MALICIOUS
186
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1059.007 JavaScript
The PDF file contains numerous embedded links to external websites, forming a link farm. The heuristic 'PDF_SEO_LINK_FARM' and 'PDF_SEO_DISPOSABLE_LINK_FARM' indicate a malicious intent to redirect users to potentially harmful content. The ML classifier and ClamAV detection strongly suggest this PDF is malicious, likely a phishing or malware distribution lure.
Machine Learning
- Nyx PDF Classifier malicious score 0.9995
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://midufefew.ru/strik?utm_term=exponent+rules+worksheet+grade+8 PDF link annotation
- https://cdn-cms.f-static.net/uploads/4483081/normal_6047404443591.pdfIn PDF document text
- https://cdn-cms.f-static.net/uploads/4500895/normal_5fda74782a33c.pdfIn PDF document text
- https://zuvurakos.weebly.com/uploads/1/3/4/0/134042350/4baf912f08bd3a5.pdfIn PDF document text
- https://static.s123-cdn-static.com/uploads/4475987/normal_5fcbccf354b8c.pdfIn PDF document text
- https://cdn-cms.f-static.net/uploads/4465389/normal_60227572a7f77.pdfIn PDF document text
- https://lesidodulutenem.weebly.com/uploads/1/3/4/3/134352412/22e7e8.pdfIn PDF document text
- https://cdn-cms.f-static.net/uploads/4413121/normal_6040bbf7928b5.pdfIn PDF document text
- https://cdn-cms.f-static.net/uploads/4386606/normal_601b94b6da271.pdfIn PDF document text
- https://cdn-cms.f-static.net/uploads/4366676/normal_6053e26d30e0a.pdfIn PDF document text
- https://penopetidurip.weebly.com/uploads/1/3/2/8/132815040/finubuvup.pdfIn PDF document text
- https://tizatikunokoxul.weebly.com/uploads/1/3/1/0/131070767/0023cadfea52.pdfIn PDF document text
- https://solujasamaro.weebly.com/uploads/1/3/4/6/134695729/noluzinolaledaw.pdfIn PDF document text
- https://gewuzonaxos.weebly.com/uploads/1/3/4/7/134714103/zaxig_zevoxisujasit.pdfIn PDF document text
- https://totidulabi.weebly.com/uploads/1/3/1/6/131606487/6842387.pdfIn PDF document text
- https://weradarodoruz.weebly.com/uploads/1/3/4/7/134744379/bowazigupupuzakanid.pdfIn PDF document text
- https://megevoweroke.weebly.com/uploads/1/3/5/3/135351245/ed5fef8a59a43e1.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/976e98fb-a8f5-44a2-81f5-4f4ebfa6bda6/ditozolobunuloreb.pdfIn PDF document text
- https://uploads.strikinglycdn.com/files/2c50e8e1-9845-4a9c-93b3-3e4380237ad1/mojogixalanuxu.pdfIn PDF document text
- https://uploads.strikinglycdn.com/files/5afb989a-cea1-488d-9b2b-9adaa4a56feb/muvamugomupudosusuwoxuka.pdfIn PDF document text
- https://uploads.strikinglycdn.com/files/2f48d2ba-282c-4d2a-9353-1ed615d64926/should_i_learn_tai_chi_or_qigong.pdfIn PDF document text
- https://uploads.strikinglycdn.com/files/96d0426e-d2d0-45a4-b449-f067a9bcc847/83256200551.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
- 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_off00010ead.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x10EAD | 5596 bytes |
SHA-256: 55460794f525712bb59105ad5a563308804912b237bb195e4f48d1e651441251 |
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font_01_sfnt_off000121c9.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x121C9 | 10980 bytes |
SHA-256: 6d67925a5c81a83a5f2dd758a6a66c4cf9553bf7e42b0efb1f70317e6fcc5a67 |
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font_02_sfnt_off000147bc.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x147BC | 16088 bytes |
SHA-256: f52bd4b593644f02f0f619435e5fa065f797232cc4e46520c8624770b7971a45 |
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