Malicious PDF — malware analysis report

Static analysis result for SHA-256 20578639973ead9e…

MALICIOUS

PDF

39.8 KB Created: 2020-11-01 02:21:38 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-07-19
MD5: 4966f485439eeb76ce638010ae1c7918 SHA-1: a486ecc6237b1692e9bbebdf9b8d2a0488aa5d7a SHA-256: 20578639973ead9eaf7b4c23d4907459d5cb36c858896f1e6373695279a5b60e
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://ttraff.com/123?keyword=pba+slam+apk+mod In PDF document text
    • https://cdn-cms.f-static.net/uploads/4368750/normal_5f91851bf0779.pdfIn PDF document text
    • https://susetizumuru.weebly.com/uploads/1/3/4/4/134461935/4228021.pdfIn PDF document text
    • https://s3.amazonaws.com/sazixipame/sasegodoxenuwojomajuneb.pdfIn PDF document text
    • https://mogijoduvide.weebly.com/uploads/1/3/0/8/130814471/nibowozodi_raman_xuwebovojevokom.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4386822/normal_5f9dfb6970737.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4366311/normal_5f8f95f197711.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4371536/normal_5f9728cf1ba2a.pdfIn PDF document text
    • https://s3.amazonaws.com/wuniku/bank_of_america_plano_tx_jobs.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4366305/normal_5f8cccff6a985.pdfIn PDF document text
    • https://s3.amazonaws.com/toliwudalamem/71145641811.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4427091/normal_5f9994cc7dca7.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4371505/normal_5f8c1720be01f.pdfIn PDF document text
    • http://www.ascendercorp.com/In extracted file (font_00_sfnt_off00005e52.bin)
    • http://www.ascendercorp.com/typedesigners.htmlIn extracted file (font_00_sfnt_off00005e52.bin)
    • https://cdn.shopify.com/s/files/1/0484/3097/3080/files/is_not_an_enclosing_class_android_fragment.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0268/8804/4725/files/guvajokiduwamesa.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/f657dd2a-d598-491d-879c-5646c620d401/muxapavamubaxos.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_off00005e52.bin)

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00005e52.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x5E52 5216 bytes
SHA-256: bb15035bb08c956bde35ed0bfb62a9ca4bb5288a16f8f029ef20c651986f33e3
font_01_sfnt_off00006ff4.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6FF4 10272 bytes
SHA-256: 71f22909ff655b3450a08d411b9ba94a6b7fe1b9c645b7f4f5736d843e8c6b57