Malicious PDF — malware analysis report

Static analysis result for SHA-256 bbded8dcfc2067ac…

MALICIOUS

PDF

65.3 KB Created: 2021-02-04 15:59:56 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-04-10
MD5: a29f36cd9069e630c67a805a366214a8 SHA-1: c6e679eca11dfc0befe0a08193fda23c0bab7d10 SHA-256: bbded8dcfc2067ace0f4588469da84d043911f68b259cd40db4e864effe29172
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://leonvi.ru/123?utm_term=kidkraft+table+and+chairs+grey PDF link annotation
    • https://cdn.sqhk.co/dewavasese/aidIwOn/deckeleven_s_railroads_2_apk_mod.pdfIn PDF document text
    • http://service-hire.com/zadokutunolajojamizudoxisiir51.pdfIn PDF document text
    • http://wssummer.space/nirobabaxupekategerewhwn4y.pdfIn PDF document text
    • http://legalvictory.group/figure_drawing_proportions_worksheety6b5b.pdfIn PDF document text
    • https://cdn.sqhk.co/vasinabew/chagieu/snowflake_stock_forecast_2021.pdfIn PDF document text
    • http://youralteragoods.com/bluegrass_songbookq311b.pdfIn PDF document text
    • https://cdn.sqhk.co/rogapakaler/hiFXujf/94705932253.pdfIn PDF document text
    • http://vugiris.22web.org/2122628150.pdfIn PDF document text
    • http://voiprormul.xyz/10058902374bjynm.pdfIn PDF document text
    • http://freshka.fun/4545279594570d82.pdfIn PDF document text
    • http://momentshop.website/mxr_10_band_equalizer_settings1c92b.pdfIn PDF document text
    • https://vabomunebalobi.weebly.com/uploads/1/3/1/8/131856010/pifipowoxudezi.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://lunaxugezejotu.epizy.com/rmlau_examination_form_online_2019-_20.pdfIn PDF document text
    • https://s3.amazonaws.com/litunux/nutritional_information_in_canned_salmon.pdfIn PDF document text
    • https://s3.amazonaws.com/dusined/chronic_schistosomiasis.pdfIn PDF document text
    • https://s3.amazonaws.com/xonaxevetaf/17924948046.pdfIn PDF document text
    • http://fajamoluw.epizy.com/airtel_money_apk_for_android.pdfIn PDF document text
    • https://s3.amazonaws.com/gapivegek/zitesusezivuripe.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_off0000c07c.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xC07C 5560 bytes
SHA-256: f1b95d7672ee85cc8f1731e43d0f9d6e22b727b818f36af2f8fdbe4d9b59b60f
font_01_sfnt_off0000d36f.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xD36F 10400 bytes
SHA-256: 00c75eeebb97fd3b2948500c79cecdbd326db2fba561c2829ccf0ce25ae30fcd