MALICIOUS
156
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
The file was detected as malicious by ClamAV and an ML classifier, and exhibits characteristics of a link farm pointing to compromised WordPress uploads. The embedded URLs suggest a phishing or malware distribution attempt, likely disguised as a document download. Although no scripts were explicitly extracted, the PDF structure and URL patterns are indicative of malicious intent.
Machine Learning
- Nyx PDF Classifier malicious score 0.9965
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://medvor.ru/uplcv?utm_term=basic+electrical+and+electronics+engineering+book+pdf+download PDF link annotation
- http://dossalas.com/wp-content/plugins/super-forms/uploads/php/files/12b94e4cd3cf9d3a0d4b1eca4f7a480c/gerebolibadutebaxida.pdfIn PDF document text
- https://es21sys.com/userfiles/file/39017687298.pdfIn PDF document text
- http://loadcell.vn/Images_upload/files/kibujibivagudusoju.pdfIn PDF document text
- http://aorganboys.handyfriendship.com/upload/files/vodubasof.pdfIn PDF document text
- https://alkirbilaw.com/userfiles/files/78941314575.pdfIn PDF document text
- http://ty6600.com/userfiles/file/93444192140.pdfIn PDF document text
- http://erpsamik.com/ckfinder/userfiles/files/14798630734.pdfIn PDF document text
- http://linuxnewyork.com/draft/media/gaxodado.pdfIn PDF document text
- http://rotarytattoomachine.co/project-new/christianbook/upload_images/file/jotomunuzese.pdfIn PDF document text
- https://worldkelo.com/wp-content/plugins/super-forms/uploads/php/files/c0187877f781f6b851994f4572188a3f/wunijodezewemupadonij.pdfIn PDF document text
- http://abwrosedale.com/uploads/files/39184724004.pdfIn PDF document text
- http://wedooverseas.com/userfiles/file/89067802478.pdfIn PDF document text
- http://barudan.hk/UploadFile/file/20210914171601545.pdfIn PDF document text
- http://kastely-vacduka.hu/fileok/file/wugusupom.pdfIn PDF document text
- http://brenno-tojestto.pl/userfiles/file/birikiweb.pdfIn PDF document text
- http://mikomisushiwc.com/uploads/files/nezakemuvoteparaxedolobe.pdfIn PDF document text
- https://mandarinkinesiska.com/userfiles/file/50428752699.pdfIn PDF document text
- http://www.1000ena.com/wp-content/plugins/formcraft/file-upload/server/content/files/161328f3a35f15---nevebotobizavuruwes.pdfIn PDF document text
- http://steinemann-ag.ru/lalezezapuxapizokogabo.pdfIn PDF document text
- http://cpbnatation.fr/fckeditor/userfiles/file/visurazeremuvuzafeb.pdfIn PDF document text
- http://kmjmt.com/news/upload/file/210918031640038677wtf0nl.pdfIn PDF document text
- https://sikahaiphong.com/images/news/files/nevugufawunojixuruniret.pdfIn PDF document text
- 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_off0000ace3.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xACE3 | 14676 bytes |
SHA-256: c94ac91203c992a4a70e1568e42616108b78666dc3c7b31da05b56224c7df307 |
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font_01_sfnt_off0000d1d0.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xD1D0 | 11168 bytes |
SHA-256: 98db94e46b3e1cf888f3402e424a638d57b938d6251404b279405366e79e45ca |
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font_02_sfnt_off0000ebb9.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xEBB9 | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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