MALICIOUS
156
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1204.002 Malicious Link
The PDF file was flagged by ML classifiers and ClamAV as malicious, specifically as a phishing trojan. It contains numerous embedded URLs, many of which point to compromised CMS upload storage or disposable hosting, forming a link farm. The presence of these links suggests an attempt to lure users to external sites, likely for credential harvesting or further malware delivery.
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://kaptenhoki.com/contents/files/5173456866.pdf In PDF document text
- http://www.naraihillgolf.com/admin/userfiles/file/novobigemetiriratif.pdfIn PDF document text
- http://baiduvpn.com/upload/files/tujonibulimo.pdfIn PDF document text
- https://www.bouwenaaneensterkwerkgeversmerk.nl/wp-content/plugins/formcraft/file-upload/server/content/files/16134d60bab9de---vipikizarasufalanaru.pdfIn PDF document text
- http://teraval.cz/res/file/52505855543.pdfIn PDF document text
- http://fkm-lux.by/var/upload/file/90698029708.pdfIn PDF document text
- https://rcvizovice.cz/ckfinder/userfiles/files/85798642369.pdfIn PDF document text
- https://giritrademark.com/content_files/files/vazuziderununezejizixu.pdfIn PDF document text
- http://kayapalinakliyat.com/file/romozejugaki.pdfIn PDF document text
- http://jakspravnenapsa.cz/userfiles/file/30181605748.pdfIn PDF document text
- https://hacunamatata.ru/wp-content/plugins/super-forms/uploads/php/files/5286b78367052b973be1d971f25bac76/19669707013.pdfIn PDF document text
- http://protectakoteasia.com/ckfinder/userfiles/files/71809453362.pdfIn PDF document text
- https://paloaltospeakerseries.com/wp-content/plugins/super-forms/uploads/php/files/6f57964580d9a44bf7f85f4b8696a7d1/44498554602.pdfIn PDF document text
- http://universalthailand.com/images/uploads/ckfinder/files/suzefivileluz.pdfIn PDF document text
- https://fleschimmo.lu/userfiles/files/vexegabafefeletil.pdfIn PDF document text
- http://bige.vn/uploads/userfiles/file/5248500777.pdfIn PDF document text
- https://amesmedicalservices.com/wp-content/plugins/formcraft/file-upload/server/content/files/16137b07a0a5fb---89263427166.pdfIn PDF document text
- http://assushop.com/userfiles/assushop.com/file/tixuzesubiruxamunogawana.pdfIn PDF document text
- http://gardatrans.com/content/Files/97874850781.pdfIn PDF document text
- https://www.solucionaesp.com/ckfinder/userfiles/files/livexalulonaponegapiluja.pdfIn PDF document text
- http://pokorny-podlahy.cz/UserFiles/File/23896330831.pdfIn PDF document text
- http://vin-baietii.ro/ckfinder/userfiles/files/9256588200.pdfIn PDF document text
- https://feedproxy.google.com/~r/skout/mBVl/~3/3CAf4wW3hvY/uplcv?utm_term=promo+codes+for+robux+2021PDF 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_off0000be4c.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xBE4C | 17176 bytes |
SHA-256: 3c2ecbfe3b4f0a81aaf259e7bea1a9ab7bfa26d5db3d51b69fa4c7c538cf36f2 |
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font_01_sfnt_off0000eb51.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xEB51 | 10772 bytes |
SHA-256: 5db095906b6bb0df2a863edd4c127c244a2fe90643cf7100ce9ee26201557563 |
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font_02_sfnt_off00010441.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x10441 | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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