MALICIOUS
196
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1059.007 JavaScript
The PDF file contains numerous external links, many of which point to SEO redirectors and link farms, indicating a phishing or malware distribution attempt. The presence of a ClamAV detection for 'Pdf.Phishing.Trojan' and ML classification further supports its malicious nature. The embedded URLs suggest an attempt to redirect users to malicious sites, likely for credential harvesting or second-stage payload delivery.
Machine Learning
- Nyx PDF Classifier malicious score 0.9997
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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Small PDF contains mass external PDF link farm critical PDF_SEO_LINK_FARMSmall PDF contains many clickable external PDF links, mostly clustered on one host. This matches generated SEO/link-farm PDF carriers used to route users into malicious or unwanted-software delivery chains, rather than a normal document citation pattern.
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Image lure linking to an SEO redirector (free-download phishing) high PDF_SEO_UTM_REDIRECTOR_LINKPDF embeds an image with little or no body text and a clickable link to a multi-word utm_term / FeedBurner-proxied SEO redirector — the 'free ebook / solution-manual / document download' phishing family that ranks for natural-language search queries and routes the user into a payload/redirect chain. The PDF carries no exploit; the risk is the linked destination. Flagged structurally (image lure + SEO redirector) so it does not depend on a ClamAV/ML signature, and regardless of how many filler text pages the lure carries.
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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://xajibur.ru/strik?utm_term=examenes+biologia+3+eso+resueltos+oxford PDF link annotation
- https://mebolosedam.weebly.com/uploads/1/3/6/0/136009811/2191446.pdfIn PDF document text
- https://zetojaxonafavop.weebly.com/uploads/1/3/5/3/135309172/golifoneni.pdfIn PDF document text
- https://s3.amazonaws.com/nilafafakem/what_is_electrical_system_in_automobile.pdfIn PDF document text
- https://s3.amazonaws.com/sesafefanulokam/42305478836.pdfIn PDF document text
- https://s3.amazonaws.com/gomaxod/python_online_training_classes.pdfIn PDF document text
- https://s3.amazonaws.com/gebukil/76413664264.pdfIn PDF document text
- https://s3.amazonaws.com/xedewofuretujo/6722859619.pdfIn PDF document text
- https://s3.amazonaws.com/kitakilesa/dell_precision_t7500_bios_settings.pdfIn PDF document text
- https://s3.amazonaws.com/lowebemuwojiso/agile_software_development_principles_patterns_and_practices_github.pdfIn PDF document text
- https://vuvopovakufusoz.weebly.com/uploads/1/3/4/3/134342968/sijakizogajife-lekuwaxaxebozat-pobiw-fifobenat.pdfIn PDF document text
- https://s3.amazonaws.com/sitok/98736850994.pdfIn PDF document text
- http://fikunigogijori.22web.org/zosobawivitag.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/aa572b13-135a-44a1-b157-d227d161ba32/hajj_rules_2021.pdfIn PDF document text
- http://wizomavo.epizy.com/tan_delta_test_of_transformer_bushing.pdfIn PDF document text
- http://naxilolebepup.epizy.com/piletemariwatesulo.pdfIn PDF document text
- http://nilikejavovop.rf.gd/uc_browser_java_versi_9._5.pdfIn PDF document text
- https://uploads.strikinglycdn.com/files/93146049-9d1c-409b-94d7-ea6a4386299d/xotadefudeb.pdfIn PDF document text
- http://zafipuzekamezu.epizy.com/ruzagurukimomunabosus.pdfIn PDF document text
- http://bolozenafo.rf.gd/great_gatsby_chapter_7.pdfIn PDF document text
- https://uploads.strikinglycdn.com/files/878de32d-5007-4f3e-835e-84aa34bc371f/vadirirerimu.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_off0000ea0c.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xEA0C | 5556 bytes |
SHA-256: 8a560871c717effd8d044d423251fbab267f3e9458873045b3dc1d319b3ceaab |
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font_01_sfnt_off0000fce3.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xFCE3 | 12260 bytes |
SHA-256: a450bc46008c8171793ffebc1d201421c46174042a62d739a133e0fd42dcaec7 |
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font_02_sfnt_off000124d1.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x124D1 | 16076 bytes |
SHA-256: d286e8b4d1cdafc5f769987bdccf7a6368ad55d0d3b8f98fd56bc2ae223999f8 |
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