Malicious PDF — malware analysis report

Static analysis result for SHA-256 490a738f7f96d792…

MALICIOUS

PDF

72.5 KB Created: 2021-03-02 15:14:20 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-10
MD5: 31324f28eac28dac2442093994b3a834 SHA-1: b502e569b89ae4ca7313ce47365445e4780e0ae5 SHA-256: 490a738f7f96d7927eb105decd3ac64a13372012de5aec0f5c74068a8cbef54b
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://xajibur.ru/award?keyword=weber+bbq+natural+gas+jets PDF link annotation
    • https://cdn.sqhk.co/rolileduvof/hbjDRgc/nail_art_designs_easy_for_beginners.pdfIn PDF document text
    • https://jizufolikoni.weebly.com/uploads/1/3/4/3/134349493/9247448.pdfIn PDF document text
    • https://pixipemojawipe.weebly.com/uploads/1/3/4/4/134459682/xotidulugupotadu.pdfIn PDF document text
    • https://xaredoluvowa.weebly.com/uploads/1/3/1/8/131871785/fonixijow.pdfIn PDF document text
    • https://tosoremekik.weebly.com/uploads/1/3/4/7/134771766/zezasop-dofezunisi-luzasazadew.pdfIn PDF document text
    • https://cdn.sqhk.co/mekibekowufe/kggliej/1068069737.pdfIn PDF document text
    • http://jekeluxuto.mywebcommunity.org/mr_heater_big_buddy_dimensions.pdfIn PDF document text
    • https://cdn.sqhk.co/baxafapunubi/Okowujd/98421065661.pdfIn PDF document text
    • http://sokegex.mywebcommunity.org/26171123754.pdfIn PDF document text
    • http://xawegap.mywebcommunity.org/48274241325.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://nozozuwovore.atwebpages.com/zafapawonegekaxoz.pdfIn PDF document text
    • https://s3.amazonaws.com/wixanarer/67911927644.pdfIn PDF document text
    • http://zotubune.myartsonline.com/pazugavubaxovaviwikebur.pdfIn PDF document text
    • https://s3.amazonaws.com/wizuluworafid/chelsea_vs_arsenal_highlight_mp4.pdfIn PDF document text
    • http://rabatelekovufar.myartsonline.com/53333685820.pdfIn PDF document text
    • http://bagugexasorip.myartsonline.com/52276668732.pdfIn PDF document text
    • https://s3.amazonaws.com/wiwamoxamo/74616546591.pdfIn PDF document text
    • https://s3.amazonaws.com/debiwelof/all_american_slurp_read_aloud.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_off0000df25.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xDF25 5208 bytes
SHA-256: 94bc9365ccc05712fe21723d3cbecbd68324fd48110ae968367fd702543fea67
font_01_sfnt_off0000f0fb.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF0FB 10476 bytes
SHA-256: e2c694dea027b16af77f5120869eda8c2d2e5a5526888db39d5959fa7f0a180f