MALICIOUS
196
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1059.007 JavaScript
The PDF file contains numerous external links, with a significant heuristic firing indicating a link farm designed for SEO manipulation and phishing lures. The primary malicious URL identified is 'https://bologen.ru/wix?keyword=uf+apk+faculty', which is likely used to redirect users to a malicious site. The ML classifier and ClamAV detection strongly indicate malicious intent, classifying it as a phishing trojan.
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://bologen.ru/wix?keyword=uf+apk+faculty PDF link annotation
- http://shoop-ft.ru/66362258765qglgx.pdfIn PDF document text
- http://gladkoe-telo.xyz/remotr_remote_desktop_apktdllw.pdfIn PDF document text
- https://nitevugumosu.weebly.com/uploads/1/3/4/5/134526644/gagazebujo.pdfIn PDF document text
- https://bizitaninajoki.weebly.com/uploads/1/3/5/3/135316521/3734660.pdfIn PDF document text
- http://itwomen.space/bootstrap_studio_4_freewpoqe.pdfIn PDF document text
- http://znakomstva18x.site/english_grammar_corrector_free_downloadvxyyb.pdfIn PDF document text
- https://xefapakofaguwa.weebly.com/uploads/1/3/1/1/131164324/xolebuber.pdfIn PDF document text
- http://www.ascendercorp.com/In PDF document text
- http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
- https://8b8c7005-3af0-45a1-8e5b-a6902caa9335.filesusr.com/ugd/dbd7d9_74c9b6137a5f45b4b1a9cbc85d119797.pdf?index=trueIn PDF document text
- https://s3.amazonaws.com/teximikamukubo/company_annual_dinner_invitation_card_template.pdfIn PDF document text
- https://4eb83289-b313-4542-b68c-79a1d4783db4.filesusr.com/ugd/f6336d_28b85935e8134bfc85db992e96e46dad.pdf?index=trueIn PDF document text
- https://d70b1dc8-7d09-4148-9854-e6a7cae1b87b.filesusr.com/ugd/5899d5_799999b1aed944458ad7246cdc1abe5d.pdf?index=trueIn PDF document text
- https://2ac8321c-28d8-41c8-ac7a-99137a6fe030.filesusr.com/ugd/157ee0_c15e180e24c14d75aa6b735c2b2566e3.pdf?index=trueIn PDF document text
- https://s3.amazonaws.com/rebesudanolo/62776911585.pdfIn PDF document text
- https://s3.amazonaws.com/xofalepelala/picsart_app_free_for_windows_8.pdfIn PDF document text
- https://s3.amazonaws.com/wujafivabipo/84432500072.pdfIn PDF document text
- https://s3.amazonaws.com/wupuxus/6338968040.pdfIn PDF document text
- https://s3.amazonaws.com/tizowodifi/reliance_jio_annual_report_2019.pdfIn PDF document text
- https://s3.amazonaws.com/vuforewebub/satuxivazof.pdfIn PDF document text
- https://s3.amazonaws.com/zerejibixupav/15400691154.pdfIn PDF document text
- https://s3.amazonaws.com/jumedemimo/homologous_structures_mammalian_forelimbs_worksheet_answers.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_off0000ea2c.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xEA2C | 4892 bytes |
SHA-256: 4f2eff936a61fbece1b9b47b53773cd9ad23fb713466b7fbb9dddb1b62b205fd |
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font_01_sfnt_off0000fb02.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xFB02 | 11112 bytes |
SHA-256: 67db14b3d67d32efae24d9061f42f71aa4465bc7ad1b63975db0933ee7b4113d |
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font_02_sfnt_off00012144.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x12144 | 16036 bytes |
SHA-256: 35d3440dae1ebc896564e4e6f70ea95aa3a30a1ac603c7fffbb21b68b8b72e2f |
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