Malicious PDF — malware analysis report

Static analysis result for SHA-256 cd730fcea89ce791…

MALICIOUS

PDF

76.0 KB Created: 2020-11-23 05:51:50 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-06-18
MD5: 003defc5904478c6d0a1b08c93d00297 SHA-1: 06dbddc454c79991039fcf4d60a5ffab380f2ee4 SHA-256: cd730fcea89ce791c8300631f0b906ccdee01ba6bec17947c74ebd96cd9ec295
136 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9997

Heuristics 5

  • ClamAV: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0
  • 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://traffnew.ru/wb?keyword=c%20programming%20language%20interview%20questions%20and%20answers PDF link annotation
    • https://gadigode.weebly.com/uploads/1/3/2/6/132680949/lidol-powirivisazibe-parotik-rasivupa.pdfIn PDF document text
    • https://wanuwoziburake.weebly.com/uploads/1/3/4/4/134458428/xitefajobejumukivape.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4387565/normal_5f971d7abc698.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4480745/normal_5fa6706e524e6.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4427811/normal_5fb02f5074fe1.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4374203/normal_5f8f70cf70009.pdfIn PDF document text
    • https://mizunilido.weebly.com/uploads/1/3/4/3/134352057/4f1f8374f.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://www.daltonmaag.com/In PDF document text
    • https://uploads.strikinglycdn.com/files/a85de129-aeda-49ab-a3d7-041a6cdb66b4/wepojabadigitabugem.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/b0172bd8-d82e-4ffa-9426-5a2e58f7e83e/95399464814.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/e86d23ba-c52e-4386-8635-2eed0c1b49bf/30580598889.pdfIn PDF document text
    • https://s3.amazonaws.com/pugomonapoxuxe/tixarok.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/3485bd31-9d3e-47b7-b450-4dbd02ed3017/87133098306.pdfIn PDF document text
    • https://s3.amazonaws.com/votuweroxigezog/riwawapizepadipox.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 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000de3a.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xDE3A 5464 bytes
SHA-256: 9197f942235b732b0f8605bbece7f4cfddad82627ac378afa6c803421b4624d6
font_01_sfnt_off0000f0c1.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF0C1 10604 bytes
SHA-256: c2896b7597482687aa2b72bf814cab54fbd82188e34be7d2eaf0030080cc7bb3
font_02_sfnt_off000114b4.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x114B4 4324 bytes
SHA-256: 9f355172d696dda274cac500966718f112ce76951f19577ac4888987ea6471b2

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