MALICIOUS
186
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1059.007 JavaScript
This PDF document was flagged as malicious by ClamAV and an ML classifier. The file embeds a large number of external links characteristic of an SEO link farm. Specific URLs and indicators for this sample are listed in the indicators section.
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://mezovuduw.ru/strik?utm_term=maxtor+one+touch+2+300gb+power+supply PDF link annotation
- https://static.s123-cdn-static.com/uploads/4476595/normal_5fc6ccb28abb7.pdfIn PDF document text
- https://cdn-cms.f-static.net/uploads/4413702/normal_6024a2bdb307a.pdfIn PDF document text
- https://cdn.sqhk.co/detaludolef/jFjgBUj/study_tips_for_college_students_with_learning_disabilities.pdfIn PDF document text
- https://cdn.sqhk.co/wunasesev/gjigicc/72116600601.pdfIn PDF document text
- https://static.s123-cdn-static.com/uploads/4426815/normal_5ffa81ac7d508.pdfIn PDF document text
- https://cdn.sqhk.co/xupebasolaw/eEhfoJB/avery_5161_template_google_docs.pdfIn PDF document text
- https://cdn-cms.f-static.net/uploads/4410431/normal_601501c3ad963.pdfIn PDF document text
- https://cdn-cms.f-static.net/uploads/4469824/normal_5fda358ae8396.pdfIn PDF document text
- https://cdn-cms.f-static.net/uploads/4380691/normal_5fdb36aa8edc7.pdfIn PDF document text
- https://cdn-cms.f-static.net/uploads/4418558/normal_602230248e80e.pdfIn PDF document text
- https://static.s123-cdn-static.com/uploads/4415070/normal_5ffa5d72f16e4.pdfIn PDF document text
- https://cdn.sqhk.co/nebafori/ejjEgdH/java_jsp_servlet_tutorial.pdfIn PDF document text
- https://cdn.sqhk.co/wopidevepip/geepmzv/notikojulirebunazuluri.pdfIn PDF document text
- http://www.ascendercorp.com/In PDF document text
- http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
- https://47ab6ce1-aee6-4086-a8e7-31fe393d2411.filesusr.com/ugd/afbef4_9ac23754fb254df7b84f2d4ad034e9cc.pdf?index=trueIn PDF document text
- https://s3.amazonaws.com/kotodur/tumamefanejaxixudurog.pdfIn PDF document text
- https://1d812fcc-cfc3-4558-a870-56fc5b7f4c2e.filesusr.com/ugd/754d94_3b65099a5fe7474f99a14600b524565f.pdf?index=trueIn PDF document text
- https://0dd0cd87-80d3-4eb5-b9c6-73c43c3a6fca.filesusr.com/ugd/f0b6b3_7647274e652e47a5a5767c33ef80870e.pdf?index=trueIn PDF document text
- https://e5447efa-8854-4d04-834e-f0bbd7438c8b.filesusr.com/ugd/ac612b_b2b47fa53ca34b41ab0fc5d9d2460e31.pdf?index=trueIn PDF document text
- https://s3.amazonaws.com/lekezaru/94508925913.pdfIn PDF document text
- https://s3.amazonaws.com/xupovobejanam/82279107245.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_off00012e80.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x12E80 | 6040 bytes |
SHA-256: 1ef5df890074243868ac7cde1551a10ab655b32e5692b1353c36cb9eeebd6bef |
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font_01_sfnt_off00014330.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x14330 | 12192 bytes |
SHA-256: d62304e4d45e77c48aab51cb65beb9cefffcfa7be4883222c30f7823afbcefd1 |
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