Malicious PDF — malware analysis report

Static analysis result for SHA-256 011041ba6506e07e…

MALICIOUS

PDF

136.8 KB Created: 2021-06-29 09:20:36 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2026-05-28
MD5: 9283d0fd1bf369661a638e18ffe3e828 SHA-1: 258f525b89c5fcb0682014ec802c466157690382 SHA-256: 011041ba6506e07e9256c23f74668c55b87d6c303894852136c411c116e6f140
156 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9756

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://parentini.it/userfiles/files/runuw.pdf In PDF document text
    • http://projectbudapest.hu/wp-content/plugins/formcraft/file-upload/server/content/files/16099fdb0dfe6d---96990753551.pdfIn PDF document text
    • http://trustarshida.co/cache/fck_files/file/5604045909.pdfIn PDF document text
    • http://www.tobywells.org/media/fckdir/file/2326097061.pdfIn PDF document text
    • https://thesmithgrouphouston.com/wp-content/plugins/super-forms/uploads/php/files/83d73bd019486526da9be1d9a504bfe8/39007558516.pdfIn PDF document text
    • https://mszukam.pl/dat//file/lexigizevu.pdfIn PDF document text
    • https://msr-hudsonproperties.com/wp-content/plugins/super-forms/uploads/php/files/de8135e0ed1aa7e445dc1283bfb4aba3/jagaxetirulige.pdfIn PDF document text
    • http://hillcountryawningsandsunscreens.com/wp-content/plugins/formcraft/file-upload/server/content/files/160789492126ab---8892444803.pdfIn PDF document text
    • https://haps.company/wp-content/plugins/super-forms/uploads/php/files/n2reurg87g4mmdsltthcpfc8s3/ratovuzebomemaf.pdfIn PDF document text
    • https://tocgia247.com/wp-content/plugins/super-forms/uploads/php/files/r4hkosjjqedmf91pvcf5bdg2q0/91873325248.pdfIn PDF document text
    • https://refour.eu/wp-content/plugins/super-forms/uploads/php/files/772af12e9c613a3f988089a9f0c1c425/47680232044.pdfIn PDF document text
    • http://szkolka-wiercioch.pl/files/file/pinamijas.pdfIn PDF document text
    • https://jamiatulbanat.in/wp-content/plugins/formcraft/file-upload/server/content/files/1608be7c8ef14b---lakusiz.pdfIn PDF document text
    • https://www.hintonassociates.com/wp-content/plugins/super-forms/uploads/php/files/ff7905cfb25a6ce217e20a03d01001da/79406446941.pdfIn PDF document text
    • http://marketherballize.com/ckfinder/userfiles/files/tibeladefaxun.pdfIn PDF document text
    • https://triangle-electronics.com/assets/userfiles/file/64500515403.pdfIn PDF document text
    • https://championsforchildren.org/wp-content/plugins/super-forms/uploads/php/files/a5238454942ac6c24d01504fd00f8a3d/wodiwapun.pdfIn PDF document text
    • https://hssipm.com/wp-content/plugins/super-forms/uploads/php/files/5ad0ab2d8b92f30ee3ca19cb56a43151/gorexafuvinufikulotimip.pdfIn PDF document text
    • http://bitite.lv/media/txt/122/file/99794458075.pdfIn PDF document text
    • http://www.gametimecatering.com/wp-content/plugins/formcraft/file-upload/server/content/files/16079b3d12a1fb---noxuz.pdfIn PDF document text
    • http://auxerretv.com/content/public/file/30621915691.pdfIn PDF document text
    • http://bilagroup.com/wp-content/plugins/formcraft/file-upload/server/content/files/1606c65c2bc750---lapapomevi.pdfIn PDF document text
    • https://forkidsvietnam.vn/wp-content/plugins/super-forms/uploads/php/files/cv8saa3mrakpl4lcuqbn9o7dpt/16032384600.pdfIn PDF document text
    • http://mijneigenlift.nl/wp-content/plugins/formcraft/file-upload/server/content/files/160842439910a2---robebirasaxorizufaziwe.pdfIn PDF document text
    • https://cvenhancer.com/wp-content/plugins/super-forms/uploads/php/files/d542db31744f058aa959ebd8075672c5/73079012948.pdfIn PDF document text
    • https://refour.eu/wp-content/plugins/super-forms/uploads/php/files/9106750abdbf053dcdfa4aab4618ffb8/wasefotibu.pdfIn PDF document text
    • https://feedproxy.google.com/~r/1eyvgo/aqOO/~3/YTWXjIUwRh0/uplcv?utm_term=largest+non+denominational+churchesPDF 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 extracted file (font_00_sfnt_off0001b619.bin)
    • http://dejavu.sourceforge.net/wiki/index.php/LicenseIn extracted file (font_00_sfnt_off0001b619.bin)

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0001b619.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x1B619 10876 bytes
SHA-256: 1b18b56aa89e45e965e5aa3f86d97246a0c2e5a43984aab0f3ef5dccf857bab4
font_01_sfnt_off0001cece.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x1CECE 16792 bytes
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1
font_02_sfnt_off0001e6e0.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x1E6E0 17780 bytes
SHA-256: 7ac181a4d1deb69ab34602b4e10f63373059fa3e5bdce6af0eef772656abac48