Malicious PDF — malware analysis report

Static analysis result for SHA-256 2d9b308f21048c94…

MALICIOUS

PDF

73.0 KB Created: 2021-02-17 15:38:33 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-04
MD5: 93fb7dafba23f4ea43ea2a6bf2b5cad0 SHA-1: 8b620c92ab01c2a81aca3666f0770eb11b1dc546 SHA-256: 2d9b308f21048c941822872be34dc74fee6c4d196dba123d1f67c408d438e1fd
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://druttle.ru/wix?keyword=tomorrowland+2020+tickets+virtual PDF link annotation
    • https://static.s123-cdn-static.com/uploads/4376354/normal_6004987480d7a.pdfIn PDF document text
    • https://cdn.sqhk.co/lasijutag/dwc9jh2/alivio_medical_center_cicero.pdfIn PDF document text
    • https://cdn.sqhk.co/goxobuve/Uhhk6jb/business_manager_duties_in_student_council.pdfIn PDF document text
    • https://cdn.sqhk.co/wosipuvetot/y8YzhdO/fezetigal.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4447662/normal_60298a89dba84.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4416923/normal_60215f65a48dc.pdfIn PDF document text
    • http://strahuemsya.info/2020_toyota_camry_xse_hybrid_for_saledlydg.pdfIn PDF document text
    • https://cdn.sqhk.co/wojusipi/Ojfjbhh/glitch_cam_pro_cracked_apk.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4478933/normal_600454a004f35.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4370054/normal_5fcd22c4ce70b.pdfIn PDF document text
    • https://cdn.sqhk.co/zojixemem/dZhcMhf/13226076195.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4476148/normal_6029df1213dc7.pdfIn PDF document text
    • http://flipping-car.online/berber_tattooingifz5q.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4489251/normal_5ff7813daccd7.pdfIn PDF document text
    • http://zzzmmmmejjj.space/bemis_toilet_seat_manualu3wxj.pdfIn PDF document text
    • https://cdn.sqhk.co/naludibeg/hiijJau/28481164292.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4406787/normal_5fdee53bc0ba1.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4382192/normal_5fe99679a91b5.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_off0000e193.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE193 5524 bytes
SHA-256: 682639f93cf194f7198bbe645627e0eb7e7c1609c4c392295a8b7dd06fe894d8
font_01_sfnt_off0000f456.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF456 10084 bytes
SHA-256: 80222682861d6ad63a05d4bac5df14cbf7f7edba53e564b4531f8fe3ccaa7653