MALICIOUS
186
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1059.007 JavaScript
This PDF file is identified as malicious by multiple heuristics and a machine learning classifier, and is detected by ClamAV as a phishing trojan. It contains a large number of external links, many pointing to disposable domains, suggesting a link farm or SEO spam operation. The document body, though heavily obfuscated, appears to contain metadata related to sheet music and document generation, likely serving as a lure to direct users to malicious external sites.
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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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://leonvi.ru/strik?utm_term=chopin+nocturne+20+c+sharp+minor+violin+sheet+music PDF link annotation
- https://rarejiwu.weebly.com/uploads/1/3/1/6/131606055/5693964.pdfIn PDF document text
- https://tizevilujiv.weebly.com/uploads/1/3/1/4/131406709/b51a75d6d744a.pdfIn PDF document text
- https://kuvopesi.weebly.com/uploads/1/3/2/3/132303138/fudolu-gikus.pdfIn PDF document text
- https://maxokafas.weebly.com/uploads/1/3/1/4/131406275/tetugivefe.pdfIn PDF document text
- https://vunorizuwuxina.weebly.com/uploads/1/3/0/7/130774993/151092.pdfIn PDF document text
- https://jikujumek.weebly.com/uploads/1/3/5/3/135318263/sefuxaxeweraxom.pdfIn PDF document text
- https://jotesufuxave.weebly.com/uploads/1/3/1/4/131483421/eb8110d357d.pdfIn PDF document text
- https://pobejatu.weebly.com/uploads/1/3/2/7/132741278/b638a8e5cf.pdfIn PDF document text
- https://bexobejunoguwed.weebly.com/uploads/1/3/0/7/130775871/0b7c9db01819d3a.pdfIn PDF document text
- https://toxafowusolele.weebly.com/uploads/1/3/2/8/132815148/jovubili-gegivunig-nexasalevumesek.pdfIn PDF document text
- https://lekakuvikel.weebly.com/uploads/1/3/1/3/131380005/tuwilowodep-wazubetebuwo-diwatozumid-kebaxusa.pdfIn PDF document text
- https://banafovogakake.weebly.com/uploads/1/3/5/3/135326552/jovavumopegefo-tegusifeboruda.pdfIn PDF document text
- https://cdn-cms.f-static.net/uploads/4379614/normal_60582ae3994ad.pdfIn PDF document text
- https://static.s123-cdn-static.com/uploads/4390069/normal_5fddb4084159e.pdfIn PDF document text
- https://xaxibilezulaf.weebly.com/uploads/1/3/4/0/134096047/4104b1.pdfIn PDF document text
- https://cdn-cms.f-static.net/uploads/4393369/normal_603a0db8b38a7.pdfIn PDF document text
- http://www.ascendercorp.com/In PDF document text
- http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
- https://uploads.strikinglycdn.com/files/01160668-7629-47a9-a8fc-f1c08702dc6a/what_does_covered_full_service_mean.pdfIn PDF document text
- https://s3.amazonaws.com/jaxesabi/tigumugafenijo.pdfIn PDF document text
- https://s3.amazonaws.com/tuxenipup/what_does_cronbach_alpha_mean.pdfIn PDF document text
- https://s3.amazonaws.com/gedesisumi/49731314914.pdfIn PDF document text
- https://s3.amazonaws.com/zuvovoxigumuz/58102775671.pdfIn PDF document text
- https://uploads.strikinglycdn.com/files/c5cff975-33aa-4408-91af-405d50707f49/how_many_calories_are_in_a_taco_bell_cheese_quesadilla.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_off0000ffe7.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xFFE7 | 5412 bytes |
SHA-256: e3b1c6f0d930b45d48f5a85913a59a6cb571e7319e30c56e68d796fce57ed4ff |
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font_01_sfnt_off00011221.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x11221 | 11984 bytes |
SHA-256: 1f5b105e86a111e1ecf0159e3e920498200e963c340eb9fc77060d2f5f2c840e |
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