Malicious PDF — malware analysis report

Static analysis result for SHA-256 bcbfb3f83b898b48…

MALICIOUS

PDF

68.8 KB Created: 2021-02-16 21:56:47 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-04-25
MD5: 2f07191137340e978953825727746a5f SHA-1: f713f93df48b0430e910548e23559d37bc36e17d SHA-256: bcbfb3f83b898b482570127ed64635e67c87d0a225a2dec7eb7309f0193cfd0e
136 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9997

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/wix?keyword=noire+the+nail+bar+pigeon+forge+tn PDF link annotation
    • http://easy-money-cash.space/lanezaragiroxaroters40u7.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4372737/normal_601995e3b0fd2.pdfIn PDF document text
    • https://cdn.sqhk.co/tefazaturar/hbAWia9/online_marketing_strategies.pdfIn PDF document text
    • https://cdn.sqhk.co/nananava/gcjfOhb/58835238982.pdfIn PDF document text
    • https://cdn.sqhk.co/futevanu/jdDghEU/41478678509.pdfIn PDF document text
    • https://cdn.sqhk.co/vagofedewat/i4JJiaN/63820719368.pdfIn PDF document text
    • https://cdn.sqhk.co/vimerokil/yHShbdl/real_car_parking_games_3d_mod_apk.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4413228/normal_6018a52edfd4a.pdfIn PDF document text
    • http://nicechange.space/human_resource_management_salary_with_associates_degreefahrr.pdfIn PDF document text
    • http://vipmanmarket.space/pugofezorerawefdr71l.pdfIn PDF document text
    • http://xviiivbgz.com/sinotec_tv_manualzpvt4.pdfIn PDF document text
    • http://gprofights.ru/84831833950smquq.pdfIn PDF document text
    • https://cdn.sqhk.co/jisaside/A4F6Bhf/vonewiwupunekumub.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_off0000d318.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xD318 5096 bytes
SHA-256: fe2011165644d219e6d990f1f02af9e7c5b1de7fb00d49c9c817281b1b58ca06
font_01_sfnt_off0000e46b.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE46B 9928 bytes
SHA-256: ca5ce2ead4a666ca87711ace57dad25d650f9ccd477bfa3dcef42bbc949d9dd5