MALICIOUS
156
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1204.002 Malicious Link
The PDF file was flagged by ML classifiers and ClamAV as malicious, indicating a high likelihood of malicious intent. It contains numerous external URIs and links to compromised CMS upload storage, suggesting it functions as a link farm to distribute malicious content or phish users. The presence of multiple links on disposable hosting further supports this assessment.
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://queure.ru/uplcv?utm_term=nocturnal+hypotension+symptoms PDF link annotation
- https://bisleriwheel.genefied.co/ckfinder/userfiles/files/zapuwatej.pdfIn PDF document text
- https://nuevocoach.co.uk/wp-content/plugins/super-forms/uploads/php/files/1a875940df1b91f1fb318766152d9e24/rifatujajulixaresi.pdfIn PDF document text
- https://landtop.com/filespath/files/20210910221409.pdfIn PDF document text
- http://lawngo.net/fckfiles/nojanizemuxarevusege.pdfIn PDF document text
- http://ezclasssites.com/var/wwww/dev-ezclasssites-com/data/files/22902129624.pdfIn PDF document text
- http://www.emploi.nat.tn/ckeditor/ckfinder/userfiles/files/69765990300.pdfIn PDF document text
- https://razdolle.by/wp-content/plugins/super-forms/uploads/php/files/7044i2i8dv6q54op0qpp4v5754/83977671896.pdfIn PDF document text
- http://diegogenna.it/userfiles/files/87422692857.pdfIn PDF document text
- https://www.modianodesign.com/wp-content/plugins/formcraft/file-upload/server/content/files/161442e3d717de---dotefedufufoforiwekidub.pdfIn PDF document text
- http://mayepnuocmia.vn/data/ckfinder/files/rivixupefum.pdfIn PDF document text
- http://densayhongngoai.com/uploads/userfiles/file/mixanumodopativakewat.pdfIn PDF document text
- https://apgr.eu/UserFiles/file/99984815321.pdfIn PDF document text
- http://xn--80aafbladvtgxneccoge3bt.xn--p1ai/pict/file/60813618894.pdfIn PDF document text
- http://hondatayho.vn/images/ckeditor/files/87646889402.pdfIn PDF document text
- http://jingkangchem.com/upload/files/gumaxufejivezazikolo.pdfIn PDF document text
- http://bakefruit.com/uploads/files/202109052150047702.pdfIn PDF document text
- http://bckvalumni.org/userfiles/file/66124943339.pdfIn PDF document text
- https://ratsimae.ee/media/contents/file/55806936689.pdfIn PDF document text
- http://losangeles.songhakbbq.com/uploads/files/82357897474.pdfIn PDF document text
- https://aznamaste.com/ckfinder/userfiles/files/duriseguxegaji.pdfIn PDF document text
- http://travellightnepal.com/userfiles/file/ruxafeximeka.pdfIn PDF document text
- https://get.belonnanotservice.ga/away?/wp-content/plugins/formcraft/file-upload/server/content/files/1615814af1a5e1---79792808868.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_off0000b165.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xB165 | 16128 bytes |
SHA-256: f3ac022bc0bf9a22aef53005267725dab2f5965ec936bccf6a682084e683b0d5 |
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font_01_sfnt_off0000daf4.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xDAF4 | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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font_02_sfnt_off0000f30b.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xF30B | 10832 bytes |
SHA-256: 73b7a73753e5d393e6c112fcea5f10e0c50af770a89c097272744c59cf8a7067 |
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