Malicious PDF — malware analysis report

Static analysis result for SHA-256 5d8362b0ece1aff7…

MALICIOUS

PDF

49.9 KB Created: 2020-10-13 06:31:23 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-06-18
MD5: 6723ebce6a211daf8380ae1234eecaf9 SHA-1: eac1ffad277de37502f2252fe283f8071d818c45 SHA-256: 5d8362b0ece1aff79e7e07540f6d7d52effa0ea451e4f66b09f9248f472b1fc2
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=grade+up+may+2020+current+affairs+pdf In PDF document text
    • http://xepar.pamelapalmadesigns.com/uploads/1/3/1/4/131482952/c14b60b2039.pdfIn PDF document text
    • http://kabima.westfargoanimalhospital.com/uploads/1/3/2/7/132740606/7f9364.pdfIn PDF document text
    • http://files.hrcm.org/uploads/1/3/1/4/131437980/rexosofez-seduzuganake-kubetekofumol.pdfIn PDF document text
    • http://konox.truckeehomeshow.com/uploads/1/3/1/3/131398589/447255221.pdfIn PDF document text
    • http://fulofo.shootpoetry.com/uploads/1/3/0/7/130776054/jezutoni_wuxigozikena_zixan.pdfIn PDF document text
    • http://files.thescruffynerdherders.com/uploads/1/3/1/0/131070625/fomuvanaremozanagav.pdfIn PDF document text
    • http://takamig.losalamosquaranteencenter.com/uploads/1/3/1/1/131164250/sewonasizowes.pdfIn PDF document text
    • http://soroje.casperpecancompany.com/uploads/1/3/1/3/131398101/pafetokofowinab.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/73e1f1f3-3aa3-4def-aae8-3e6b29cc77e1/ruseperozalogevexerafeb.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/3ee69fca-e944-4bea-9508-1ab2a38d4be6/jepokisilazip.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/fd44a289-3baa-44e7-8eb5-f49977589147/18974365363.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/bd7c29f5-aaad-4a84-8d04-e62d54b6810d/ritulowasifaluxirasovap.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/9c214fde-887f-4941-a67c-5f4a4c8aea9a/56711147096.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/439ea21c-306c-4582-a30b-06a840a6b188/16117831760.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/ef5dec0a-8f64-4cd2-adc2-9007c529bc56/fuwevijupugofegusug.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_off00008219.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x8219 5676 bytes
SHA-256: 2378041cf512aa3ecd4f8aa6d1ee311b95cd8ce0a193384b9a60debcf49d699b
font_01_sfnt_off00009568.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x9568 11284 bytes
SHA-256: 0f196697d6f53604d528dafa65d85e521809a0dad96af6b06d18b9a5a21f523a

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