Malicious PDF — malware analysis report

Static analysis result for SHA-256 62410ab57a70745e…

MALICIOUS

PDF

61.6 KB Created: 2020-10-01 05:43:08 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-29
MD5: b3364c85249e51ec1f02986e8f7ff5a8 SHA-1: 78f1bb98b09e78cc2be04dd954798879ebd35403 SHA-256: 62410ab57a70745e358d8a60616820dde36e04c09b160c1f7efe9bf6b672b124
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/strik?keyword=alcor%25C3%25A3o+em+portugues+pdf In PDF document text
    • https://site-1037282.mozfiles.com/files/1037282/wuromotumanizufekij.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • https://uploads.strikinglycdn.com/files/cbc87039-a083-4c74-ae6c-2a53b3e084b2/9003456949.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/3b768f61-1f4b-4767-b4bd-2698d9b70071/xeputiduxivajuwugogurube.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/3605546f-8b97-45fd-bcb7-e5a4df1b81dc/ninaduwavipedekekoruburez.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0436/1512/5662/files/xuxokubakabazagapipajivos.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/7160/9761/files/gagotokonawaxutejewoke.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/b7092ea0-31ee-4151-9220-78b9a08b7d4e/1041612024.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/e9d326c3-482a-41c3-b4f4-4cd5e9a0c6de/36833970448.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/b217e6d9-6db4-493f-b12a-0f55aaa338c7/tibozetujenok.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/15438f1f-5bc4-4887-b387-51f6e3569a47/kikujezupazum.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 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000adb9.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xADB9 5572 bytes
SHA-256: b7303ffd52866c184557e35cdbe85cd981f45c001efcdc36ad89de0c3fa586e6
font_01_sfnt_off0000c08d.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xC08D 13288 bytes
SHA-256: c6a28add47e64d271bd7e7e1a1a0d8b2bf17f7cfac267aa7be3663fee94923dc