Malicious PDF — malware analysis report

Static analysis result for SHA-256 782ef2aa28442b52…

MALICIOUS

PDF

87.9 KB Created: 2020-11-29 11:52:15 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-06-16
MD5: 5c60b914c14c955c2fc602429a0eca21 SHA-1: 6bef99ce9565627600691773cd28e077e54eca89 SHA-256: 782ef2aa28442b52007a5a3cf064a60760f32baf7637e576df81172645ad9458
194 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
  • 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://cctraff.ru/123?utm_term=short+queen+rv+mattress+8+inch In PDF document text
    • https://cdn-cms.f-static.net/uploads/4384323/normal_5f96b9df2f53d.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/legolikagamop/3217020327.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/147c173e-c63f-44a6-806d-15f6731e8905/translating_algebraic_expressions_worksheet_math_drills.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/df8b9337-daaa-4c4f-9dbf-314f034e3d1a/jekaxizuwowukidap.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/8560350e-dcc2-4d6c-8c18-74a740bd0fdf/sirazabakosotole.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/c602cb8a-203e-4868-bce0-e29f0d7820cf/ejercicios_de_lectoescritura_para_pr.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/a87a8aef-0cd4-4447-9c35-60fadc6790b9/67384553189.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/4be64ec5-c328-483f-a524-f6aea056a388/66585146999.pdfIn PDF document text
    • https://s3.amazonaws.com/lotibabakuj/mahabharata_story_in_english_free.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/b13fc5a6-d376-4832-8946-140c95a44c24/80970706018.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/69ac7e2b-f43e-404f-bb73-15da1d35a5b4/ravexewerugorowakarewe.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/74178b6d-6c5a-4b20-bef6-6c06abb32645/woparomoxavalisaperobo.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/10c26c5c-bd03-404a-ac57-0f99b98e4fcc/69573244316.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_off00011af0.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x11AF0 5488 bytes
SHA-256: d6c25acee5951e326e6207dafb42ecbda06ca2eedb616ad6453d79064a4717b5
font_01_sfnt_off00012d76.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x12D76 10960 bytes
SHA-256: 4ff5508dbf5240806766267602decd2f88425caa8daf272bf6947c9534a4fda2

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