Malicious PDF — malware analysis report

Static analysis result for SHA-256 723213886b3c8021…

MALICIOUS

PDF

71.2 KB Created: 2021-02-26 09:06:58 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-04-10
MD5: a4811ae387c02bedce1dede9ec96f100 SHA-1: 0f9f444c2587cd550d7aed6550b0e1eb61629108 SHA-256: 723213886b3c8021306934cb7ae0c7d830896d16d34ed52983939d786344357a
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/award?keyword=how+fast+is+a+2020+kawasaki+mule PDF link annotation
    • https://cdn.sqhk.co/puvubuzu/x7hdgen/siwozupuzaninijivukokafi.pdfIn PDF document text
    • https://cdn.sqhk.co/fusajovogi/B8ghOje/93419477958.pdfIn PDF document text
    • https://cdn.sqhk.co/wejewenu/gjbnq1y/redbubble_the_forest_gameplay.pdfIn PDF document text
    • https://cdn.sqhk.co/kopizikob/jddaVja/pagakukuxujekemik.pdfIn PDF document text
    • http://zobotalemogi.sportsontheweb.net/what_is_a_social_thinker.pdfIn PDF document text
    • https://cdn.sqhk.co/wofetewa/chbjbif/guess_the_emoji_movie_level_26.pdfIn PDF document text
    • https://cdn.sqhk.co/putuziboki/pCigmUP/doctor_tamil_lyrics_video_download.pdfIn PDF document text
    • http://xorabawik.medianewsonline.com/how_much_does_a_semi_mechanic_make.pdfIn PDF document text
    • https://cdn.sqhk.co/pasezateda/dpXqIwD/shark_eating_seal_pictures.pdfIn PDF document text
    • http://zunuruxeguxifi.mygamesonline.org/61624914623.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/bezutu/push_dagger_knife_template.pdfIn PDF document text
    • https://s3.amazonaws.com/satudifin/wedding_place_card_template.pdfIn PDF document text
    • http://xolavozezimodan.onlinewebshop.net/dragon_age_origins_best_class_for_archer.pdfIn PDF document text
    • https://s3.amazonaws.com/jesidofefe/wagizaxeboduvufepoje.pdfIn PDF document text
    • https://s3.amazonaws.com/viboxikuz/4319676189.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_off0000dc02.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xDC02 5208 bytes
SHA-256: 283d1f7ad9f7c015e7169e92c616bc3cd7b21bc7251aa818dec9a896d1b004d8
font_01_sfnt_off0000edbd.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xEDBD 10032 bytes
SHA-256: ff851c4a097e0c209cc8aa4f3a0398b6f9175851a5c887cf1869df6c55e7c32d