Malicious PDF — malware analysis report

Static analysis result for SHA-256 875258ed0e3023e8…

MALICIOUS

PDF

44.5 KB Created: 2020-10-08 04:14:43 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-04
MD5: 046de4bd97158ce50b5982c0d5640237 SHA-1: 52e5ea030e41d5166c55688cb8cee98465d02cdd SHA-256: 875258ed0e3023e8c65b1e53aa44a9021e284c2a8d4a2fe0c6115517895a1672
244 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 1.0000

Heuristics 6

  • 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.
  • Viral-video clickbait PDF links to suspicious host critical SE_VIRAL_VIDEO_CLICKBAIT_LINK
    Document uses viral/leaked-video lure text and links to a suspicious disposable-looking web host. This is a clickbait/traffic-scam carrier shape rather than a benign PDF link.
  • 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=horizon+zero+dawn+frozen+wilds+guide+pdf In PDF document text
    • http://pukasidom.top-tungsten.com/uploads/1/3/1/4/131453284/755944.pdfIn PDF document text
    • http://verowe.mattworrell.net/uploads/1/3/0/7/130775455/lemitor.pdfIn PDF document text
    • http://files.cesca-chairs.com/uploads/1/3/0/9/130969454/guxepi.pdfIn PDF document text
    • http://files.thehumblehumanist.com/uploads/1/3/1/4/131437474/5412546.pdfIn PDF document text
    • https://site-1036962.mozfiles.com/files/1036962/favebijafipimavozi.pdfIn PDF document text
    • https://site-1045398.mozfiles.com/files/1045398/nezelepeworuba.pdfIn PDF document text
    • https://site-1039830.mozfiles.com/files/1039830/lizimafub.pdfIn PDF document text
    • http://pukasidom.topIn PDF document text
    • http://www.ascendercorp.com/In extracted file (font_00_sfnt_off000062fb.bin)
    • http://www.ascendercorp.com/typedesigners.htmlIn extracted file (font_00_sfnt_off000062fb.bin)
    • http://www.daltonmaag.com/In extracted file (font_02_sfnt_off000096e9.bin)
    • https://uploads.strikinglycdn.com/files/60c1497b-75c1-4121-87de-aa0644937c6b/jabonofagolebigumuvune.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/b6ce4178-7671-4ab8-9d37-835b906852d7/41366554330.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/4c45a6bc-f414-4ed0-8955-c1cf996f707f/nalopumemap.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0482/3256/2842/files/mahoning_county_jail.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/5085/9670/files/world_geography_study_guide_answers.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/0073/3596/files/crest_whitestrips_supreme_professional_whitening_84_strips.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_off000062fb.bin)

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off000062fb.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x62FB 5116 bytes
SHA-256: 00d5621bac880c8965d0d88cd3e70020f5010a6f51a127bf1b8b40c8a639db2f
font_01_sfnt_off0000747f.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x747F 10052 bytes
SHA-256: ed540f88f0ad710a6b626a94e5fab29c2d644a4b88eb9d5cee469e76dab40787
font_02_sfnt_off000096e9.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x96E9 4324 bytes
SHA-256: d1f4a20f0e35a0564be54678b929bb8c711862c507f070c2b9a6abea8daf4378