Malicious PDF — malware analysis report

Static analysis result for SHA-256 7939e70361edc359…

MALICIOUS

PDF

85.6 KB Created: 2021-10-08 11:46:38 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2026-06-14
MD5: 0c825dec3c062ffe46144fe4b5361f05 SHA-1: 7e9ee791058c35e5e6d7e598d6977bdaa3eeacd4 SHA-256: 7939e70361edc359a0c7a34e284973b8f135cf74c63f33b18e57d8b748cb48f9
156 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9912

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 https://wamsconference.com/wp-content/plugins/super-forms/uploads/php/files/d8a4148978f399bb1f8591561bfbd5c9/venumavoji.pdf In PDF document text
    • http://eduomania.com/wp-content/plugins/formcraft/file-upload/server/content/files/1615806885b784---46674276870.pdfIn PDF document text
    • http://crabandclaw.com/uploads/files/zoribibakitebamixal.pdfIn PDF document text
    • http://unicorn-furnitures.com/d/files/22778550580.pdfIn PDF document text
    • http://jdjcnc.com/upfolder/e/files/20210911195714.pdfIn PDF document text
    • https://krzczonowice.pl/gfx/file/16550685357.pdfIn PDF document text
    • https://hagabb.ro/ckfinder/userfiles/files/tatuludogogadas.pdfIn PDF document text
    • https://gbagencement.fr/uploads/file/50443707166.pdfIn PDF document text
    • http://bawaconstructions.com/editorData/file/11357917351.pdfIn PDF document text
    • https://democv.associasuite.com/imagenes/contenidos/files/97345567775.pdfIn PDF document text
    • https://art-gallery.mn/uploads/files/retubebukuwa.pdfIn PDF document text
    • https://ontogepszerviz.hu/editor_up/99506505641.pdfIn PDF document text
    • http://studioguagnoni.it/userfiles/files/nufamubipat.pdfIn PDF document text
    • http://zatacorp.com/upload/files/siworug.pdfIn PDF document text
    • http://laibros.com/ckeditor/userfiles/files/23914934794.pdfIn PDF document text
    • http://dc-a0dcf319a153.breakthroughsport.com/userfiles/files/pikiku.pdfIn PDF document text
    • https://brianhigbielaw.com/UserFiles/file/xurotaxeridikegilezonij.pdfIn PDF document text
    • http://runwellconsulting.eu/file/file/donolodovinibipo.pdfIn PDF document text
    • https://muratay.nl/userfiles/file/78022432753.pdfIn PDF document text
    • http://gd-weimi.com/upfolder/e/files/20210923184745.pdfIn PDF document text
    • http://klick-tipp.at/ckfinder/userfiles/publics/files/ripafotikipogar.pdfIn PDF document text
    • http://medical-1669.com/userfiles/files/72016357706.pdfIn PDF document text
    • http://klemanpince.hu/files/file/xovabukumedawe.pdfIn PDF document text
    • http://entrackintl.com/uploads/bapetewi.pdfIn PDF document text
    • https://www.ideaklinikkadikoy.com/wp-content/plugins/formcraft/file-upload/server/content/files/16145f80042433---futajabuxalodan.pdfIn PDF document text
    • http://www.moteco.ro/wp-content/plugins/formcraft/file-upload/server/content/files/1614e5d86f0998---25423985269.pdfIn PDF document text
    • https://feedproxy.google.com/~r/skout/mBVl/~3/S30rS-6n6vg/uplcv?utm_term=swift+to+objective+cPDF 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_off0000e1a7.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE1A7 20864 bytes
SHA-256: 580f5fe2e8364957597447be17914cf70ef13371e0cdc8cb928fae67908ab6b9
font_01_sfnt_off000119a0.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x119A0 10244 bytes
SHA-256: c95f09562ec79587a200f1cbb248c4bcbd7e36b42c8ceff480b53bcfddb4e43d
font_02_sfnt_off000130d4.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x130D4 16792 bytes
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1