Malicious PDF — malware analysis report

Static analysis result for SHA-256 14c902cd22abe68e…

MALICIOUS

PDF

56.2 KB Created: 2020-10-25 04:41:17 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-07-17
MD5: d4f210e92fee42a57e1c8b925bde2590 SHA-1: a4bc7b17a3da07b4fb91a7747b70e2bf43899b4e SHA-256: 14c902cd22abe68ea43f8f314fc8fc82f57f7dea412cd96d24a4753f59b518b6
194 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 1.0000

Heuristics 5

  • 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://ggtraff.ru/strik?keyword=millennial+views+chart In PDF document text
    • https://s3.amazonaws.com/vavale/autobiography_of_a_coin_in_2000_words.pdfIn PDF document text
    • https://s3.amazonaws.com/xovajukoxin/budismo_zen_manual_introductorio.pdfIn PDF document text
    • https://dimaxafazeza.weebly.com/uploads/1/3/1/4/131453031/8767144.pdfIn PDF document text
    • https://penulikadima.weebly.com/uploads/1/3/1/4/131482887/vibame.pdfIn PDF document text
    • https://s3.amazonaws.com/subud/zinum.pdfIn PDF document text
    • https://s3.amazonaws.com/pazifetanegapu/43299680917.pdfIn PDF document text
    • https://s3.amazonaws.com/henghuili-files2/bulimia_nervosa_case_study.pdfIn PDF document text
    • https://s3.amazonaws.com/tetazino/43350512224.pdfIn PDF document text
    • https://s3.amazonaws.com/jemazejodep/64743637536.pdfIn PDF document text
    • https://s3.amazonaws.com/fasanag/74171104620.pdfIn PDF document text
    • https://s3.amazonaws.com/fojaxexino/ortopedia_y_traumatologia.pdfIn PDF document text
    • https://s3.amazonaws.com/bepukuba/gufolidiximifugev.pdfIn PDF document text
    • https://s3.amazonaws.com/zetare/67549421631.pdfIn PDF document text
    • https://s3.amazonaws.com/wunupalezozerud/wubaparesizomuwekoputo.pdfIn PDF document text
    • https://s3.amazonaws.com/sugaguxagu/30478079486.pdfIn PDF document text
    • http://www.ascendercorp.com/In extracted file (font_00_sfnt_off00009cbe.bin)
    • http://www.ascendercorp.com/typedesigners.htmlIn extracted file (font_00_sfnt_off00009cbe.bin)
    • https://uploads.strikinglycdn.com/files/c2014d37-5fc2-4c08-885f-3b70c2798ee4/99142663028.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/ab81e640-24ee-4372-a50b-4550534f3e41/albuquerque_high_school_website.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/83bda537-ff59-4473-a91d-36d39161f1f0/92335524348.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_off00009cbe.bin)

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00009cbe.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x9CBE 5044 bytes
SHA-256: d210cd77eb3564d5c1914f6102d6bc9aca021adb879b92bb37c0639452b23a00
font_01_sfnt_off0000ae04.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xAE04 11344 bytes
SHA-256: dc3048566a72440ea0c87f375efbf26429377e3d50a5e03455291e8fd6665263