MALICIOUS
156
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1204.002 Malicious Link
The PDF was flagged by ClamAV as 'Pdf.Phishing.Trojan' and ML classifiers indicated a high probability of maliciousness. It contains numerous links, many pointing to compromised WordPress sites, suggesting a link farm or phishing lure. The document body is unreadable, but the heuristic firings strongly indicate a malicious intent related to directing users to external, potentially compromised, resources.
Machine Learning
- Nyx PDF Classifier malicious score 0.9982
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://esteticarcare.com/wp-content/plugins/super-forms/uploads/php/files/46fe04a07f123c949f6073cb210f0d94/41259042634.pdf In PDF document text
- http://sh8ke.com/wp-content/plugins/formcraft/file-upload/server/content/files/1613784ebae7ed---nanepadosolanejovi.pdfIn PDF document text
- http://embeddedhr.com/ckfinder/userfiles/files/77349541541.pdfIn PDF document text
- http://smeeing.com/userfiles/files/58098189535.pdfIn PDF document text
- http://csc-020.com/userfiles/file/20210908212755_8uf3dx.pdfIn PDF document text
- https://maggies-handmade.com/UserFiles/files/31830601081.pdfIn PDF document text
- http://emanuelarombiarchitetto.eu/userfiles/files/tebenupiwoxotoru.pdfIn PDF document text
- https://www.americanapi.com/wp-content/plugins/formcraft/file-upload/server/content/files/161336e5627aa5---36029270077.pdfIn PDF document text
- http://fapannimario.it/userfiles/files/jabedivifizafaxofumivux.pdfIn PDF document text
- http://www.kickcommerce.com/userfiles/file/49718671964.pdfIn PDF document text
- http://leaguengn.com/userfiles/file///bukadex.pdfIn PDF document text
- https://www.ferienhof-schneider.de/wp-content/plugins/formcraft/file-upload/server/content/files/16137e04487f4a---kuzagepumepadow.pdfIn PDF document text
- http://denda.co.kr/ckfinder/userfiles/files/womifisagik.pdfIn PDF document text
- http://smartdeal.pl/files/upload/files/93641107975.pdfIn PDF document text
- https://perfecthospital.org/ckfinder/userfiles/files/nedujolovofosetefo.pdfIn PDF document text
- https://www.temtechnologies.fr/ckfinder/userfiles/files/divelisaxiro.pdfIn PDF document text
- https://kuepancong.com/contents/files/duwopenamuxovadajow.pdfIn PDF document text
- http://teaterskolen-efteruddannelsen.dk/ckfinder/userfiles/files/55589618542.pdfIn PDF document text
- http://video-cycling.de/files/file/wuzaforusufakap.pdfIn PDF document text
- http://daeryuhealthcare.com/ckupload/files/sajojidiwowovef.pdfIn PDF document text
- http://happyorderfood.com/uploads/files/2863231485.pdfIn PDF document text
- http://guide-eq.com/userfiles/file/20210923100209_3kotez.pdfIn PDF document text
- http://lavera.it/wp-content/plugins/formcraft/file-upload/server/content/files/161371acb5cba2---vinebalinato.pdfIn PDF document text
- https://www.ferienhof-schneider.de/wp-content/plugins/formcraft/file-upload/server/content/files/161336ba34fe92---refelitoranunizago.pdfIn PDF document text
- http://nyitotthetvege.kastelyszallodak.hu/userfiles/files/1238104400.pdfIn PDF document text
- https://feedproxy.google.com/~r/skout/mBVl/~3/DOqCt-cVA4I/uplcv?utm_term=kindle+paperwhite+user+guide+10th+generationPDF 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_off0000bb31.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xBB31 | 11024 bytes |
SHA-256: 606f83f122f9d10c84a71c5df8c05f4e98328aad8b6c01af3d82f34d6c0c7b8e |
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font_01_sfnt_off0000d498.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xD498 | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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font_02_sfnt_off0000ecaa.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xECAA | 18184 bytes |
SHA-256: ed1f3094e2bfa9d827230e9e05b2f1aa3c0f76076aaaae2b54c3a0b8db4ee04d |
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