MALICIOUS
156
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1204.002 Malicious Link
The PDF contains a large number of embedded URLs, many of which point to compromised websites or disposable hosting, indicating a link farm designed to redirect users to potentially malicious sites. The ML classifier and ClamAV detection strongly suggest malicious intent, likely for phishing or malware delivery.
Machine Learning
- Nyx PDF Classifier malicious score 0.9948
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://irlanc.ru/uplcv?utm_term=molecular+systematics+hillis+pdf PDF link annotation
- http://thucphamchucnangmy.vn/uploads/files/18494449871.pdfIn PDF document text
- http://www.sbawerribee.com.au/wp-content/plugins/formcraft/file-upload/server/content/files/16130e07692f2c---53550806817.pdfIn PDF document text
- http://pegasomeeting.medcoast.net/ckfinder/userfiles/files/xakelefusazegagu.pdfIn PDF document text
- https://bursac.net/userfiles/file/29600844770.pdfIn PDF document text
- https://www.financedeclined.com.au/wp-content/plugins/formcraft/file-upload/server/content/files/16132be2bdc499---70021414733.pdfIn PDF document text
- https://highlander-inn.com/assets/userfiles/files/69866868029.pdfIn PDF document text
- http://xn--9w3b270a7kf.kr/ckfinder/userfiles/files/73601564805.pdfIn PDF document text
- https://www.akilciilacdernegi.com/ckfinder/userfiles/files/velenamovudagebaxamilizes.pdfIn PDF document text
- http://f1-rennsimulatoren.de/userfiles/file/49446677330.pdfIn PDF document text
- https://gruntbudowa.pl/files/file/nafamul.pdfIn PDF document text
- http://6nergy.fr/6nergy/sites/default/user/file/kazagaxadejonijurex.pdfIn PDF document text
- http://www.highlandmetals.co.za/wp-content/plugins/formcraft/file-upload/server/content/files/161351e80e1ac7---38918922590.pdfIn PDF document text
- http://aksaaydinlatma.com/img/editor/image/file/vodekevuposalakefelutu.pdfIn PDF document text
- https://chongtham68.com/app/webroot/uploads/files/45291804015.pdfIn PDF document text
- https://dubigroup.com/admin/fckeditor/editor/filemanager/connectors/upload/file/gatavuxel.pdfIn PDF document text
- http://www.c-l-r-p.com/admin/ckfinder/userfiles/files/78972458644.pdfIn PDF document text
- http://lookkorea.net/userfiles/file/57617483046.pdfIn PDF document text
- http://erh-hu.com/userfiles/file/tujosebitekobotogata.pdfIn PDF document text
- https://klingende-zeder.de/wp-content/plugins/formcraft/file-upload/server/content/files/1612fc6d386691---12153610280.pdfIn PDF document text
- http://le-lemniscus-incandescent.fr/ckeditor/upload/files/gatiwuxivek.pdfIn PDF document text
- http://futurepoolandspa.com/ckfinder/userfiles/files/lifezugigejawaxoliseputap.pdfIn PDF document text
- http://th-hl.com///upload/files/97268765017.pdfIn PDF document text
- https://www.hasmow.com.au/application/third_party/ckfinder/userfiles/files/gomipamuzitejovabor.pdfIn PDF document text
- http://busto-wl.gattinonimondodivacanze.it/themes/userfiles/files/safedewazuvigozizowarig.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_off0000c740.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xC740 | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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font_01_sfnt_off0000df57.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xDF57 | 10988 bytes |
SHA-256: 36baa95e5c20cf3c219ced541b95f47f0d2958e848ae9efa8bb8a035bc684549 |
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font_02_sfnt_off0000f8e4.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xF8E4 | 17664 bytes |
SHA-256: 218517eecca028904d5f2ba79435b09be6ecf81c0cf5b1b6a8c7b464fc778b67 |
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