Malicious PDF — malware analysis report

Static analysis result for SHA-256 1dc214328edfa267…

MALICIOUS

PDF

89.2 KB Created: 2021-08-10 18:37:39 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2026-05-30
MD5: 3e5e8beec68c6ebff063ac0a1467f17a SHA-1: ea5f9d24b01260159e7c8fae801942af7d637d92 SHA-256: 1dc214328edfa26756ffb3dacf31485630cfdc6329804bb10afd43209b731b1b
156 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9976

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 https://omomediacion.com/wp-content/plugins/super-forms/uploads/php/files/fc3e14547366d4349dc84f9734e5fe52/tuzujixolotekuga.pdf In PDF document text
    • http://beckydavidsonhomes.com/wp-content/plugins/formcraft/file-upload/server/content/files/16085f8d8ade48---82939195033.pdfIn PDF document text
    • http://symbioticlifetech.org/attfile/fckimg/file///20210507193539_683659448.pdfIn PDF document text
    • http://danieldesignpro.com/userfiles/zemisivoluz.pdfIn PDF document text
    • http://www.kevinbrooks.ca/wp-content/plugins/formcraft/file-upload/server/content/files/160aa93bd8701b---nilida.pdfIn PDF document text
    • http://nhasachnguyenvancu.com/Images_upload/files/koletidejuganufu.pdfIn PDF document text
    • http://cohn-vossen.com/wp-content/plugins/formcraft/file-upload/server/content/files/1607b698d20e9e---gumowesetugasidekazofup.pdfIn PDF document text
    • http://www.holzbau-hoelzl.at/wp-content/plugins/formcraft/file-upload/server/content/files/1608d494504d77---83217123080.pdfIn PDF document text
    • https://barcelonamedicalcenter.com/files/galeria/files/63884964077.pdfIn PDF document text
    • http://harekatmemuru.com/images/Media/files/18752393206.pdfIn PDF document text
    • https://securityguardsupply.org/php/uploads/file/52503375695.pdfIn PDF document text
    • http://deborahbrown.us/clients/860103/File/21289360046.pdfIn PDF document text
    • https://foundryindia.org/userfiles/file/51877413808.pdfIn PDF document text
    • https://jetaime-shop.com/files/lopavokizubum.pdfIn PDF document text
    • http://wedding-ideas.ru/ckfinder/userfiles/files/teronivewatuv.pdfIn PDF document text
    • http://apcmagon.com/userfiles/42787991859.pdfIn PDF document text
    • http://alvasari.com/wp-content/plugins/formcraft/file-upload/server/content/files/160825b3d476d8---16493325249.pdfIn PDF document text
    • https://giustofiori.it/file/91375985510.pdfIn PDF document text
    • http://uro-medical.pl/zdjecia/fotki/file/55579305915.pdfIn PDF document text
    • https://agape4u.org/userfiles/file/6461296594.pdfIn PDF document text
    • http://svx.su/ffile/file/22678671526.pdfIn PDF document text
    • https://atlanthealth.com/wp-content/plugins/super-forms/uploads/php/files/26847be5b8ee00e429ac1e919f8efc1c/reganudasemuge.pdfIn PDF document text
    • http://www.caribbeandentist.com/wp-content/plugins/formcraft/file-upload/server/content/files/1609f91b79c1c8---ridulizatax.pdfIn PDF document text
    • https://feedproxy.google.com/~r/Uplcv/~3/zMnd8XtcwSM/uplcv?utm_term=how+to+play+carrom+board+game+in+teluguPDF 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_off0000f722.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF722 17052 bytes
SHA-256: 7f212fd09e08831d3982ab01bfff234b70c7747e614ec98767f906f4ada884eb
font_01_sfnt_off000123cb.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x123CB 16792 bytes
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1
font_02_sfnt_off00013be2.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x13BE2 11120 bytes
SHA-256: 3c71ec08e76ead8f1fe277b10717e0016046efedc2097378ebf24294f5968bad