Malicious PDF — malware analysis report

Static analysis result for SHA-256 78248cfeb5ad0946…

MALICIOUS

PDF

68.6 KB Created: 2020-11-24 03:58:31 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-06-16
MD5: 4f1812958549585cc7c7c1a36b075dfa SHA-1: d2988c1cd2bd45ef3c47172c6ea962422cc5dcc6 SHA-256: 78248cfeb5ad09462317415bf9ee886a0bd1f51099af1771d66e14fa3b3191d5
254 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9998

Heuristics 6

  • 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.
  • Small PDF contains mass external PDF link farm critical PDF_SEO_LINK_FARM
    Small PDF contains many clickable external PDF links, mostly clustered on one host. This matches generated SEO/link-farm PDF carriers used to route users into malicious or unwanted-software delivery chains, rather than a normal document citation pattern.
  • 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/wb?keyword=westworld%20soundtrack%20%20zip In PDF document text
    • https://bawidonawasaz.weebly.com/uploads/1/3/4/3/134354070/2d423d.pdfIn PDF document text
    • https://liwobolavus.weebly.com/uploads/1/3/4/1/134131542/259948.pdfIn PDF document text
    • https://pudibodug.weebly.com/uploads/1/3/4/4/134464821/1956674.pdfIn 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/1607fbdc-98c6-4939-8007-4613b79df177/10919204048.pdfIn PDF document text
    • https://s3.amazonaws.com/mozirolinitaje/shining_force_2_items_guide.pdfIn PDF document text
    • https://s3.amazonaws.com/badodemebo/wupufudexobuvofo.pdfIn PDF document text
    • https://s3.amazonaws.com/tipakalif/20291970490.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/e8944f17-015e-4f1e-9d3d-18f3d001166c/sikijiw.pdfIn PDF document text
    • https://s3.amazonaws.com/bezutu/catchphrase_answers_episode_8.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/dbdacbe8-9b30-4a03-933e-7ada34b9b003/head_first_ejb_3.0.pdfIn PDF document text
    • https://s3.amazonaws.com/defipedibe/21484281325.pdfIn PDF document text
    • https://s3.amazonaws.com/bisute/kuwajovezawupukofiwusidod.pdfIn PDF document text
    • https://s3.amazonaws.com/felasorarabipis/english_book_9th_class_punjab_textbook_board_2017.pdfIn PDF document text
    • https://s3.amazonaws.com/sojebelevenex/danielson_framework_rubric_2013.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_off0000cac1.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xCAC1 5288 bytes
SHA-256: 14d87edfccbf4d7d4bb10bbf5577a723bea7908456b9648931fdcd19757037a8
font_01_sfnt_off0000dcea.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xDCEA 12112 bytes
SHA-256: be96696b13175d66a4718e21468f274c4d6e025af590bbf4d3a7072ba933d44b

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