MALICIOUS
244
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1203 Exploitation for Client Execution
The PDF contains a large number of embedded links pointing to external PDF files, a technique often used for SEO manipulation or to distribute malicious content. The heuristic firings indicate that the PDF links to known malicious redirector infrastructure and is part of a link farm on disposable hosting. The ML classifier and ClamAV detection strongly suggest malicious intent.
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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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/wix?keyword=nefarian+boss+guide In PDF document text
- http://pl50off.info/the_alchemist_code_global_news2lnu9.pdfIn PDF document text
- https://cdn-cms.f-static.net/uploads/4474985/normal_5fd126addc8c6.pdfIn PDF document text
- https://sefewazugep.weebly.com/uploads/1/3/5/2/135293251/zenepur-sozabozuwakus-kitetugikijab.pdfIn PDF document text
- http://remontvorot24.com/ind_safety_reporting_regulationskrdje.pdfIn PDF document text
- http://axecheat8.xyz/84849159790ozowp.pdfIn PDF document text
- https://cdn.sqhk.co/kegufamop/uhbidib/kuvorajebarixisa.pdfIn PDF document text
- https://wabexerimib.weebly.com/uploads/1/3/0/7/130739061/xifoziso-wajapewob-jukuvuxo-muxisavirujit.pdfIn PDF document text
- https://static.s123-cdn-static.com/uploads/4420604/normal_5fffb36497149.pdfIn PDF document text
- https://jonomivebotuw.weebly.com/uploads/1/3/4/6/134683751/2c1bfe5f75a6b.pdfIn PDF document text
- https://cdn-cms.f-static.net/uploads/4421776/normal_5fd8317e06fba.pdfIn PDF document text
- https://cdn-cms.f-static.net/uploads/4373259/normal_602ada285d98d.pdfIn PDF document text
- https://static.s123-cdn-static.com/uploads/4388174/normal_5fedb0692352e.pdfIn PDF document text
- https://cdn-cms.f-static.net/uploads/4443576/normal_5fd87a1999971.pdfIn PDF document text
- http://giocodigital.fun/27884485917mmxva.pdfIn PDF document text
- https://cdn-cms.f-static.net/uploads/4501229/normal_5fe9b6e0ed143.pdfIn PDF document text
- https://cdn.sqhk.co/vanewano/TibEhhK/7511458579.pdfIn PDF document text
- https://cdn.sqhk.co/xeposetuge/blljfjc/save_girl_child_essay_in_english_100_words.pdfIn PDF document text
- https://cdn-cms.f-static.net/uploads/4406229/normal_5fe6942facaba.pdfIn PDF document text
- https://static.s123-cdn-static.com/uploads/4475209/normal_600321b636b3d.pdfIn PDF document text
- http://ses-paypal.com/imagery_in_romeo_and_juliet_act_4xreqc.pdfIn PDF document text
- http://www.ascendercorp.com/In PDF document text
- http://www.ascendercorp.com/typedesigners.htmlIn 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_off0000e38e.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xE38E | 5152 bytes |
SHA-256: 9ee06fa71c2f9dbb40ea2dc995aa11c7b7ceeed33ac52b44bb9f5c03e1d4d0b6 |
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font_01_sfnt_off0000f529.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xF529 | 10368 bytes |
SHA-256: c15a5492a58e0e1aef011773a0fc2d13630affdf4ce304c404ef01820e15ecf7 |
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