MALICIOUS
186
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1059.007 JavaScript
This PDF file was detected as malicious by ClamAV and an ML classifier, indicating a high likelihood of malicious intent. It functions as a link farm, presenting a lure of free medical books to encourage downloads of other PDF documents from various disposable domains. The heuristic firings suggest the PDF contains a mass of external links, many hosted on disposable domains, designed to obscure the true malicious nature.
Machine Learning
- Nyx PDF Classifier malicious score 0.9997
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://xajibur.ru/award?keyword=download+medical+books+online+free+pdf+format PDF link annotation
- http://badoxik.scienceontheweb.net/38397199421.pdfIn PDF document text
- https://tuzutetenufiro.weebly.com/uploads/1/3/4/7/134716615/1847543.pdfIn PDF document text
- https://cdn-cms.f-static.net/uploads/4383698/normal_60187f5b0e132.pdfIn PDF document text
- https://ladufuvugekowek.weebly.com/uploads/1/3/4/1/134108614/9470555.pdfIn PDF document text
- https://funifagokose.weebly.com/uploads/1/3/2/6/132681236/944c3adda89b2.pdfIn PDF document text
- https://weligolujevis.weebly.com/uploads/1/3/4/7/134748453/a56ac2002.pdfIn PDF document text
- http://ligugiban.scienceontheweb.net/zofonisumenisedozim.pdfIn PDF document text
- https://renokogepebamon.weebly.com/uploads/1/3/2/6/132696434/sotidod-xinulagafif.pdfIn PDF document text
- https://desalipi.weebly.com/uploads/1/3/2/6/132681317/bikewonijelamazi.pdfIn PDF document text
- https://kutijodokijo.weebly.com/uploads/1/3/4/7/134706590/06100548.pdfIn PDF document text
- https://mipirizu.weebly.com/uploads/1/3/2/6/132682564/176437.pdfIn PDF document text
- https://static.s123-cdn-static.com/uploads/4450356/normal_5fcd600d92f22.pdfIn PDF document text
- http://menuralu.22web.org/80252994109.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/8bc50e27-99ef-4efe-9a6c-fd674044c866/how_much_oil_does_a_predator_8750_generator_hold.pdfIn PDF document text
- http://dubaduvuk.rf.gd/bleacher_report_wwe_crown_jewel_results.pdfIn PDF document text
- http://lerojijegomukuv.rf.gd/adsorption_isotherm_types.pdfIn PDF document text
- http://muxobuduxude.epizy.com/gallbladder_stone_diet.pdfIn PDF document text
- https://uploads.strikinglycdn.com/files/4ac9e9fe-15b8-43b8-9830-3e63daa2214b/tozerodiwozo.pdfIn PDF document text
- https://uploads.strikinglycdn.com/files/09445ab5-eae2-4125-afb7-8ee3ea9b9149/ge_appliances_ultrafresh_front_load_washer_with_odorblock_canada.pdfIn PDF document text
- http://makakanow.onlinewebshop.net/guweguzus.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_off0000ef7a.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xEF7A | 5596 bytes |
SHA-256: 3fa918e12a773549c93b60bf64405afcc154332f236872a897009bf578993bfd |
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font_01_sfnt_off0001027f.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x1027F | 10364 bytes |
SHA-256: 65b76f63a8061f4270513db3c4fd9a0a209ef0ad2aaacbd1b5b32eee4ef73e2d |
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