MALICIOUS
186
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 a link farm containing numerous external URLs. The ML classifier also assigned a high probability of maliciousness. The document's purpose appears to be to redirect users to external websites, potentially for phishing or to serve further malicious content, as indicated by the PDF_SEO_LINK_FARM and PDF_SEO_DISPOSABLE_LINK_FARM heuristics.
Machine Learning
- Nyx PDF Classifier malicious score 0.9993
Heuristics 6
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ClamAV: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0 critical CLAMAV_DETECTIONClamAV detected this file as malware: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0
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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://zajinet.ru/wix?keyword=intermediate+microeconomics+notes PDF link annotation
- https://cdn.sqhk.co/moxulofilose/YgfWgga/bus_warszawa_centralna_biala_podlaska.pdfIn PDF document text
- https://cdn-cms.f-static.net/uploads/4411917/normal_60249339c5d6d.pdfIn PDF document text
- https://cdn.sqhk.co/sewetotab/EjjAWig/wingsuit_flying_deaths_youtube.pdfIn PDF document text
- https://cdn-cms.f-static.net/uploads/4386597/normal_60244abe8f672.pdfIn PDF document text
- http://pidawiwosoda.iblogger.org/physics_classroom_dc_circuit_builder_answers.pdfIn PDF document text
- https://static.s123-cdn-static.com/uploads/4380088/normal_5ffc30691c332.pdfIn PDF document text
- http://mowisadewojapu.22web.org/asp.net_core_tutorial_free.pdfIn PDF document text
- https://cdn.sqhk.co/wovupeni/6hegdZd/small_white_modern_farmhouse_plans.pdfIn PDF document text
- https://cdn-cms.f-static.net/uploads/4420924/normal_603af7497b4d9.pdfIn PDF document text
- https://cdn.sqhk.co/jomutepe/NfigFja/705343826.pdfIn PDF document text
- https://cdn.sqhk.co/digipexula/wibTjhT/jimukerofudagevo.pdfIn PDF document text
- http://www.ascendercorp.com/In PDF document text
- http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
- https://s3.amazonaws.com/foneniz/riwukonerazepekuwiwobem.pdfIn PDF document text
- https://409b2d23-5c1d-402e-97df-26c0da9299b0.filesusr.com/ugd/2e3d42_d7295af9a7bb4cdea92fc18f0896f41b.pdf?index=trueIn PDF document text
- https://f1ddcea9-c323-452c-a4d3-aaefec61e50a.filesusr.com/ugd/defd8a_de389ba1f2004c2d8b83989e452621b8.pdf?index=trueIn PDF document text
- https://18b09f4e-de4d-4c1b-9fe6-be55c63b1c00.filesusr.com/ugd/cd81e9_376cf9f553ad4f4c9a78d63f0f79b6d4.pdf?index=trueIn PDF document text
- https://92fa68c6-d088-48c5-94d9-776fe0504fc0.filesusr.com/ugd/5a053b_7b31cef2c92340b889727b58290a8759.pdf?index=trueIn PDF document text
- https://s3.amazonaws.com/numunenoji/76397069805.pdfIn PDF document text
- https://bf68d742-fb98-404a-ab47-1dcf24f7df52.filesusr.com/ugd/83e7fd_8f64fffb74c24ee5845a8f939809c410.pdf?index=trueIn PDF document text
- https://9334512a-4df1-45dc-8804-f0fa1d9e2a3d.filesusr.com/ugd/9466eb_8bcc5071f3424068b6df305b1efd9e5b.pdf?index=trueIn PDF document text
- https://08b4a39d-fa16-4eaa-91be-ae90003cacb9.filesusr.com/ugd/237bf7_7512348243c74d6d86ef4f6529402b98.pdf?index=trueIn PDF document text
- http://lotumimo.epizy.com/autobiography_of_yogi_in_tamil.pdfIn PDF document text
- https://s3.amazonaws.com/godewumazek/redunufagigeka.pdfIn PDF document text
- https://s3.amazonaws.com/xumakomowi/daninasilepobafe.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_off0000d6c9.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xD6C9 | 4992 bytes |
SHA-256: 1adcf2cec1f4eac2a471b8a6585fcbc6327774cfc30da08e542196b75c81d806 |
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font_01_sfnt_off0000e7a3.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xE7A3 | 10484 bytes |
SHA-256: 930d68b42b4540edc7458e923acc20ab3c5bec2f029778859a810d925c70f52c |
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