Malicious PDF — malware analysis report

Static analysis result for SHA-256 5c2e3a4ac53837eb…

MALICIOUS

PDF

90.9 KB Created: 2021-02-28 10:45:27 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-04-25
MD5: 898e7eb545faba083ec419824a2e584e SHA-1: daea6da881e7e11408046fad8730bc5210f730ee SHA-256: 5c2e3a4ac53837ebb058abd38a2154865805d6f7e7ab3f32067e8217858a167d
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://baarspo.ru/wb?keyword=call%20me%20by%20your%20name%202%20book%20plot PDF link annotation
    • http://smotrikino.fun/2019_honda_accord_sport_manual_reviewsmsc5y.pdfIn PDF document text
    • http://polnews.xyz/71066543942oar9h.pdfIn PDF document text
    • http://graatorama.fun/83127195691f8feu.pdfIn PDF document text
    • http://jolixasij.sportsontheweb.net/sewolulapamemuwuxogisojes.pdfIn PDF document text
    • http://folugomobok.getenjoyment.net/international_finance_corporation_subsidiaries.pdfIn PDF document text
    • http://freshka.fun/85374818181dawv6.pdfIn PDF document text
    • http://giveaway2020.info/57335976613u9nuq.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/gotenukevepunin/guidelines_for_making_fruit_salad.pdfIn PDF document text
    • https://s3.amazonaws.com/sajezife/force_sensor_piezo_datasheet.pdfIn PDF document text
    • https://s3.amazonaws.com/nademopor/65453611992.pdfIn PDF document text
    • https://s3.amazonaws.com/winumigutam/puwarividineges.pdfIn PDF document text
    • http://newemepakirid.myartsonline.com/asus_rt-n12_3_in_1_router_setup.pdfIn PDF document text
    • http://gurebuvijo.epizy.com/working_of_2_stroke_diesel_engine.pdfIn PDF document text
    • https://s3.amazonaws.com/mejobu/bethune_college_admission_2019_application_form.pdfIn PDF document text
    • https://s3.amazonaws.com/kewakuko/kenmore_elite_washer_error_codes.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_off00012866.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x12866 5132 bytes
SHA-256: ee497c2d2852838c3d4c961913e078a2b460e0c2ec35ea5f9ecd12de786cbc77
font_01_sfnt_off000139cb.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x139CB 10784 bytes
SHA-256: a8453cebcb0c20f088d0dccf992b6527d0cf66927abb8cad3d6f9cd90af570df