MALICIOUS
156
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1203 Exploitation for Client Execution
This PDF file was flagged by a machine learning classifier and ClamAV as malicious, specifically as a phishing trojan. It contains numerous embedded URLs, many of which point to compromised WordPress sites or disposable hosting, suggesting a link farm designed to distribute malicious content or phish users. The presence of multiple external URIs and a link farm heuristic indicates a strong intent to redirect the user to external, potentially harmful, resources.
Machine Learning
- Nyx PDF Classifier malicious score 0.9964
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://irlanc.ru/uplcv?utm_term=somewhere+over+the+rainbow+chords+ukulele+pdf PDF link annotation
- https://backcountryplayground.com/wp-content/plugins/super-forms/uploads/php/files/400b16b3e9fce396e47e4d2301949b66/30237211093.pdfIn PDF document text
- https://1000families.eu/userfiles/file/94893210645.pdfIn PDF document text
- https://anakmeong.com/contents/files/lasaw.pdfIn PDF document text
- http://dreambeauty.kr/upload/fckeditor/file/54827087508.pdfIn PDF document text
- http://www.larucheapain.fr/ljk/file/regubibudaxidugijubud.pdfIn PDF document text
- https://www.pharmaright.ca/wp-content/plugins/super-forms/uploads/php/files/sm0om0ghs7e3n554680cqq88tu/wuwopadowolitez.pdfIn PDF document text
- http://www.biogreeno.com/cms/ckfinder/userfiles/files/laxerep.pdfIn PDF document text
- https://ms01bet.com/contents/files/24566482395.pdfIn PDF document text
- https://millersexpress.com/userfiles/file/12604937204.pdfIn PDF document text
- http://inter-travel.hu/_user/file/29314142642.pdfIn PDF document text
- https://hoovermaids.com/wp-content/plugins/super-forms/uploads/php/files/9dcb6588ffb7a2cd392800bfabdffc73/51879836852.pdfIn PDF document text
- http://qapoll.com/2015/vat/upload/files/48880063975.pdfIn PDF document text
- http://ltpbetel.ro/userfiles/file/felij.pdfIn PDF document text
- http://www.pantonerestauri.com/ckfinder/userfiles/files/43373003086.pdfIn PDF document text
- http://www.luminicaambiental.com/wp-content/plugins/formcraft/file-upload/server/content/files/1613c2a8e017d5---liwifo.pdfIn PDF document text
- http://stonestudio.pl/files/upload/file/fazonegigotanumaboli.pdfIn PDF document text
- http://orderbestwings.com/uploads/files/26221032725.pdfIn PDF document text
- http://studioagronomoserragiotto.eu/userfiles/files/wilogapusopuw.pdfIn PDF document text
- https://treasurehunterdetectors.com/ckfinder/userfiles/files/roxufofafevigetuzelegozu.pdfIn PDF document text
- http://surtek.biz/image/files/20150319_095639.pdfIn PDF document text
- https://auto826.vnpec.xyz/uploads/files/70102068474.pdfIn PDF document text
- https://textmakareknutsson.se/upload/image/78011979119.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_off0000dfdc.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xDFDC | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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font_01_sfnt_off0000f7ee.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xF7EE | 22408 bytes |
SHA-256: 79b140c046d09cff7a5d9f765b0453ff185e54d002a7fbfe33457c911ca7b2dc |
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font_02_sfnt_off000132ca.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x132CA | 11444 bytes |
SHA-256: e8da99355dc317dfb3c2b480fa2245d4772c8a412c5d39497a5d0248f5c72921 |
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