Malicious PDF — malware analysis report

Static analysis result for SHA-256 d3eeb13b0b347e35…

MALICIOUS

PDF

82.1 KB Created: 2021-09-03 01:52:14 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2026-06-21
MD5: 28b5ceb40efc51621249291438957abf SHA-1: 995b8b3f4d207f78bf8ccaac90863085a238722e SHA-256: d3eeb13b0b347e35988d620b1dbbbecaa4689b79be7367d5794b5ef185b963b5
156 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9974

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 http://taeguektour.com/FileData/ckfinder/files/20210820_44D1D049D4A7BA73.pdf In PDF document text
    • http://3duct.com/wp-content/plugins/formcraft/file-upload/server/content/files/1607e419bd2273---govexirodesozaxa.pdfIn PDF document text
    • http://palaciodelosnavas.com/userfiles/file/34951999367.pdfIn PDF document text
    • https://pinpointfeedtech.com/ckfinder/userfiles/files/nawobutufo.pdfIn PDF document text
    • http://www.scea.edu.mn/ckfinder/userfiles/files/7012499611.pdfIn PDF document text
    • http://www.videobezopasnost.ru/ckfinder/userfiles/files/gakitogekaserorivopake.pdfIn PDF document text
    • https://www.amiunaorchestra.ro/wp-content/plugins/formcraft/file-upload/server/content/files/160c3e95d3279f---xokumemifimonexewemutiz.pdfIn PDF document text
    • http://masonhn.com/d/files/43269596832.pdfIn PDF document text
    • http://camel-republic.com/media/userfiles/files/87885291054.pdfIn PDF document text
    • http://www.fliesen-brill.de/wp-content/plugins/formcraft/file-upload/server/content/files/160881776ac02e---xotulivosiguguzowik.pdfIn PDF document text
    • http://www.cenlajobinator.com/siteuploads/editorimg/file/63778399729.pdfIn PDF document text
    • http://ahdongjiu.com/upload_fck/file/2021-5-7/20210507025638784264.pdfIn PDF document text
    • https://noddy.nu/images/file/damolikikus.pdfIn PDF document text
    • http://theheavent.com/userfiles/files/wojizewutipagekidalemodar.pdfIn PDF document text
    • https://atx-stroy.ru/wp-content/plugins/super-forms/uploads/php/files/7f278e1f7d8773cfa4af27bfd209d848/73622208505.pdfIn PDF document text
    • http://astro2sphere.com/admin/images/file/pigipatikuzoninata.pdfIn PDF document text
    • https://globalazeri.az/wp-content/plugins/super-forms/uploads/php/files/u3npdasgk9it4n5rvkcok4g0d1/novazukogipowisejel.pdfIn PDF document text
    • https://engravestone.com/wp-content/plugins/formcraft/file-upload/server/content/files/160e4d67dbcfb2---498768627.pdfIn PDF document text
    • http://paliukenas.lt/i/File/sarufi.pdfIn PDF document text
    • http://casier-a-bouteilles.fr/file/mipaladavitafuw.pdfIn PDF document text
    • http://hodori247.com/uploads/files/desupoxafokogobiva.pdfIn PDF document text
    • http://anatolianlgs.com/userfiles/file/renuvuzibidikejakome.pdfIn PDF document text
    • https://ercrs.org/wp-content/plugins/super-forms/uploads/php/files/iv5gel7pl9h724r5ngg80lmr03/jamejamapatitiwugeza.pdfIn PDF document text
    • https://www.d-table.com/wp-content/plugins/super-forms/uploads/php/files/6494043a2d346cd7a779d9e575dea9a9/mijigevoxakot.pdfIn PDF document text
    • https://hssanesteban.cl/files/joluvisijedi.pdfIn PDF document text
    • https://feedproxy.google.com/~r/skout/mBVl/~3/S30rS-6n6vg/uplcv?utm_term=split+pdf+in+multiple+documentsPDF link annotation
    • 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_off0000dd6d.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xDD6D 17172 bytes
SHA-256: 8749ecf0c2cc35976c09bde640750d296888841b8eab0b954fd9f388827b2b19
font_01_sfnt_off000109f6.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x109F6 16792 bytes
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1
font_02_sfnt_off0001220d.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x1220D 10696 bytes
SHA-256: 3b9f854f4ca9ef69c5c6086bf3b6ab19f64b150d69716bf53048db3c543e42c9