Malicious PDF — malware analysis report

Static analysis result for SHA-256 72b93bfa499e3221…

MALICIOUS

PDF

44.1 KB Created: 2020-10-02 02:13:37 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-06-28
MD5: f62bdb845cfd1edd9a768888095227e9 SHA-1: de5f66fbacf54caf7c46ca8f10eb1e7bd07850cb SHA-256: 72b93bfa499e3221977a3fab677a0bb516026f4be5ac16338771b3cbf33670ce
124 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 1.0000

Heuristics 4

  • 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 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=yaar+bewde+song+download In PDF document text
    • https://site-1037024.mozfiles.com/files/1037024/930222939.pdfIn PDF document text
    • https://site-1036680.mozfiles.com/files/1036680/94930074432.pdfIn PDF document text
    • https://site-1036852.mozfiles.com/files/1036852/85599989304.pdfIn PDF document text
    • https://site-1036665.mozfiles.com/files/1036665/ridotimulejipik.pdfIn PDF document text
    • https://site-1040251.mozfiles.com/files/1040251/rezezalamon.pdfIn PDF document text
    • https://site-1037059.mozfiles.com/files/1037059/kamulipuxebiboxujozikaref.pdfIn PDF document text
    • https://site-1037101.mozfiles.com/files/1037101/kinirorilez.pdfIn PDF document text
    • https://site-1036655.mozfiles.com/files/1036655/27769943142.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/9b457f7c-f7ae-4b02-82fe-dd991ac1c288/vufoxar.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/baf31d93-5f3e-4c7d-b28c-cc3534532401/ralijet.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/75110744-9aba-4454-a8b9-7774babbc8a1/wavemeluzo.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/cb013c6f-a493-4f12-9cc9-ad66d0756e8f/69067096286.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/f6f328cd-90f6-4837-b89a-778fa1606318/26681290816.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/4cd666d0-fdac-4bfe-93f5-93857750651e/82703424527.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
    • http://dejavu.sourceforge.netIn PDF document text
    • http://dejavu.sourceforge.net/wiki/index.php/LicenseIn PDF document text

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00004cb9.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x4CB9 5188 bytes
SHA-256: ab07cdb9572973480a95dd05af40a84dcd10778236cf4e900c3c210ea168fd0e
font_01_sfnt_off00005e7d.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x5E7D 11000 bytes
SHA-256: 6e8e1e7da67e53373fef2777b53ba3e00a782d49ed0ca88cdaaa918386dff607
font_02_sfnt_off0000840f.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x840F 18776 bytes
SHA-256: 9e8409b995ac2b0bb76eb3eb8dd1c90fa55d1c1c8a40bb5daa08ca4080948d13

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