MALICIOUS
96
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1059.007 JavaScript
The PDF file was flagged by ML classifiers and ClamAV as malicious, specifically as a phishing trojan. It contains an embedded URL pointing to 'jacksth.ru', which is likely part of a phishing or malware distribution scheme. The document body, though heavily obfuscated, suggests a lure related to a markdown cheatsheet.
Machine Learning
- Nyx PDF Classifier malicious score 0.9998
Heuristics 4
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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://jacksth.ru/aws?utm_term=markdown+cheatsheet+md PDF link annotation
- https://static.s123-cdn-static.com/uploads/4385617/normal_6000d374d2a97.pdfIn PDF document text
- https://cdn.sqhk.co/mujutuzidip/le1ihie/desktop_tower_defense_strategy.pdfIn PDF document text
- https://cdn.sqhk.co/jepivitixiwo/h9eJUia/76778974580.pdfIn PDF document text
- http://profer-opt.ru/6826085444spy89.pdfIn PDF document text
- http://mishabelle.ru/semijegoxizedj9wkw.pdfIn PDF document text
- https://static.s123-cdn-static.com/uploads/4415742/normal_5fc9321b0338a.pdfIn PDF document text
- http://begdas.space/401924602272n76n.pdfIn PDF document text
- https://cdn-cms.f-static.net/uploads/4421612/normal_5fe7e5da38803.pdfIn PDF document text
- https://cdn-cms.f-static.net/uploads/4375703/normal_5fe75b01dc0c7.pdfIn PDF document text
- http://www.ascendercorp.com/In PDF document text
- http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
- http://gubuker.epizy.com/idsa_guidelines_uti_2017.pdfIn PDF document text
- http://boxalage.epizy.com/alfa_romeo_156_performance_parts.pdfIn PDF document text
- https://s3.amazonaws.com/wulotugadag/html_to_php_free.pdfIn PDF document text
- https://s3.amazonaws.com/towutoginadivu/danulenawuvopivedumalopap.pdfIn PDF document text
- https://s3.amazonaws.com/juzowilipi/51781637681.pdfIn PDF document text
- https://s3.amazonaws.com/tedowafomaru/mogor.pdfIn PDF document text
- https://s3.amazonaws.com/fizup/62933340047.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 3
Files carved from inside the sample during analysis.
| Filename | Kind | Source | Size |
|---|---|---|---|
font_00_sfnt_off0000dfce.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xDFCE | 5308 bytes |
SHA-256: 2b88a1c80b1567cd90bc22445834b2217508e8c1b2ab981ab1b46b4352627edc |
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font_01_sfnt_off0000f1c6.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xF1C6 | 2208 bytes |
SHA-256: 473f3103e51cafbf74fc4179b3cb3851544fce5f6ec2e89452d90f2bdbd086a6 |
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font_02_sfnt_off0000fbca.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xFBCA | 11112 bytes |
SHA-256: e51d96f8b9991a9613f29cc7d4c20b14e787fdd633a55a6cddca06ff7693d6b6 |
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