MALICIOUS
156
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
The file was detected as malicious by ML classifiers and ClamAV, indicating a high likelihood of malicious intent. It contains numerous external URLs, many of which are part of link farms hosted on disposable or compromised domains, suggesting a phishing or SEO poisoning attack. The PDF structure and embedded URLs point towards an attempt to redirect users to malicious content.
Machine Learning
- Nyx PDF Classifier malicious score 0.9990
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://pixomot.ru/uplcv?utm_term=glenohumeral+joint+subluxation PDF link annotation
- http://dienlanhtruongson.com/upload/files/86674753571.pdfIn PDF document text
- https://wspaperbag.com/userfiles/file/19859830905.pdfIn PDF document text
- http://ukonlinedirect.com/userfiles/files/kipufimupal.pdfIn PDF document text
- http://good163.cn/Uploadfiles/files/10037590209.pdfIn PDF document text
- https://gonguyenkhoi.vn/upload/files/81211623830.pdfIn PDF document text
- http://www.sloepverhuur-debiesbosch.nl/upload/files/79937153322.pdfIn PDF document text
- http://ternovykh.ru/content/file/merejolatisonilijuwi.pdfIn PDF document text
- https://semangkamerah.com/contents/files/73437150727.pdfIn PDF document text
- https://readandenjoy.ae/userfiles/files/wipitogaguzubib.pdfIn PDF document text
- http://baominhlabors.com/upload/files/61190410529.pdfIn PDF document text
- http://lookupagency.es/wp-content/plugins/formcraft/file-upload/server/content/files/16159db7e83bd3---powuraduxedes.pdfIn PDF document text
- http://steclotildehorton.ca/wp-content/plugins/formcraft/file-upload/server/content/files/16132b1f5ebc08---surer.pdfIn PDF document text
- https://giolog.biz/images/bulk_images/files/wuvadajesuviwuv.pdfIn PDF document text
- http://the-bom.kr/upfile/files/gexefokijuzitokepixebe.pdfIn PDF document text
- http://pivotal-technologies.com/userfiles/file/kaziwavajofawufajor.pdfIn PDF document text
- http://precisao.org/files/files/kawinipulerejoretomanuvif.pdfIn PDF document text
- http://manhchenang.vn/webroot/img/files/vufum.pdfIn PDF document text
- https://www.vigo.co.za/wp-content/plugins/formcraft/file-upload/server/content/files/1614900857391b---loboxijojoworebave.pdfIn PDF document text
- http://sasolution.kr/userfiles/file/58695838654.pdfIn PDF document text
- http://rewitex.pl/userfiles/file/wogiwomudasotobap.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_off0000bd91.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xBD91 | 17700 bytes |
SHA-256: 87d16199b645bc6bf42afad99a71a7c58519dd0908001fbc25fad69165e9338a |
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font_01_sfnt_off0000eb64.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xEB64 | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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font_02_sfnt_off0001037b.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x1037B | 10884 bytes |
SHA-256: 801d629b189075a106ea9732b343f1cac0a22ce70480b8cdfd7e59d3fa3a4835 |
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