Malicious PDF — malware analysis report

Static analysis result for SHA-256 0d3c31f91a72b6f5…

MALICIOUS

PDF

106.7 KB Created: 2021-10-12 16:09:28 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2026-06-14
MD5: bdaa25c0b513c079cd1534fe12537e08 SHA-1: 074111cb976973d2754b97337392a5f51f0899e0 SHA-256: 0d3c31f91a72b6f5cb3719951aac07a4cb867b6393fbb59e2466f811cc086cbd
156 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9872

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://chinalabware.ru/d/files/xupanaxonedezewevetote.pdf In PDF document text
    • http://kd-council.com/upfile/files/roliwedapezujemarurosan.pdfIn PDF document text
    • http://halvani.com/wp-content/plugins/formcraft/file-upload/server/content/files/1614b57f68fce2---20035284790.pdfIn PDF document text
    • https://mindweave.co.uk/wp-content/plugins/super-forms/uploads/php/files/oc4af8ud7emld79r15qqpccp4i/23307697995.pdfIn PDF document text
    • http://djarkitek.com/temp/vinney/HTML/userfiles/file/notenavititixozix.pdfIn PDF document text
    • https://repetitorebi.ge/userfiles/files/gogozoxuvel.pdfIn PDF document text
    • https://producedepot.us/userfiles/files/kusifegurokumotuvif.pdfIn PDF document text
    • https://consurs.ro/ckfinder/userfiles/files/jonenibapusawovusenekixez.pdfIn PDF document text
    • https://idea-web.ro/app/webroot/files/userfiles/files/41368257325.pdfIn PDF document text
    • https://1sis.com/wp-content/plugins/formcraft/file-upload/server/content/files/1613adeed293db---23445202247.pdfIn PDF document text
    • http://www.tsahimmongol.com/uploads/images/files/semulipuresudozut.pdfIn PDF document text
    • http://dgjst.com/upfile/file/43310837137.pdfIn PDF document text
    • http://rebornfair.com/FileData/ckfinder/files/20210901_C8D993E71B11FEEE.pdfIn PDF document text
    • https://editora-arara-azul.com.br/site/admin/ckfinder/userfiles/files/66428768802.pdfIn PDF document text
    • http://arqing.es/ckfinder/userfiles/files/mabipipebunat.pdfIn PDF document text
    • https://ventadeterrenosagricolas.com/userfiles/file/8286205741.pdfIn PDF document text
    • http://sentezetutmerkezi.com/upload/ckfinder/files/56559383604.pdfIn PDF document text
    • https://endobible.com/userfiles/file/movadepedigiredesanire.pdfIn PDF document text
    • http://terralis.net/catalogue_dynamique/file/pujokerikaritax.pdfIn PDF document text
    • http://xn--90aatbabxd8ae1kf.xn--p1ai/files/74084810119.pdfIn PDF document text
    • https://1sis.com/wp-content/plugins/formcraft/file-upload/server/content/files/16150e1fc12323---zizafaxudevimita.pdfIn PDF document text
    • http://avanti.pl/userfiles/file/68005962806.pdfIn PDF document text
    • http://thewellmanteam.com/userfiles/files/tuleronaxor.pdfIn PDF document text
    • http://madonnina.info/userfiles/files/mafutakepo.pdfIn PDF document text
    • https://www.darrellstuckey.com/wp-content/plugins/formcraft/file-upload/server/content/files/1614607c2b1b60---kusamitizi.pdfIn PDF document text
    • https://bodegoncriollo.com/userfiles/file/37673284395.pdfIn PDF document text
    • http://mrhobbscoffee.com/images/uploads/file/fosixukugub.pdfIn PDF document text
    • http://feedproxy.google.com/~r/MbOu/~3/tgwjJlsMqHc/uplcv?utm_term=1+minute+monologue+for+teenage+girlPDF 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_off00013891.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x13891 10444 bytes
SHA-256: 735262e7695c360b3356e9f8428c078e0936e1d5d607150b39d8935bdff3f096
font_01_sfnt_off00015036.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x15036 20540 bytes
SHA-256: fc9421ad38453512d31e99ef0676900364e613e3b23136760e70d36f4a054b08
font_02_sfnt_off00018447.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x18447 16792 bytes
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1