Malicious PDF — malware analysis report

Static analysis result for SHA-256 62420194d9b3ac4a…

MALICIOUS

PDF

75.0 KB Created: 2021-10-09 16:06:49 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2026-05-29
MD5: 71cc4b6fdb5413582585762f322e9dba SHA-1: 42e6d8ca5005ae903092d18ec7612df1867d1e84 SHA-256: 62420194d9b3ac4ae623ab106d06db548afbf84e4880b93ad184b5b1178cdbec
164 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9947

Heuristics 7

  • 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.
  • Embedded JS stream low PDF_JS
    PDF references a /JS stream. Generic JavaScript is common in benign forms; specific dangerous APIs are scored by separate rules.
  • 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://pistant.ru/uplcv?utm_term=extremely+greedy+crossword+clue PDF link annotation
    • http://makaeximworld.com/wp-content/plugins/formcraft/file-upload/server/content/files/1613ea5b78eda5---98082642908.pdfIn PDF document text
    • http://mertcelikkapi.com/userfiles/file/74931627658.pdfIn PDF document text
    • https://sindicav.com.br/ckeditor/ckfinder/userfiles/files/pikorip.pdfIn PDF document text
    • https://jager-ig.tw/up_photo/file/nugikovisalidatu.pdfIn PDF document text
    • https://brazilairporttransfers.com/ckfinder/userfiles/files/60208131773.pdfIn PDF document text
    • https://stayinbranson.com/ckfinder/triplebuserfiles/file/memizebafalibalisu.pdfIn PDF document text
    • http://bakersfield.thepokeluau.com/uploads/files/80884062211.pdfIn PDF document text
    • https://archielectronics.com/userfiles/files/64744966876.pdfIn PDF document text
    • http://clevio.biz/fckUpload/file/32432436890.pdfIn PDF document text
    • https://jechrina.gr/FCKeditor/userimages/file/33632148937.pdfIn PDF document text
    • https://snpwachq.com/files/js/ckfinder/userfiles/files/jelizen.pdfIn PDF document text
    • https://studio45.live/wp-content/plugins/super-forms/uploads/php/files/4use3ahmcr6b8fgggtlus3r6fo/9982484908.pdfIn PDF document text
    • http://toyotaquangninh.org/data/dulieu/files/fupuretajemoze.pdfIn PDF document text
    • http://spartapr.com/images/upload/file/welezedixuwotovepeze.pdfIn PDF document text
    • http://anm-av.de/uploads/files/9576261310.pdfIn PDF document text
    • https://quangcaowebsite.vn/uploads/files/20945672686.pdfIn PDF document text
    • http://benardoutlite.com/admin/fckeditor/fckdata/file/48079268626.pdfIn PDF document text
    • https://ventana-sur.com/wp-content/plugins/formcraft/file-upload/server/content/files/16130232ba7277.pdfIn PDF document text
    • http://hanifeugur.com/image/files/xotezika.pdfIn PDF document text
    • http://uktohabbarijamalta.com/files/file/14095157497.pdfIn PDF document text
    • http://alhouti.com/userfiles/file/fevomibutulakobit.pdfIn PDF document text
    • https://stehovani-ostrava.cz/static_pages_files/file/xolujivilodozenatarova.pdfIn PDF document text
    • http://sgrdinstitutionspandher.org/sgrd/userfiles/file/vurijifisezumi.pdfIn PDF document text
    • https://ribaczpeter.hu/files/file/dukafuzijamawe.pdfIn PDF document text
    • https://heritagelogs.com/wp-content/plugins/super-forms/uploads/php/files/c70euvvcs1lf45ls47f77a7m31/72152764014.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_off0000bf5b.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xBF5B 18036 bytes
SHA-256: 9ce8d8f8deea7e2a2d4236760580ac822f92370b2c3d71f6af3e701c545c338a
font_01_sfnt_off0000ee01.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xEE01 16792 bytes
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1
font_02_sfnt_off00010618.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x10618 10740 bytes
SHA-256: 23a29d25b2df1a9a3ae898056cbece6ecc3ae81c4eec39b91a46f8ab501bf64c