Malicious PDF — malware analysis report

Static analysis result for SHA-256 f0dff8e0c75f439e…

MALICIOUS

PDF

41.6 KB Created: 2020-11-07 11:30:12 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-06-04
MD5: 465a58ad44dc808ca64c12b2bf6db7b4 SHA-1: 97fc2028772be0f35ffc73c7e13f66316116f25e SHA-256: f0dff8e0c75f439e5166e49cbf0c3e52db376fe74330353e465305eac09d3908
76 Risk Score
Tags
free-cdn-ebook-manual-lure

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1059.007 JavaScript

The PDF file contains a lure related to 'Frost dk icy veins stat' and a high-confidence heuristic indicates it's a redirector for phishing. The embedded URL 'https://trafffi.ru/123?keyword=frost+dk+icy+veins+stat' is the primary indicator of malicious activity. While no scripts were explicitly extracted, the PDF structure and heuristics suggest it's designed to lead the user to a malicious site.

Machine Learning

  • Nyx PDF Classifier malicious score 1.0000

Heuristics 4

  • 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://trafffi.ru/123?keyword=frost+dk+icy+veins+stat PDF link annotation
    • https://vodipewelo.weebly.com/uploads/1/3/1/6/131637384/5256039.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • https://uploads.strikinglycdn.com/files/00690e66-5066-494a-99ac-e20fde7edbd4/zuwoxagolelu.pdfIn PDF document text
    • https://xilatubak.files.wordpress.com/2020/11/51476906000.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/a9ec5321-8a63-4557-92ea-12564919f4cc/muluzudowajezi.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/5e2cfe0b-34ba-47e5-8a2d-d4eea9056be5/biwakojalugob.pdfIn PDF document text
    • https://saridejawe.files.wordpress.com/2020/11/legabujokapabosonam.pdfIn PDF document text
    • https://s3.amazonaws.com/rorives/gibilikeriwexovanoxefob.pdfIn PDF document text
    • https://jopafez.files.wordpress.com/2020/11/zezigidoxupavafijilafaroj.pdfIn PDF document text
    • https://xasuxedizos.files.wordpress.com/2020/11/gemunukivejojurisaleva.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/5a848718-5ab0-4fc9-9420-b63310098552/no_mans_sky_re_latticed_arc_crystal.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/a902c8b9-dbc4-4ccf-b6c3-c39469bc154f/gewuzujoxopeg.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/f09f98c3-76c3-4e39-91ea-7af8b224393a/28580636563.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_off00006574.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6574 5084 bytes
SHA-256: b2b8a20dd44c877d066f4f7dbc53d15a1561c7159a2b21037f745143cb84f075
font_01_sfnt_off000076e3.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x76E3 10380 bytes
SHA-256: 6e3c116e48ee6f94a0da35708e18259c106f8227c37d3361068d5b8cd698d41f

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