MALICIOUS
156
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1059.007 JavaScript
The PDF file contains numerous external links, with a critical heuristic identifying a 'PDF_SEO_LINK_FARM' pointing to multiple PDF files. One of the primary external URIs, 'https://resalured.ru/strik?utm_term=ejercicios+de+diptongos+e+hiatos+para+4+primaria', suggests a lure related to educational exercises. The ML classifier and ClamAV detection strongly indicate malicious intent, likely for phishing or malware distribution.
Machine Learning
- Nyx PDF Classifier malicious score 0.9996
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-d2568dad23a94d95-d2568dad23a94d95-10044375-0 critical CLAMAV_DETECTIONClamAV detected this file as malware: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0
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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://resalured.ru/strik?utm_term=ejercicios+de+diptongos+e+hiatos+para+4+primaria
- https://durunefa.weebly.com/uploads/1/3/4/7/134712847/4327764.pdf
- https://pijuvadugodawa.weebly.com/uploads/1/3/4/3/134307721/lerapifovoduxalud.pdf
- https://dujodorenenap.weebly.com/uploads/1/3/4/4/134488447/polofesuri.pdf
- https://ruvezidarumova.weebly.com/uploads/1/3/1/3/131380493/4562453.pdf
- https://relakurofur.weebly.com/uploads/1/3/4/8/134872141/b5ffe618727d.pdf
- https://jotegeposopema.weebly.com/uploads/1/3/4/7/134743683/5408768.pdf
- https://zurenigexozaxil.weebly.com/uploads/1/3/4/6/134606750/mavuzanidonokagaj.pdf
- https://gasezojilatinoj.weebly.com/uploads/1/3/1/4/131455825/fbe53d029d9c3c1.pdf
- https://dojudetokin.weebly.com/uploads/1/3/4/6/134613144/1082ee80c.pdf
- https://mizefubu.weebly.com/uploads/1/3/4/6/134637235/mesamibesok.pdf
- https://ruzuxopamekegi.weebly.com/uploads/1/3/4/7/134748505/mazujotemoxenab.pdf
- http://www.ascendercorp.com/
- http://www.ascendercorp.com/typedesigners.html
- https://s3.amazonaws.com/pusori/sebijidofibu.pdf
- https://s3.amazonaws.com/purixifusipelid/rufaxuredamelekenidirisuw.pdf
- https://uploads.strikinglycdn.com/files/cf6a1c02-255e-4bb5-ac14-842e84f8c162/pupuvorimenavogufutuj.pdf
- https://s3.amazonaws.com/naxozelozude/2536949564.pdf
- https://uploads.strikinglycdn.com/files/4d6ede46-f4d1-4374-b635-3471ccc4afaa/what_is_free_cash_flow_of_a_company.pdf
- https://uploads.strikinglycdn.com/files/0bd03ee8-a12b-4b79-9b01-621183bcd631/the_giver_chapter_13_and_14_summary.pdf
- https://s3.amazonaws.com/jifesu/gomufawiruwakazekedolive.pdf
- https://uploads.strikinglycdn.com/files/062e237d-8901-468f-b25d-a105759c6592/insurance_fraud_investigators_salary.pdf
- https://s3.amazonaws.com/bokofapig/vuxozukumimufanowonoluzu.pdf
- https://uploads.strikinglycdn.com/files/c522d657-56e2-44b0-b241-cfc102656637/59180163796.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
- http://dejavu.sourceforge.net
- http://dejavu.sourceforge.net/wiki/index.php/License
Extracted artifacts 3
Files carved from inside the sample during analysis.
| Filename | Kind | Source | Size |
|---|---|---|---|
font_00_sfnt_off0000e40c.bin6a6bd26f251bcd45637cd3f845b4e56f3f6cfb0aa8131c3fcd88a0a68fda0253 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xE40C | 5576 bytes |
font_01_sfnt_off0000f6ec.bine14c9e085616bd541b2bd88a0c5106e6d4806a3ffe467eda9abf4435e2e3bef3 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xF6EC | 13420 bytes |
font_02_sfnt_off000121b3.bin7f64a184185b19c4509fb58d2bd1b04ad0bf592a661abde0780cedf99fd3e42e |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x121B3 | 16164 bytes |
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