---74593134224.pdfIn PDF document text
- http://tavernadelsnoguers.com/wp-content/plugins/super-forms/uploads/php/files/9481d4301bb11ecc6b38d563e53afb59/xiwozirajasanu.pdfIn PDF document text
- http://skuplaptop.pl/wp-content/plugins/formcraft/file-upload/server/content/files/160a224bb087c7---74469479628.pdfIn PDF document text
- https://fotojursa.cz/userfiles/file/mipeme.pdfIn PDF document text
- http://pck.malopolska.pl/wp-content/plugins/super-forms/uploads/php/files/22657626885b3309f1c597c6cb6ede7a/tedutufi.pdfIn PDF document text
- http://www.bewegeninarnhem.nl/wp-content/plugins/formcraft/file-upload/server/content/files/16074bb6556be4---76320239821.pdfIn PDF document text
- http://occahomesearch.com/userfiles/files/gejepasivulubalawubo.pdfIn PDF document text
- http://www.gunyagder.org.tr/wp-content/plugins/super-forms/uploads/php/files/tmhc8fakrpjk68ipbd0j04t193/41015795804.pdfIn PDF document text
- http://insidethedigitaltrend.biz/userfiles/file/xanumepovuvopigep.pdfIn PDF document text
- http://salwex.hu/file/dununiwudidurivuxepalo.pdfIn PDF document text
- http://www.commandinglife.com/wp-content/plugins/formcraft/file-upload/server/content/files/160b0c1efbdc84---kivedules.pdfIn PDF document text
- http://informerfitness.com/wp-content/plugins/super-forms/uploads/php/files/e3482e6e617e1560692875fda2da6227/70795348964.pdfIn PDF document text
- http://xn--tnqz8hz5cb8l.com/upload/files/83669512487.pdfIn PDF document text
- http://www.thebetterinsurance.com/wp-content/plugins/formcraft/file-upload/server/content/files/160b9ad2658f1c---wexif.pdfIn PDF document text
- http://odesignlab.ru/admin/ckfinder/userfiles/files/26749437440.pdfIn PDF document text
- https://evenimentecastel.ro/wp-content/plugins/super-forms/uploads/php/files/mf5ndt802tdoi0pl9b6her02t1/lasarofiwususuzekabe.pdfIn PDF document text
- https://autoteam.in/ckfinder/userfiles/files/sademus.pdfIn PDF document text
- https://www.enviedecrire.com/wp-content/plugins/formcraft/file-upload/server/content/files/160c503d26bb2d---63742886074.pdfIn PDF document text
- http://www.pilartangguh.com/file/xalurafabakidefisuxediruk.pdfIn PDF document text
- https://benchmarktransitions.com/wp-content/plugins/formcraft/file-upload/server/content/files/1607eacdd67012---22669090720.pdfIn PDF document text
- https://feedproxy.google.com/~r/skout/mBVl/~3/PmAiG5ZyT-k/uplcv?utm_term=receipt+of+payment+form+template+ukPDF link annotation
- http://www.w3.org/1999/02/22-rdf-syntax-ns#In PDF document text
- http://purl.org/dc/elements/1.1/In PDF document text
- http://ns.adobe.com/pdf/1.3/In PDF document text
- http://ns.adobe.com/xap/1.0/In PDF document text
- http://ns.adobe.com/xap/1.0/mm/In PDF document text
- http://ns.adobe.com/xap/1.0/rights/In PDF document text
- http://dejavu.sourceforge.netIn PDF document text
- http://dejavu.sourceforge.net/wiki/index.php/LicenseIn PDF document text
Extracted artifacts 3
Files carved from inside the sample during analysis.
| Filename | Kind | Source | Size |
|---|---|---|---|
font_00_sfnt_off0000ef93.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xEF93 | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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font_01_sfnt_off000107aa.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x107AA | 10824 bytes |
SHA-256: ee0917c750d11855eb51c6d9807dc17f5434689a01cb4632c520b35697db3bbd |
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font_02_sfnt_off000120a3.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x120A3 | 16984 bytes |
SHA-256: 3b8866fbe966095a02e38d37d0e87e6306092ea230c3c673affcd9b6c56ce354 |
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