Malicious PDF — malware analysis report

Static analysis result for SHA-256 14c4b53cc21680a3…

MALICIOUS

PDF

59.3 KB Created: 2020-12-17 11:39:34 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-07-17
MD5: 79bcb44a6ada8f73cdf51d38f68645f2 SHA-1: 4544bc608d9232592c0fc07169f7ef8f77355c72 SHA-256: 14c4b53cc21680a3292afbbce255e610f7e1599de295ca68d7ab36bcd27c58be
254 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9996

Heuristics 6

  • ClamAV: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0
  • 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.
  • Small PDF contains mass external PDF link farm critical PDF_SEO_LINK_FARM
    Small 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.
  • 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://trafffi.ru/123?utm_term=intro+to+matlab+7+for+engineers In PDF document text
    • https://s3.amazonaws.com/susopuzupure/adjectives_worksheets_for_grade_6.pdfIn PDF document text
    • https://s3.amazonaws.com/bulozor/can_t_stop_this_feeling_sheet_music.pdfIn PDF document text
    • https://s3.amazonaws.com/timeziso/96825513184.pdfIn PDF document text
    • https://s3.amazonaws.com/minegikukovel/ssc_2018_calendar.pdfIn PDF document text
    • https://s3.amazonaws.com/fowonaxul/vipejivuxifeditewav.pdfIn PDF document text
    • https://bugitepekasi.weebly.com/uploads/1/3/4/6/134669175/7950839.pdfIn PDF document text
    • https://s3.amazonaws.com/voxazedisula/lean_canvas_powerpoint_template.pdfIn PDF document text
    • https://s3.amazonaws.com/juvetaso/89640710000.pdfIn PDF document text
    • http://www.ascendercorp.com/In extracted file (font_00_sfnt_off0000ae6c.bin)
    • http://www.ascendercorp.com/typedesigners.htmlIn extracted file (font_00_sfnt_off0000ae6c.bin)
    • https://static1.squarespace.com/static/5fc5d7ae88c99b6d37c9377e/t/5fd092d175f5e5048574a3cb/1607504593772/super_mario_world_emulator_iphone.pdfIn PDF document text
    • https://static1.squarespace.com/static/5fc0ecedbf71053ccb1052a5/t/5fc237d7e6d49a06bbdc29af/1606563799782/ar_380-40.pdfIn PDF document text
    • https://static1.squarespace.com/static/5fbce344be7cfc36344e8aaf/t/5fbcf9c28cb11b25c09bb954/1606220227090/57439033953.pdfIn PDF document text
    • https://static1.squarespace.com/static/5fbce344be7cfc36344e8aaf/t/5fbe6bf33c6ccf69f33016e2/1606314995718/pit_boss_electric_smoker_cover.pdfIn PDF document text
    • https://static1.squarespace.com/static/5fc66f6492c50b1a1e9d5f03/t/5fc9ef12e262c0159465ca99/1607069463361/geometry_dash_2._2_unlocked_apk_download.pdfIn PDF document text
    • https://static1.squarespace.com/static/5fc29c38ff13940aa24a8d75/t/5fc56d2a9d7936484045242c/1606774061661/nupanakenozeze.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 extracted file (font_00_sfnt_off0000ae6c.bin)

Related samples 8

Ranked by shared artifacts, heuristics, extracted URLs, CVEs, and signatures.

Full JSON: related samples API

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000ae6c.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xAE6C 5244 bytes
SHA-256: 22a76dc48feaa5bf6de61f571904791c9a1041299b5ba417648e9121cc0cc5c1
font_01_sfnt_off0000c02e.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xC02E 9444 bytes
SHA-256: 953574c1b851a3a9103e29eb6663169edf05f556a64c512082d96751ca8826eb

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