Malicious PDF — malware analysis report

Static analysis result for SHA-256 ce08f6952dc831a7…

MALICIOUS

PDF

42.2 KB Created: 2020-08-09 05:04:20 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-17
MD5: 2b0b53a3b988430079c1ded1e7e1eebf SHA-1: 25732cea3a79b8f5653e8a33fb2008d5db130c44 SHA-256: ce08f6952dc831a7b97b8d5c615dd94a34b2ba03caa8e70658fcd722aaf0487d
194 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 1.0000

Heuristics 5

  • 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.
  • 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.ru/pify?keyword=32+bit+and+64+bit+operating+system+pdf In PDF document text
    • http://files.tarajartist.com/uploads/1/3/1/4/131453645/5dcae0580f724f.pdfIn PDF document text
    • http://files.salmochildrenscentre.net/uploads/1/3/0/8/130813548/gamelumife.pdfIn PDF document text
    • http://files.stephanieheger.com/uploads/1/3/1/0/131070289/9317508.pdfIn PDF document text
    • http://fuwega.domicilyachthotel.com/uploads/1/3/1/4/131453109/zekomo.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/4204/5090/files/zinazikalegobakuk.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0439/9949/4302/files/55346093906.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/6083/0116/files/6316098349.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/1481/4885/files/advanced_candlesticks.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/0569/6409/files/68539844178.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/1690/4104/files/90748903817.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0440/1784/4382/files/bilingual_education_definition.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0436/0306/7038/files/series_66_study_guide.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/9410/5509/files/letagonimoj.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/9986/5756/files/rajumipatomodozuset.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/1125/1099/files/galevu.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/9829/9813/files/gupewegezeparis.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/2532/5465/files/369896043.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

Related samples 8

Ranked by shared artifacts, heuristics, extracted URLs, CVEs, and signatures.

Full JSON: related samples API

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off000064a5.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x64A5 6012 bytes
SHA-256: 7c7c8588590a8d061821a45e6bcc62317856c8dfefc81b713a01829bdc13cc05
font_01_sfnt_off0000790c.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x790C 10144 bytes
SHA-256: 5e3e263b337c1a32eef1e01fcfdbbfd82e9e8292238381f7284460d09c1772ac

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