MALICIOUS
156
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1059.007 JavaScript
The PDF contains numerous external links, with a critical heuristic identifying a link farm designed to boost SEO. One of the primary external URIs, 'https://vilenefex.ru/award?keyword=homogeneous+and+heterogeneous+catalysis+pdf', is flagged as suspicious. The ClamAV detection and ML classifier strongly indicate malicious intent, likely for phishing or distributing further malware. No scripts were extracted, but the PDF structure itself is used to host a large number of links.
Machine Learning
- Nyx PDF Classifier malicious score 0.9990
Heuristics 5
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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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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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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://vilenefex.ru/award?keyword=homogeneous+and+heterogeneous+catalysis+pdf
- http://nesobaka3.xyz/the_authority_of_the_believergwuoe.pdf
- http://easterthjg.com/how_to_use_knitting_machine_ribberjqj20.pdf
- http://crawlmqyu.space/992369612690cd7y.pdf
- http://www.ascendercorp.com/
- http://www.ascendercorp.com/typedesigners.html
- https://uploads.strikinglycdn.com/files/1f4346a7-6c1b-4c07-8251-a73c548e257c/impresora_brother_mfc-j615w_manual.pdf
- https://fc9a8e44-b853-4378-b933-957c6fa9ceda.filesusr.com/ugd/1da781_f6866cb9db654572a592b4425b513fb1.pdf?index=true
- https://s3.amazonaws.com/wufujudisu/jogos_xbox_360_rgh.pdf
- https://a26b494c-4f54-4b9d-aaa3-e02d462d315a.filesusr.com/ugd/c6268f_a9bddb9df87c45f89728b5b684fd1af0.pdf?index=true
- https://s3.amazonaws.com/xoferuzu/neil_degrasse_tyson_quotes_about_learning.pdf
- https://s3.amazonaws.com/mejados/modern_biology_textbook_online.pdf
- https://s3.amazonaws.com/xuzed/defiant_castle_keypad_deadbolt_manual.pdf
- https://e40da922-b0e4-44be-9878-2d4898ccab21.filesusr.com/ugd/3a38e0_a042d7c9067440f78502e8436409785d.pdf?index=true
- https://uploads.strikinglycdn.com/files/8315a057-8f35-4899-b367-ef10c67b28d1/el_viaje_definitivo_analisis_estilistico.pdf
- https://uploads.strikinglycdn.com/files/1c45f48f-99e2-409a-9756-22887b7692b7/what_are_the_rules_of_internet_etiquette.pdf
- https://s3.amazonaws.com/sirilagewuga/flowers_in_the_attic_movie_2014_ending.pdf
- https://c63ca81c-6df4-4ec3-bc2e-8508f29a6879.filesusr.com/ugd/d48fe3_1f9f291b17c84e5b87ba2f38d7dd37e7.pdf?index=true
- https://2a04f01a-7147-4793-98aa-b59dc93e6f96.filesusr.com/ugd/efcdeb_ae07c08980f3445582fcac2dad3eeb56.pdf?index=true
- https://528a8416-53f4-4693-bcf0-540471887af1.filesusr.com/ugd/c3aa89_78b58109642740be8908b48265746da1.pdf?index=true
- https://b89c0965-50b5-483f-b67e-52f573158f4f.filesusr.com/ugd/1e222e_1b4b495e20ea4fac8f25c1a834f80042.pdf?index=true
- https://51f47fa2-20f7-4ec4-bb91-8ae4aee689b4.filesusr.com/ugd/917232_8b7983fff79c4acfaff89aabe8ec2033.pdf?index=true
- https://uploads.strikinglycdn.com/files/0c761e99-074a-4c53-8405-c146c8677cd7/67386724460.pdf
- https://ab2ac9d4-4772-4872-829d-c19fde0a4f90.filesusr.com/ugd/b919b3_23099a359751498e87e6c2facde0eefe.pdf?index=true
- https://uploads.strikinglycdn.com/files/2b8383b4-47f2-4a8e-a547-4718865c8da4/gobigivarusuzekuju.pdf
- https://uploads.strikinglycdn.com/files/369d557a-9f79-43d9-ba33-fffdda77b683/main_theme_of_hills_like_white_elephants.pdf
- https://uploads.strikinglycdn.com/files/a2807089-f569-4756-aa38-f8b104093961/book_report_template_high_school.pdf
- https://9ef77391-fdd1-48d8-ba15-364b07375333.filesusr.com/ugd/ebefdf_9ef295075faf4506858cee379102e00d.pdf?index=true
- http://www.w3.org/1999/02/22-rdf-syntax-ns#
- http://purl.org/dc/elements/1.1/
- http://ns.adobe.com/pdf/1.3/
- http://ns.adobe.com/xap/1.0/
- http://ns.adobe.com/xap/1.0/mm/
- http://ns.adobe.com/xap/1.0/rights/
- http://scripts.sil.org/OFL
- http://dejavu.sourceforge.net
- http://dejavu.sourceforge.net/wiki/index.php/License
Extracted artifacts 3
Files carved from inside the sample during analysis.
| Filename | Kind | Source | Size |
|---|---|---|---|
font_00_sfnt_off0000e727.binb42a23eebe8d063367647c34df39ae392b49e1be35a2d3a36be7eb0b2967f27b |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xE727 | 5632 bytes |
font_01_sfnt_off0000fa2e.bin8146d18a8a3bc55347a5860d0c7f640ca4d6503d2fe48dc08fc0f880d58a444a |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xFA2E | 10104 bytes |
font_02_sfnt_off00011cf9.bined4cacdf5c35d6dc2bb66b387bfa6ca3961900a937a59046fa816361335c7d48 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x11CF9 | 16164 bytes |
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