MALICIOUS
224
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1059.007 JavaScript
The sample is a PDF document flagged by multiple heuristics as malicious, including a critical finding for linking to known malicious redirector infrastructure. The ML classifier also strongly indicated maliciousness. The document's content and embedded links suggest a phishing lure, potentially for credential harvesting, as indicated by the 'SE_MFA_LURE' heuristic. No scripts were extracted, but the PDF structure itself contains malicious links.
Machine Learning
- Nyx PDF Classifier malicious score 0.9998
Heuristics 6
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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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MFA / one-time-code harvesting lure high SE_MFA_LUREDocument asks for a one-time code, authenticator approval, or MFA confirmation — consistent with credential phishing kits that steal session tokens or abuse multi-factor authentication
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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/award?keyword=is+abeloth+canon In PDF document text
- https://static.s123-cdn-static.com/uploads/4446045/normal_5ffea4b24b766.pdfIn PDF document text
- http://stav-games.ru/mysql_workbench_6.3_tutorial8vfpg.pdfIn PDF document text
- http://reawont.online/bolt_and_nut_torque_chart2hj5b.pdfIn PDF document text
- https://severuzilun.weebly.com/uploads/1/3/4/7/134710190/7542191.pdfIn PDF document text
- http://help-verification.com/jenga_code_for_angry_birds_transformers_ipad1e7kx.pdfIn PDF document text
- https://cdn-cms.f-static.net/uploads/4392193/normal_60215b9297086.pdfIn PDF document text
- http://legendnat.space/bosifatutefizavardt2hz.pdfIn PDF document text
- https://dapevorejux.weebly.com/uploads/1/3/4/6/134695165/vekumarakotopa.pdfIn PDF document text
- http://luxshop21.site/campaign_finance_reports_kentuckyvd017.pdfIn PDF document text
- https://static.s123-cdn-static.com/uploads/4483873/normal_5fde9e4e0a032.pdfIn PDF document text
- https://static.s123-cdn-static.com/uploads/4369926/normal_60020141bee46.pdfIn PDF document text
- https://fadusibolene.weebly.com/uploads/1/3/4/0/134042843/df45ec561ce.pdfIn PDF document text
- https://static.s123-cdn-static.com/uploads/4476939/normal_5fc5bb89d6ab7.pdfIn PDF document text
- https://zewajala.weebly.com/uploads/1/3/1/3/131398225/xuzetoloj.pdfIn PDF document text
- http://tvoeobrazovanie.fun/conditional_wish_if_only_exercisesamdkr.pdfIn PDF document text
- http://www.ascendercorp.com/In PDF document text
- http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
- https://s3.amazonaws.com/jujadodedaruxix/don_t_worry_video_song_punjabi.pdfIn PDF document text
- https://s3.amazonaws.com/vatosolikijike/jomogudirawaxadizazi.pdfIn PDF document text
- https://s3.amazonaws.com/setigafat/kubernetes_cron_job_format.pdfIn PDF document text
- https://s3.amazonaws.com/dosalapasenow/apple_free_itunes.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_off0000e9d1.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xE9D1 | 4868 bytes |
SHA-256: 18c449384e3c276e6582b9ffcfd5395580e5b50bdab84fda5167c4d6d6694b9c |
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font_01_sfnt_off0000fa5a.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xFA5A | 10004 bytes |
SHA-256: 4539548ac319a7a2ea0c54cbf7ac1ccffd318bb8248a2d7f3cc29a10c04274b1 |
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