Malicious PDF — malware analysis report

Static analysis result for SHA-256 72b277d0aef464cc…

MALICIOUS

PDF

35.8 KB Created: 2020-10-26 00:39:24 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-06-28
MD5: 694c2a25db1c50c9fbb917643ec56b1e SHA-1: e5707a55b8a17087283b92ff0a74d03cac02796f SHA-256: 72b277d0aef464cc59a5fd7ef0cb609ee67439c0a31774914251660ea97f6d0e
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://ttraff.club/123?keyword=homophone+practice+worksheet+3rd+grade In PDF document text
    • https://jalewigevat.weebly.com/uploads/1/3/2/6/132681207/5607483.pdfIn PDF document text
    • https://vaxajiwozoli.weebly.com/uploads/1/3/1/6/131637631/tiguremop-vefinedojuzogav-bibep.pdfIn PDF document text
    • https://nokifijipuf.weebly.com/uploads/1/3/4/3/134305843/8944807.pdfIn PDF document text
    • https://dufevirefat.weebly.com/uploads/1/3/1/4/131438490/dipuxu_naxuburo_zakag.pdfIn PDF document text
    • https://sopopubepomexak.weebly.com/uploads/1/3/4/2/134265445/4142547.pdfIn PDF document text
    • https://jukovuwivoxufab.weebly.com/uploads/1/3/3/9/133997180/wupopezad.pdfIn PDF document text
    • https://bixivotanaxifu.weebly.com/uploads/1/3/4/4/134449973/wezelaxu-xazexidop-ramoru-bunalavodod.pdfIn PDF document text
    • https://naxedomabaxa.weebly.com/uploads/1/3/1/6/131606472/1373242.pdfIn PDF document text
    • https://vururera.weebly.com/uploads/1/3/4/4/134493513/suvelewano.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • https://s3.amazonaws.com/zifozujiwi/definicion_de_insuficiencia_cardiaca_congestiva.pdfIn PDF document text
    • https://s3.amazonaws.com/jumedemimo/lorenesojubuwupevasakaki.pdfIn PDF document text
    • https://s3.amazonaws.com/xebuvuwov/fapepelipozoxamoger.pdfIn PDF document text
    • https://s3.amazonaws.com/vavabi/24166100950.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/fce14423-0276-4d63-aa0d-14c5dec9a596/27461886240.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0504/4627/0657/files/ficha_de_anamnese_psicologia.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/6767/0689/files/regarding_henry_script.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_off00004aa1.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x4AA1 5736 bytes
SHA-256: c728d9c0714ad75bb0113bb5e1ad0f41d3e80ccd5e9093ede196e62d6428c7e6
font_01_sfnt_off00005e02.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x5E02 10672 bytes
SHA-256: c84970863359504208410f87f3668eb2b10bdd9ab460bebae6d94c39f61c0b4c

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