Malicious PDF — malware analysis report

Static analysis result for SHA-256 d3e16e7f5366d30e…

MALICIOUS

PDF

91.2 KB Created: 2020-11-30 08:04:27 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-06-21
MD5: ed5163888eaea029eadc26d8b806e1c4 SHA-1: c15518c38953d823f2dbfffec9b77013341506d2 SHA-256: d3e16e7f5366d30e88d71d5781e157f59ef0a604111ac5f68005ffb326260833
254 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9998

Heuristics 6

  • ClamAV: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0
  • 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://cctraff.ru/wb?keyword=baby%20sleeping%20bag%20tog%20guide%20uk In PDF document text
    • https://kusuvafivubiret.weebly.com/uploads/1/3/4/8/134888197/8514359.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4416661/normal_5f9922740c528.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4415300/normal_5f98bb0f2fc03.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4384307/normal_5fbba8af6e194.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4479705/normal_5fc35e6516af2.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4369663/normal_5fb4363889a8a.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4427499/normal_5fa8c3a17b089.pdfIn PDF document text
    • https://xisubuto.weebly.com/uploads/1/3/1/3/131380177/dawasexurijoxe.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/zewimu/anatomy_of_a_deer_leg.pdfIn PDF document text
    • https://s3.amazonaws.com/putelekireza/bokiwumuvegulal.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/051d808b-a1b2-4f85-84e2-1b5dd7b25cf9/suwibisaje.pdfIn PDF document text
    • https://s3.amazonaws.com/zikeko/lumitaw.pdfIn PDF document text
    • https://s3.amazonaws.com/lanubili/9178088979.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/26c63671-a3bf-4690-8b49-d69ceca4a775/45830525351.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_off0001273c.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x1273C 5384 bytes
SHA-256: adbf85c009f0ed4d2aabc938d84764fd06835d517e24926069984484fa2e9dc9
font_01_sfnt_off000139a5.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x139A5 11376 bytes
SHA-256: dbe2caeee3bf544373d9a216772f068406ad1296aedc866cdb15be67de4da40a

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