Malicious PDF — malware analysis report

Static analysis result for SHA-256 1451c660799d5c0b…

MALICIOUS

PDF

66.3 KB Created: 2021-02-25 03:57:47 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-04-25
MD5: 07786cd7cbe4de2bda6bc8c42cd3d638 SHA-1: 9ab851a29c80e3a8a6a4a526bfeddbb0ab2bfc38 SHA-256: 1451c660799d5c0bc78d68fdd0192166bed0efba8ffd092b90e7963fa2c4826e
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/award?keyword=breville+juice+fountain+cold+juicer PDF link annotation
    • https://cdn-cms.f-static.net/uploads/4427780/normal_6015bbccb394e.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4427811/normal_5fcf35c253362.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4470040/normal_5fd3448cb3477.pdfIn PDF document text
    • http://wotidoteked.mywebcommunity.org/how_to_install_foxit_reader_printer.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4448719/normal_5fe51d919289c.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4383322/normal_60237dd9292e7.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4446645/normal_5fd07bf29f468.pdfIn PDF document text
    • http://wownatural.fun/60870297848epwz5.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4474169/normal_6034cd7fca00e.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4408464/normal_6019c66ca037f.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4449600/normal_5ff671739a880.pdfIn PDF document text
    • http://evakuator-uga.ru/sneaker_hd_wallpaper_iphone_11_pro2x412.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/batiku/application_form_for_schengen_visa_vfs.pdfIn PDF document text
    • http://diwavubodinaroj.myartsonline.com/91842863690.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_off0000c7a9.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xC7A9 5024 bytes
SHA-256: d0ab241171ed8c390af0cc15f5dfa737de477cf66d37aa5ab102af1f134a6c1c
font_01_sfnt_off0000d8da.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xD8DA 9860 bytes
SHA-256: 9ffb5b5b48dbe4eed9c81ed6d7bf39ea62c2e2aed5a094908d67f91798429621