Malicious PDF — malware analysis report

Static analysis result for SHA-256 4cf208bb2a3eb61c…

MALICIOUS

PDF

69.6 KB Created: 2021-03-01 15:47:50 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-10
MD5: e81eb44c5232ac3d08b5b7942e4f2693 SHA-1: d78994bb22d63b31ac3a38e22c84bf83102ddfcf SHA-256: 4cf208bb2a3eb61c0f788123a5546e80e390e402028d8053f286eee294aa7807
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://fokemale.ru/strik?utm_term=air+transportation+a+management+perspective+7th+edition+pdf+free+download PDF link annotation
    • https://static.s123-cdn-static.com/uploads/4366336/normal_5febbf7f6e10f.pdfIn PDF document text
    • http://viniveba.mywebcommunity.org/napemivajazenutajifatubim.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4388825/normal_5fe51c29ea0fd.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4446170/normal_601e8277268f1.pdfIn PDF document text
    • http://pedumerik.sportsontheweb.net/love_story_movie_2020_new_hd.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4405642/normal_5fc5bbe13eb66.pdfIn PDF document text
    • http://dawexefif.getenjoyment.net/zujujurokexixa.pdfIn PDF document text
    • http://wewogokuwidu.mywebcommunity.org/what_are_the_12_fruit_of_the_holy_spirit.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/tomaxade/manualidades_faciles_de_hacer_con_material_reciclado.pdfIn PDF document text
    • http://bejuzijufure.rf.gd/harman_pellet_stove_dealers_in_pa.pdfIn PDF document text
    • https://s3.amazonaws.com/fedojigudaj/63008870231.pdfIn PDF document text
    • http://sazasewugekupej.onlinewebshop.net/besesupuxemi.pdfIn PDF document text
    • http://fodabobaxuti.epizy.com/zujimikalagos.pdfIn PDF document text
    • https://s3.amazonaws.com/serogajugomiji/kotexudi.pdfIn PDF document text
    • https://s3.amazonaws.com/betefowubevat/movie_counter_english_movie.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_off0000d0b9.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xD0B9 5792 bytes
SHA-256: b907973bb907787419e965e04476a0f2bd9c5085232ccf61e2f4bb4d3215ee06
font_01_sfnt_off0000e46a.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE46A 10612 bytes
SHA-256: 0b587fb338ef8daee9692af326b06708ab34ecfaf436acd256f160bc73c094b4