Malicious PDF — malware analysis report

Static analysis result for SHA-256 f2f15adc9a111ff4…

MALICIOUS

PDF

69.2 KB Created: 2021-01-24 12:01:23 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-04-10
MD5: f851fe15e3072735fc3a4086697f7fa0 SHA-1: c6df5161676b2b060663a4d4097079b198b3eb88 SHA-256: f2f15adc9a111ff407af6ad713176dd99d95960fa4784f15c10afff1b78cc97b
136 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
  • 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/123?utm_term=spiderman+homecoming+online+free PDF link annotation
    • https://static.s123-cdn-static.com/uploads/4475872/normal_5feec599b238c.pdfIn PDF document text
    • http://dayzcommunity.info/best_xbox_360_headphones6rqfw.pdfIn PDF document text
    • http://netlysy.online/79872532076w03ly.pdfIn PDF document text
    • http://yoptan.space/real_moto_rider_racing_hack_apkkyb9o.pdfIn PDF document text
    • https://cdn.sqhk.co/fekesolip/Njahfjj/emergency_ambulance_sound_download.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4458837/normal_5fdf0df33f53e.pdfIn PDF document text
    • http://gemotebefid.22web.org/ios_auto_clicker_app.pdfIn PDF document text
    • https://cdn.sqhk.co/savimatuv/rhcihje/zetiledaxiwewu.pdfIn PDF document text
    • https://cdn.sqhk.co/pesuxitum/2qVaOEm/line_paint_level_138_walkthrough.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4449183/normal_5ffe9cd0689d7.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4379846/normal_5fe38bd5d5225.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4405197/normal_6002ae28abc2e.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4498868/normal_5fe6790a110b4.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://leporib.epizy.com/best_rooting_app_for_android_5._1.pdfIn PDF document text
    • http://jiporiri.rf.gd/cdac_exam_form_last_date_2019.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_off0000cc80.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xCC80 5496 bytes
SHA-256: ab272ee57879aba3bd2208b39b55871940f59e456bd206b838f639a05ddd04d0
font_01_sfnt_off0000df07.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xDF07 12196 bytes
SHA-256: 9a5db87ad4ef3edfbebc9031f6d816ed8871e99e8347e83e4e65ae1f8944cdbf