Malicious PDF — malware analysis report

Static analysis result for SHA-256 4e3bd1a08ea7b33b…

MALICIOUS

PDF

74.3 KB Created: 2021-08-31 20:11:23 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2026-06-19
MD5: 0d14c9776213be8e35296b37c7926edd SHA-1: 40ce98ce9a2c1f405f7f27e894877e84f64bd0ea SHA-256: 4e3bd1a08ea7b33b49eb999532ea14691de9815aec7bfff455ddcc0232638c6b
156 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9973

Heuristics 6

  • ClamAV: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0
  • 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://lovellreunion.com/clients/4/42/420738e4954c29d3cfd02fdb1bc9139f/File/nefabup.pdf In PDF document text
    • http://ashioke.com/images/library/File/raluzetubujagaleposuganu.pdfIn PDF document text
    • http://ranaghatpchsschool.org/userfiles/file/webam.pdfIn PDF document text
    • http://tecsun-moscow.ru/docs/file/42926018534.pdfIn PDF document text
    • https://gyn-koe70.de/obrazky/file/80539360447.pdfIn PDF document text
    • http://autoscuolepintozzi.it/userfiles/files/zeral.pdfIn PDF document text
    • http://www.520amis.com/upload/files/89734162973.pdfIn PDF document text
    • http://baaningdoi.com/file_media/file_image/file/31863105807.pdfIn PDF document text
    • https://turismo-galicia.es/ckfinder/userfiles/files/tawikavuneti.pdfIn PDF document text
    • http://fletcherfamilyreunion.org/clients/52745/File/60501220401.pdfIn PDF document text
    • http://anvlaw.com/userfiles/file/vivizimudewapes.pdfIn PDF document text
    • https://veglifekc.org/wp-content/plugins/super-forms/uploads/php/files//60256663779.pdfIn PDF document text
    • http://vce34.ru/attachments/file/nesadubapokeferavofop.pdfIn PDF document text
    • http://www.commandinglife.com/wp-content/plugins/formcraft/file-upload/server/content/files/160b0da9c548e7---39092912175.pdfIn PDF document text
    • https://latrinquette.com/upload/editor/file/43698366026.pdfIn PDF document text
    • http://www.stallionreadymix.co.za/wp-content/plugins/formcraft/file-upload/server/content/files/1608434ad1df97---5409844645.pdfIn PDF document text
    • https://medicabg.com/uploads/wysiwyg/files/97854562820.pdfIn PDF document text
    • https://www.kiteschule-kiel.de/wp-content/plugins/formcraft/file-upload/server/content/files/16089c8e86edef---66808357379.pdfIn PDF document text
    • http://aprendanow.com/wp-content/plugins/super-forms/uploads/php/files/48a3ab1be09b5edb95f20b4d49de0eda/rutezaxosojometutadaj.pdfIn PDF document text
    • https://www.hontoys.com.au/wp-content/plugins/super-forms/uploads/php/files/rsh9i5567m8a7qj3sp401vf8nr/27988719324.pdfIn PDF document text
    • http://grawerlik.pl/userfiles/file/14534734280.pdfIn PDF document text
    • https://wccia-vastu.com/wp-content/plugins/super-forms/uploads/php/files/b6f84dd2a663cf9e91904dfd1297067c/38410296661.pdfIn PDF document text
    • https://sanruouvang.net/images/uploaded/file/pejajadinuwikawemafil.pdfIn PDF document text
    • https://alasclub.gr/neuro/ckfinder/userfiles/files/gepopabemozavoseropobuzur.pdfIn PDF document text
    • https://feedproxy.google.com/~r/skout/mBVl/~3/3CAf4wW3hvY/uplcv?utm_term=top+10+fastest+dog+in+the+worldPDF link annotation
    • https://bxthirteen.wpengine.com/wp-content/plugins/super-forms/uploads/php/files/aa735b47365a2682454054db8586e37f/85303246036.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_off0000bf9d.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xBF9D 11000 bytes
SHA-256: be3f527eb17c899f273dbefd8ee933c74333c45c99d78cd39a04f4cfad732224
font_01_sfnt_off0000d8f7.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xD8F7 16484 bytes
SHA-256: e50a1ce558b3111ce09a7bb11ff9a41f93071404dca2875fa62c5c96a4ef54dc
font_02_sfnt_off0001034f.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x1034F 16792 bytes
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1