Malicious PDF — malware analysis report

Static analysis result for SHA-256 ee920f304b8d74cc…

MALICIOUS

PDF

74.3 KB Created: 2021-01-04 10:01:55 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-02-23
MD5: 4f35a94810258cda649ddb2d89b38f2f SHA-1: 88f40fdb6e04a334a352f29be6922641c192b832 SHA-256: ee920f304b8d74ccfcd878459fcafe70b3f1f592ca6bee69b6cce79a0d50af06
194 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9999

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://ggtraff.ru/shook?utm_term=%25D1%2581%25D0%25BA%25D0%25B0%25D1%2587%25D0%25B0%25D1%2582%25D1%258C+%25D0%25B2%25D0%25B7%25D0%25BB%25D0%25BE%25D0%25BC%25D0%25B0%25D0%25BD%25D0%25BD%25D1%258B%25D0%25B9+extreme+car+driving+simulator+%25D0%25B2%25D1%2581%25D0%25B5+%25D0%25BE%25D1%2582%25D0%25BA%25D1%2580%25D1%258B%25D1%2582%25D0%25BE In PDF document text
    • https://cdn-cms.f-static.net/uploads/4383561/normal_5fe9b0a30929d.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4375352/normal_5fc9838f94177.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4371497/normal_5f93a0a48781b.pdfIn PDF document text
    • https://cdn.sqhk.co/bufutoje/tBjhjfT/pencilmation_season_16.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4374545/normal_5fea30464b042.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4368985/normal_5f8828e1664e8.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4385647/normal_5fa9a8f331391.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4421944/normal_5fd2fb446c311.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4446776/normal_5f9f5c297de9f.pdfIn PDF document text
    • https://ggtraff.ru/shook?utm_term=%25D1%2581%25D0%25BA%25D0%25B0%25D1%2587%25D0%25B0%25D1%2582%25D1%258C+%25D0%25B2%25D0%25B7%25D0%25BB%25D0%25BE%25D0%25BC%25D0%25B0%25D0%25BD%25D0%25BD%25D1%258B%25D0%25B9+extreme+car+driving+simulator+%25D0%25B2%25D1%2581%25D0%25B5+%25D0%25BE%25D1%2582%25D0%25BA%25In PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • https://uploads.strikinglycdn.com/files/4801073b-f494-4283-bc87-abdadf765756/my_talking_ginger_2_apk_download.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/a92a2204-63db-4dbb-aa57-c5149a97eb8f/bipovemojidazedi.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/1cd06d15-26a1-41e0-85de-0cc52d6e320b/40029100092.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/c3f1108d-5a33-4970-b2c2-9fb0f130d1f2/uraplex_20_mg.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/bd38f591-7970-46ed-82b1-b63cf486ec7c/el_reino_del_dragon_de_oro_personajes.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/c336c3f1-579f-4c6d-8d0c-9e09d881b17e/think_win_win_games.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_off0000d516.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xD516 7176 bytes
SHA-256: 54101f4fe8329b996cc87858ad395ebbba5c042fe94b984c60c2f9e893395579
font_01_sfnt_off0000eb75.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xEB75 14660 bytes
SHA-256: 17aec06e6e35e1f69b4fce69dc98b7b5e75240afe73907998638fbb6e23e8b68

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