MALICIOUS
156
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
The file is identified as malicious by ML classifiers and ClamAV, with multiple heuristics indicating it functions as a link farm. The PDF contains numerous embedded URLs pointing to external sites, some hosted on compromised CMS uploads or disposable domains, suggesting a phishing or malware distribution scheme. The presence of these links and the overall structure strongly indicate an attempt to redirect users to malicious content.
Machine Learning
- Nyx PDF Classifier malicious score 0.9981
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://pixomot.ru/uplcv?utm_term=three+isotopes+of+silicon+occur+in+nature PDF link annotation
- http://mastrodibaglio.it/userfiles/files/63575030511.pdfIn PDF document text
- https://ymvii.com/admin/upload/files/32080912057.pdfIn PDF document text
- http://gldbirdgel.com/user_img/files/gajadegos.pdfIn PDF document text
- http://itnetworkconsultingsf.com/helpdesk/app/webroot/img/userfiles/files/wupuzeb.pdfIn PDF document text
- https://martan.es/cenavarra_userfiles/files/58558084692.pdfIn PDF document text
- https://bruceleevideos.org/images/file/nojufolaxuwe.pdfIn PDF document text
- http://heaig.org/editor/ckfinder/userfiles/files/xexilewekeniwov.pdfIn PDF document text
- http://magicfood-cn.com/files/20210906205647.pdfIn PDF document text
- http://omonetach.pl/foto/ilustracje/file/bumuveta.pdfIn PDF document text
- https://www.colegiodesafio.net/home/wp-content/plugins/formcraft/file-upload/server/content/files/161301bd84499b---94025863089.pdfIn PDF document text
- https://newsale.linyn.mobi/upload/ckeditor/pages/files/95006445200.pdfIn PDF document text
- http://factblogs.com/uploaded_files/userfiles/files/letetikikejabenix.pdfIn PDF document text
- https://clubkdo.fr/img/pics/files/2081985072.pdfIn PDF document text
- https://www.lire-les-notes.com/ckfinder/userfiles/files/bixovu.pdfIn PDF document text
- http://frezerovka.by/images/fxeditor/file/65224763821.pdfIn PDF document text
- http://www.naturapreserved.com/wp-content/plugins/formcraft/file-upload/server/content/files/16136eb667f30b---56508215695.pdfIn PDF document text
- https://xn--fiqa735be48e.com/upload/files/29409334674.pdfIn PDF document text
- https://cebubigsellers.com/userfiles/file/70500441849.pdfIn PDF document text
- http://cuacuontoanthang.com/media/file/nadopizunosejos.pdfIn PDF document text
- https://www.ferienhof-schneider.de/wp-content/plugins/formcraft/file-upload/server/content/files/161394a9061fca---buxidojamugelebasim.pdfIn PDF document text
- https://backcountryplayground.com/wp-content/plugins/super-forms/uploads/php/files/9a9a186cd279dbf2b441d23981af72ff/nakidaxuzesituwuwunev.pdfIn PDF document text
- http://mamolenasnc.it/userfiles/files/23304538299.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_off0000ce95.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xCE95 | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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font_01_sfnt_off0000e6ac.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xE6AC | 10640 bytes |
SHA-256: c6fb18ae7b1a194bbf68eb19a380b96d530abcb8cbdd1845afc67d3e9c95f166 |
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font_02_sfnt_off0000fef9.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xFEF9 | 18096 bytes |
SHA-256: 12097535597ea0fab1c2269d85d0ef1963676e1cf1c10264a6be2ed4ec2ebb23 |
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