MALICIOUS
136
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1059.007 JavaScript
The PDF document contains a heuristic firing indicating it's a phishing lure that redirects to an external URL. The ML classifier and ClamAV also flagged this file as malicious. The embedded URL, https://leonvi.ru/strik?utm_term=how+to+understand+math+easily, is the primary indicator of compromise, likely leading to a phishing page or malware download.
Machine Learning
- Nyx PDF Classifier malicious score 0.9992
Heuristics 5
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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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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://leonvi.ru/strik?utm_term=how+to+understand+math+easily PDF link annotation
- http://kinemulawaw.sportsontheweb.net/madato.pdfIn PDF document text
- https://s3.amazonaws.com/vatakefojunib/chem_1_review_sheet.pdfIn PDF document text
- https://s3.amazonaws.com/lizuseguwix/begopuvines.pdfIn PDF document text
- https://s3.amazonaws.com/puretulenuza/blank_board_serializer.pdfIn PDF document text
- https://s3.amazonaws.com/sisaxu/interpretation_of_financial_statements.pdfIn PDF document text
- https://cdn-cms.f-static.net/uploads/4500904/normal_6051e7428b11b.pdfIn PDF document text
- http://mujabelor.mywebcommunity.org/kadivobegovotojupad.pdfIn PDF document text
- https://s3.amazonaws.com/tajimipojimo/ganabo.pdfIn PDF document text
- http://nizavevorupuj.mywebcommunity.org/south_carolina_drivers_license_practice_exam.pdfIn PDF document text
- https://static.s123-cdn-static.com/uploads/4404488/normal_5ff038fecec93.pdfIn PDF document text
- https://cdn-cms.f-static.net/uploads/4482228/normal_601e747a296ca.pdfIn PDF document text
- https://cdn-cms.f-static.net/uploads/4407986/normal_6018560fc9100.pdfIn PDF document text
- http://www.ascendercorp.com/In PDF document text
- http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
- http://vodobugatusexa.epizy.com/1st_rank_raju_kannada_film_songs.pdfIn PDF document text
- http://lufevexos.atwebpages.com/linux_administration_mumbai_university.pdfIn PDF document text
- http://zirutabu.myartsonline.com/calendario_noviembre_2020_mexico.pdfIn PDF document text
- http://madanekobovuge.epizy.com/11030725645.pdfIn PDF document text
- http://rijemow.onlinewebshop.net/519472782.pdfIn PDF document text
- http://komoxam.rf.gd/cracking_codes_with_python_book.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
- https://savannah.gnu.org/projects/freefont/In PDF document text
- http://www.gnu.org/licenses/In PDF document text
- http://www.gnu.org/copyleft/gpl.htmlIn 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 5
Files carved from inside the sample during analysis.
| Filename | Kind | Source | Size |
|---|---|---|---|
font_00_sfnt_off00016eb4.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x16EB4 | 6416 bytes |
SHA-256: 62deedb54aaef669db635f4ef87d4bda5d475a8bf20633d6b56d9e4ab12fd410 |
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font_01_sfnt_off00017e89.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x17E89 | 5220 bytes |
SHA-256: 06718d9baa9d61d65d78363877c1bdd8d1e830ab9c977752a48a62bf120a5c81 |
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font_02_sfnt_off00019029.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x19029 | 2896 bytes |
SHA-256: bea2bba35ccd42c435f82bf4375d998ceef9a01471ffbdc4bdce19650bec9ea7 |
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font_03_sfnt_off00019b73.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x19B73 | 12480 bytes |
SHA-256: c193adaa07702bd336c3365dab6330a172e7992a7673d52e2cc65eb1b8993f1e |
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font_04_sfnt_off0001c5b8.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x1C5B8 | 16076 bytes |
SHA-256: e2237bcfba2ad8a8c6238a86fe0fbf220db2b991d1f402b1dc0856d9f6c5f988 |
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