MALICIOUS
244
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1059.007 JavaScript
The PDF contains a large number of embedded URLs, many of which point to disposable domains and are indicative of a link farm designed to manipulate search engine rankings or distribute malicious content. One URL is explicitly flagged as a known malicious redirector. The ML classifier and ClamAV detection strongly suggest malicious intent, likely related to phishing or malware distribution.
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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PDF links to known malicious redirector infrastructure critical PDF_MALICIOUS_REDIRECTOR_LINKPDF contains a clickable URI to redirector infrastructure used by a known malicious PDF SEO/adware delivery campaign. These documents typically rely on user interaction and redirect chains rather than a PDF parser vulnerability.
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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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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://crophysi.ru/award?keyword=helping+verb+worksheets+for+grade+2+pdf In PDF document text
- https://kamejufozafa.weebly.com/uploads/1/3/4/8/134891268/rejobakad.pdfIn PDF document text
- http://qwertyujg.xyz/705260278968jue3.pdfIn PDF document text
- https://cdn.sqhk.co/zepipawetopi/dQ5xMtN/super_jungle_world_level_80.pdfIn PDF document text
- https://cdn-cms.f-static.net/uploads/4384160/normal_600a0dc730dcc.pdfIn PDF document text
- https://cdn.sqhk.co/reditifotep/1Fihidy/lanugebawajusililog.pdfIn PDF document text
- https://cdn-cms.f-static.net/uploads/4421468/normal_5fe99c569c126.pdfIn PDF document text
- http://golomashvanna.xyz/gebefurejavdmof.pdfIn PDF document text
- https://cdn-cms.f-static.net/uploads/4459774/normal_601b609d2bf84.pdfIn PDF document text
- http://lomidal.mygamesonline.org/79664267200.pdfIn PDF document text
- https://nawuwisenaz.weebly.com/uploads/1/3/5/3/135318134/5808948.pdfIn PDF document text
- https://cdn-cms.f-static.net/uploads/4471096/normal_600b6cc672cee.pdfIn PDF document text
- https://nezozavigarej.weebly.com/uploads/1/3/4/7/134727028/vopupojutowebej-gabuzufiwepu-gukulamagafitep-punelad.pdfIn PDF document text
- http://digtalcaliper09.xyz/the_greatest_salesman_in_the_world_summary_in_hindi4aslb.pdfIn PDF document text
- https://xotozefubineru.weebly.com/uploads/1/3/4/5/134576546/ab5295d88f56.pdfIn PDF document text
- http://qrettalq.online/what_miracles_did_god_perform_during_the_red_sea_crossinglsho9.pdfIn PDF document text
- https://cdn-cms.f-static.net/uploads/4445731/normal_6038c794a89c7.pdfIn PDF document text
- http://www.ascendercorp.com/In PDF document text
- http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
- http://medexode.atwebpages.com/40287643619.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 4
Files carved from inside the sample during analysis.
| Filename | Kind | Source | Size |
|---|---|---|---|
font_00_sfnt_off0000d8bc.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xD8BC | 5752 bytes |
SHA-256: ef8440404e79a34d1e0edaa9d1f70bb4fa09000bcf68e89fbb323083bef2d6c5 |
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font_01_sfnt_off0000ec57.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xEC57 | 3028 bytes |
SHA-256: 30a6b4a6086f1c48061751976d16aa78ca7a1bf2be227ebb3d17fc157cbba558 |
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font_02_sfnt_off0000f89e.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xF89E | 10404 bytes |
SHA-256: f77ad8e3ab7bb95b9d4ddcc81e040458473a4cc6aff57400c6e98b548c65953c |
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font_03_sfnt_off00011c6d.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x11C6D | 16336 bytes |
SHA-256: b7ec44cfe2208ace95a2ce43e698390e22c67aa42018be4a86f0f90cbe714ace |
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