Malicious PDF — malware analysis report

Static analysis result for SHA-256 d3efefc1ca482e23…

MALICIOUS

PDF

77.4 KB Created: 2021-10-08 14:58:07 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2026-06-21
MD5: 053bc11bf095870adbb6e895683b50df SHA-1: eaaa577fe869f1baf0db8bc541f6110da76b98b3 SHA-256: d3efefc1ca482e23df63048a0e501011a3fa8967093c6883edc42e32ec1ef07f
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://dges.in/userfiles/file/vifibapixokitasutufur.pdf In PDF document text
    • https://www.drmarlenebothma.co.za/wp-content/plugins/formcraft/file-upload/server/content/files/16139bb0798ab6---9162133257.pdfIn PDF document text
    • http://newbiesites.com/userfiles/file/sajisenabajaxalegijumufe.pdfIn PDF document text
    • http://socialbomjesus.org.br/wp-content/plugins/formcraft/file-upload/server/content/files/1614d9a844e439---metubasilazizibop.pdfIn PDF document text
    • http://pickup-ws.com/userfiles/files/puzor.pdfIn PDF document text
    • http://tele-klass.ru/i/upload/files/94637735860.pdfIn PDF document text
    • http://4chan.ro/UserFiles/file/4851590201.pdfIn PDF document text
    • https://globaltranslation.com/demo/global_translation/beta/userfiles/files/17001487329.pdfIn PDF document text
    • https://independentmusicleague.com/wp-content/plugins/super-forms/uploads/php/files/7e38e924bdcf071bd1a1908922855dac/52383140462.pdfIn PDF document text
    • https://diagoldjewels.com/userfiles/file/lakevaduvugob.pdfIn PDF document text
    • http://leadingedgecorporate.com/user_images/file/13519406489.pdfIn PDF document text
    • http://3bbb.fr/ckeditor/upload/files/nabod.pdfIn PDF document text
    • http://hk-keber.de/images/file/3105269574.pdfIn PDF document text
    • http://adriennemason.com/assets/files/difutaduxifulubirijivigaj.pdfIn PDF document text
    • https://cingenito.ca/upload/editor/file/garupofejukisadakitif.pdfIn PDF document text
    • https://radmangroup-ye.com/rgfiles/file/90569537099.pdfIn PDF document text
    • http://osteriailgalloelinnamorata.com/userfiles/files/30452054275.pdfIn PDF document text
    • https://webtechnocrats.com/upload/file/73428371943.pdfIn PDF document text
    • http://life-worldwide.org/assets/uploads/files/37396413002.pdfIn PDF document text
    • http://psystems.gr/Administrator/uploads/userpics/OutPostImages/files/30456994472.pdfIn PDF document text
    • http://fge-service.com/userfiles/file/61770931985.pdfIn PDF document text
    • http://mydreamtuscanwedding.com/editor_up/12264638394.pdfIn PDF document text
    • https://benhgout.net/uploads/Files/file/75414455497.pdfIn PDF document text
    • http://aedjtjdshbf.pretty-match.com/upload/files/16746659976.pdfIn PDF document text
    • https://feedproxy.google.com/~r/1eyvgo/aqOO/~3/S30rS-6n6vg/uplcv?utm_term=ambother+led+lights+manualPDF 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_off0000caf4.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xCAF4 16792 bytes
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1
font_01_sfnt_off0000e30b.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE30B 10916 bytes
SHA-256: 19b83eb0ea7291303008e03e9686131e593074dbfee84ab7cf10ed11afa65a89
font_02_sfnt_off0000fbe4.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xFBE4 16936 bytes
SHA-256: 8ab8d7f6591819f9084debbd912897b36c917d81bf2eee0fd2846b0f72fe133d