Malicious PDF — malware analysis report

Static analysis result for SHA-256 4de3eb9703ad479b…

MALICIOUS

PDF

38.1 KB Created: 2020-10-02 19:00:53 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-04-29
MD5: f1b953af2562d9a2e8cfa24b6fbc0f46 SHA-1: 61c5601946459172b0ea7a84c9cae5c1e2dc0b70 SHA-256: 4de3eb9703ad479b4fddfc1349578229d637693aa7d74a90d82ba656fb04bc84
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://ggtraff.ru/strik?keyword=ford+v4+engine+parts In PDF document text
    • https://site-1037191.mozfiles.com/files/1037191/mivekemusokamowisidu.pdfIn PDF document text
    • https://site-1040251.mozfiles.com/files/1040251/93105666663.pdfIn PDF document text
    • https://site-1037275.mozfiles.com/files/1037275/nibukepusimojosidan.pdfIn PDF document text
    • https://site-1036864.mozfiles.com/files/1036864/46389531274.pdfIn PDF document text
    • https://site-1038365.mozfiles.com/files/1038365/fitodujomom.pdfIn PDF document text
    • https://site-1039661.mozfiles.com/files/1039661/togopujovapodozetemon.pdfIn PDF document text
    • https://site-1036981.mozfiles.com/files/1036981/kemagek.pdfIn PDF document text
    • https://site-1038789.mozfiles.com/files/1038789/37099908844.pdfIn PDF document text
    • https://site-1037214.mozfiles.com/files/1037214/nibolumade.pdfIn PDF document text
    • https://site-1037172.mozfiles.com/files/1037172/limafiwej.pdfIn PDF document text
    • https://site-1036814.mozfiles.com/files/1036814/93696783643.pdfIn PDF document text
    • https://site-1036815.mozfiles.com/files/1036815/xanesazofuvikeg.pdfIn PDF document text
    • https://site-1037909.mozfiles.com/files/1037909/gazojapemof.pdfIn PDF document text
    • http://www.ascendercorp.com/In extracted file (font_00_sfnt_off000049e9.bin)
    • http://www.ascendercorp.com/typedesigners.htmlIn extracted file (font_00_sfnt_off000049e9.bin)
    • http://www.daltonmaag.com/In extracted file (font_02_sfnt_off00007db8.bin)
    • https://uploads.strikinglycdn.com/files/d64c3ee3-56ce-488d-a4ec-9dcf4d02d7ed/dezagijiwizurodido.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/385d1a90-de37-4864-8bc3-b98ce19cb29d/94017692788.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/ed22babe-f666-49cd-b99a-bbc4a6cd68bc/14280769829.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/acc12119-273a-49ca-9d88-c31f809cea75/72190470124.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_off000049e9.bin)

Related samples 8

Ranked by shared artifacts, heuristics, extracted URLs, CVEs, and signatures.

Full JSON: related samples API

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off000049e9.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x49E9 4988 bytes
SHA-256: 276eb13e298ed0fdbba397e50aa2432c41a9b4b0c69c40d93b5b88b4b7ea1159
font_01_sfnt_off00005af7.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x5AF7 10484 bytes
SHA-256: c54bfba88bdf1e5a183c78c2c7e4ee9d335f22e5543d9e6e2af5da35dad19e19
font_02_sfnt_off00007db8.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7DB8 4324 bytes
SHA-256: cd94ef65598b1866d0653cdd88243d989fd81359c0e770c2d3a4858f1c2f6d34

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