Malicious PDF — malware analysis report

Static analysis result for SHA-256 20e6aca7803a4425…

MALICIOUS

PDF

69.3 KB Created: 2021-02-08 08:40:28 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-04-10
MD5: ea0f4e70bb5f6d759c67ff5dc9982459 SHA-1: 23f75706f8ea769f572d8b91234c8f1e1d145995 SHA-256: 20e6aca7803a44250740c5d493b837ed831f530c47a85b30ccd78ada86cf6a1f
136 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9998

Heuristics 5

  • ClamAV: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0
  • Image lure linking to an SEO redirector (free-download phishing) high PDF_SEO_UTM_REDIRECTOR_LINK
    PDF embeds an image with little or no body text and a clickable link to a multi-word utm_term / FeedBurner-proxied SEO redirector — the 'free ebook / solution-manual / document download' phishing family that ranks for natural-language search queries and routes the user into a payload/redirect chain. The PDF carries no exploit; the risk is the linked destination. Flagged structurally (image lure + SEO redirector) so it does not depend on a ClamAV/ML signature, and regardless of how many filler text pages the lure carries.
  • 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://bologen.ru/wb?keyword=antoni%20gaudi%20worksheet PDF link annotation
    • http://reduslimitalia.website/controle_physique_chimie_5eme_masse_et_volumeqlt7w.pdfIn PDF document text
    • https://cdn.sqhk.co/zirizowesaw/RdigcmZ/39247744234.pdfIn PDF document text
    • http://6gusevshop.website/word_scramble_finder_spanishdqa2b.pdfIn PDF document text
    • http://vibubag.22web.org/lemoteteterewumap.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/nelizenejakarug/powonivopuvu.pdfIn PDF document text
    • http://nigiragesowujow.epizy.com/xewojolanuxuwiw.pdfIn PDF document text
    • https://s3.amazonaws.com/fatisake/witopemojeruriruxitovizoz.pdfIn PDF document text
    • https://s3.amazonaws.com/bagisi/xafoguwefid.pdfIn PDF document text
    • http://fefekug.rf.gd/cartes_du_ciel_windows_7.pdfIn PDF document text
    • https://s3.amazonaws.com/fejififimaketo/13997056224.pdfIn PDF document text
    • https://s3.amazonaws.com/lunojol/resttemplate_application_x-_www-_form-_urlencoded_post.pdfIn PDF document text
    • https://s3.amazonaws.com/teximikamukubo/treatise_on_invertebrate_paleontology_bivalvia.pdfIn PDF document text
    • https://s3.amazonaws.com/xuvamuba/game_show_background_music-_free.pdfIn PDF document text
    • http://zuniguvip.epizy.com/dell_p2418d_user_guide.pdfIn PDF document text
    • https://s3.amazonaws.com/sajezife/draeger_breathing_apparatus_manual.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_off0000d238.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xD238 5200 bytes
SHA-256: ac2e0cd1d7c1cb5eeef82d1e0f59b3bb32686677657f59d8325eda2b5e3839f2
font_01_sfnt_off0000e3f9.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE3F9 10972 bytes
SHA-256: dc3367acdefac4dad99f3cde24975073d9eef42253a19a5e0a99917b293ffd06