Malicious PDF — malware analysis report

Static analysis result for SHA-256 254eb41c36901333…

MALICIOUS

PDF

69.8 KB Created: 2021-02-13 00:56:55 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-10
MD5: 73ac905b5548fd4ed24a008323ee9d2b SHA-1: 2a9a8a967becdda1211f59fd92ebd3fa10b8c0ba SHA-256: 254eb41c36901333822501d0be09a2497c4e2763ace9e520166b5e46fd53db78
194 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
  • PDF links to known malicious redirector infrastructure critical PDF_MALICIOUS_REDIRECTOR_LINK
    PDF contains a clickable URI to redirector infrastructure used by a known malicious PDF SEO/adware delivery campaign. These documents typically rely on user interaction and redirect chains rather than a PDF parser vulnerability.
  • 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.
  • 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://crophysi.ru/wb?keyword=candlelight%20carol%20rutter%20music%20sheet In PDF document text
    • https://cdn.sqhk.co/wefenosefob/aY6ibij/82027310781.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4473049/normal_600fbf6d48d22.pdfIn PDF document text
    • https://cdn.sqhk.co/lopokevofoti/fggijjc/sopixi.pdfIn PDF document text
    • http://volosaty100.xyz/99367831918xmsb2.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4386087/normal_5fdbe1426d078.pdfIn PDF document text
    • https://cdn.sqhk.co/fasotaluvose/jhgijjf/daresirobelog.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4427268/normal_5fdb82037c962.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4425919/normal_5fcf171ce647a.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4418788/normal_60210faabb7bd.pdfIn PDF document text
    • https://cdn.sqhk.co/savageven/XjhjaQZ/votepujokukulibu.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4492892/normal_6010c4f256bd8.pdfIn PDF document text
    • http://idealslimitalia-official.site/is_that_all_you_got_in_spanisha5esh.pdfIn PDF document text
    • http://hookup154.online/93362174528upe72.pdfIn PDF document text
    • http://copyright-rules-help.com/tamasha_full_movie_free_mp4ii7dz.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4463565/normal_600d6bc84f74a.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_off0000d468.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xD468 5260 bytes
SHA-256: fd2e276510bc4a408c96df8f8373962180f42724c8bdcbdd7eba3b00cb496b80
font_01_sfnt_off0000e618.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE618 10528 bytes
SHA-256: bdf3f9c1fb8dedf6012e9481e81c9cb6e146a626bfb8520a79e6ca7d55135d1c