Malicious PDF — malware analysis report

Static analysis result for SHA-256 92325a52aac57aeb…

MALICIOUS

PDF

65.6 KB Created: 2021-02-21 05:49:29 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-04
MD5: 1599c1f5505bb112c6fb6b1a59e7fd5e SHA-1: c225a329cb726ab6f87ee4edd18240e61697f4f3 SHA-256: 92325a52aac57aebf14c6b6e88e3c7573f90ae4da34e94d2737f2bddb0f48423
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://baarspo.ru/wix?keyword=filma+me+titra+shqip+romance PDF link annotation
    • https://static.s123-cdn-static.com/uploads/4369330/normal_5fdeab7bd914c.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4393499/normal_60175fea59ea9.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4476127/normal_5fd9c267421c3.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4381748/normal_5fca27ca96e68.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4420747/normal_5ffa60c1981a6.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4478951/normal_5ff2b9d0ea60f.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4465703/normal_5fd2030a97e80.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4387565/normal_6021f648e53be.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4417423/normal_5ffa99025ae65.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • https://s3.amazonaws.com/tidigudetefumof/wovukazolesuxe.pdfIn PDF document text
    • https://s3.amazonaws.com/wipotegadodorek/20499121559.pdfIn PDF document text
    • https://s3.amazonaws.com/faduxodiwo/deep_pocket_fitted_sheet_only.pdfIn PDF document text
    • https://s3.amazonaws.com/nagudo/gekuso.pdfIn PDF document text
    • https://s3.amazonaws.com/sagotomagin/baby_girl_shoe_template_fondant.pdfIn PDF document text
    • https://s3.amazonaws.com/kaxukok/gemasad.pdfIn PDF document text
    • https://s3.amazonaws.com/kukupunopedon/haccp_industria_alimentaria.pdfIn PDF document text
    • https://s3.amazonaws.com/radubozufiwo/gupegogidagatelazo.pdfIn PDF document text
    • http://dodigemadepa.epizy.com/bufejemukubobuzobamabubeb.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 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000c623.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xC623 5252 bytes
SHA-256: bdbe3954b5ddfd1b81e3a6761c58276d473a71b41da8e817d325e5f6c4cc6845
font_01_sfnt_off0000d7d2.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xD7D2 9856 bytes
SHA-256: cea6c1d6b5c1c6c0c6aa7c8f095272a1bade77d98b34d513f1ccec107e0c3561