Malicious PDF — malware analysis report

Static analysis result for SHA-256 aeebed051dea61fd…

MALICIOUS

PDF

40.0 KB Created: 2020-09-30 06:34:03 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-17
MD5: 814350aaf28f64a406a827fe0473d47d SHA-1: b70580d1400650bca47050d1ef3575771f92be07 SHA-256: aeebed051dea61fd28b9b84b5b7098cb9b7c0b76881a8f8bebcad6f604d9a9b1
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://cctraff.ru/strik?keyword=celoma+embrionario+pdf In PDF document text
    • http://sadikumej.whitemoosephoto.com/uploads/1/3/0/8/130874455/bomenu.pdfIn PDF document text
    • http://files.stthomasaquinascharnwood.com/uploads/1/3/0/7/130776676/davuxav-lusotagegojumak.pdfIn PDF document text
    • http://wewaluli.urbanaohio.com/uploads/1/3/1/3/131380550/1603e.pdfIn PDF document text
    • https://site-1037212.mozfiles.com/files/1037212/bivunigisota.pdfIn PDF document text
    • https://site-1037009.mozfiles.com/files/1037009/wirejatiziwumokudaz.pdfIn PDF document text
    • https://site-1036996.mozfiles.com/files/1036996/1046065842.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/1/0433/1631/4277/files/sipufa.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/1818/1016/files/9676572492.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/1056/4002/files/89397354998.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/5296/5789/files/lunarepijaxibavujobovaw.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/54313135065.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0484/3411/8808/files/mogas.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_off000054ca.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x54CA 4880 bytes
SHA-256: 1ab9e2a7780fd56ee927d996d60eb5a64ce32ecd43c139837cc14a4308d2ba6a
font_01_sfnt_off00006530.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6530 9772 bytes
SHA-256: 34fcec57884348df58025f526867613a3b18966059b46ef362d754e83fef42c4
font_02_sfnt_off000085be.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x85BE 4324 bytes
SHA-256: ff5f0ef16caf3e97cd1984b3a03ea88e11eab8cf63d2ee006085a4b9995833f3