Malicious PDF — malware analysis report

Static analysis result for SHA-256 e20e069c486e057e…

MALICIOUS

PDF

68.9 KB Created: 2021-02-09 07:23:27 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-04-10
MD5: 7944f762b477d8ba4424145d1a80fcd7 SHA-1: ae74b5ecfe20e71ae91efaa50d84f5e0863158fb SHA-256: e20e069c486e057e443927bf4984f2aa923b0d436c50beebefd4e92234ca91b4
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://leonvi.ru/123?utm_term=motorcycle+seat+foam+block PDF link annotation
    • https://cdn.sqhk.co/sexifirume/jbQhjQs/nyan_cat_the_space_journey.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4404740/normal_5fd3692d86b9b.pdfIn PDF document text
    • http://drilltech.info/24846561389rhd60.pdfIn PDF document text
    • https://cdn.sqhk.co/jasurisunav/cdFIifX/55839057967.pdfIn PDF document text
    • http://kittyplay.online/kuwimubuwarekuduwetosdvvd8.pdfIn PDF document text
    • https://cdn.sqhk.co/dovoxukeni/c7hjhjR/66948011129.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4462056/normal_6001b831d1533.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/kovozenamofox/rubarorovovepisopexupox.pdfIn PDF document text
    • https://s3.amazonaws.com/kofabube/36675507845.pdfIn PDF document text
    • http://zorufuzelal.rf.gd/information_about_msc_computer_science.pdfIn PDF document text
    • http://bomapogixojepo.epizy.com/game_desert_battleground_offline_mod_apk.pdfIn PDF document text
    • https://s3.amazonaws.com/zamuriza/calendars_5_app_android.pdfIn PDF document text
    • https://s3.amazonaws.com/fekazudabo/information_technology_associate_manager_p_g.pdfIn PDF document text
    • https://s3.amazonaws.com/fixararololu/application_format_for_permission.pdfIn PDF document text
    • https://s3.amazonaws.com/fidobakipivogit/mi_store_app_latest_version.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_off0000cfbf.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xCFBF 5340 bytes
SHA-256: d642c547eb8dbedcfc7506a49b89c1e6ad5ff1374b5a398484345619486d53e1
font_01_sfnt_off0000e1ea.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE1EA 10356 bytes
SHA-256: f4947ca9132997f8656f6a8365b639f560792f03fc720f9a59074094e8f00d37