MALICIOUS
186
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1059.007 JavaScript
The PDF file was detected as malicious by ClamAV and an ML classifier, indicating a high probability of malicious intent. It contains a significant number of external links, with one pointing to a suspicious URL that appears to be part of a link farm or phishing campaign. The presence of embedded URLs and the PDF_SEO_LINK_FARM heuristic further support this assessment.
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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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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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://mezovuduw.ru/strik?utm_term=the+maze+runner+explained+reddit PDF link annotation
- https://cdn-cms.f-static.net/uploads/4373526/normal_6021edd78010d.pdfIn PDF document text
- https://static.s123-cdn-static.com/uploads/4413578/normal_6005bf54ce483.pdfIn PDF document text
- https://static.s123-cdn-static.com/uploads/4496810/normal_5ffb85c9a3d60.pdfIn PDF document text
- http://www.ascendercorp.com/In PDF document text
- http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
- https://e0a971b2-7104-4718-9e5f-4f17d768618f.filesusr.com/ugd/6d43b6_7be652189b794af892313c1f2018fe34.pdf?index=trueIn PDF document text
- https://uploads.strikinglycdn.com/files/5c2da061-4dc6-44fc-947a-37cf01471c83/pixabexuwaxiposefuduguz.pdfIn PDF document text
- https://uploads.strikinglycdn.com/files/a639d23e-82b5-4972-a603-9a704aa60820/wixisuje.pdfIn PDF document text
- https://3d7c42e8-cad9-4196-8f3c-0f210fd97588.filesusr.com/ugd/1b7c00_a3801e1472f447a1b1ca092acad3d42d.pdf?index=trueIn PDF document text
- https://uploads.strikinglycdn.com/files/e314653b-ed3e-4748-9873-2a497c845301/100_free_short_stories_in_english_for_esl_learners.pdfIn PDF document text
- https://s3.amazonaws.com/jiwotarotavuz/44528319047.pdfIn PDF document text
- https://2e6726a7-2e78-456a-9fa1-8bc85c3b20a6.filesusr.com/ugd/76e31d_f60f7909bc4c4d76aa5cd1dfaeb10ebe.pdf?index=trueIn PDF document text
- https://80b1f93a-fe74-4439-a81d-34814fa7a505.filesusr.com/ugd/e56fe2_326e8769c2f14255bda364fbc364226f.pdf?index=trueIn PDF document text
- https://uploads.strikinglycdn.com/files/c6164999-30f4-4e88-9da4-a6a9da409c05/fafimuvepapukupop.pdfIn PDF document text
- https://s3.amazonaws.com/tobito/museum_guided_tours_singapore.pdfIn PDF document text
- https://50b7e5d6-ab0e-41ff-bbcb-47d024e5c277.filesusr.com/ugd/45d8ab_274c798cde2b4b2393a73e169a35f6d8.pdf?index=trueIn PDF document text
- https://a26b494c-4f54-4b9d-aaa3-e02d462d315a.filesusr.com/ugd/c6268f_8ab9453594af400e8e4d3f072472eacf.pdf?index=trueIn PDF document text
- https://c8a164a7-2549-4056-b209-d27d417f800b.filesusr.com/ugd/136d3d_2ceb37d6fad2455c9b410c294a6f57c2.pdf?index=trueIn PDF document text
- https://af18ad75-7652-4b25-b9e0-8da5fded0af1.filesusr.com/ugd/529385_43c08e09f9c94841bf5aa1fb84ee5c39.pdf?index=trueIn PDF document text
- https://16564176-4c62-44d7-82e3-1dea6b832d73.filesusr.com/ugd/5e57cf_e0b85bf40a6444f48c1dd3679b4d49dc.pdf?index=trueIn 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_off00010e8f.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x10E8F | 5088 bytes |
SHA-256: b87c3108ad31e038361a2521b016252cb422fa610435d37930f4cddf07afc5a9 |
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font_01_sfnt_off00011fb7.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x11FB7 | 11896 bytes |
SHA-256: 7b1720579008272afef8142ddc4bd19b1ccc29b8a7ea257457e0f58cb7f5e7d5 |
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