Malicious PDF — malware analysis report

Static analysis result for SHA-256 029c51597506649e…

MALICIOUS

PDF

71.9 KB Created: 2021-03-04 07:42:22 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-10
MD5: 75f805bffd79d9c85ed59b6519156d5e SHA-1: 1548ff6b02b43c4a1ed13ec4d39ae508efb148b9 SHA-256: 029c51597506649ee72b836b31a7d5720ce9202ba36b572537d3f63601fb8b68
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://maypoin.ru/award?keyword=how+to+change+oil+on+a+bobcat+t190 PDF link annotation
    • https://cdn-cms.f-static.net/uploads/4449009/normal_600c0bfe82708.pdfIn PDF document text
    • http://desokore.medianewsonline.com/69487559124.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4485322/normal_5fe18e911b1df.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4424029/normal_5fc7daa2e9356.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4479445/normal_600ae924a46ac.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4480732/normal_5fe367e071358.pdfIn PDF document text
    • http://supportcopyright.net/35656207948cthau.pdfIn PDF document text
    • http://blancer.xyz/bagasse_board_project_reportkva8x.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4446924/normal_6025181fdb703.pdfIn PDF document text
    • http://aires.fun/12571447170m4z9y.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4386334/normal_60081dfd115e1.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/vuxalirudidel/whatsapp_for_windows_64_bit.pdfIn PDF document text
    • https://s3.amazonaws.com/nuselufuzo/11391973258.pdfIn PDF document text
    • https://s3.amazonaws.com/nisiwanolom/gisanimowap.pdfIn PDF document text
    • https://s3.amazonaws.com/zoluwivebiro/basel_3_post_crisis_reforms.pdfIn PDF document text
    • http://fozosoripivo.epizy.com/besos_de_chocolate_gratis.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_off0000dcac.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xDCAC 5332 bytes
SHA-256: 2898ded44fa1d2ba78a0287afe268e2d471fc9ccf380f340361263e2251caac6
font_01_sfnt_off0000eee7.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xEEE7 10492 bytes
SHA-256: 3cc04ed2b77f6c704e949fb533d9046b189296f35b6d31797dbfecbbf6487632