MALICIOUS
244
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1059.007 JavaScript
This PDF file was flagged by multiple heuristics as malicious, including a critical finding for linking to known malicious redirector infrastructure. The document contains a large number of external links, many hosted on disposable domains, suggesting a link farm used for phishing or malware distribution. The ClamAV detection and ML classifier further support its malicious nature.
Machine Learning
- Nyx PDF Classifier malicious score 0.9998
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 links to known malicious redirector infrastructure critical PDF_MALICIOUS_REDIRECTOR_LINKPDF contains a clickable URI to redirector infrastructure used by a known malicious PDF SEO/adware delivery campaign. These documents typically rely on user interaction and redirect chains rather than a PDF parser vulnerability.
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Small PDF contains mass external PDF link farm critical PDF_SEO_LINK_FARMSmall PDF contains many clickable external PDF links, mostly clustered on one host. This matches generated SEO/link-farm PDF carriers used to route users into malicious or unwanted-software delivery chains, rather than a normal document citation pattern.
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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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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://dafemum.ru/award?keyword=digestive+system+organs+and+their+functions+pdf In PDF document text
- https://cdn-cms.f-static.net/uploads/4459164/normal_60152d6996acb.pdfIn PDF document text
- https://static.s123-cdn-static.com/uploads/4410953/normal_5fe0c6341a67e.pdfIn PDF document text
- https://cdn.sqhk.co/bamikalagov/ibatJ1s/12743232488.pdfIn PDF document text
- https://kewojuposadut.weebly.com/uploads/1/3/4/3/134374438/552413.pdfIn PDF document text
- https://cdn.sqhk.co/dasadogiso/tJzhi5R/jifotirasovasobutefel.pdfIn PDF document text
- https://cdn-cms.f-static.net/uploads/4366375/normal_604f9058dea42.pdfIn PDF document text
- https://cdn-cms.f-static.net/uploads/4495271/normal_5fe7668e3639d.pdfIn PDF document text
- https://cdn-cms.f-static.net/uploads/4404488/normal_60297d0bbd904.pdfIn PDF document text
- https://jivowewowigopap.weebly.com/uploads/1/3/1/6/131606746/e989be832.pdfIn PDF document text
- https://zetojaxonafavop.weebly.com/uploads/1/3/5/3/135309172/mubasegalomeb.pdfIn PDF document text
- https://cdn.sqhk.co/dunuxorigu/hgjgwvE/sibogulokar.pdfIn PDF document text
- https://cdn-cms.f-static.net/uploads/4470027/normal_601f2483f1c84.pdfIn PDF document text
- https://cdn-cms.f-static.net/uploads/4379377/normal_6022c19976f7b.pdfIn PDF document text
- https://vibakifekapob.weebly.com/uploads/1/3/1/3/131398015/tarepezitawobusi.pdfIn PDF document text
- http://www.ascendercorp.com/In PDF document text
- http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
- https://uploads.strikinglycdn.com/files/76754d71-23f2-41a5-a7d4-3846653dc709/nate_the_great_books_series.pdfIn PDF document text
- https://uploads.strikinglycdn.com/files/d08679d7-0ae7-44e2-8ff1-ed5d0cc576e9/salary_of_philippine_air_force.pdfIn PDF document text
- https://uploads.strikinglycdn.com/files/b91d10bb-6bc9-40b9-aecb-49e90327f97a/craftsman_1_3_hp_2_gallon_portable_air_compressor.pdfIn PDF document text
- https://uploads.strikinglycdn.com/files/a3722e2d-a45c-4510-937f-cc8be8381428/bose_av3-2-1_ii_media_center.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://scripts.sil.org/OFLIn PDF document text
Extracted artifacts 2
Files carved from inside the sample during analysis.
| Filename | Kind | Source | Size |
|---|---|---|---|
font_00_sfnt_off0000e967.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xE967 | 5700 bytes |
SHA-256: f595cb822d4efa2c64c9e22a9d2ec3c2ec4ac69aea0580d918547ef881ec1c7e |
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font_01_sfnt_off0000fcbb.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xFCBB | 10720 bytes |
SHA-256: 5a25dd16d4a8588d15f7cb87a3c2e17ef740af917bd87aab04051755ded88df0 |
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