MALICIOUS
156
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
The PDF file was flagged by ML classifiers and ClamAV as malicious, specifically as a phishing trojan. It contains numerous links, many pointing to compromised CMS upload directories or disposable hosting, indicating a link farm designed to redirect users. The presence of embedded URLs and the PDF_SEO_DISPOSABLE_LINK_FARM heuristic strongly suggest an attempt to drive traffic to malicious sites, likely for phishing or malware distribution.
Machine Learning
- Nyx PDF Classifier malicious score 0.9964
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://millersexpress.com/userfiles/file/mozewivinajuliw.pdf In PDF document text
- http://sameiroeventos.pt/ficheiros/292836881.pdfIn PDF document text
- https://appvid.eus/userfiles/files/350033090.pdfIn PDF document text
- https://www.benkorner.nl/admin/library/ckfinder/userfiles/files/rezodane.pdfIn PDF document text
- https://trungtammatnamviet.vn/upload/files/pifirofilebezor.pdfIn PDF document text
- http://4darchitecture.org/img/all/bakojafavulotedozexod.pdfIn PDF document text
- http://viswinkelindex.nl/images/uploads/43209749961.pdfIn PDF document text
- http://domkomplekt34.ru/attachments/file/87892459485.pdfIn PDF document text
- https://www.golddustdental.com/wp-content/plugins/formcraft/file-upload/server/content/files/16143763a3b688---73123294886.pdfIn PDF document text
- http://twsl.mingann.info/upload/ckfinder_temp/files/20210915072638.pdfIn PDF document text
- http://wooshin.kr/uploaded/file/81257246661343700a079d.pdfIn PDF document text
- http://oumkua.com/userfiles/file/85707950995.pdfIn PDF document text
- http://szm.hu/userfiles/file/51142272127.pdfIn PDF document text
- http://www.smartlandgroup.com/ckfinder/userfiles/files/68236651451.pdfIn PDF document text
- https://wecareu.net/ckfinder/userfiles/files/kuxabovatuvozikopube.pdfIn PDF document text
- https://net-mex.hu/ckfinder/userfiles/files/95393257685.pdfIn PDF document text
- https://fedico.ca/upload/editor/file/32262954781.pdfIn PDF document text
- http://smartmedicaleg.com/wp-content/plugins/formcraft/file-upload/server/content/files/1614114181576e---27556888972.pdfIn PDF document text
- http://mirai-kankyo.com/userfiles/files/kexapuzubenen.pdfIn PDF document text
- http://wolfpackbasketballacademy.com/content_docs/88145082803.pdfIn PDF document text
- https://gk-termopanel.ru/wp-content/plugins/super-forms/uploads/php/files/f53cbff98e3f0504f81c557e394704d5/mekimenu.pdfIn PDF document text
- http://zbirozskepodzamci.cz/userfiles/kibosote.pdfIn PDF document text
- https://feedproxy.google.com/~r/skout/mBVl/~3/3vuEKuznOb8/uplcv?utm_term=tom+and+jerry+the+movie+full+movie+2021PDF 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_off0000ef9a.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xEF9A | 11120 bytes |
SHA-256: 4fe21c25a174049b7b076fb1fb31b1597a51757ea41b750f01893c7afea551dc |
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font_01_sfnt_off00010967.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x10967 | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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font_02_sfnt_off00012179.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x12179 | 19756 bytes |
SHA-256: 90ad7c07d16b7999144c92cc10311a18ba9060e88fa9805d942bf5de9d306055 |
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