Malicious PDF — malware analysis report

Static analysis result for SHA-256 843268678f44d451…

MALICIOUS

PDF

71.5 KB Created: 2021-02-21 19:52:20 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-04-25
MD5: c730447519776eef9044cf8d346b924c SHA-1: b45a2eba5a6a9bf5d1cc18023045acd2ebb2e339 SHA-256: 843268678f44d451c674c12f4fa557ba27a5bb9da4fa181f97b0c66039c77049
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://jottigo.ru/wb?keyword=whirlpool%20fridge%20parts%20melbourne PDF link annotation
    • http://vomojagibolib.iblogger.org/visafowusudelopizerem.pdfIn PDF document text
    • https://cdn.sqhk.co/dagedazi/xXZjfjb/fateguxomoz.pdfIn PDF document text
    • https://cdn.sqhk.co/malevevipali/xPjhj1W/16246870051.pdfIn PDF document text
    • https://cdn.sqhk.co/xunijejozi/dTVNkT9/15177003097.pdfIn PDF document text
    • http://zakovekapi.22web.org/30004487053.pdfIn PDF document text
    • https://cdn.sqhk.co/ditetona/jfjfihl/gartner_hype_cycle_2018_iot.pdfIn PDF document text
    • http://dorightschool.com/download_majesty_northern_expansion_full_apk5xryo.pdfIn PDF document text
    • https://cdn.sqhk.co/loxexafetivu/axjaidC/kimuze.pdfIn PDF document text
    • https://cdn.sqhk.co/virurewev/hihgidp/80s_synth_music_free_download.pdfIn PDF document text
    • https://cdn.sqhk.co/mogizilo/gejdRxH/56128660329.pdfIn PDF document text
    • https://cdn.sqhk.co/ritasuxa/jjidSjj/dice_drinking_games.pdfIn PDF document text
    • https://cdn.sqhk.co/wirubetena/fLjGE54/vitamix_venturist_1200_sale.pdfIn PDF document text
    • https://cdn.sqhk.co/rojarimeg/dhjSxHd/graham_hill_racing_team.pdfIn PDF document text
    • https://cdn.sqhk.co/tazarufavixa/duigics/police_officer_killed_in_st_louis_yesterday.pdfIn PDF document text
    • https://cdn.sqhk.co/muligumixe/7EJCpIk/24124052754.pdfIn PDF document text
    • http://jipuvojenibomig.22web.org/multiplication_of_binary_numbers.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://pupudewasoxo.epizy.com/33372211944.pdfIn PDF document text
    • http://nosofakonitul.epizy.com/11037996748.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_off0000d874.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xD874 5608 bytes
SHA-256: e391bc3664e07e4e39139e4feb66c4495051f226b36bea69e5ca32c471047805
font_01_sfnt_off0000eb65.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xEB65 11140 bytes
SHA-256: 74ff754cafd4722c004e5bdbd3fc8f0c21c7a5ba9db2993c75112e46a2935205