Malicious PDF — malware analysis report

Static analysis result for SHA-256 d11936edaa809ca8…

MALICIOUS

PDF

72.4 KB Created: 2021-02-23 20:40:24 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-10
MD5: a4c96cdee9fdb33caa269b0190c371e7 SHA-1: 0b1eb767c2e9b2b3d440d4d9c08396954b70d8f3 SHA-256: d11936edaa809ca8e371577dc4d47e9e3ab87c14b60dbf55b15652baaea3c8fe
156 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9997

Heuristics 6

  • ClamAV: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0
  • 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.
  • Callback phishing phone lure medium SE_CALLBACK_LURE
    Document asks the user to call a phone number in billing, refund, subscription, fraud, or security context — consistent with callback phishing or tech-support scam patterns. Suppressed for legitimate-issuer (IRS/gov/official-form) or Microsoft license-boilerplate documents that carry no urgency or charge/dispute escalation.
  • 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://seumenha.ru/wb?keyword=samsung%20soundbar%20ah59%20remote%20not%20working PDF link annotation
    • https://cdn.sqhk.co/pizililiv/IhdCSob/cute_teen_wallpapers_teenage_girl_aesthetic.pdfIn PDF document text
    • http://konujojijitezu.iblogger.org/timanumi.pdfIn PDF document text
    • http://lowixop.22web.org/dovagixuku.pdfIn PDF document text
    • http://ranixug.iblogger.org/16672413296.pdfIn PDF document text
    • http://tazizaj.iblogger.org/40175901653.pdfIn PDF document text
    • http://bimiwefumukiv.22web.org/kofiwe.pdfIn PDF document text
    • https://cdn.sqhk.co/damapegapi/ejg7PS3/best_download_manager_for_chrome_android.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://tukudapig.epizy.com/forza_horizon_4_pc_requirements.pdfIn PDF document text
    • https://s3.amazonaws.com/dowesitobuga/agile_model_in_manual_testing.pdfIn PDF document text
    • https://s3.amazonaws.com/voxulija/46843023874.pdfIn PDF document text
    • https://s3.amazonaws.com/jivamubug/algebra_chapter_1_test_answers.pdfIn PDF document text
    • http://zavinawotomuvef.epizy.com/buwagaz.pdfIn PDF document text
    • http://befokube.rf.gd/lagu_armada_band_2018.pdfIn PDF document text
    • https://s3.amazonaws.com/sixenogafopoj/22935030266.pdfIn PDF document text
    • http://kesuleruvepo.rf.gd/aggregate_percentage_meaning_in_cat_form_2019.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_off0000dc12.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xDC12 5888 bytes
SHA-256: 32a246d2526a434042354bf7b994458e4650024d6338117b156b427679aca8c6
font_01_sfnt_off0000eff9.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xEFF9 10756 bytes
SHA-256: 2a2cb466aca7ebf4203e3d808d6086a1b17d87d8c578a0a37ab4d9c9566ab924