Malicious PDF — malware analysis report

Static analysis result for SHA-256 e3315e254d8b51a9…

MALICIOUS

PDF

72.2 KB Created: 2021-02-07 01:42:32 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-04-25
MD5: 7fa5f55c72c42575da89427d6993616a SHA-1: 52ae9be2f62701a3c48a41607a6a5d7520fe1357 SHA-256: e3315e254d8b51a92bde755deb62acd53925713f850a9d1e97ca47ac076a1752
136 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9997

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://seumenha.ru/wb?keyword=swirly%20script%20fonts%20free PDF link annotation
    • https://cdn.sqhk.co/mezadisedud/iigjcb3/754541573.pdfIn PDF document text
    • http://meine-gebuhrenfrei.com/lolijeriwonufufupc8tt.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4465255/normal_600171e118ee6.pdfIn PDF document text
    • http://abanca-electronica.com/that_time_i_got_reincarnated_as_a_slime_fanfictiongqy8o.pdfIn PDF document text
    • https://cdn.sqhk.co/pawapoma/jheMUhi/hask_hollywood_picture_quiz.pdfIn PDF document text
    • https://cdn.sqhk.co/vemudumuxixu/hbkihgj/73266773485.pdfIn PDF document text
    • https://cdn.sqhk.co/jotenitix/V5ib4gc/3516633256.pdfIn PDF document text
    • http://form-lnstagramcopyrightservice.com/enlightenment_thinkers_and_society_worksheetysqz9.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4402520/normal_5fc7b5e07d2e8.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4501634/normal_60059427ee32f.pdfIn PDF document text
    • https://cdn.sqhk.co/gepeduvo/ZQRghhV/74592507706.pdfIn PDF document text
    • https://cdn.sqhk.co/fipufose/4jhifji/dream_girlfriend_is_pregnant.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/garorowa/sewawitodakefux.pdfIn PDF document text
    • https://s3.amazonaws.com/jivagajamav/blanket_po_in_sap_mm.pdfIn PDF document text
    • https://s3.amazonaws.com/dazinibonofobi/neet_2019_answer_key_by_resonance_institute.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_off0000dc30.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xDC30 5096 bytes
SHA-256: fd39adf8bc2dd3b2185f1f7f1e729e7dd10ec71475ad6f81db684fc89e21e900
font_01_sfnt_off0000edb4.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xEDB4 11648 bytes
SHA-256: 6499290a60a829757ff6faa65bb1747cf076e856fed5341e531aa98744cffdba