Malicious PDF — malware analysis report

Static analysis result for SHA-256 191fb8245d49241d…

MALICIOUS

PDF

42.4 KB Created: 2020-11-02 11:41:20 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-06-22
MD5: eaaca328e1b85a80e4bc3abfcd0cf166 SHA-1: 454467696f64afc5bc0a302de48d7f9bc4d5c33c SHA-256: 191fb8245d49241d7285e9fc71df6a9eeb0a7ad88bd832a317a8f285cf2c6d42
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://ttraff.com/123?keyword=dd+5e+ranger+spells In PDF document text
    • https://goneludolazoga.weebly.com/uploads/1/3/4/4/134488647/dofivudalawenunoxux.pdfIn PDF document text
    • https://vozutadisifik.weebly.com/uploads/1/3/1/4/131483249/1e7e9f5fd.pdfIn PDF document text
    • https://dawozonejuveru.weebly.com/uploads/1/3/4/4/134489779/3720539.pdfIn PDF document text
    • https://fiwerabonu.weebly.com/uploads/1/3/4/3/134347662/248b821229eaa.pdfIn PDF document text
    • https://gabexilo.weebly.com/uploads/1/3/4/1/134109250/25c0d65.pdfIn PDF document text
    • https://napepoxamugif.weebly.com/uploads/1/3/3/9/133997580/govitupaxikekosowo.pdfIn PDF document text
    • https://genigudepa.weebly.com/uploads/1/3/1/0/131070712/tadib-pepalitegugoj.pdfIn PDF document text
    • https://derodaju.weebly.com/uploads/1/3/1/6/131606282/2912707.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • https://s3.amazonaws.com/lakadutof/windows_7_portable_iso.pdfIn PDF document text
    • https://s3.amazonaws.com/ritoma/abdul_hameed_adam_books_free_download.pdfIn PDF document text
    • https://s3.amazonaws.com/fedufiporara/shell_script_tutorial_download.pdfIn PDF document text
    • https://s3.amazonaws.com/ganubatebedoxez/crafting_macro_ffxiv_5.2.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/a42b81ab-8321-4aac-8d63-18fb8b2ca189/xezuvifavexekube.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/334ad770-2337-49ea-b832-e6f8bc013dcd/zafazixofegegeperigafojof.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_off00006856.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6856 5252 bytes
SHA-256: 6cbb20c6333df6a85ab37d03566259f4e2c5026fae67b637ad8c420b84fde2f8
font_01_sfnt_off00007a46.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7A46 10188 bytes
SHA-256: 374bcca97c6eb377f7b03f6e79a2ea2fab8ac28a7098739ccd317385400b3407

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