MALICIOUS
196
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1059.007 JavaScript
The PDF contains numerous external links, many pointing to SEO-optimized redirectors, indicating a link farm or phishing lure. The heuristic PDF_SEO_LINK_FARM and PDF_SEO_UTM_REDIRECTOR_LINK strongly suggest a malicious intent to redirect users to potentially harmful sites. The ClamAV detection further confirms its malicious nature, classifying it as a phishing trojan.
Machine Learning
- Nyx PDF Classifier malicious score 0.9996
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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Image lure linking to an SEO redirector (free-download phishing) high PDF_SEO_UTM_REDIRECTOR_LINKPDF embeds an image with little or no body text and a clickable link to a multi-word utm_term / FeedBurner-proxied SEO redirector — the 'free ebook / solution-manual / document download' phishing family that ranks for natural-language search queries and routes the user into a payload/redirect chain. The PDF carries no exploit; the risk is the linked destination. Flagged structurally (image lure + SEO redirector) so it does not depend on a ClamAV/ML signature, and regardless of how many filler text pages the lure carries.
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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://nipisod.ru/123?utm_term=iridium+phone+number+format PDF link annotation
- https://static.s123-cdn-static.com/uploads/4366313/normal_5fcd39032fb05.pdfIn PDF document text
- https://static.s123-cdn-static.com/uploads/4467561/normal_600020e15fc9d.pdfIn PDF document text
- https://cdn-cms.f-static.net/uploads/4409818/normal_60565f5a7ebd7.pdfIn PDF document text
- https://cdn-cms.f-static.net/uploads/4392439/normal_60401ca513d61.pdfIn PDF document text
- https://zoparidozuxeb.weebly.com/uploads/1/3/5/3/135390671/756da8c5d.pdfIn PDF document text
- https://miwimuwal.weebly.com/uploads/1/3/0/7/130775744/solosujenu.pdfIn PDF document text
- https://zetizisoxaw.weebly.com/uploads/1/3/4/4/134498522/4757.pdfIn PDF document text
- https://static.s123-cdn-static.com/uploads/4491686/normal_5ff57d6578272.pdfIn PDF document text
- https://cdn-cms.f-static.net/uploads/4380082/normal_5fd1d656163e9.pdfIn PDF document text
- https://xinejusitap.weebly.com/uploads/1/3/4/6/134630468/7901199.pdfIn PDF document text
- https://cdn-cms.f-static.net/uploads/4375070/normal_603fd86119894.pdfIn PDF document text
- https://mijawogutudegi.weebly.com/uploads/1/3/4/3/134374589/4702377.pdfIn PDF document text
- https://cdn-cms.f-static.net/uploads/4408873/normal_60270f5f57c81.pdfIn PDF document text
- https://jetizapu.weebly.com/uploads/1/3/4/3/134371104/vujefawip.pdfIn PDF document text
- https://static.s123-cdn-static.com/uploads/4473938/normal_5fdead69c3a99.pdfIn PDF document text
- https://fosapiluni.weebly.com/uploads/1/3/4/6/134653401/e072bf1fad.pdfIn PDF document text
- https://static.s123-cdn-static.com/uploads/4483388/normal_5ff62106237eb.pdfIn PDF document text
- https://detaliwaka.weebly.com/uploads/1/3/4/3/134340587/54e6b6ef32d41.pdfIn PDF document text
- http://www.ascendercorp.com/In PDF document text
- http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
- http://www.daltonmaag.com/In PDF document text
- https://uploads.strikinglycdn.com/files/e8a8b08e-2a3c-4fde-8fe9-5f9e1159db77/descargar_libro_de_el_abc_de_las_instalaciones_electricas_industriales.pdfIn PDF document text
- https://uploads.strikinglycdn.com/files/60dd7384-003e-445e-a5f2-2069e74f8f71/90010527059.pdfIn PDF document text
- https://uploads.strikinglycdn.com/files/c156bf39-af2b-40e2-aa02-69fa4b688bfc/45597925280.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 3
Files carved from inside the sample during analysis.
| Filename | Kind | Source | Size |
|---|---|---|---|
font_00_sfnt_off0000e48b.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xE48B | 5028 bytes |
SHA-256: 795873a88fe4ab4f53f7a3527a6703a945dcbc2a113036f31c192aa463f72ebe |
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font_01_sfnt_off0000f563.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xF563 | 10500 bytes |
SHA-256: 6a5e804312f220af71d3ba919a15fe268737091fe928abd12c7d25be69477a07 |
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font_02_sfnt_off00011955.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x11955 | 4324 bytes |
SHA-256: d1f4a20f0e35a0564be54678b929bb8c711862c507f070c2b9a6abea8daf4378 |
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