Malicious PDF — malware analysis report

Static analysis result for SHA-256 4783706ecead1db8…

MALICIOUS

PDF

39.0 KB Created: 2020-11-01 16:11:49 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-06-20
MD5: ee09dc5c627ed65ca103f755d149041b SHA-1: 55b0f4ce21d6f758009f91bd92a5f019f58fc9a5 SHA-256: 4783706ecead1db8a68e989a5f7fa5b98c209d8093f65f10caf77391e509bb71
134 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 1.0000

Heuristics 4

  • 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://ggtraff.ru/wb?keyword=skull%20mp3%20music%20downloader%20apk In PDF document text
    • https://cdn-cms.f-static.net/uploads/4389106/normal_5f9449ea06476.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • https://cdn.shopify.com/s/files/1/0500/6127/9423/files/rhetorical_modes_of_writing.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0484/7481/6674/files/discord_gambling_bot_source_code.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/18882226-025e-416c-992e-14c7b25e7623/90453071820.pdfIn PDF document text
    • https://s3.amazonaws.com/mijedusovineti/27599299352.pdfIn PDF document text
    • https://s3.amazonaws.com/vexeliku/91234222982.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/2c650216-2220-451d-a512-2cbbf9bfd224/20628692035.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0503/1690/2583/files/when_breath_becomes_air_free.pdfIn PDF document text
    • https://s3.amazonaws.com/gozilum/85852375699.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/94ad31e1-ca81-4173-ad8a-5b47de386daf/37620447087.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0268/7300/4230/files/egg_drop_ideas_with_parachute.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

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off000059cb.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x59CB 5640 bytes
SHA-256: 4886864fe0b4cebc44abe04518df8fda76603ff513c954df0b94b57c2c964b09
font_01_sfnt_off00006d01.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6D01 10160 bytes
SHA-256: 6da0d24392797172e01027a1184c0ea64db6345d1bf3b1c36a2e8bee65861851