Malicious PDF — malware analysis report

Static analysis result for SHA-256 2c82c6771d458cd2…

MALICIOUS

PDF

45.0 KB Created: 2020-10-07 08:15:14 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-06-04
MD5: 7e23b03ef7d4ed544d8f875a59fe28bf SHA-1: 795ce1336bf2b75187ec11f829b8bb783fcffc90 SHA-256: 2c82c6771d458cd25ae7424ca0fb24f66f65d650aa06b8b5afca93cec34637b5
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/strik?keyword=coelho+sabido+1+serie++gratis In PDF document text
    • https://site-1039152.mozfiles.com/files/1039152/fabakomosilasetesaxe.pdfIn PDF document text
    • https://site-1037848.mozfiles.com/files/1037848/kavudemolenemetapo.pdfIn PDF document text
    • https://site-1038782.mozfiles.com/files/1038782/wibijogitavazugixonifiwe.pdfIn PDF document text
    • https://site-1036839.mozfiles.com/files/1036839/mosoferagewuzixoze.pdfIn PDF document text
    • https://site-1037009.mozfiles.com/files/1037009/xutir.pdfIn PDF document text
    • https://site-1042780.mozfiles.com/files/1042780/ninedodosirimisotez.pdfIn PDF document text
    • https://site-1036873.mozfiles.com/files/1036873/76642051202.pdfIn PDF document text
    • https://site-1038969.mozfiles.com/files/1038969/2269964393.pdfIn PDF document text
    • https://site-1036938.mozfiles.com/files/1036938/82226156192.pdfIn PDF document text
    • https://site-1036811.mozfiles.com/files/1036811/37971647205.pdfIn PDF document text
    • https://site-1037922.mozfiles.com/files/1037922/lokapudivekirosigasiwavar.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/1/0440/1001/2837/files/dnd_5e_elemental_gem.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/2136/8472/files/benomijikogidev.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/6911/1448/files/67803407673.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/2960/2205/files/el_capitan_camping_reservations.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0498/7781/1358/files/zageseripufuwojiwiv.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 3

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_off000067ea.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x67EA 5184 bytes
SHA-256: 887fe4686bb31b460b3d8ca7eae5c20ddd76dd9f91931551315f6bf79e16ae56
font_01_sfnt_off0000797a.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x797A 14912 bytes
SHA-256: a50388be36a9a921e1604c1eab810f65c839686d50b828623c9a4defa6f25d4a

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