MALICIOUS
156
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
The PDF contains a link farm with numerous URLs pointing to compromised WordPress sites and disposable hosting, suggesting a phishing or malware distribution attempt. The ML classifier and ClamAV detection strongly indicate malicious intent. While no scripts were explicitly extracted, the PDF structure and embedded URLs are indicative of a malicious document, likely intended to redirect users to malicious content.
Machine Learning
- Nyx PDF Classifier malicious score 0.9980
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://krisoc.ru/uplcv?utm_term=how+to+install+spymyfone PDF link annotation
- http://cnex.cc/images/blog/file/36689315729.pdfIn PDF document text
- http://phuclocvienjsc.com/uploads/image/files/luvosuvonalusabuxifuva.pdfIn PDF document text
- http://asztalosweb.hu/userfiles/file/kajogedifutamiberexokubup.pdfIn PDF document text
- http://allier-genealogie.org/File:/24240973093.pdfIn PDF document text
- https://tttinox.com/upload/userfiles/files/furuwabinuxudoluwemenaf.pdfIn PDF document text
- https://avenirpourtous.fr/wp-content/plugins/formcraft/file-upload/server/content/files/1613c480109248---72044443724.pdfIn PDF document text
- http://lisaarkinlaw.com/customer/3/d/9/3d947ad6ce2568d98b832ccf5548371bFile/bimofowozepe.pdfIn PDF document text
- https://interativacorretora.com/fotosempresa/files/41135807498.pdfIn PDF document text
- http://labonscafe.com/userfiles/59972505383.pdfIn PDF document text
- http://baovevietnam-vnss.com/upload/file/73890117137.pdfIn PDF document text
- http://ingegneriarossi.it/userfiles/files/sevakoboxujamixukemegise.pdfIn PDF document text
- http://bimbrlata.cz/UserFiles/File/56666164881.pdfIn PDF document text
- http://ersenergy.com/UserFiles/file/vukukapexoko.pdfIn PDF document text
- https://ewastexperts.com/userfiles/files/vediwojiz.pdfIn PDF document text
- https://abhimaninteriors.com/ckfinder/userfiles/files/73862901176.pdfIn PDF document text
- https://deconkhoemanh.com/wp-content/plugins/super-forms/uploads/php/files/n1qdbp164vitejeurjdf5dctl7/5686634342.pdfIn PDF document text
- https://www.karavanlakesfet.com/wp-content/plugins/super-forms/uploads/php/files/392311dfedcfb0b6ed2e820822c71bdf/23557426640.pdfIn PDF document text
- http://jamesandsons.ca/userfiles/file/rebulakupawidino.pdfIn PDF document text
- http://shtaket46.ru/page_edit/_samples/userfiles/files/bubap.pdfIn PDF document text
- http://rulife.ru/ckfinder/userfiles/files/nodubi.pdfIn PDF document text
- http://xn--12cbg9dihj7egda2g6a7dceb1d2cp4nvgf4f.com/datas/files/xobuduziziroguki.pdfIn PDF document text
- http://getawaynewzealand.co.nz/wp-content/plugins/formcraft/file-upload/server/content/files/16131b9872a0c0---muzezejijepifovotuvin.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_off0000c78d.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xC78D | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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font_01_sfnt_off0000df9f.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xDF9F | 15912 bytes |
SHA-256: 576cad3eaffb03f960ccf6e86b4fa43d9de9cad0db956ebfe95e59fd4882272e |
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font_02_sfnt_off00010884.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x10884 | 10612 bytes |
SHA-256: 3ef0b3d97a46b3034918f353b89214b712084ad60497bd9e705ba489944537de |
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