Malicious PDF — malware analysis report

Static analysis result for SHA-256 510d0b34db63d016…

MALICIOUS

PDF

75.2 KB Created: 2021-03-01 21:37:44 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-04-25
MD5: ef1aba9e6960087af5c078d9e0761c9d SHA-1: 60565ba76c41c4d49f27fe28a75b975fa99c40e7 SHA-256: 510d0b34db63d016a34ad19d06c66d7554c331be9178d0ec2cc32e095592694c
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://yafferge.ru/award?keyword=kenmore+coldspot+refrigerator+repair+manual In PDF document text
    • http://winnerslm.space/mibituxjez5o.pdfIn PDF document text
    • http://fastdonwload.space/nineteen_minutes_movie32z7a.pdfIn PDF document text
    • https://cdn.sqhk.co/ladetozuxi/gdicjaM/77855402016.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4380867/normal_5fd73a3ec0bec.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4501495/normal_60213fb27dab7.pdfIn PDF document text
    • http://ses-paypal.com/john_cena_phone_number9t88j.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4446399/normal_5fd2d436e8cd0.pdfIn PDF document text
    • https://cdn.sqhk.co/fuluzagile/vgihfha/63594102794.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4366369/normal_6016b75128a07.pdfIn PDF document text
    • http://idealicaitaly-ufficiale.site/uncertainty_principle_definition_physicszmooe.pdfIn PDF document text
    • https://cdn.sqhk.co/nebuneduzib/jhXijic/kajiwoto_ai_companion_app.pdfIn PDF document text
    • https://cdn.sqhk.co/jomububorava/iQJgcht/spacebar_counter_free.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/temujonuwu/20543556344.pdfIn PDF document text
    • https://s3.amazonaws.com/jevopemosod/97758024304.pdfIn PDF document text
    • https://s3.amazonaws.com/wizitifowubux/leona_guide_season_9.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_off0000e98c.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE98C 5444 bytes
SHA-256: 413a6b1afcab6c93ffa4374e1c1bf8dcd4cc39f86d99d6860a6deb4dd3a038dd
font_01_sfnt_off0000fbfe.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xFBFE 10464 bytes
SHA-256: d92d86639730169cb7f34bf6a585d147bf3a396cb29ee23495ea8955e3fe63b7