MALICIOUS
156
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1203 Exploitation for Client Execution
The PDF file was flagged by multiple heuristics as malicious, including a high ML score and ClamAV detection. It contains a link farm pointing to numerous disposable hosting domains, suggesting an attempt to distribute malicious content or conduct phishing. The presence of external URIs and a link farm indicates a likely spearphishing attachment delivery vector.
Machine Learning
- Nyx PDF Classifier malicious score 0.9947
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 http://ilovestory.com/upload/file/situtareboditonogik.pdf In PDF document text
- http://bagpack.com.np/wp-content/plugins/formcraft/file-upload/server/content/files/16133550cb92f7---50874601265.pdfIn PDF document text
- https://lhorizon.ca/uploadHorizon/file/sirunojo.pdfIn PDF document text
- http://xn--80aikni6a0b.xn--p1ai/images/file/suzufakuso.pdfIn PDF document text
- http://technestudio.eu/userfiles/files/pozagolexenevidi.pdfIn PDF document text
- https://stopserv.ru/files/file/jijoxuduxafuxejoxapomi.pdfIn PDF document text
- http://thekreativecompany.com/uploaded_files/userfiles/files/28996608010.pdfIn PDF document text
- http://sjhtractor.com/d/files/mupapulopisivo.pdfIn PDF document text
- https://weblative.com/wp-content/plugins/super-forms/uploads/php/files/kcftcdl0dumcto6i4adlf4oc3d/nexalelopetikibaparima.pdfIn PDF document text
- http://kronikarp.pl/ckfinder/userfiles/files/62344252462.pdfIn PDF document text
- http://beveragesgs.com/userfiles/file/2273750590.pdfIn PDF document text
- http://yurisolomko.com/userfiles/file/78797487957.pdfIn PDF document text
- http://www.putnamtaxi.net/wp-content/plugins/formcraft/file-upload/server/content/files/16136e71fbdc13---50584577990.pdfIn PDF document text
- http://pn-tech.net/userData/board/file/kukaminoni.pdfIn PDF document text
- https://realwebguys.com/wp-content/plugins/formcraft/file-upload/server/content/files/16138b1da397a2---loxanigero.pdfIn PDF document text
- http://tahi.hu/ckfinder/userfiles/files/79246807999.pdfIn PDF document text
- http://kustari.net/userfiles/file/95963277918.pdfIn PDF document text
- https://menlopark.com/wysiwygfiles/file/3537118161.pdfIn PDF document text
- http://willtorock.com/wp-content/plugins/formcraft/file-upload/server/content/files/161364cf965e64---70058883014.pdfIn PDF document text
- http://uekekb.ru/!upload/files/dirozorutumukital.pdfIn PDF document text
- http://otvorene-srdce.sk/userfiles/file/pevurenelunaf.pdfIn PDF document text
- http://dailythang.com/userfiles/files/kogavu.pdfIn PDF document text
- http://iamsong.vn/uploads/files/6960696429.pdfIn PDF document text
- http://phutungquanghieu.com/app/webroot/files/ckfinder/files/89903357717.pdfIn PDF document text
- http://chono.mn/uploads/userfiles/files/jerukixoxumu.pdfIn PDF document text
- https://feedproxy.google.com/~r/skout/mBVl/~3/BkSY9tpko7c/uplcv?utm_term=world+of+chemistry+textbook+pdfPDF link annotation
- 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_off0000c1a3.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xC1A3 | 11060 bytes |
SHA-256: 9f113b68ce578f60684b90888b088f8a7d895852d0bc506e3afc08eca8fa2ac4 |
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font_01_sfnt_off0000db35.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xDB35 | 17056 bytes |
SHA-256: b326071d057432ceabd55b0f060f0baf80692819b18fd06d234f6a786e3d0d32 |
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font_02_sfnt_off0001069d.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x1069D | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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