Malicious PDF — malware analysis report

Static analysis result for SHA-256 c36f585c21f3467b…

MALICIOUS

PDF

69.9 KB Created: 2021-02-27 22:07:29 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-04-25
MD5: 89ccbd469f69d22ff9ef5e09ae75dd3a SHA-1: 77c7708d11eaad0027f5feb1b2f5755e29bbc757 SHA-256: c36f585c21f3467b0f994d1aca24e9fb275ef4011625df7b7bb392d7425a8330
136 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9997

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://xajibur.ru/wix?keyword=funnel+lab+equipment+function PDF link annotation
    • https://cdn.sqhk.co/difixoruze/cPibijl/pifuzarokebupuwurezavima.pdfIn PDF document text
    • https://vejupurujiku.weebly.com/uploads/1/3/1/6/131606174/mafip_zevubo_zetanijemetimur_femimuzidij.pdfIn PDF document text
    • https://cdn.sqhk.co/vumorumuvogi/ijficid/the_office_season_7_trivia_questions_and_answers.pdfIn PDF document text
    • https://cdn.sqhk.co/bafiweba/fjhGid6/laduxapifipipitamoru.pdfIn PDF document text
    • https://verumoxozuvije.weebly.com/uploads/1/3/1/4/131407377/1aab1464a.pdfIn PDF document text
    • http://leon-stavki.info/19163032785ewmvy.pdfIn PDF document text
    • http://masovizifuzaro.iblogger.org/is_dad_supposed_to_be_capitalized.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4485310/normal_60029216207a2.pdfIn PDF document text
    • https://davugewozo.weebly.com/uploads/1/3/1/4/131408984/wajapofi.pdfIn PDF document text
    • https://cdn.sqhk.co/susiwebuvowo/Qjbb8hc/matrix_bullet_time_rig.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4417325/normal_5fdd929325f62.pdfIn PDF document text
    • https://cdn.sqhk.co/bewewojiwo/bjaxgdJ/tap_tap_ninja_jutsu_mod_apk.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_off0000d7b4.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xD7B4 5108 bytes
SHA-256: 7a623a5c84dfd73ae406f10214c5e4cec2facadd97079f1a32c849399279c940
font_01_sfnt_off0000e911.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE911 10032 bytes
SHA-256: c8a7dc427e1d6c9322baca5ba228344297212c93cd01392afed8c4e9becf1f24