Malicious PDF — malware analysis report

Static analysis result for SHA-256 1fbe4da1a8ed2c43…

MALICIOUS

PDF

74.4 KB Created: 2021-01-30 05:56:08 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-10
MD5: 0e9300f9d44e46c931d6707db9915ab7 SHA-1: fa9abcbdca4d8223a2cedf3e911568b7667f6a74 SHA-256: 1fbe4da1a8ed2c434e73757178aef08faf982ec3c125e9e1a7e7b3813a8ca6bc
136 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9998

Heuristics 5

  • ClamAV: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0
  • 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://jottigo.ru/wb?keyword=virtual%20reality%20scary%20roller%20coaster%20rides PDF link annotation
    • https://cdn-cms.f-static.net/uploads/4501962/normal_600fa00058264.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4472204/normal_5fcca8c98d246.pdfIn PDF document text
    • http://hamlikjorettoop.ru/tasewigekusosafanipiso0bwd9.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4446161/normal_6007bb9d75dfe.pdfIn PDF document text
    • http://seedcraft.online/33366345847f0oxf.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4408170/normal_5fe5b7f62228c.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4480173/normal_5fe43db44a14b.pdfIn PDF document text
    • http://luvetikemo.66ghz.com/suxizanuporakalagu.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4479439/normal_600affca6daf0.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4481423/normal_5fe1b837799b4.pdfIn PDF document text
    • http://lukanovetefitef.22web.org/2013_buick_verano_parts_manual.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://sufumawug.epizy.com/81638842609.pdfIn PDF document text
    • http://livuwiga.rf.gd/puligewojagabodujib.pdfIn PDF document text
    • http://narivisifan.rf.gd/unfreeze_my_credit_report_transunion.pdfIn PDF document text
    • http://xajumin.epizy.com/android_alertdialog_ok_button_color.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_off0000e7a4.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE7A4 5000 bytes
SHA-256: 3238c20e59bc7a01ebb5a82031f366cad0b450969056d3c5fa7f8ebc4e169329
font_01_sfnt_off0000f8b9.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF8B9 10544 bytes
SHA-256: b9bcbb231de5fb4edcb84f4fdcfdbe173b08b5999e90ca54286df2fc43d9f720