Malicious PDF — malware analysis report

Static analysis result for SHA-256 d07ffb50406f0216…

MALICIOUS

PDF

43.7 KB Created: 2020-11-09 11:27:12 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-04-06
MD5: d095ec0b64f49cfe6003d13ba463552c SHA-1: f2323db69a18ea25b385ae87ed270ea3dd8ddee4 SHA-256: d07ffb50406f0216dce175e0d333ea68c51cbae4705ae27cf724000334b6f322
202 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 1.0000

Heuristics 6

  • 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.
  • Visual download / call-to-action button lure low SE_DOWNLOAD_BUTTON
    Document contains a call-to-action phrase ('Click here to download', 'Download Now', etc.) — low-signal unless other findings point to a malicious workflow
  • 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/123?keyword=download+whatsapp+apk+and+install In PDF document text
    • https://s3.amazonaws.com/fulazelof/19136334560.pdfIn PDF document text
    • https://jezulusawuse.weebly.com/uploads/1/3/4/0/134000263/vogolaboga-puneve-fuwuguxusubozap-zexuwo.pdfIn PDF document text
    • https://s3.amazonaws.com/wexukufedepim/narcoland_book.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4373983/normal_5f8b148dbd676.pdfIn PDF document text
    • https://s3.amazonaws.com/derefe/the_day_the_voices_stopped.pdfIn PDF document text
    • https://s3.amazonaws.com/wefadep/learn_english_lab_tenses.pdfIn PDF document text
    • https://s3.amazonaws.com/napoledunadigo/ap_biology_campbell_9th_edition_notes.pdfIn PDF document text
    • https://s3.amazonaws.com/mibiwivanetuj/54485736642.pdfIn PDF document text
    • https://mesipaku.weebly.com/uploads/1/3/1/3/131383407/925d696447.pdfIn PDF document text
    • https://togimapobeno.weebly.com/uploads/1/3/4/6/134649298/kutateva-neraweziwiro-nezijuvajat.pdfIn PDF document text
    • http://www.ascendercorp.com/In extracted file (font_00_sfnt_off00006054.bin)
    • http://www.ascendercorp.com/typedesigners.htmlIn extracted file (font_00_sfnt_off00006054.bin)
    • http://www.daltonmaag.com/In extracted file (font_02_sfnt_off000093f2.bin)
    • https://uploads.strikinglycdn.com/files/d6a8cfc4-c0fa-465c-8ec5-56a16d435b30/mebowig.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/f88a744c-0ea1-45d1-8fa7-a8e410708876/zategi.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_off00006054.bin)

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00006054.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6054 4776 bytes
SHA-256: e2e9271161b2bc0ba73fc89e0bbabfebbfcf743c0c803d249e597dc314d29708
font_01_sfnt_off00007093.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7093 10464 bytes
SHA-256: 06eb5a6c88bead55bc40b1d7b21ff45fac857ceefdae8942b9d2851b2458b1fc
font_02_sfnt_off000093f2.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x93F2 4324 bytes
SHA-256: d1f4a20f0e35a0564be54678b929bb8c711862c507f070c2b9a6abea8daf4378