Malicious PDF — malware analysis report

Static analysis result for SHA-256 af27a0b69db511c5…

MALICIOUS

PDF

44.3 KB Created: 2020-10-12 18:07:01 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-06-21
MD5: 2d33dfc5ac23e15806c5eebd949c4e1c SHA-1: 4f96f854ef75c89f9b8d15cdcd811c9e996c010c SHA-256: af27a0b69db511c5530c0d787dbe29cda9177d197555891d77d1935eaf08eb22
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://ggtraff.ru/strik?keyword=equations+of+lines+worksheet+geometry In PDF document text
    • https://site-1037075.mozfiles.com/files/1037075/26530238980.pdfIn PDF document text
    • https://site-1040002.mozfiles.com/files/1040002/87426070013.pdfIn PDF document text
    • https://site-1038586.mozfiles.com/files/1038586/voxabijalisurur.pdfIn PDF document text
    • https://site-1037230.mozfiles.com/files/1037230/xibesobisadid.pdfIn PDF document text
    • https://site-1038868.mozfiles.com/files/1038868/goburabejusobokupugumax.pdfIn PDF document text
    • http://suvega.designfea.com/uploads/1/3/1/0/131070792/5398217.pdfIn PDF document text
    • http://files.sthedwighistoryerie.com/uploads/1/3/1/4/131453749/7407368.pdfIn PDF document text
    • https://site-1036721.mozfiles.com/files/1036721/roruvivi.pdfIn PDF document text
    • https://site-1036923.mozfiles.com/files/1036923/38405868418.pdfIn PDF document text
    • https://site-1036692.mozfiles.com/files/1036692/2452156865.pdfIn PDF document text
    • http://texesid.midrenelamy.com/uploads/1/3/1/4/131406970/e1e778675fc3f.pdfIn PDF document text
    • http://zinovu.fit4lifepilateswellness.com/uploads/1/3/1/6/131637140/gumamunavobuzitalije.pdfIn PDF document text
    • http://files.thebirdwatchermovie.com/uploads/1/3/1/3/131398547/56006.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
    • 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_off0000617d.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x617D 5404 bytes
SHA-256: a3549875301ccb6bbe9e59257954ebca1e1c5e98991b95653b4cbaf5c2b233da
font_01_sfnt_off000073cb.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x73CB 10120 bytes
SHA-256: f92c4c0219e18221cdb57cb501d4526d823fd03636cb9a6be07808ab78ea0ac9
font_02_sfnt_off0000965d.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x965D 4324 bytes
SHA-256: a542ec26cea93e049a2e27cd59b1347dd9bbdea13775fd7b822b3c2b3136116f