MALICIOUS
192
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1059.007 JavaScript
The PDF contains multiple heuristics indicating malicious intent, including links to known malicious redirectors and a link farm on disposable hosting. The ML classifier also strongly flagged this PDF as malicious. The presence of embedded URLs and a 'download button' lure suggests a phishing or credential harvesting attempt, likely delivered as a spearphishing attachment.
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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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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Visual download / call-to-action button lure low SE_DOWNLOAD_BUTTONDocument contains a call-to-action phrase ('Click here to download', 'Download Now', etc.) — low-signal unless other findings point to a malicious workflow
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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/strik?utm_term=ncert+maths+exercise+3.6+class+10 In PDF document text
- http://immortal-sho.club/wifaxag3fbm.pdfIn PDF document text
- https://lapaterema.weebly.com/uploads/1/3/5/3/135321282/goxerikun.pdfIn PDF document text
- https://cdn-cms.f-static.net/uploads/4451755/normal_602e47a262365.pdfIn PDF document text
- https://cdn.sqhk.co/jogepirar/icR1HN2/tabletop_games_online.pdfIn PDF document text
- https://wotudopis.weebly.com/uploads/1/3/4/6/134679731/xemakexoruvazomemeta.pdfIn PDF document text
- https://static.s123-cdn-static.com/uploads/4484632/normal_5fdd45e8537dd.pdfIn PDF document text
- https://static.s123-cdn-static.com/uploads/4471958/normal_5fe051cde2dea.pdfIn PDF document text
- https://cdn.sqhk.co/rivogigaweb/eheBgcD/41671760404.pdfIn PDF document text
- https://dopijixofovaje.weebly.com/uploads/1/3/4/6/134692352/nakawuv_riweb.pdfIn PDF document text
- https://zatiwakap.weebly.com/uploads/1/3/1/8/131871625/5603605.pdfIn PDF document text
- http://nudazizefa.22web.org/resume_format_template_canada.pdfIn PDF document text
- https://roxomikanu.weebly.com/uploads/1/3/0/8/130873860/2040048.pdfIn PDF document text
- https://static.s123-cdn-static.com/uploads/4413346/normal_6001fd7c07af6.pdfIn PDF document text
- http://www.ascendercorp.com/In PDF document text
- http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
- http://watafewajur.rf.gd/commonly_confused_words_worksheet_1_answers_usatestprep.pdfIn PDF document text
- http://lopejad.epizy.com/59342871244.pdfIn PDF document text
- http://benifolagalat.epizy.com/pitasapuzimaserupowafedol.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 3
Files carved from inside the sample during analysis.
| Filename | Kind | Source | Size |
|---|---|---|---|
font_00_sfnt_off0000e5e9.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xE5E9 | 5620 bytes |
SHA-256: 5ea2416b52f14aafd15e43f24ceb78a1d0dba1c3d390be27e9b59687ae225de1 |
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font_01_sfnt_off0000f8ed.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xF8ED | 10584 bytes |
SHA-256: 6d7a76c7b6124880046f838468cbfd55fba707823f695d9e579693126137cfb1 |
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font_02_sfnt_off00011d44.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x11D44 | 16096 bytes |
SHA-256: 61761e6c71fdd980502ce8a3a8cbf9590216241eb9eabe72fdf309a1c23cd3c2 |
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