Malicious PDF — malware analysis report

Static analysis result for SHA-256 7d95bf275529b75b…

MALICIOUS

PDF

71.5 KB Created: 2021-03-03 06:34:50 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-04-25
MD5: 1b5deed20106b14e262042130dc064c1 SHA-1: 8b46bd00329820b3dc7cf95f29cbdfb40dff21c8 SHA-256: 7d95bf275529b75bf4775efd0ffab37f62f1d57038b28453c82730c423174806
194 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
  • PDF links to known malicious redirector infrastructure critical PDF_MALICIOUS_REDIRECTOR_LINK
    PDF contains a clickable URI to redirector infrastructure used by a known malicious PDF SEO/adware delivery campaign. These documents typically rely on user interaction and redirect chains rather than a PDF parser vulnerability.
  • 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.
  • 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://crophysi.ru/award?keyword=can+i+use+my+chick+fil+a+rewards+on+doordash In PDF document text
    • https://cdn-cms.f-static.net/uploads/4373992/normal_603760d86a877.pdfIn PDF document text
    • http://porn77.design/682642955661sh8v.pdfIn PDF document text
    • http://frasqen.online/77288622835tflv9.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4375088/normal_5ffbb52ec34eb.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4368964/normal_602983042544e.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4369518/normal_600746a62d7f7.pdfIn PDF document text
    • http://siteznakomstv69.space/abu_garcia_black_max_baitcast_rod_and_reel_combo7k1bp.pdfIn PDF document text
    • http://atlas-copco.su/gulogazadolovorebijulfibbt.pdfIn PDF document text
    • http://wirelessinfo.ru/43164368229e3kgi.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4473638/normal_5ffd7dd8e20bb.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4449405/normal_60020c744db95.pdfIn PDF document text
    • http://itawomen.fun/martyrs_full_movie_2016_freelibig.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4421333/normal_5ffa162736c10.pdfIn PDF document text
    • http://gamukanemafutu.mywebcommunity.org/wivatovu.pdfIn PDF document text
    • http://maska-respirator.shop/website_templates_simple_html94fyn.pdfIn PDF document text
    • http://barbanapoli.moscow/63728478304l78c8.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/midizaxopazeji/federal_public_service_commission_challan_form_2018.pdfIn PDF document text
    • http://pezamax.myartsonline.com/dalatebabina.pdfIn PDF document text
    • https://s3.amazonaws.com/kujesulad/9232307782.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_off0000dadb.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xDADB 5424 bytes
SHA-256: 5515f9b1b22f01deae5a0df9c8281b3d3f50dd07a299dd2b67f0e609b53e8b69
font_01_sfnt_off0000ed3a.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xED3A 10380 bytes
SHA-256: c60cb4c95da7680f49dd000d241b39b8841406ad6bc82000eed29b13d065a5eb

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