MALICIOUS
126
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1059.007 JavaScript
The PDF contains numerous embedded URLs, with a high-confidence ML classifier and ClamAV detection indicating malicious intent. The heuristic 'PDF_SEO_DISPOSABLE_LINK_FARM' suggests the document is designed to host many links on disposable domains, likely to obscure malicious activity. The primary malicious URL identified is https://bologen.ru/strik?utm_term=ap+literature+multiple+choice+pdf+2018, which is likely used to deliver a secondary payload or redirect to a phishing site.
Machine Learning
- Nyx PDF Classifier malicious score 0.9994
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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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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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://bologen.ru/strik?utm_term=ap+literature+multiple+choice+pdf+2018 PDF link annotation
- https://cdn-cms.f-static.net/uploads/4408990/normal_602f212ef2e1a.pdfIn PDF document text
- https://cdn-cms.f-static.net/uploads/4462980/normal_600e3a6cc3480.pdfIn PDF document text
- https://cdn.sqhk.co/zedazisem/jhEKEjc/the_sculptor_s_funeral_summary.pdfIn PDF document text
- http://bossyonlinex.com/fluke_1507_price_ukdtnpv.pdfIn PDF document text
- https://cdn-cms.f-static.net/uploads/4500882/normal_60130c86dce6f.pdfIn PDF document text
- http://badge-verification-center.com/85289428836ilmz9.pdfIn PDF document text
- http://zuzatew.medianewsonline.com/69017367981.pdfIn PDF document text
- http://help-bluebadgecustomer.com/219805627407hufa.pdfIn PDF document text
- https://cdn.sqhk.co/birugafomafo/aifQptc/sapozosimelelipidot.pdfIn PDF document text
- https://cdn.sqhk.co/munoforifuso/bigJDje/xbox_360_controller_for_fortnite.pdfIn PDF document text
- http://vuwefedope.sportsontheweb.net/mipubovoli.pdfIn PDF document text
- https://cdn.sqhk.co/datolabevev/hgjaQhj/73782118269.pdfIn PDF document text
- http://pekibexuvipeve.scienceontheweb.net/tesowupuvudurijerozapeg.pdfIn PDF document text
- https://cdn.sqhk.co/vefusujix/hfijjcy/download_gunbird_2_mod_apk.pdfIn PDF document text
- http://www.ascendercorp.com/In PDF document text
- http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
- http://zogadawedalifap.onlinewebshop.net/sobumizikiruxaravezadezu.pdfIn PDF document text
- https://s3.amazonaws.com/fedojigudaj/magic_chef_gas_stove_replacement_burners.pdfIn PDF document text
- https://uploads.strikinglycdn.com/files/7a570cc7-531f-42a7-aafa-33bbf3712034/ponilarezovom.pdfIn PDF document text
- https://s3.amazonaws.com/wezukep/tl-wr841n_wifi_default_password.pdfIn PDF document text
- http://rabatelekovufar.myartsonline.com/27950043359.pdfIn PDF document text
- https://uploads.strikinglycdn.com/files/b9564cd2-92b2-43d8-a46f-49539345d530/rudutikexefizakakeza.pdfIn PDF document text
- https://s3.amazonaws.com/bubeto/au_clair_de_la_lune_ukulele_debutant.pdfIn PDF document text
- https://uploads.strikinglycdn.com/files/42674abc-9d5b-4ab7-a2f6-d56ea50e88ce/zewipebuwugobikaz.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_off00010a39.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x10A39 | 5724 bytes |
SHA-256: dc780943b64693292c9c258ea763467ed99766cebc1d7c4faee0af871994beea |
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font_01_sfnt_off00011d8a.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x11D8A | 12572 bytes |
SHA-256: 24573369cb29ed54272c24e68121863f502da991ada4ba56bdf6bdff057fc3f9 |
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font_02_sfnt_off00014807.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x14807 | 16036 bytes |
SHA-256: 149cab45689013e99d1aa520d2e5234663aa5d8577b6aae5e423b5d60aeda4c1 |
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