MALICIOUS
156
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1059.007 JavaScript
The PDF file was flagged by ClamAV as Pdf.Phishing.Trojan and a machine learning classifier indicated a high probability of maliciousness. Heuristics identified it as a link farm, with many URLs pointing to compromised WordPress sites and disposable hosting, suggesting a phishing or malware distribution scheme. The presence of embedded URLs and the nature of the heuristics strongly indicate an attempt to redirect users to malicious content.
Machine Learning
- Nyx PDF Classifier malicious score 0.9860
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=android+auto+add+more+apps PDF link annotation
- https://tkpmission.org/wp-content/plugins/formcraft/file-upload/server/content/files/1613c020598987---54844593101.pdfIn PDF document text
- http://czminghe.com/upload/files/watumeretadore.pdfIn PDF document text
- https://apatity.verlauf-ekb.ru/admin/ckfinder/userfiles/files/60566794032.pdfIn PDF document text
- http://yaan121.com/uploads/files/202109050354148320.pdfIn PDF document text
- https://www.pharmaright.ca/wp-content/plugins/super-forms/uploads/php/files/cmh9tq0ai30a2o93bbkhuffd8a/52383586987.pdfIn PDF document text
- http://llux.vn/uploads/files/tuvazojabo.pdfIn PDF document text
- https://xuanhongkhang.com/upload/files/88437288498.pdfIn PDF document text
- http://olympusflights.com/files/files/73476270133.pdfIn PDF document text
- https://www.bocamvigliesrooms.com/wp-content/plugins/super-forms/uploads/php/files/d4e21da8a958f3670980face57d43ff3/50549735957.pdfIn PDF document text
- http://classicalgardenornaments.com/uplds/file/tijidosesapukadilipuwo.pdfIn PDF document text
- http://bebaldebaran.eu/userfiles/files/19466542280.pdfIn PDF document text
- http://marymo.ru/uploads/files/xudidusitesirajarulabuj.pdfIn PDF document text
- https://www.twibiotech.com/plugin/ce1/ckfinder/userfiles/files/37164150073.pdfIn PDF document text
- http://aytekinpolatel.com/image/files/kanido.pdfIn PDF document text
- http://futimisdev.com/userfiles/file/2288446664.pdfIn PDF document text
- https://terrebleue.org/userfiles/file/1696713602.pdfIn PDF document text
- http://www.saraviation.com/wp-content/plugins/formcraft/file-upload/server/content/files/1613f3d9ace084---55117530777.pdfIn PDF document text
- https://immo-cjeanpaul.lu/userfiles/files/xidiwojojele.pdfIn PDF document text
- http://master-vin.ru/files/file/linodeziboxebezumij.pdfIn PDF document text
- http://wintec-samu.hu/uploads/files/fenagajefuz.pdfIn PDF document text
- http://fotofolliasanlazzaro.it/userfiles/files/66333422673.pdfIn PDF document text
- https://kermiradiatoriai.lt/images/files/66892206245.pdfIn PDF document text
- http://kibbkw.com/uploads/files/futefipevidezawejal.pdfIn PDF document text
- https://binarbaidequipment.com/public_html/userfiles/file/nepexabejap.pdfIn PDF document text
- http://gpe-el.pro/ckfinder/userfiles/files/14508951775.pdfIn PDF document text
- http://tuzoltosagmihald.hu/userfiles/file/lefefopivemuk.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_off0000e9ae.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xE9AE | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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font_01_sfnt_off000101c0.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x101C0 | 18128 bytes |
SHA-256: f4ff3022b72e1b230c4f7c8bd9465d51503b9974f214550215511c6823fa69ea |
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font_02_sfnt_off00013050.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x13050 | 10588 bytes |
SHA-256: 0917cb1151a716cef357c985b6954bbbb4ebc6b9620c83d9cb2cac7cc0015716 |
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