MALICIOUS
186
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1203 Exploitation for Client Execution
The sample is a PDF file identified as malicious by ClamAV and an ML classifier. It contains a large number of external links, many hosted on disposable domains, suggesting a link farm or phishing operation. The 'PDF_SEO_LINK_FARM' and 'PDF_SEO_DISPOSABLE_LINK_FARM' heuristics indicate a deliberate attempt to manipulate search engine results or distribute malicious content through numerous redirects.
Machine Learning
- Nyx PDF Classifier malicious score 0.9996
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://golowaki.ru/strik?utm_term=lonely+planet+magazine+italy PDF link annotation
- https://vekupaju.weebly.com/uploads/1/3/4/4/134479754/sabinozafutinegixud.pdfIn PDF document text
- https://static.s123-cdn-static.com/uploads/4454541/normal_6006d78ee8008.pdfIn PDF document text
- https://cdn-cms.f-static.net/uploads/4365626/normal_6047a71e0fcf4.pdfIn PDF document text
- http://clebohets.xyz/to_kill_a_mockingbird_by_harper_lee_quoteshih8n.pdfIn PDF document text
- https://cdn-cms.f-static.net/uploads/4473044/normal_604b4c83d658d.pdfIn PDF document text
- https://cdn-cms.f-static.net/uploads/4483623/normal_602a176653123.pdfIn PDF document text
- https://jewotefajasofu.weebly.com/uploads/1/3/2/7/132741420/74b5b6c29b.pdfIn PDF document text
- https://cdn-cms.f-static.net/uploads/4460066/normal_60203a32ef7c2.pdfIn PDF document text
- https://zixijatujomalul.weebly.com/uploads/1/3/5/9/135962278/1200252.pdfIn PDF document text
- https://cdn-cms.f-static.net/uploads/4479688/normal_603a7ea5edb1a.pdfIn PDF document text
- http://reduslimitalia-oficial.site/72971829256mc7wh.pdfIn PDF document text
- https://cdn-cms.f-static.net/uploads/4380523/normal_606b0bbf01dcb.pdfIn PDF document text
- https://cdn-cms.f-static.net/uploads/4490722/normal_6055693ec5067.pdfIn PDF document text
- https://cdn-cms.f-static.net/uploads/4500692/normal_60121b6567c04.pdfIn PDF document text
- https://vosasavowaje.weebly.com/uploads/1/3/4/5/134587316/gebubadu.pdfIn PDF document text
- https://cdn-cms.f-static.net/uploads/4446017/normal_603a950136896.pdfIn PDF document text
- https://cdn-cms.f-static.net/uploads/4420250/normal_6010a8277fb1e.pdfIn PDF document text
- https://cdn-cms.f-static.net/uploads/4383805/normal_60632a6fca222.pdfIn PDF document text
- http://www.ascendercorp.com/In PDF document text
- http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
- https://a84030a7-2e48-4039-807a-383e2b7216cc.filesusr.com/ugd/c5d40f_b6cb7a8c28d84ef7913a1f48a8d4f929.pdf?index=trueIn PDF document text
- https://e7e1611e-f78d-4dfd-b5ce-3be5f579732f.filesusr.com/ugd/4b76a6_e4617c48a8c14f7eb24ca83b05ff2174.pdf?index=trueIn PDF document text
- https://f13dd0f9-fe0a-4257-a88d-d9af1a1cf0e3.filesusr.com/ugd/d954c5_04d5b57d4d2240dc8985d3b56880dfba.pdf?index=trueIn PDF document text
- https://98e80eac-0673-4bf9-a3de-4132461903b3.filesusr.com/ugd/1acd69_a75e2df5d011447897d7515b014f20c4.pdf?index=trueIn 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_off0000f3ae.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xF3AE | 4956 bytes |
SHA-256: cbfe9b1892472df7cfbd372ce5525b85766cb0a234458c335f5c3ca6546a1022 |
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font_01_sfnt_off00010497.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x10497 | 10948 bytes |
SHA-256: 5b33584f14760b750feec3f66df59ef77396cb0a562a034b80f36d91c28c51a0 |
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