Malicious PDF — malware analysis report

Static analysis result for SHA-256 0d3723b0736d7dd7…

MALICIOUS

PDF

104.3 KB Created: 2020-10-19 08:15:23 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-06-14
MD5: 7be6a908461ca8bb4aa5d8b47740fa09 SHA-1: e8f107cb55cbb7785b505d3d8a39433b8ded7655 SHA-256: 0d3723b0736d7dd79a65c058b71aecd3d50a93f1a7f3a855f36f35a9bf7a028b
194 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 1.0000

Heuristics 5

  • 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://ttraff.com/123?keyword=nota+komsas+tingkatan+5+pdf In PDF document text
    • https://cdn-cms.f-static.net/uploads/4370062/normal_5f88b051768ed.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4366313/normal_5f8722689131a.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4368475/normal_5f888840f4120.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4365652/normal_5f872089cacdc.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4383680/normal_5f8cc650491db.pdfIn PDF document text
    • https://vebifejelib.weebly.com/uploads/1/3/0/7/130775119/piwikatufal.pdfIn PDF document text
    • https://jurizimobijagi.weebly.com/uploads/1/3/0/8/130874317/japunosolefivow.pdfIn PDF document text
    • https://nanorobudilason.weebly.com/uploads/1/3/0/7/130775181/b98b3.pdfIn PDF document text
    • https://vuxozajuje.weebly.com/uploads/1/3/1/3/131379873/7d7b6617ab8.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/5045f4ae-9dd1-4056-b93e-3c2b4416b84e/2223588840.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/398f9091-af60-433b-9c37-5fdf7c5fa961/jezupane.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/c530d0d6-2332-46a6-bd48-38acd27c7f5e/34267342474.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0440/1332/2398/files/50_shades_of_grey_contract.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0503/0743/2631/files/11th_biology_question_paper_2020.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0483/9191/3632/files/logo_quiz_slogans_level_10_answers.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0481/4353/2185/files/18327472493.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0467/9778/3191/files/73944399253.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/9405/6861/files/86825422638.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0440/7135/4533/files/telorebiwowefetavudafev.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_off000150e7.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x150E7 5060 bytes
SHA-256: 723bb539f6d681ab005b46ff1e36960aac600c072d793a41de85a4be7f5ed4e8
font_01_sfnt_off00016213.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x16213 10492 bytes
SHA-256: 500901160dd5358bd1516f8c4fe167c79afbcaaee81cb5fe5b751dbda7c15225
font_02_sfnt_off000185a2.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x185A2 4324 bytes
SHA-256: a542ec26cea93e049a2e27cd59b1347dd9bbdea13775fd7b822b3c2b3136116f

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