Malicious PDF — malware analysis report

Static analysis result for SHA-256 78259c3b11e0b24e…

MALICIOUS

PDF

47.6 KB Created: 2020-11-07 07:41:17 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-06-16
MD5: 51e3a1f7f0c3012d6d020b9389236c53 SHA-1: cc0aff9332d5af840fa7f6e2ccf6ebda2f81f73c SHA-256: 78259c3b11e0b24e19e2ed256eb34ba1c78599638423a15e360da7df5325339b
184 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.
  • 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://traffine.ru/wb?keyword=bolly2tolly%20tamil%20movies%20youtube In PDF document text
    • https://cdn-cms.f-static.net/uploads/4427781/normal_5fa3330032525.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4373986/normal_5f903cf0dd071.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://www.daltonmaag.com/In PDF document text
    • https://uploads.strikinglycdn.com/files/fdc191ab-f733-40dc-a5f5-50e5aca50a5c/mimoduvuxege.pdfIn PDF document text
    • https://s3.amazonaws.com/metubevozisul/alphabet_letters_printables.pdfIn PDF document text
    • https://nifesewuwa.files.wordpress.com/2020/11/medical_fitness_certificate_for_leave.pdfIn PDF document text
    • https://pulagip.files.wordpress.com/2020/11/xekomowufudozete.pdfIn PDF document text
    • https://suvarofora.files.wordpress.com/2020/11/lodebukiworidu.pdfIn PDF document text
    • https://rirosap.files.wordpress.com/2020/11/begotten_1991_full_movie.pdfIn PDF document text
    • https://dukitavix.files.wordpress.com/2020/11/juneturufejodakoruvagusun.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/fc1c7546-50c1-4941-9b96-b1f34338aea5/gattaca_movie_questions_answers.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/b13455bd-0940-422b-801b-f15d75ad25c5/syd_field_screenplay_the_foundations.pdfIn PDF document text
    • https://pupirod.files.wordpress.com/2020/11/nozemapopumetuve.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/28ddec3d-4347-4475-bfe7-d4a37ef9a484/rujojujoza.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 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00006f4e.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6F4E 4996 bytes
SHA-256: 098c84b4029198d1c9a18ce2155fbbc935d1381faaf40d6c7741a3a1e9c7fd41
font_01_sfnt_off00008060.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x8060 10320 bytes
SHA-256: 2572a199199dcf4f3a8668dd13ccd9cb8656b9bf74736f060196bbcecd15f2d0
font_02_sfnt_off0000a368.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xA368 4324 bytes
SHA-256: 1158d95dac44631f497756703988ba3645251422e7ff0015d3fca430225e7c3e

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