Malicious PDF — malware analysis report

Static analysis result for SHA-256 0d31cf5f9fcf9ede…

MALICIOUS

PDF

81.7 KB Created: 2022-05-04 17:39:53 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2026-06-14
MD5: d0f7fc176ab4dd86a50b5434d7e8152f SHA-1: 2d8458517a46ce69d2d08072f88583e195a0aa9c SHA-256: 0d31cf5f9fcf9ede34ef5500b2a7d5be40ce38c9a94062e1fbbfd8fd1de29d75
156 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9995

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 link farm points to compromised-WordPress upload storage medium PDF_COMPROMISED_CMS_UPLOAD_LINK_FARM
    PDF contains multiple clickable links, across many distinct hosts, whose targets are random-slug files parked in the upload directories of vulnerable WordPress form plugins (FormCraft, Super Forms). This is the hallmark of the 'free document/template' SEO phishing PDF family, which ranks for search queries and routes users into payload/redirect chains hosted on compromised sites. The PDF itself carries no exploit — the risk is the linked destinations.
  • 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://fecuq.co.za/YmrXLWy8?keyword=cara%20vlookup%20di%20excel%20beda%20sheet%20format%20dari%20excel%201 PDF link annotation
    • https://finestblogger.de/wp-content/plugins/super-forms/uploads/php/files/5c8odf2rf4cn25gh1qcsscam6v/ninuji.pdfIn PDF document text
    • https://harpethvalleypto.org/wp-content/plugins/super-forms/uploads/php/files/39ee37249627df6ebb8754135b55c60b/39146191246.pdfIn PDF document text
    • https://varida-tech.com/ckfinder/userfiles/files/4959735477.pdfIn PDF document text
    • https://nazragame.com/calisma2/files/uploads/2990439032.pdfIn PDF document text
    • https://tktravelkorea.com/FileData/ckfinder/files/20220228_00AC9B67E38079B9.pdfIn PDF document text
    • https://www.rioclaro.com.co/kcfinder/upload/files/49280704495.pdfIn PDF document text
    • https://bold-iot.com/uploads/files/202204292345051534.pdfIn PDF document text
    • http://modero.vn/upload/files/zavudunasamoxo.pdfIn PDF document text
    • http://stelmart.ru/userfiles/file/lagusogilutumimuwa.pdfIn PDF document text
    • https://matkinhantai.com/luutru/files/kurinisodororere.pdfIn PDF document text
    • http://avvocatoandreabruschi.it/userfiles/files/89969387725.pdfIn PDF document text
    • https://stradatextiles.com/upload/ckfinder/files/71799680787.pdfIn PDF document text
    • https://namhunglogistic.vn/site/files/pazevevumunadilebanuta.pdfIn PDF document text
    • http://shmgec.com/Uploadfiles/files/vutogunomukadifi.pdfIn PDF document text
    • https://clove7.com/userfiles/file/nibifefeze.pdfIn PDF document text
    • http://exekuce-majetku.cz/kcfinder/upload/files/17267462169.pdfIn PDF document text
    • http://www.barankayalar.com.tr/wp-content/plugins/formcraft/file-upload/server/content/files/161f99f36105a4---32836146645.pdfIn PDF document text
    • https://noelex22.org/userfiles/file/67938468078.pdfIn PDF document text
    • http://reclaimsplus.com/wp-content/plugins/super-forms/uploads/php/files/7c68e4e4390d7c57c426c42e8bf4f957/74853360606.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_off0000d8cd.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xD8CD 16792 bytes
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1
font_01_sfnt_off0000f0df.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF0DF 16952 bytes
SHA-256: 81f84dcd05de06613a9595ac5e0df964f925a39fedd96bedbfc8fd2aa78988f3
font_02_sfnt_off00011d49.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x11D49 11364 bytes
SHA-256: f0048d3bf18ee38d69bfbae417d077e5879cefcc72d3b17d6a82a0c923fc7621

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