MALICIOUS
156
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1059.007 JavaScript
This PDF file was flagged by ClamAV as Pdf.Phishing.Trojan and an ML classifier indicated a high probability of maliciousness. The document contains numerous embedded URLs, many of which point to compromised CMS uploads or disposable hosting, suggesting a link farm designed to redirect users to malicious sites. The presence of these links and the overall structure strongly indicate a phishing or malware distribution attempt.
Machine Learning
- Nyx PDF Classifier malicious score 0.9982
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://synerhu.ru/uplcv?utm_term=partial+fraction+decomposition+exercises+with+answers+pdf PDF link annotation
- https://luminex.pl/upload/file/lezinitefeketebujejafar.pdfIn PDF document text
- http://ylgems.com/file_media/file_image/file/7987881356.pdfIn PDF document text
- http://aquamedia.cn/ckfinder/userfiles/files/53897177964.pdfIn PDF document text
- https://almoheetmanpower.com/public_html/userfiles/file/34173159531.pdfIn PDF document text
- http://enjoybowlramenandpoke.com/uploads/files/sewobegagadefisobu.pdfIn PDF document text
- https://churchofgodinjamaica.org/app/webroot/files/sasaki.pdfIn PDF document text
- http://huyminhplastic.com/upload/files/94595786542.pdfIn PDF document text
- https://amesmedicalservices.com/wp-content/plugins/formcraft/file-upload/server/content/files/1608807d88ba0a---sumokovapomekuwa.pdfIn PDF document text
- https://cremeconferences.com/wp-content/plugins/super-forms/uploads/php/files/9ae2b413d647ddd82ee033f2c95bb0d5/7531387897.pdfIn PDF document text
- https://metroguards.com.au/wp-content/plugins/formcraft/file-upload/server/content/files/1606cd04a4cbe8---62593663015.pdfIn PDF document text
- https://www.mclarenpress.com/wp-content/plugins/formcraft/file-upload/server/content/files/160a30a9a824e5---kukorusunamoribopi.pdfIn PDF document text
- http://structurecreative.com/wp-content/plugins/formcraft/file-upload/server/content/files/160a129ae52dff---20062382398.pdfIn PDF document text
- https://www.pferde-fuer-unsere-kinder.de/wp-content/plugins/formcraft/file-upload/server/content/files/1607ff4d187bc3---30269507198.pdfIn PDF document text
- https://satesayap.com/contents/files/26143507869.pdfIn PDF document text
- http://tpdw.pl/userfiles/file/totepalugitu.pdfIn PDF document text
- https://www.kngroup.com/wp-content/plugins/formcraft/file-upload/server/content/files/1608f19093d3b7---dumoluxupo.pdfIn PDF document text
- http://panda-es.tokyo/yamituki-n/uploads/files/48391506618.pdfIn PDF document text
- http://ordineveterinarivenezia.eu/userfiles/files/21611762064.pdfIn PDF document text
- http://scoopsites.net/userfiles/file/zibadufitopejawidudoki.pdfIn PDF document text
- http://brooklynsmokeshops.com/admin/images/file/23057733613.pdfIn PDF document text
- http://bakoca.hu/files/file/40999464505.pdfIn PDF document text
- https://adiwirawanbali.com/wp-content/plugins/super-forms/uploads/php/files/8a15d693d6d4bb197183da856d1787c5/4015297206.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_off0000b5b2.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xB5B2 | 15716 bytes |
SHA-256: 4af38e16436b446f856959c4b4f567af894a2f80bf86a6723a260916cd551ba0 |
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font_01_sfnt_off0000ddb4.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xDDB4 | 11076 bytes |
SHA-256: 731601bdad8a7fa207b1268f8488861412e88a618e86d240f5f62ce53a6ae758 |
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font_02_sfnt_off0000f75f.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xF75F | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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