MALICIOUS
186
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1059.007 JavaScript
The PDF contains a large number of external links, identified as a link farm, pointing to various PDF files hosted on disposable domains. This behavior is indicative of SEO spam or a distribution mechanism for further malicious content. The ML classifier and ClamAV detection strongly suggest malicious intent, and the PDF_SEO_LINK_FARM heuristic confirms the presence of a link farm.
Machine Learning
- Nyx PDF Classifier malicious score 0.9998
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://maypoin.ru/123?utm_term=the+birds+storyboard PDF link annotation
- http://help-verification.com/kudarakonoxbq2e.pdfIn PDF document text
- https://cdn.sqhk.co/rasepotobami/rjdhcje/wobofotizesodubebone.pdfIn PDF document text
- https://cdn.sqhk.co/lanumakefu/bijpibv/age_of_history_2_cheats.pdfIn PDF document text
- https://cdn-cms.f-static.net/uploads/4367279/normal_600de0a7ef4e3.pdfIn PDF document text
- https://wilulesutazi.weebly.com/uploads/1/3/3/9/133997377/f759f7c50.pdfIn PDF document text
- http://damvglaz0.xyz/hidden_object_pictures_freeu2h91.pdfIn PDF document text
- https://cdn.sqhk.co/famuxina/jg74hhj/scanmaster_for_elm327_obd2_scantool_full.pdfIn PDF document text
- https://cdn.sqhk.co/lafuwexale/gjiehh1/siresozofufines.pdfIn PDF document text
- http://hookup153.online/94893201073g26lm.pdfIn PDF document text
- http://aromaita.space/fundamentals_of_engineering_economics_and_decision_analysisc4t8j.pdfIn PDF document text
- https://cdn.sqhk.co/vetukalujir/egfu1jj/pirate_king_hack_tool_no_survey.pdfIn PDF document text
- https://cdn-cms.f-static.net/uploads/4495994/normal_5fd3ad3bd7f4c.pdfIn PDF document text
- https://wowujisalot.weebly.com/uploads/1/3/4/3/134349860/lobezopibuj_fedisi_gotego.pdfIn PDF document text
- https://static.s123-cdn-static.com/uploads/4417314/normal_5fed3012b2174.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_off0000e714.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xE714 | 5072 bytes |
SHA-256: 341096c6e144f9469da2cbe60d720037baf6e71853d079d67ad1e1e3a253a5a7 |
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font_01_sfnt_off0000f849.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xF849 | 10452 bytes |
SHA-256: 5839f5b82ca92c6fc7525856d7db2045ac003044309f8e1212cb68fa9c608027 |
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