MALICIOUS
156
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1059.007 JavaScript
The PDF file was detected as malicious by ClamAV and an ML classifier, indicating a high likelihood of malicious intent. It contains a large number of external links, suggesting it is part of a link farm designed to redirect users to potentially harmful websites. The presence of embedded URLs and the heuristic 'PDF_SEO_LINK_FARM' strongly suggest this document is used for malicious redirection or phishing.
Machine Learning
- Nyx PDF Classifier malicious score 0.9998
Heuristics 5
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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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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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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://trafffe.ru/strik?utm_term=botany+study+guide
- https://cdn-cms.f-static.net/uploads/4466368/normal_5fbea56a7fa3d.pdf
- https://cdn-cms.f-static.net/uploads/4366371/normal_5f985fa9420d4.pdf
- https://static.s123-cdn-static.com/uploads/4489994/normal_5fc925fb866b8.pdf
- https://cdn-cms.f-static.net/uploads/4458163/normal_5fa2ed501a3c7.pdf
- https://cdn-cms.f-static.net/uploads/4471091/normal_5fd739c59d812.pdf
- https://cdn-cms.f-static.net/uploads/4378165/normal_5fa52a9f68947.pdf
- https://cdn-cms.f-static.net/uploads/4366401/normal_5f89d9cce2d1d.pdf
- https://cdn-cms.f-static.net/uploads/4366980/normal_5f8871c48eac9.pdf
- https://sibotapitagota.weebly.com/uploads/1/3/4/3/134378411/2155643.pdf
- http://www.ascendercorp.com/
- http://www.ascendercorp.com/typedesigners.html
- https://static1.squarespace.com/static/5fbce344be7cfc36344e8aaf/t/5fbf67d07acac6192ab92ab2/1606379473107/critical_care_notes_clinical_pocket_guide_3rd_edition.pdf
- https://s3.amazonaws.com/lopazura/bogeboxefitipibamo.pdf
- https://s3.amazonaws.com/juzinaramip/mobusaxezevenametala.pdf
- https://static1.squarespace.com/static/5fc78f50e9133927d90f8a19/t/5fd732fedf2f0204c250afdf/1607938814824/bajivejesajukagigazofoji.pdf
- https://s3.amazonaws.com/megodipewukitoj/51689196253.pdf
- http://www.w3.org/1999/02/22-rdf-syntax-ns#
- http://purl.org/dc/elements/1.1/
- http://ns.adobe.com/pdf/1.3/
- http://ns.adobe.com/xap/1.0/
- http://ns.adobe.com/xap/1.0/mm/
- http://ns.adobe.com/xap/1.0/rights/
- http://scripts.sil.org/OFL
Extracted artifacts 2
Files carved from inside the sample during analysis.
| Filename | Kind | Source | Size |
|---|---|---|---|
font_00_sfnt_off000131b1.bindd9fe4296a4e01d9eb510d6f71676d6fa0f23bfdbd4f2131ee85e563b50f475a |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x131B1 | 5016 bytes |
font_01_sfnt_off000142e1.binecddf475cdabcc29da48346fcfd8b3343804d206d0aea6d02b045719e2413d30 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x142E1 | 11132 bytes |
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