MALICIOUS
184
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1059.007 JavaScript
The PDF contains numerous links to external websites, with a critical heuristic identifying a link to a known malicious redirector infrastructure at `https://yafferge.ru/wix?keyword=blox+music+app`. The document body, though heavily obfuscated, contains text related to "Blox music app", suggesting a lure to attract users to click on the malicious links. The ML classifier and ClamAV detection strongly indicate malicious intent.
Machine Learning
- Nyx PDF Classifier malicious score 0.9996
Heuristics 5
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ClamAV: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0 critical CLAMAV_DETECTIONClamAV detected this file as malware: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0
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PDF links to known malicious redirector infrastructure critical PDF_MALICIOUS_REDIRECTOR_LINKPDF contains a clickable URI to redirector infrastructure used by a known malicious PDF SEO/adware delivery campaign. These documents typically rely on user interaction and redirect chains rather than a PDF parser vulnerability.
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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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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://yafferge.ru/wix?keyword=blox+music+app In PDF document text
- https://nipazutilufap.weebly.com/uploads/1/3/0/7/130738662/7f53a477ed078b.pdfIn PDF document text
- https://bozadabeduli.weebly.com/uploads/1/3/4/8/134869561/xixudenebedum.pdfIn PDF document text
- http://shoppermarket.online/apache_web_server_for_windows_8wcfy5.pdfIn PDF document text
- https://static.s123-cdn-static.com/uploads/4426679/normal_5ff591583683d.pdfIn PDF document text
- https://static.s123-cdn-static.com/uploads/4496577/normal_5fcb2b3ca804b.pdfIn PDF document text
- http://supernefritroller.xyz/rojoxupesokezomeronami4y0id.pdfIn PDF document text
- https://kevelowomovozi.weebly.com/uploads/1/3/4/0/134012304/e2657da695.pdfIn PDF document text
- https://static.s123-cdn-static.com/uploads/4449769/normal_5fc71d71376a9.pdfIn PDF document text
- https://belujewirozem.weebly.com/uploads/1/3/2/6/132681559/surepaparudoj.pdfIn PDF document text
- http://covidcapsule.world/mokugkp5lp.pdfIn PDF document text
- http://itash.space/rerubifab1hd3i.pdfIn PDF document text
- http://fumuponi.22web.org/dbh_connor_theme_sheet_music.pdfIn PDF document text
- https://cdn-cms.f-static.net/uploads/4408721/normal_600e11293d995.pdfIn PDF document text
- http://stepka2016.xyz/sitigeteftac5.pdfIn PDF document text
- http://www.ascendercorp.com/In PDF document text
- http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
- http://www.daltonmaag.com/In PDF document text
- http://lekekavom.epizy.com/tavefusuzudorazebopaze.pdfIn PDF document text
- http://vodukatova.epizy.com/84063143615.pdfIn PDF document text
- http://girogabunuxumu.rf.gd/advanced_excel_in_marathi.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
- http://dejavu.sourceforge.netIn PDF document text
- http://dejavu.sourceforge.net/wiki/index.php/LicenseIn PDF document text
Extracted artifacts 4
Files carved from inside the sample during analysis.
| Filename | Kind | Source | Size |
|---|---|---|---|
font_00_sfnt_off0000f0ac.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xF0AC | 4676 bytes |
SHA-256: 2f10e2281593158d616201b6981ac773a9dc495a9130ac385e8148be3f4ef428 |
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font_01_sfnt_off00010094.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x10094 | 10644 bytes |
SHA-256: 8bce4e49b7d6afa6f39f4826bc6308952b47602eca8a5f9b16ebec47120339c6 |
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font_02_sfnt_off0001253d.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x1253D | 16312 bytes |
SHA-256: 975089639afea594160f6daa1ae948ffc4125994d61a9fd32dce02580f7b6b15 |
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font_03_sfnt_off00013ac8.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x13AC8 | 4324 bytes |
SHA-256: 0d0f64e27578eb124b8bc81c7eceacdd166e22eddd95c81328e9fbd7de2a6333 |
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