Malicious PDF — malware analysis report

Static analysis result for SHA-256 cd7c0138e6dbaf0f…

MALICIOUS

PDF

80.6 KB Created: 2022-04-03 10:42:47 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2026-06-19
MD5: 731a2cc1e34efaad5a740ec3d5e68927 SHA-1: 8f4a10f2d9cb62d62db0a647673a687a074e8a20 SHA-256: cd7c0138e6dbaf0fabed2d0d7f71794a99afd1e14f71a8aa0847db197b24611f
186 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9991

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
  • 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.
  • Small PDF is a non-clustered link farm on disposable hosting medium PDF_SEO_DISPOSABLE_LINK_FARM
    Small PDF contains many clickable external PDF links spread thin across many distinct hosts (no single dominant host), corroborated by a utm_term SEO-redirector link and/or links parked on free/disposable content hosts. This is the 'free document/template' SEO phishing PDF family, which ranks for search queries and routes users into payload/redirect chains, rather than a normal document citation pattern. The PDF itself carries no exploit — the risk is the linked destinations.
  • 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://podar.co.za/YmrXLWy8?keyword=howard%20gardner%20multiple%20intelligences%20pdf PDF link annotation
    • http://omorits.jp/uploads/files/zetovexiv.pdfIn PDF document text
    • http://www.imcet.org.tr/kcfinder/upload/files/pawel.pdfIn PDF document text
    • https://pacantioquia.org/aym_image/files/31688229056.pdfIn PDF document text
    • https://lowarimubabop.weebly.com/uploads/1/3/4/7/134712264/dab987c.pdfIn PDF document text
    • https://divinehm.com/ckeditor/kcfinder/upload/files/49949987692.pdfIn PDF document text
    • https://xevefozivoro.weebly.com/uploads/1/3/5/3/135339272/vefalanuxazad.pdfIn PDF document text
    • https://jakazopafekitab.weebly.com/uploads/1/3/4/6/134632018/7834262.pdfIn PDF document text
    • http://dichvumucin.com/upload/ckupload/files/14592335563.pdfIn PDF document text
    • https://fufopijubotuxo.weebly.com/uploads/1/3/1/3/131381544/zomuxaju.pdfIn PDF document text
    • http://chengzechem.com/upload/files/robimugarefedituzevuxogip.pdfIn PDF document text
    • http://bakefruit.com/uploads/files/202202170314568958.pdfIn PDF document text
    • http://folhacer.com/cliente/conteudos/files/74893855351.pdfIn PDF document text
    • https://buzegiregusa.weebly.com/uploads/1/3/6/0/136082094/bolum.pdfIn PDF document text
    • http://woykoff.hu/upload/file/18284105399.pdfIn PDF document text
    • https://nojenekaxaxi.weebly.com/uploads/1/3/4/0/134017841/1100287.pdfIn PDF document text
    • https://vefawotujetebab.weebly.com/uploads/1/3/4/6/134651081/4409247.pdfIn PDF document text
    • https://rujapunilibufig.weebly.com/uploads/1/3/4/7/134713438/dofudaduwitukafusud.pdfIn PDF document text
    • http://tubesealer.com/uploaded/file/3667302846216892ea5fd3.pdfIn PDF document text
    • https://putujagojosid.weebly.com/uploads/1/3/0/7/130738675/9145488.pdfIn PDF document text
    • https://ruwawakutiro.weebly.com/uploads/1/3/0/8/130874672/kuwadopopobu_sinif_faziwip_bukelegen.pdfIn PDF document text
    • https://lunixomowomok.weebly.com/uploads/1/3/4/8/134859132/8307010.pdfIn PDF document text
    • http://nfc-lampang.com/user_img/files/13346564216.pdfIn PDF document text
    • http://cppzone.ru/users/blogs/file/90650172686.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://dejavu.sourceforge.netIn PDF document text
    • http://dejavu.sourceforge.net/wiki/index.php/LicenseIn PDF document text

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000d514.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xD514 17284 bytes
SHA-256: 628651683b17d1aa38246054f1a117b537f25528d14fb47fd825a7bfdb384a53
font_01_sfnt_off0001025e.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x1025E 11140 bytes
SHA-256: 9e98ff1dbdd0ec62abbc867fa03f1baacd512399309ac059cb444e360c7a94fd
font_02_sfnt_off00011c2f.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x11C2F 16792 bytes
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1

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