Malicious PDF — malware analysis report

Static analysis result for SHA-256 2c83f00dd746ae16…

MALICIOUS

PDF

39.2 KB Created: 2020-10-12 05:01:50 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-06-04
MD5: 4981fb074538fd58b37df8c06254c7f9 SHA-1: da906b65a7c650e5b4e15109d9e877e9fa382523 SHA-256: 2c83f00dd746ae16eaee86f1858aef5f3725cb2f24d72ff21cd6b0ec9dd76bf8
124 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 1.0000

Heuristics 4

  • 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 is a non-clustered link farm on disposable hosting medium PDF_SEO_DISPOSABLE_LINK_FARM
    Small PDF contains many clickable external PDF links spread thin across many distinct hosts (no single dominant host), corroborated by a utm_term SEO-redirector link and/or links parked on free/disposable content hosts. This is the 'free document/template' SEO phishing PDF family, which ranks for search queries and routes users into payload/redirect chains, rather than a normal document citation pattern. The PDF itself carries no exploit — the risk is the linked destinations.
  • 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=empire+byzantin+et+carolingien+evaluation+5eme In PDF document text
    • https://site-1038768.mozfiles.com/files/1038768/19115096226.pdfIn PDF document text
    • https://site-1036785.mozfiles.com/files/1036785/17786587655.pdfIn PDF document text
    • https://site-1043537.mozfiles.com/files/1043537/pifolovusimem.pdfIn PDF document text
    • https://site-1042888.mozfiles.com/files/1042888/jofukidum.pdfIn PDF document text
    • https://site-1043805.mozfiles.com/files/1043805/20999400726.pdfIn PDF document text
    • https://site-1037261.mozfiles.com/files/1037261/jufexoguvegusej.pdfIn PDF document text
    • https://site-1048567.mozfiles.com/files/1048567/fiwegigojinaxav.pdfIn PDF document text
    • https://site-1038520.mozfiles.com/files/1038520/bevivajixizowaduzupod.pdfIn PDF document text
    • https://site-1038995.mozfiles.com/files/1038995/ponopomavazege.pdfIn PDF document text
    • https://site-1039508.mozfiles.com/files/1039508/6065462251.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/0afe2133-f1f9-4bd3-b449-632f7c8552e4/jojobupararedan.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/a17d4710-708e-40fe-a443-7cb02d6def1a/juzudoropodozusoref.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/f5265e14-f440-4f95-bf91-20de09da13de/nanugogarivosedeko.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/5b7e8d57-97e6-4710-b732-140a86eaf4d2/rerekavidukese.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_off000051bb.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x51BB 5508 bytes
SHA-256: bd56e1a3b910b1c332bd74c7b89b7aaec4f55af6a536bfa6c7bde497ac311f61
font_01_sfnt_off00006470.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6470 14068 bytes
SHA-256: 6639251c1f4c2f95b62f29d0c3786862f5d96ac3d243986b9ba6759435277dac