Malicious PDF — malware analysis report

Static analysis result for SHA-256 0e24df0f64e0b07e…

MALICIOUS

PDF

45.5 KB Created: 2020-10-31 12:39:22 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-02-23
MD5: 7144f312b98735c2747e75c48b195ebc SHA-1: 5c127f9b2023dc20d62e697ddee6f4803ed97ebb SHA-256: 0e24df0f64e0b07e8a766fe8017605fe049909183b81114888e9812ca0897164
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.me/123?keyword=elastic+heart+sheet+music+free In PDF document text
    • https://sebonegipuwi.weebly.com/uploads/1/3/4/1/134108682/jedonureketolam-sobikesitazezuf-loretebovabof-xokefuno.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://www.daltonmaag.com/In PDF document text
    • https://cdn.shopify.com/s/files/1/0507/9554/4734/files/sasimo.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0502/9314/5755/files/month_to_month_commercial_rental_agreement_california.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/cd97f2f3-6766-442a-96bd-37eecdae7773/zopalefusodowituwebizefap.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/d253873f-01c0-473a-a44a-93363d59caf2/jemenes.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/e6aa7143-28c4-4416-835e-d367911f7151/76437668048.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0483/0701/1739/files/74007760168.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0505/4804/8057/files/reading_and_vocabulary_study_guide_answers.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/ff143e35-9a72-4edb-941c-5fefd271f502/saxininelitawaluzefizunu.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/13401b8e-ed98-413f-a604-4cdae9751b9c/shadowcraft_mage_pathfinder.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0502/8485/5493/files/rafanititaw.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 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000649e.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x649E 4744 bytes
SHA-256: cd3915bdd977a396c6c0b1cf800fc66bac0a5a59654b7fe6804820f316dd589e
font_01_sfnt_off000074b1.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x74B1 11744 bytes
SHA-256: 785ed2c9e858d5310ce174bf93d1394fe04c600b4319c84bf19f1dc4b0038097
font_02_sfnt_off00009aeb.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x9AEB 4324 bytes
SHA-256: 1062cd8ddf90f4344fa193b395386d5669df1a952e5759311ca261a71931f361

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