MALICIOUS
156
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
The file was detected as malicious by ML classifiers and ClamAV, indicating a high likelihood of malicious intent. It contains numerous external links, many pointing to compromised CMS upload directories and disposable hosting, suggesting a link farm designed to redirect users. The presence of PDF-specific heuristics like 'PDF_SEO_DISPOSABLE_LINK_FARM' and 'PDF_COMPROMISED_CMS_UPLOAD_LINK_FARM' strongly supports this attack pattern. No scripts were extracted, but the PDF structure itself is used to host and present these malicious links.
Machine Learning
- Nyx PDF Classifier malicious score 0.9974
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://ketchas.ru/uplcv?utm_term=platinum+natural+science+grade+5+textbook+pdf PDF link annotation
- http://studiogallerani.it/userfiles/files/gulegikikebiwefutuga.pdfIn PDF document text
- http://cfacgroup.com/uploads/FCK_files/file/vunovo.pdfIn PDF document text
- https://ratsimae.ee/media/contents/file/kojovaxawalumawe.pdfIn PDF document text
- https://amagi.la/wp-content/plugins/formcraft/file-upload/server/content/files/16092ad16bb94a---josovib.pdfIn PDF document text
- https://shinyjewellers.com/wp-content/plugins/super-forms/uploads/php/files/c8givv1npq1pe1m0c12smec722/fedufatijipule.pdfIn PDF document text
- http://makaeximworld.com/wp-content/plugins/formcraft/file-upload/server/content/files/160a40e66ad309---54053341859.pdfIn PDF document text
- https://www.marthatrotts.ca/wp-content/plugins/formcraft/file-upload/server/content/files/160c889976fa99---lujutemofanuvufogutako.pdfIn PDF document text
- https://horacebatten.com/ckfinder/userfiles/files/90241226229.pdfIn PDF document text
- https://loan-financial.com/wp-content/plugins/super-forms/uploads/php/files/ae1c82eec747a44b88efeaca113f2f56/javedi.pdfIn PDF document text
- http://www.mondzorgvesa-voorschoten.nl/wp-content/plugins/formcraft/file-upload/server/content/files/1609e9a88eb7e7---52692214724.pdfIn PDF document text
- http://mfplus.ba/wp-content/plugins/formcraft/file-upload/server/content/files/1606f0d5ab0cc9---23725733558.pdfIn PDF document text
- http://location-venise.com/italie_documents/files/6391042596.pdfIn PDF document text
- http://camwater.org/media/files/24051387747.pdfIn PDF document text
- http://dulichgiahy.com/upload/file/napefizovimowemerawa.pdfIn PDF document text
- http://beetsom.com/PROGRAM_FCKeditor_UserFiles/file/343551234609ce47249a5a.pdfIn PDF document text
- http://www.truca-taoules.com/ckfinder/userfiles/files/bakuwagefaxunekavi.pdfIn PDF document text
- https://toromecanicorodeo.com/files/pukewujamelaje.pdfIn PDF document text
- http://yaqeen-eg.com/userfiles/file/bufesiwemimewejegi.pdfIn PDF document text
- http://vtvxm.vn/userfiles/file/newowakefakidawo.pdfIn PDF document text
- http://soflocops.org/clients/83264/File/22795943366.pdfIn PDF document text
- https://transmar.biz/ckfinder/userfiles/files/61513298122.pdfIn PDF document text
- https://utilitydiscount.com/wp-content/plugins/formcraft/file-upload/server/content/files/16086204815ea7---21271539250.pdfIn PDF document text
- https://tocgia247.com/wp-content/plugins/super-forms/uploads/php/files/d92nm4sv4oqkrbf0mdc6vt5l4p/sesexuxulolifuzanomel.pdfIn PDF document text
- http://www.allatpatikapecs.hu/images/file/kukilir.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_off0000db53.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xDB53 | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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font_01_sfnt_off0000f365.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xF365 | 18640 bytes |
SHA-256: be5be29cfa0c79a4a1a8e8f65400ad33aa8d592b535832c90ee3eaf243a3f406 |
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font_02_sfnt_off00012473.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x12473 | 11532 bytes |
SHA-256: d94eef5e9c5a97559dbd72eaad7cfde85d9a1b52f9b10f878d10d6380240327d |
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