MALICIOUS
126
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 numerous embedded URLs, with one prominent URL pointing to 'chcial.ru', suggesting a phishing or malware distribution attempt. The heuristic 'PDF_SEO_DISPOSABLE_LINK_FARM' indicates the PDF is designed to host many links on disposable domains, further supporting a malicious intent.
Machine Learning
- Nyx PDF Classifier malicious score 0.9842
Heuristics 5
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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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Small PDF is a non-clustered link farm on disposable hosting medium PDF_SEO_DISPOSABLE_LINK_FARMSmall PDF contains many clickable external PDF links spread thin across many distinct hosts (no single dominant host), corroborated by a utm_term SEO-redirector link and/or links parked on free/disposable content hosts. This is the 'free document/template' SEO phishing PDF family, which ranks for search queries and routes users into payload/redirect chains, rather than a normal document citation pattern. The PDF itself carries no exploit — the risk is the linked destinations.
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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://chcial.ru/pbw?utm_term=partituras+para+banda+sinaloense+gratis+2017 PDF link annotation
- https://mefinijusigoti.weebly.com/uploads/1/3/4/4/134499215/070fc896a627.pdfIn PDF document text
- https://nusubilumib.weebly.com/uploads/1/3/5/3/135347333/7c7ae2fc.pdfIn PDF document text
- https://cdn-cms.f-static.net/uploads/4446166/normal_6015df519475e.pdfIn PDF document text
- https://cdn-cms.f-static.net/uploads/4444622/normal_6028a6edd903f.pdfIn PDF document text
- https://kemovovem.weebly.com/uploads/1/3/1/4/131408999/6722672.pdfIn PDF document text
- https://cdn-cms.f-static.net/uploads/4412778/normal_601b5563f10cc.pdfIn PDF document text
- https://cdn-cms.f-static.net/uploads/4405904/normal_602a89f63a193.pdfIn PDF document text
- https://cdn-cms.f-static.net/uploads/4481520/normal_601faa66a231a.pdfIn PDF document text
- https://vikaworapelesob.weebly.com/uploads/1/3/4/7/134702945/22e3ca4bfb.pdfIn PDF document text
- https://static.s123-cdn-static.com/uploads/4413125/normal_5fc7f17a8d5f1.pdfIn PDF document text
- https://cdn-cms.f-static.net/uploads/4371003/normal_600bf283447f1.pdfIn PDF document text
- https://static.s123-cdn-static.com/uploads/4486987/normal_60079ce0c44f2.pdfIn PDF document text
- https://static.s123-cdn-static.com/uploads/4412778/normal_5fd0631b0e967.pdfIn PDF document text
- https://fubapisa.weebly.com/uploads/1/3/1/4/131406294/guxorilibita_gajawadiwupeg_fuvovij.pdfIn PDF document text
- https://static.s123-cdn-static.com/uploads/4375521/normal_6001a6faa5a3a.pdfIn PDF document text
- https://cdn-cms.f-static.net/uploads/4366050/normal_5fd76b05e8fb3.pdfIn PDF document text
- http://www.ascendercorp.com/In PDF document text
- http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
- https://uploads.strikinglycdn.com/files/51cbaf90-3450-4e05-9d5e-0f8b5a3818ea/the_essential_homer_stanley_lombardo_free.pdfIn PDF document text
- http://papoxuva.pbworks.com/w/file/fetch/144422760/9449357265.pdfIn PDF document text
- http://giresizuloki.pbworks.com/w/file/fetch/144434451/57803980130.pdfIn PDF document text
- https://uploads.strikinglycdn.com/files/7ed95c64-eff5-4cea-81e6-72892ad62488/sadizugagubovutazejo.pdfIn PDF document text
- http://ziduzobif.pbworks.com/w/file/fetch/144437097/guitar_tab_pro.pdfIn PDF document text
- https://uploads.strikinglycdn.com/files/64eb09e7-ea1d-4551-9d44-abc134005e81/vemiroduradijedifisewe.pdfIn PDF document text
- https://uploads.strikinglycdn.com/files/7cecff32-ccee-455e-a25b-53377aee0681/34532632611.pdfIn PDF document text
- https://uploads.strikinglycdn.com/files/b36a23eb-9580-41ab-a28d-a6ceaf1a7c62/77600327167.pdfIn PDF document text
- http://xojifot.pbworks.com/w/file/fetch/144423897/the_curious_case_of_benjamin_button_storyline.pdfIn PDF document text
- http://tagexoba.pbworks.com/w/file/fetch/144422745/what_to_do_if_your_sharp_tv_wont_turn_on.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_off00027a4e.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x27A4E | 5676 bytes |
SHA-256: 4cba44bc5024aaa1955f5af27e73f3a0e408959c20010cdbcc2b904541b8ee97 |
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font_01_sfnt_off00028db1.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x28DB1 | 10708 bytes |
SHA-256: 2a259556196d6e7114082fa4ed5d33e049fe97b7c7b69af1ef843878672bb592 |
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