MALICIOUS
156
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1204.002 Malicious Link
The PDF contains a link farm with numerous URLs pointing to disposable hosting, a common tactic for distributing malware. Heuristics indicate the presence of compromised CMS upload storage and a link farm designed for SEO manipulation. The ML classifier and ClamAV detection strongly suggest malicious intent, likely phishing or malware distribution.
Machine Learning
- Nyx PDF Classifier malicious score 0.9846
Heuristics 6
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ClamAV: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0 critical CLAMAV_DETECTIONClamAV detected this file as malware: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0
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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 http://ruresept.ru/files/file/kaxizeb.pdf
- https://hanahana.vn/media/ftp/file/76573077710.pdf
- http://phillipsbricksalumni.com/clients/56168/File/52432218258.pdf
- http://manufim.co.il/wp-content/plugins/formcraft/file-upload/server/content/files/1609b0485dd465---59815056731.pdf
- http://www.monts.sk/upload_images/file/daliku.pdf
- http://webscape.co.bw/wp-content/plugins/formcraft/file-upload/server/content/files/160c1482431fa0---lutadunumikad.pdf
- http://cerezolorente.com/files/cerezolorente/_repo/file/7809252171.pdf
- http://busanpc1.com/upload/fckeditor/file/wadenuwaka.pdf
- https://divorcioconsensual.com.br/wp-content/plugins/super-forms/uploads/php/files/2f294eac429bb87eddde497a01407a84/29997596482.pdf
- https://rcot.org/userfiles/file/terizufafederola.pdf
- https://rivaflo-south.in/userfiles/files/81297919297.pdf
- https://precisionautoandac.com/wp-content/plugins/super-forms/uploads/php/files/e0241178f54f027d86aedcc1cc246f57/bewuwubopox.pdf
- http://www.ncstarim.com.tr/wp-content/plugins/super-forms/uploads/php/files/8fjibehnbq069o6q0561ncg112/tebodujebiledipe.pdf
- https://fiambreszav.com/wp-content/plugins/super-forms/uploads/php/files/767a329dcbd9a6ebad931965cece7e3f/23684659366.pdf
- https://www.denisonlandscaping.com/wp-content/plugins/formcraft/file-upload/server/content/files/160c5bed703845---23014222933.pdf
- http://erbilsunhotel.com/wp-content/plugins/super-forms/uploads/php/files/jvdjc22bd9rb9pmo942nb76j55/xemujatigalolokupizugibak.pdf
- http://grani-tonkogo-mira.ru/wp-content/plugins/super-forms/uploads/php/files/84806f5b82130669897fd72050bcd19d/tivepa.pdf
- http://zadonskiy.ru/wp-content/plugins/formcraft/file-upload/server/content/files/1607472fdefa70---tojiti.pdf
- http://cgt-fo-csc.fr/wp-content/plugins/formcraft/file-upload/server/content/files/1607fd781efccc---bigilelopokif.pdf
- http://zabradli-znerezu.cz/userfiles/file/fefawelu.pdf
- http://tutek.eu/userfiles/file/rinupebajonugagarevo.pdf
- https://www.golddustdental.com/wp-content/plugins/formcraft/file-upload/server/content/files/160a132e0286e1---pivejoronajut.pdf
- https://championsforchildren.org/wp-content/plugins/super-forms/uploads/php/files/8f83c56377a512a3db4c6404fe0c5f1e/kunobedu.pdf
- http://www.loockuniformes.com.br/home/wp-content/plugins/formcraft/file-upload/server/content/files/160c52b440ad9f---kozupobibulitozofakut.pdf
- https://sharidendesignasphalt.com/wp-content/plugins/super-forms/uploads/php/files/c5761efe0fbe971891e34259511207d6/39462980861.pdf
- http://driver-jazda.pl/upload/file/22087720110.pdf
- https://feedproxy.google.com/~r/1eyvgo/aqOO/~3/Om9ozkHLxGw/uplcv?utm_term=pdf+to+word+document+editable
- http://www.w3.org/1999/02/22-rdf-syntax-ns#
- http://purl.org/dc/elements/1.1/
- http://ns.adobe.com/pdf/1.3/
- http://ns.adobe.com/xap/1.0/
- http://ns.adobe.com/xap/1.0/mm/
- http://ns.adobe.com/xap/1.0/rights/
- http://dejavu.sourceforge.net
- http://dejavu.sourceforge.net/wiki/index.php/License
Extracted artifacts 3
Files carved from inside the sample during analysis.
| Filename | Kind | Source | Size |
|---|---|---|---|
font_00_sfnt_off0000dadf.bin9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xDADF | 16792 bytes |
font_01_sfnt_off0000f2f1.bin6d79b468849e4a3b1857602537854b16b029c1f645ee32c409fbabc9b898d07c |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xF2F1 | 16660 bytes |
font_02_sfnt_off00011e6b.bin41479ccd53c6fc9a5a00f0b75f880a4e4a8e3b59fe6477fa96bffdac56d0662f |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x11E6B | 10796 bytes |
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