MALICIOUS
184
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1059.007 JavaScript
The PDF contains multiple embedded links, with at least one identified as a malicious redirector. The ML classifier and ClamAV detection strongly indicate malicious intent. The document body, though heavily obfuscated, contains references to wkhtmltopdf and a date, suggesting it was generated programmatically to host these links. The presence of numerous links on disposable hosting further supports a phishing or malware distribution scheme.
Machine Learning
- Nyx PDF Classifier malicious score 0.9996
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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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/strik?utm_term=what+happens+when+you+overcharge+a+lead+acid+battery In PDF document text
- https://cdn-cms.f-static.net/uploads/4463002/normal_6015fedc05d76.pdfIn PDF document text
- https://cdn.sqhk.co/rufopunuk/hfPv0hj/unicorn_cake_tutorial_decorated_with_buttercream.pdfIn PDF document text
- https://static.s123-cdn-static.com/uploads/4365626/normal_5fff5416aa215.pdfIn PDF document text
- http://tulavesew.getenjoyment.net/bahra_mv_cables_catalogue.pdfIn PDF document text
- https://cdn.sqhk.co/pawosuku/1pgcCgf/69605210975.pdfIn PDF document text
- https://cdn-cms.f-static.net/uploads/4446395/normal_601365cc75aba.pdfIn PDF document text
- https://cdn-cms.f-static.net/uploads/4413462/normal_5fe60b5cb5512.pdfIn PDF document text
- https://static.s123-cdn-static.com/uploads/4405459/normal_5fe0ddcc53dd1.pdfIn PDF document text
- http://lixidepobejoji.mypressonline.com/salary_certificate_form.pdfIn PDF document text
- http://kovafuwir.getenjoyment.net/pakufa.pdfIn PDF document text
- http://gekifek.scienceontheweb.net/digiland_10.1_tablet_dl1036_case.pdfIn PDF document text
- https://cdn.sqhk.co/maduzonuxoke/clgiAje/ludo_star_2_hack_2020_download.pdfIn PDF document text
- https://cdn.sqhk.co/vixuwegijelo/hehbin3/sniper_1993_movie_trailer.pdfIn PDF document text
- https://cdn-cms.f-static.net/uploads/4463554/normal_603be206beda5.pdfIn PDF document text
- https://cdn.sqhk.co/seponidozit/jHgjghi/android_ludo_3d_multiplayer.pdfIn PDF document text
- https://cdn-cms.f-static.net/uploads/4443617/normal_604cb5e02e521.pdfIn PDF document text
- http://kokulotasuz.mygamesonline.org/47186624338.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
- https://s3.amazonaws.com/wofaxil/letter_format_uk_template.pdfIn PDF document text
- https://s3.amazonaws.com/xojafemori/financial_reporting_process_audit.pdfIn PDF document text
- http://nununad.myartsonline.com/vitonozajuzi.pdfIn PDF document text
- http://kofaxafogi.myartsonline.com/ayurvedic_weight_loss_diet_chart.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 3
Files carved from inside the sample during analysis.
| Filename | Kind | Source | Size |
|---|---|---|---|
font_00_sfnt_off0000c850.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xC850 | 5624 bytes |
SHA-256: 964bbbf1cb1fcc951b4bcf0e9aa63db1d4a102bde4dfc819a85c794bae94b4ff |
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font_01_sfnt_off0000db74.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xDB74 | 10036 bytes |
SHA-256: aaaa8a54cb27b322565ee1b145e3da672b0b661dd1c7ef5dca9b7bd8c73c57e2 |
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font_02_sfnt_off0000fdd4.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xFDD4 | 4324 bytes |
SHA-256: 05d2457133b820fa77aa358e30e9acfbad3f04c46ced9a37296d9311117db176 |
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