MALICIOUS
176
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1059.007 JavaScript
The file is identified as malicious by ClamAV and an ML classifier, with heuristics indicating it's a phishing lure using an SEO redirector. The embedded URL `https://kuzutuzo.ru/strik?utm_term=quick+street+fighting+techniques` is a key indicator of this phishing attempt. No scripts were extracted, but the PDF structure and associated URLs strongly suggest a phishing campaign.
Machine Learning
- Nyx PDF Classifier malicious score 0.9998
Heuristics 6
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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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Image lure linking to an SEO redirector (free-download phishing) high PDF_SEO_UTM_REDIRECTOR_LINKPDF embeds an image with little or no body text and a clickable link to a multi-word utm_term / FeedBurner-proxied SEO redirector — the 'free ebook / solution-manual / document download' phishing family that ranks for natural-language search queries and routes the user into a payload/redirect chain. The PDF carries no exploit; the risk is the linked destination. Flagged structurally (image lure + SEO redirector) so it does not depend on a ClamAV/ML signature, and regardless of how many filler text pages the lure carries.
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LOLBin token sequence in document text high SE_LOLBIN_RUN_COMMANDExtracted document text contains a Windows script/execution tool name (PowerShell, mshta, cmd, rundll32, regsvr32, …) within 220 characters of a dangerous flag, command verb, or URL. This is a visible 'run this' instruction in HTML/PDF/RTF lure bodies, or — in macro-laden Office files — the macro's own string-pool entries appearing adjacent in extracted text.
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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://kuzutuzo.ru/strik?utm_term=quick+street+fighting+techniques PDF link annotation
- https://static.s123-cdn-static.com/uploads/4422148/normal_5ff5526a860ca.pdfIn PDF document text
- https://cdn-cms.f-static.net/uploads/4385228/normal_5fd36b9361d6b.pdfIn PDF document text
- https://tevumusavobe.weebly.com/uploads/1/3/4/1/134108657/7980872.pdfIn PDF document text
- https://negogepif.weebly.com/uploads/1/3/0/7/130775604/koladufij.pdfIn PDF document text
- https://static.s123-cdn-static.com/uploads/4393358/normal_5fc81a36b20f5.pdfIn PDF document text
- http://bikejesoxatelo.mygamesonline.org/black_mens_curly_hairstyles_2020.pdfIn PDF document text
- http://zonerokemub.getenjoyment.net/juwoz.pdfIn PDF document text
- https://static.s123-cdn-static.com/uploads/4448346/normal_5ff291c968fe9.pdfIn macro / runtime command snippet
- http://wajofima.mywebcommunity.org/les_signes_cabalistiques.pdfIn macro / runtime command snippet
- https://wujemalevimovud.weebly.com/uploads/1/3/4/4/134470439/fikisadidarala_jakuvemezereta_fedunuwokekipap.pdfIn PDF document text
- https://cdn-cms.f-static.net/uploads/4382782/normal_602d26f894347.pdfIn PDF document text
- https://cdn-cms.f-static.net/uploads/4374860/normal_601ed03de50fb.pdfIn PDF document text
- https://static.s123-cdn-static.com/uploads/4494893/normal_5ffc667981a6f.pdfIn PDF document text
- http://zonerokemub.getenjoyment.neIn macro / runtime command snippet
- http://www.ascendercorp.com/In PDF document text
- http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
- https://uploads.strikinglycdn.com/files/db252c80-2f49-4cf1-b72c-8eb84ccfc46a/2000_jeep_grand_cherokee_lift_kit.pdfIn PDF document text
- http://bupalim.atwebpages.com/is_thrawn_a_villain.pdfIn PDF document text
- http://zuzopejorexa.onlinewebshop.net/71409439444.pdfIn PDF document text
- https://uploads.strikinglycdn.com/files/c65e5722-34d1-4971-bdd0-5e21c424157b/tidal_power_plant_pros_and_cons.pdfIn PDF document text
- http://kegigija.atwebpages.com/tarot_for_beginners.pdfIn PDF document text
- https://uploads.strikinglycdn.com/files/8cfd8f13-82ed-4060-8200-fb4168c184d2/gexuvafijawagekijujidaw.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_off00010369.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x10369 | 5152 bytes |
SHA-256: 5e6eafcfc86a9920b7703a678ee68d0c453c10a53e6f7b11843fa27f501a584b |
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font_01_sfnt_off000114f5.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x114F5 | 10616 bytes |
SHA-256: 75479b86cc1837523a16666867196e946abd9732a50ea68de457a19d3672ef73 |
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