Malicious PDF — malware analysis report

Static analysis result for SHA-256 3039414eeac17528…

MALICIOUS

PDF

95.7 KB Created: 2020-11-12 14:47:44 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-01-23
MD5: c5d0aeb1cd045cac533de1bdce00d5f0 SHA-1: 1bc6068fa7792ae94da903b550933c38f3a2f81e SHA-256: 3039414eeac17528a5e3953db0a12d5e17b813fa63c0b9435d7a2408668a0e8f
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://traffset.ru/123?utm_term=decision+making+in+finance+future+value+of+an+investment+sheet+5+answer+key PDF link annotation
    • https://cdn-cms.f-static.net/uploads/4475564/normal_5fa6000f4fbe8.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4389376/normal_5f9eeee662ea8.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4418013/normal_5f9b52979d70e.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/xumakomowi/10330702341.pdfIn PDF document text
    • https://s3.amazonaws.com/simujix/sipepumivot.pdfIn PDF document text
    • https://s3.amazonaws.com/wonoti/genetic_disorders_articles.pdfIn PDF document text
    • https://s3.amazonaws.com/temujonuwu/78793057381.pdfIn PDF document text
    • https://s3.amazonaws.com/moduxanakuri/kidotejegojajiboja.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/6c2eb8d6-f4ea-4348-ab30-5660eac1317b/88280395439.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/b3b7a7ce-54e7-40a8-89ff-900e49bb9eb7/bose_wave_awrc_1g_manual.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/c7ef1d33-8ea4-44b7-99a7-815c0fcdc68e/jogon.pdfIn PDF document text
    • https://s3.amazonaws.com/paxivogedewilu/17086169877.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/765294b1-83c3-4863-92a7-d9d136b13288/super_paper_mario_chapter_5-1_block_code.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/15d6872c-17c6-4b14-8cce-a3d48d16cc92/dusomibolifatapajin.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_off00013659.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x13659 5736 bytes
SHA-256: 05890cef83603fdf28efbe95ec90adffc588bb01b0e28c10c2b8ed62c22a84de
font_01_sfnt_off000149db.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x149DB 11736 bytes
SHA-256: 4adada0aa2b237b09e0b0eafe8d0926fe02d1bda4d071d75fc36e2b72e96312d