Malicious PDF — malware analysis report

Static analysis result for SHA-256 45075fef916fcda1…

MALICIOUS

PDF

38.4 KB Created: 2020-10-02 08:03:35 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-04-25
MD5: c6bcc370427f51ab6afc18f0d3f76c4f SHA-1: 51138079438dcfaf24e865ba1cea881848e8190b SHA-256: 45075fef916fcda1a16ad4a97befefddbefcd58eb331dc2d8565a9b8af7dac2a
149 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.
  • PDF advertises pirated movie streaming/download medium PDF_PIRACY_STREAMING_LURE
    PDF rendered text advertises free full-movie streaming or download using piracy-brand names or a 'full movie + download/free/watch' intent phrase — recovered after folding the styled Unicode confusables the campaign uses to hide those keywords from plain-text detection. These are disposable SEO-spam carriers that route users to malvertising, fake-player, and scam pages; the PDF itself is inert.
  • 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://cctraff.ru/strik?keyword=tamil+dubbed+3d+animation+movies+fre In PDF document text
    • https://site-1036862.mozfiles.com/files/1036862/durolokulanata.pdfIn PDF document text
    • https://site-1037152.mozfiles.com/files/1037152/92096533123.pdfIn PDF document text
    • https://site-1036951.mozfiles.com/files/1036951/gobipisomulamevewe.pdfIn PDF document text
    • https://site-1037156.mozfiles.com/files/1037156/xofekitodumisa.pdfIn PDF document text
    • https://site-1036869.mozfiles.com/files/1036869/mawarowebufogifaperodu.pdfIn PDF document text
    • https://site-1039903.mozfiles.com/files/1039903/gobepizi.pdfIn PDF document text
    • https://site-1038780.mozfiles.com/files/1038780/86806911682.pdfIn PDF document text
    • https://site-1039413.mozfiles.com/files/1039413/vonojonosof.pdfIn PDF document text
    • https://site-1037075.mozfiles.com/files/1037075/85877553751.pdfIn PDF document text
    • http://www.ascendercorp.com/In extracted file (font_00_sfnt_off00005913.bin)
    • http://www.ascendercorp.com/typedesigners.htmlIn extracted file (font_00_sfnt_off00005913.bin)
    • https://uploads.strikinglycdn.com/files/9479c041-d364-4802-b011-3629805e1092/25303963657.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/5317de72-6008-4f29-a091-44ec61b77279/53272263930.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/c9377389-a538-4fd5-997e-6790c1519594/23895887315.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/b5a37d36-e459-4d6d-a1a1-2199dbff5867/58830398530.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/a1fb45be-5017-4bcd-bc54-9a962c43fd8c/87981123641.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/6dd086d5-afe6-4ebb-a2f6-40486fb2bef0/32299043185.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 extracted file (font_00_sfnt_off00005913.bin)

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00005913.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x5913 5368 bytes
SHA-256: b6a0b8cf3b27c1f35ff5d7f3cd5750e22e04e55eb68371545caac2c24bd67548
font_01_sfnt_off00006b3e.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6B3E 9828 bytes
SHA-256: 42231b133541db50e03b303cddac28e3a7edb042687faa6be97705ccc9356f0a