Malicious PDF — malware analysis report

Static analysis result for SHA-256 fc8efb566f3fce2a…

MALICIOUS

PDF

517.6 KB Created: 2023-05-28 20:54:52 +03:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 5.15.4) First seen: 2026-06-10
MD5: 5b3f3073b01b57297750e76cbaf77e5a SHA-1: 7317067ef8917fb2eceaf0c6c733c17e7eb64dfa SHA-256: fc8efb566f3fce2a34b6feb1f07c638827f6ad14f136518de03d76a259639c76
136 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.8905

Heuristics 5

  • ClamAV: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0
  • 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.
  • External URI info PDF_URI
    PDF contains an external URL action
  • 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://janefumufi.oalroax.com/gdy?utm_term=easy+80s+movie+trivia+questions+with+answers PDF link annotation
    • http://www.bitstream.comIn PDF document text
    • https://img1.wsimg.com/blobby/go/671d8571-de15-47bb-8cd8-b624751dbe0e/downloads/99779471729.pdfIn PDF document text
    • https://img1.wsimg.com/blobby/go/671d8571-de15-47bb-8cd8-b624751dbe0e/downloads/wheelbarrow_inner_tube_size_guide.pdfIn PDF document text
    • https://img1.wsimg.com/blobby/go/d37a9b24-bc42-4cb1-ab3b-3d1b21b01aec/downloads/11775058930.pdfIn PDF document text
    • https://img1.wsimg.com/blobby/go/7c4463e3-109c-48af-b9be-98e22cdf2116/downloads/73097787706.pdfIn PDF document text
    • https://img1.wsimg.com/blobby/go/7c4463e3-109c-48af-b9be-98e22cdf2116/downloads/kekedulalita.pdfIn PDF document text
    • https://img1.wsimg.com/blobby/go/671d8571-de15-47bb-8cd8-b624751dbe0e/downloads/molorowelejejijem.pdfIn PDF document text
    • https://img1.wsimg.com/blobby/go/7c4463e3-109c-48af-b9be-98e22cdf2116/downloads/dapibitaraluva.pdfIn PDF document text
    • https://img1.wsimg.com/blobby/go/7c4463e3-109c-48af-b9be-98e22cdf2116/downloads/98167591425.pdfIn PDF document text
    • https://img1.wsimg.com/blobby/go/7c4463e3-109c-48af-b9be-98e22cdf2116/downloads/lefobobexik.pdfIn PDF document text
    • https://img1.wsimg.com/blobby/go/671d8571-de15-47bb-8cd8-b624751dbe0e/downloads/bksb_english_diagnostic_assessment_answers_2020.pdfIn PDF document text
    • https://img1.wsimg.com/blobby/go/671d8571-de15-47bb-8cd8-b624751dbe0e/downloads/94465400771.pdfIn PDF document text
    • https://img1.wsimg.com/blobby/go/7c4463e3-109c-48af-b9be-98e22cdf2116/downloads/togexolosufikizi.pdfIn PDF document text
    • https://img1.wsimg.com/blobby/go/7c4463e3-109c-48af-b9be-98e22cdf2116/downloads/35956861370.pdfIn PDF document text
    • https://img1.wsimg.com/blobby/go/671d8571-de15-47bb-8cd8-b624751dbe0e/downloads/bomuxeludatirufivuzalirom.pdfIn PDF document text
    • https://img1.wsimg.com/blobby/go/d37a9b24-bc42-4cb1-ab3b-3d1b21b01aec/downloads/lulowirokorelikuvodemafi.pdfIn PDF document text
    • https://img1.wsimg.com/blobby/go/671d8571-de15-47bb-8cd8-b624751dbe0e/downloads/95864396077.pdfIn PDF document text
    • https://img1.wsimg.com/blobby/go/d37a9b24-bc42-4cb1-ab3b-3d1b21b01aec/downloads/xadenowomulixib.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

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0007c1c0.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7C1C0 11028 bytes
SHA-256: d7f167a660d57d4097af6ee9f14bfe8f628debdf44b240f00a28249027a0bc65
font_01_sfnt_off0007dce0.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7DCE0 16052 bytes
SHA-256: e0906fae27f0771fdc334055950dd260f58fa4a730028a0381e139a28eb1346f

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