Malicious PDF — malware analysis report

Static analysis result for SHA-256 4df8588eb510346a…

MALICIOUS

PDF

72.3 KB Created: 2021-03-04 11:39:22 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-04
MD5: 7b65b051b9d500f1b5cbaaa32cef0e43 SHA-1: 9055571d65f73a765a84aedc6ce601507a251d89 SHA-256: 4df8588eb510346aac6c34840a2e44b31a34c112ed63b7c99be5de63bc935e8a
126 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9997

Heuristics 5

  • ClamAV: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0
  • 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.
  • External URI info PDF_URI
    PDF contains an external URL action
  • 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://jumiwimov.ru/wix?keyword=heroes+rising+full+movie+free PDF link annotation
    • https://cdn-cms.f-static.net/uploads/4383149/normal_60403144e7576.pdfIn PDF document text
    • https://cdn.sqhk.co/faserekino/d5HE2br/movie_edit_pro_reviews.pdfIn PDF document text
    • https://cdn.sqhk.co/ragojagef/jdULkyG/wiruxapomujupupuwawukud.pdfIn PDF document text
    • https://febixitojujemo.weebly.com/uploads/1/3/4/4/134402622/bikojofogagofo_tasos.pdfIn PDF document text
    • http://jovopomutulilo.medianewsonline.com/nigixexazojutuwajelu.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4495392/normal_600a675a7e209.pdfIn PDF document text
    • http://koxelovanalimu.getenjoyment.net/hp_laserjet_professional_m1212nf_mfp_fax_setup.pdfIn PDF document text
    • http://reactivascotia2020.com/brick_and_mortar_vs_onlinevogpg.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4466376/normal_5ffccb2258074.pdfIn PDF document text
    • http://bebetadiruj.mywebcommunity.org/what_is_pilot_arc_on_a_plasma_cutter.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4382618/normal_601a059e19ed4.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://lizolubemerawi.epizy.com/bilal_saeed_bewafa_song_pagalworld.pdfIn PDF document text
    • http://saluwagasa.onlinewebshop.net/best_ap_language_and_composition_review_book.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_off0000dee4.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xDEE4 4896 bytes
SHA-256: 5c14005916a8b8ee51c22cd387af49cd81cc207a25563a511cf2942037f04760
font_01_sfnt_off0000ef82.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xEF82 10848 bytes
SHA-256: cdc50ea127b2e7e6b9945b16a1be75729fdd7dc364adc3af8a0e945697950656