Malicious PDF — malware analysis report

Static analysis result for SHA-256 0d3e4b5bc03883c4…

MALICIOUS

PDF

57.5 KB Created: 2020-10-25 23:03:01 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-06-14
MD5: 0b95ec76fe9587e35e002833fd4fbf18 SHA-1: 556b47303cd145a3ee3643557437ce3938d7025c SHA-256: 0d3e4b5bc03883c4c6f229f072625105b9005bcb97a8177a244c67f34711c0ae
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://gettraff.ru/wb?keyword=cartularios%20de%20valpuesta%20pdf In PDF document text
    • https://jakedekokobara.weebly.com/uploads/1/3/1/3/131381480/xududev-ledavodu-jatulivarolaxe-bixebenal.pdfIn PDF document text
    • https://vimiwegom.weebly.com/uploads/1/3/0/7/130775837/nuxegifanirin.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4377912/normal_5f8d3a24f0f1c.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4369516/normal_5f88cc5ab3d80.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4370266/normal_5f8aeadbea3ff.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4407062/normal_5f9574428723e.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4367301/normal_5f89037288c8a.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4393755/normal_5f8f8a1a890a9.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4366055/normal_5f88f0db9f359.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4378167/normal_5f8ae985c8166.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4369903/normal_5f8b71ed20078.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/1/0480/4929/1423/files/nepizitatufu.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0495/9859/5221/files/anita_blake_tome_27.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0481/1689/1797/files/vabofoju.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0491/8974/8902/files/29135774450.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0497/5978/1023/files/bsnl_prepaid_recharge_plans_tamilnadu.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0438/2310/4160/files/xuguka.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0492/2372/9318/files/post_office_charles_bukowski.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0470/0022/3896/files/64542181104.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_off00008a51.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x8A51 4896 bytes
SHA-256: 1145e2c489d2812b2039f6b89805248aef0d1d970cdddcfb28d73219a97b4123
font_01_sfnt_off00009b14.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x9B14 14120 bytes
SHA-256: 3cc238c5bbe3337e6664e5cd762d0ec595bf93523b90788d264a1cf917e9967a
font_02_sfnt_off0000c938.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xC938 4324 bytes
SHA-256: ff5f0ef16caf3e97cd1984b3a03ea88e11eab8cf63d2ee006085a4b9995833f3