Malicious PDF — malware analysis report

Static analysis result for SHA-256 6589ce900655c004…

MALICIOUS

PDF

70.5 KB Created: 2021-02-04 23:01:13 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-04-10
MD5: 853f3463538e56bc62343cc18a420194 SHA-1: ef8c244ae5ad011ef051fd2f3bda0bd2bea4537f SHA-256: 6589ce900655c004c82ee90152b8181b6e29cb990555d48d1f68338cbb832ea8
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://baarspo.ru/123?utm_term=cacophony+definition+in+a+sentence PDF link annotation
    • http://50off.pro/baixar_livro_azeitonaxmj7v.pdfIn PDF document text
    • http://taptopbot.com/fallout_3_survival_guide_moirastefp.pdfIn PDF document text
    • http://samo-katim.ru/Hankook_tires_philippines_price_listuslyp.pdfIn PDF document text
    • https://cdn.sqhk.co/bolukawet/Gjbgdjb/87324351101.pdfIn PDF document text
    • http://complect-tech.ru/tvarking_nam_stebuklas3xry7.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/paxivogedewilu/85196945712.pdfIn PDF document text
    • https://s3.amazonaws.com/wujapu/chitralahari_lyrics_video_songs.pdfIn PDF document text
    • https://s3.amazonaws.com/sesijesule/61711430664.pdfIn PDF document text
    • https://s3.amazonaws.com/lijopavexanuse/obito_s_death_theme_piano_sheet_music.pdfIn PDF document text
    • https://s3.amazonaws.com/wegugus/getting_over_it_game_mod_apk.pdfIn PDF document text
    • http://fegelefuxenitud.rf.gd/air_mattresses_reviews_consumer_reports.pdfIn PDF document text
    • https://s3.amazonaws.com/jarawaxanivu/algorithm._sty_package_latex.pdfIn PDF document text
    • https://s3.amazonaws.com/luxaduzimase/bull_bull_kannada_film_songs_free.pdfIn PDF document text
    • https://s3.amazonaws.com/xalexojaxipud/zamarumusatiwiterup.pdfIn PDF document text
    • https://s3.amazonaws.com/nowokil/nice_guidelines_acutely_ill_patients_in_hospital.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_off0000d656.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xD656 5120 bytes
SHA-256: 7fbd37519db839f572df889c461933cf1b3de1a85988b3b253ce9670e74444bc
font_01_sfnt_off0000e7cc.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE7CC 10892 bytes
SHA-256: a8abb7356ff152e8db3369ffcd29bc0b1541bd6897e6e54a968d83969991c0ba