Malicious PDF — malware analysis report

Static analysis result for SHA-256 4e38b202abce95c9…

MALICIOUS

PDF

70.5 KB Created: 2021-10-11 10:02:31 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2026-06-19
MD5: 3dc02eca0a5d990a61bc811812a0a26b SHA-1: 9710798a752f19198ec048442da900d2e6a682b3 SHA-256: 4e38b202abce95c980471870703b70b2168c0f081998d2451eb428e5dd0bfb08
156 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9965

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://icbiz.ru/userfiles/file/gejulelekefi.pdf In PDF document text
    • https://tselectromechanical.com/uploads/CKfiles/files/pewolelipupusupomunovax.pdfIn PDF document text
    • https://szallas-karpatalja.net/upload/50578243326.pdfIn PDF document text
    • http://acmemask.com/upfiles/editor/files/69072262763.pdfIn PDF document text
    • https://www.hmgfinance.com/ckfinder/userfiles/files/verodelaxo.pdfIn PDF document text
    • http://unityproductions.com/upload/files/64457749293.pdfIn PDF document text
    • http://elcolono.net/userfiles/files/71092336052.pdfIn PDF document text
    • https://peoplesmodelinternational.com/ckfinder/userfiles/files/vudabewaboga.pdfIn PDF document text
    • http://tianjin.relieved007.cn/upload/files/33622399149.pdfIn PDF document text
    • https://brune-schmuckwerk.de/ckfinder/userfiles/files/nowel.pdfIn PDF document text
    • https://plumcourse.com/wp-content/plugins/super-forms/uploads/php/files/189fd10d4bb34f960551aa578685ecfa/95588601261.pdfIn PDF document text
    • http://dnestrovsk.es-pmr.com/constructor/dnestrovsk/ckfinder/userfiles/files/balutero.pdfIn PDF document text
    • http://aunay-sous-auneau.fr/ckfinder/userfiles/files/setavilitekitopena.pdfIn PDF document text
    • https://peiitw.com/Upload/ckeditor/files/pomixejawituwamo.pdfIn PDF document text
    • http://www.191seo.com/wp-content/plugins/formcraft/file-upload/server/content/files/1614ccdfd82cbb---tusikisadidekamakida.pdfIn PDF document text
    • https://gemwares.iceleajewel.com/userfiles/file/gerurexid.pdfIn PDF document text
    • http://nhadephoanhao.vn/upload/ckupload/files/wubafepupet.pdfIn PDF document text
    • https://fieldofgreen.com/wp-content/plugins/super-forms/uploads/php/files/4495afe5e7849afaa85ab284f8d8cbea/47187342643.pdfIn PDF document text
    • http://comlark.ru/userfiles/files/mokoxeluge.pdfIn PDF document text
    • https://derechosenred.org/aym_image/files/fekesunosuraxazezosuk.pdfIn PDF document text
    • http://sro52.ru/uploads/files/relanosigoteregenuludaw.pdfIn PDF document text
    • http://vhshf.de/File/berugirogenojokitobujodop.pdfIn PDF document text
    • https://feedproxy.google.com/~r/skout/mBVl/~3/YTWXjIUwRh0/uplcv?utm_term=7+physical+properties+of+mineralsPDF 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_off0000b34a.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xB34A 10812 bytes
SHA-256: 6d46ebbb09e5150e4bb4a36fb0690ba5073287ae064232c534a5a88f5f287e62
font_01_sfnt_off0000cc1d.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xCC1D 16092 bytes
SHA-256: 4e441bb94d198124c6544fc44a636d0a8cdd54e2e89a0553ec0ff0bea3adc873
font_02_sfnt_off0000f4d8.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF4D8 16792 bytes
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1