Malicious PDF — malware analysis report

Static analysis result for SHA-256 4e33a837a825db93…

MALICIOUS

PDF

70.9 KB Created: 2020-12-07 12:32:52 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-06-19
MD5: 173c85135dd54f20cb3c06d4bd269c3a SHA-1: 6a525dd96edf4f98f7980cb2388196adef45ccf7 SHA-256: 4e33a837a825db9304019d243efc96d7f897c29604b3e05720b06c552b48d9dd
194 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9998

Heuristics 5

  • ClamAV: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0
  • PDF links to known malicious redirector infrastructure critical PDF_MALICIOUS_REDIRECTOR_LINK
    PDF contains a clickable URI to redirector infrastructure used by a known malicious PDF SEO/adware delivery campaign. These documents typically rely on user interaction and redirect chains rather than a PDF parser vulnerability.
  • Image lure linking to an SEO redirector (free-download phishing) high PDF_SEO_UTM_REDIRECTOR_LINK
    PDF 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.
  • Object number defined twice with different bodies info PDF_DUPLICATE_OBJ_BODY_INCREMENTAL
    The 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.
  • Embedded URL info EMBEDDED_URL
    One 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://traffking.ru/wb?keyword=diuretics%20medicinal%20chemistry%20pdf In PDF document text
    • https://cdn-cms.f-static.net/uploads/4368763/normal_5fba281a2e421.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4450337/normal_5fa8f3791bd7d.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • https://static1.squarespace.com/static/5fc5c01b2e537a05ef2a3bf4/t/5fcc46ffe43f2b00a89c56f7/1607223041002/boxz_io_wiki.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/b1b7fe99-bfca-43f9-87c7-75a07454341d/michael_myers_birthday.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/db051c44-ad5b-4fb7-8e6f-ca022d89a103/toni_morrison_jazz_novel.pdfIn PDF document text
    • https://static1.squarespace.com/static/5fbce344be7cfc36344e8aaf/t/5fbdf443145a8629dc75eda1/1606284356226/miami_dade_college_spring_break_2018.pdfIn PDF document text
    • https://s3.amazonaws.com/zamuriza/roblox_song_ids_tik_tok.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/55aee55b-b04b-410c-8f68-ff9e23b91af5/roxama.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/4fef010b-2255-4976-bf2a-08a40c00f195/konanibesiga.pdfIn PDF document text
    • https://static1.squarespace.com/static/5fc5bc8d16f6d44b07dfa7da/t/5fcd514dc836a917f91c76ea/1607291214019/head_soccer_character_png.pdfIn PDF document text
    • https://s3.amazonaws.com/satudifin/arizona_desert_food_web.pdfIn PDF document text
    • https://s3.amazonaws.com/lorifawuvawot/rhythm_in_dancing.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/292a163d-4f05-435a-a1b9-3eac3113a281/ejercicios_resueltos_de_adverbios_de.pdfIn PDF document text
    • https://s3.amazonaws.com/peveziwoguxuzam/76775847408.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/fbecdcdf-ce3b-41c6-92bf-8e0eaffdce2d/free_download_mediatek_usb_vcom_android_driver.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://www.geocities.com/mitra_anirban/hobbies.htmGNUIn PDF document text
    • http://www.gnu.org/copyleft/gpl.htmRegularIn PDF document text

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000cbe1.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xCBE1 5496 bytes
SHA-256: e4dbd18b9cb6e7f59c2501df276fada7d54c733344dc11364cab9d070a005ead
font_01_sfnt_off0000de6a.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xDE6A 3720 bytes
SHA-256: 6539b129c5cd894636dc8f40f53a156c00c8f46378ab4f137c96d687a1cff6ed
font_02_sfnt_off0000e9cd.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE9CD 10672 bytes
SHA-256: 6143dfa3128f4b94b65836c3c8de1c509bf0e88fa19d9df2dc8832b94d0ec825

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