Malicious PDF — malware analysis report

Static analysis result for SHA-256 435c60a482b4cfe7…

MALICIOUS

PDF

76.1 KB Created: 2021-02-09 05:27:57 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-10
MD5: 2b5e56cdcec1ff8c769d322e8658d215 SHA-1: 6e1563eabe99acd6baeaaf1064a462d31bf0e6c2 SHA-256: 435c60a482b4cfe7041fab4226da829e9c8f928623fdc54f4e890d6b9b6438b4
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://maypoin.ru/wb?keyword=inflammation%20and%20metabolic%20disorders%20pdf PDF link annotation
    • https://cdn.sqhk.co/sivefuxonix/Yijgeic/botagazapozizake.pdfIn PDF document text
    • http://visionnew.xyz/treasurer_s_report_template_for_nonprofit_organizationmpo9k.pdfIn PDF document text
    • https://cdn.sqhk.co/remezebona/xwjjbhh/vufokasow.pdfIn PDF document text
    • https://cdn.sqhk.co/bexamajuw/iihjaid/goosechase_app_logo.pdfIn PDF document text
    • https://cdn.sqhk.co/baxorurifina/hdjh2ji/nba_2k20_soundtrack_new_songs.pdfIn PDF document text
    • https://cdn.sqhk.co/gofelaxes/9xghigF/koala_bear_cartoon_pictures.pdfIn PDF document text
    • https://cdn.sqhk.co/zowonefaso/i39giVa/turning_radius_calculator_online.pdfIn PDF document text
    • https://cdn.sqhk.co/togodawexu/jja0gif/42704860867.pdfIn PDF document text
    • https://cdn.sqhk.co/towinomer/LwhekGK/judemurexonarebapivenidil.pdfIn PDF document text
    • https://cdn.sqhk.co/dederubap/hbgjkii/pixel_swordfish_io_best_fish.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4384304/normal_60188d95ad701.pdfIn PDF document text
    • https://cdn.sqhk.co/fuvebopeweb/TjgiafD/ouroboros_tattoo_arm.pdfIn PDF document text
    • https://cdn.sqhk.co/suxumeva/giOY5QK/sefijafepeg.pdfIn PDF document text
    • https://cdn.sqhk.co/kixagixupo/IhgifRt/rafunomi.pdfIn PDF document text
    • https://cdn.sqhk.co/mumesimasozo/dUKDmgj/bmc_healthnet_plan_masshealth_mco.pdfIn PDF document text
    • http://apple-fruit.space/tenofavusulatexanazinjorlv.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4415068/normal_5fe3af712ee2a.pdfIn PDF document text
    • https://cdn.sqhk.co/lexijunibul/igUhckY/xaxako.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn 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_off0000ed7e.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xED7E 5380 bytes
SHA-256: e1bf96149a52da777d6b60d135281ee4b448a1ded617d42141d2e5c50e3b1c59
font_01_sfnt_off0000ffad.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xFFAD 10416 bytes
SHA-256: 2ec7dec1e7035c081cc8dd95bfa64ccd36414cc916c998b33653530ab7c39f37