Malicious PDF — malware analysis report

Static analysis result for SHA-256 20384fceb5708d6b…

MALICIOUS

PDF

78.5 KB Created: 2021-02-24 18:48:54 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-04
MD5: f44775bb05c25fa6520dc2b0eb10d6cc SHA-1: 57d841b6da64f8360be204949e3bd30cd093ae9e SHA-256: 20384fceb5708d6bd4dfd066ccd04ca2403fa88daf5b16298475df7f71445346
194 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9998

Heuristics 5

  • ClamAV: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0
  • 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/wb?keyword=lifetime%20vs%20la%20fitness In PDF document text
    • https://cdn-cms.f-static.net/uploads/4465274/normal_5fe76ec508411.pdfIn PDF document text
    • https://biwasigefo.weebly.com/uploads/1/3/1/3/131398444/nonuxoweso.pdfIn PDF document text
    • https://bafiredevidif.weebly.com/uploads/1/3/1/3/131384403/tizemel.pdfIn PDF document text
    • http://eurosett.net/angular_set_form_value_from_controller0moyp.pdfIn PDF document text
    • http://exampl1214.com/mr_coffee_electric_kettlegjqc2.pdfIn PDF document text
    • https://menuzuxa.weebly.com/uploads/1/3/1/0/131070619/ca4422e9d7.pdfIn PDF document text
    • https://cdn.sqhk.co/likunubiba/hOkuijM/mipevosazepiginojanamokig.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4486061/normal_602d3e186962d.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4460477/normal_5ff00f17e1377.pdfIn PDF document text
    • https://cdn.sqhk.co/mibemofega/geRXGhd/jurassic_run_attack_dinosaur_era_fighting_games.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4490116/normal_601e168e586aa.pdfIn PDF document text
    • http://kamikofonem.mygamesonline.org/honda_mower_hrr2168vka_parts.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/pusolefosex/daily_planner_template_for_onenote.pdfIn PDF document text
    • https://s3.amazonaws.com/kefodek/free_psd_business_card_templates_with_bleed.pdfIn PDF document text
    • https://s3.amazonaws.com/jawusawar/47979256492.pdfIn PDF document text
    • https://s3.amazonaws.com/towakog/what_celebrities_are_5_percenters.pdfIn PDF document text
    • https://s3.amazonaws.com/liluvad/19326485458.pdfIn PDF document text
    • http://pabewuvuxaf.onlinewebshop.net/xoranupudezodelupaliliwas.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_off0000f924.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF924 4820 bytes
SHA-256: 47a1432558a1a7ca39cee0a8e5d5a134d33eae18b958530321f5f8bb6ba2d6ee
font_01_sfnt_off00010985.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x10985 10476 bytes
SHA-256: 4a458a1261991855d2fde1492b63aa8d2612d13b14cfdfcafdae6ccb7f65ad9e

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