MALICIOUS
96
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1059.007 JavaScript
This PDF file was flagged by a machine learning classifier 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 campaign to trick users into visiting a malicious site. The document body, though heavily obfuscated, appears to relate to 'free books onto kindle', a common lure for phishing attacks.
Machine Learning
- Nyx PDF Classifier malicious score 0.9993
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/123?utm_term=free+books+onto+kindle
- https://static.s123-cdn-static.com/uploads/4467945/normal_5fe413092fdaa.pdf
- https://static.s123-cdn-static.com/uploads/4390663/normal_6004b952d4a26.pdf
- https://static.s123-cdn-static.com/uploads/4418566/normal_5fdd42698c171.pdf
- https://cdn-cms.f-static.net/uploads/4503791/normal_60500d1361507.pdf
- http://fiwazurenorin.iblogger.org/39101813335.pdf
- http://kozaredibedemok.iblogger.org/18712140113.pdf
- https://cdn-cms.f-static.net/uploads/4500678/normal_6064cb6b0d876.pdf
- https://cdn-cms.f-static.net/uploads/4367005/normal_5fe8de350255a.pdf
- https://cdn-cms.f-static.net/uploads/4366652/normal_6048250daab24.pdf
- https://cdn-cms.f-static.net/uploads/4471481/normal_6011ab8c5150c.pdf
- http://soldatskaya6.ru/52619537698mzb7f.pdf
- http://ovca.space/tipiwirez0a5ey.pdf
- http://javebamugizal.66ghz.com/48105254114.pdf
- https://static.s123-cdn-static.com/uploads/4426263/normal_600087c52f658.pdf
- http://idealica-columbia.site/tarumurikopawovimaxikujvwx1.pdf
- http://www.ascendercorp.com/
- http://www.ascendercorp.com/typedesigners.html
- http://fuxufotab.epizy.com/tosinisozoxeboxusu.pdf
- http://bategozejaxa.rf.gd/vifazufegosu.pdf
- https://s3.amazonaws.com/jadere/vejoxazizudazimisewotu.pdf
- http://zuraravata.epizy.com/bryant_plus_80_furnace_air_filter.pdf
- https://s3.amazonaws.com/poguvelefa/how_to_reset_waste_ink_pad_counter_for_epson_l380.pdf
- https://s3.amazonaws.com/luramamelolem/new_bodo_song_now.pdf
- https://s3.amazonaws.com/xasovewipeje/59753930505.pdf
- http://ninesunugata.epizy.com/78675740953.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_off0000eb18.binfe8f4638bbc373ec40377dec57b3f5ad8804c8a78abc2b006d6c9a479725fc2c |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xEB18 | 4768 bytes |
font_01_sfnt_off0000fb5d.bin730bddfc0066b1e37470419e0218a6b9895c7cd8dbfe6e47b8138d361eae6b84 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xFB5D | 10920 bytes |
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