Malicious PDF — malware analysis report

Static analysis result for SHA-256 1dc64cd2385826e5…

MALICIOUS

PDF

41.4 KB Created: 2020-10-26 02:25:55 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-30
MD5: 34e569a183bbc45e57e1889e93acfbbf SHA-1: 20560a8af14a006e7f087087a72fafde5d6f6239 SHA-256: 1dc64cd2385826e57eae2fdc0d41b352bb61c0f5f633e0be393bb30c0ec77600
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://cctraff.ru/wb?keyword=historia%20de%20la%20velocidad%20de%20la%20luz%20pdf In PDF document text
    • https://kafigibedup.weebly.com/uploads/1/3/4/4/134479504/4262559.pdfIn PDF document text
    • https://vuxozajuje.weebly.com/uploads/1/3/1/3/131379873/rugatu-rugot.pdfIn PDF document text
    • https://wurikosaradusif.weebly.com/uploads/1/3/1/3/131384544/ceaf0127784.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • https://s3.amazonaws.com/dedinavesute/ansi_c_standard_download.pdfIn PDF document text
    • https://s3.amazonaws.com/bezutu/runinodutivira.pdfIn PDF document text
    • https://s3.amazonaws.com/henghuili-files2/learn_stock_market_india.pdfIn PDF document text
    • https://s3.amazonaws.com/wilugugo/cantaloupe_island_trumpet_solo_transcription.pdfIn PDF document text
    • https://s3.amazonaws.com/niporofez/76424603746.pdfIn PDF document text
    • https://s3.amazonaws.com/jamokaroxoj/83308813314.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/c32d1f8a-41b7-4bb2-bead-119c811ca46f/kefukiw.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/d4593b79-ed5d-4a59-b524-d3f55ee85425/vivedelizereparobudasafan.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0498/9331/0631/files/3883418899.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/4685/3016/files/73572371398.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0438/1114/3842/files/47479177717.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0496/5937/9875/files/the_synchronicity_key_espaol.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0496/2667/7399/files/shows_like_avatar_the_last_airbender_on_netflix.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/8257bb4b-2158-4a46-95e4-ff0c2eb02a45/66945250967.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/0afb6b33-1ec4-4e37-939f-a259c5cc7508/maviwusotavikige.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_off00006301.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6301 5220 bytes
SHA-256: 16cee72b2ef25472c4e3d8c8662aff8f5b086bdad4511f9e2c124da84d63cc05
font_01_sfnt_off000074dc.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x74DC 10476 bytes
SHA-256: 8d8d69a82f63809ab8d1dcf13e418e8bc096ce75355fc0596b3d93b91838ac57

Open this report in the interactive analyzer, or submit your own file for analysis.