Malicious PDF — malware analysis report

Static analysis result for SHA-256 441c15102f27569d…

MALICIOUS

PDF

68.1 KB Created: 2021-02-06 21:08:55 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-10
MD5: 5a7aa836b34b6c226d7207898745e1b1 SHA-1: c5b31315ade1ea2831ad583aa59f18a44c89de1d SHA-256: 441c15102f27569d6fbbec26bd9e43c3864c20450fd0c3b2c50fa18148fc3f7f
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/aws?utm_term=gender+equality+news+report PDF link annotation
    • http://magic-world.site/eyewitness_report_formatg0id8.pdfIn PDF document text
    • http://characduwe.space/hashtags_for_youtube_generator4vlph.pdfIn PDF document text
    • http://salopkisa.website/80653894472yycp2.pdfIn PDF document text
    • http://findattime.com/introduction_to_electroacoustics_and_audio_amplifier_designdpeuo.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/fakuguvil/bootloader_samsung_ace_3.pdfIn PDF document text
    • https://s3.amazonaws.com/wizuluworafid/ios_app_store_games_for_android.pdfIn PDF document text
    • https://s3.amazonaws.com/solonebosop/4892385439.pdfIn PDF document text
    • https://s3.amazonaws.com/jaloto/klinger_1000_gasket_sheet.pdfIn PDF document text
    • https://s3.amazonaws.com/sisaxu/37195261058.pdfIn PDF document text
    • https://s3.amazonaws.com/gewuwasi/43833903239.pdfIn PDF document text
    • https://s3.amazonaws.com/timeziso/98815112808.pdfIn PDF document text
    • https://s3.amazonaws.com/jenisozazewubo/all_eyez_on_me_free_movie.pdfIn PDF document text
    • https://s3.amazonaws.com/fosalizuzu/morelilifovoregutugedor.pdfIn PDF document text
    • https://s3.amazonaws.com/jiwisigetizoxif/pampered_chef_can_opener_manual.pdfIn PDF document text
    • https://s3.amazonaws.com/sitok/superannuation_kit_form_6.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_off0000ce01.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xCE01 5304 bytes
SHA-256: d0a8e483947893d9f262662963b2a848d33da82c32c8f4b24149e8902c9dbda0
font_01_sfnt_off0000e030.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE030 10432 bytes
SHA-256: b44849cdcf8b791a564a61c0bd8d626c18ea4b36f7b0b6b12e28f48f426ed6d4