Malicious PDF — malware analysis report

Static analysis result for SHA-256 bcfe9fae9011d30d…

MALICIOUS

PDF

72.1 KB Created: 2021-02-15 19:25:03 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-17
MD5: 43b0346d4dff59b23975f429bb640b47 SHA-1: 6314b0df3515fb16edb1008d83236b81e12b21d2 SHA-256: bcfe9fae9011d30daab4a427d2b5b2a43a1e0551084cd7126d5953bcae4772f5
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/wix?keyword=kolcraft+crib+mattress+reviews PDF link annotation
    • https://cdn-cms.f-static.net/uploads/4384144/normal_601dbb25863d0.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4496580/normal_5ff0a1cd989fb.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4383327/normal_600f191b012c9.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4371536/normal_5fe009a371356.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4403819/normal_5fffbe116a9f0.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4454543/normal_5fc5d95a0d385.pdfIn PDF document text
    • https://cdn.sqhk.co/ketifoseja/chir2WC/mini_weekender_bag_beis.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4450723/normal_5ff7f168486d6.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4446280/normal_600c6a7dc2f6c.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4409095/normal_601cabc292e0e.pdfIn PDF document text
    • https://cdn.sqhk.co/zasokolof/heSO7c0/92030143248.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://www.daltonmaag.com/In PDF document text
    • http://wowimiberosodav.epizy.com/nhtsa_driver_distraction_guidelines_phase_2.pdfIn PDF document text
    • http://nilipinuz.rf.gd/google_assistant_app_for_iphone.pdfIn PDF document text
    • http://meraxemuvixise.epizy.com/aflac_fax_cover_sheet.pdfIn PDF document text
    • http://fozajekipijijax.epizy.com/23440612018.pdfIn PDF document text
    • http://kurujabarufuxe.rf.gd/apollo_justice_3ds.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 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000cfe6.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xCFE6 4968 bytes
SHA-256: 87c19cf5a3d59763abb7b625b2ebac6b58f62353eb7ffa7cb99cfd9aa94bfdb4
font_01_sfnt_off0000e0dd.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE0DD 10684 bytes
SHA-256: d1a4cb8cfad9be9bf1d7e0352a9d10e3eb642cde30421b04b50aa4fd6f685aa8
font_02_sfnt_off0001055c.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x1055C 4324 bytes
SHA-256: cd94ef65598b1866d0653cdd88243d989fd81359c0e770c2d3a4858f1c2f6d34