Malicious PDF — malware analysis report

Static analysis result for SHA-256 782be368a88ca1c5…

MALICIOUS

PDF

86.6 KB Created: 2021-09-12 16:37:03 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2026-06-16
MD5: 30f1a87450a20d34be45b5208e56db1e SHA-1: db4840a199d2ca10bb44eb093217fba29206d339 SHA-256: 782be368a88ca1c5048c28d047bd54ca0b10c7b9b233ba4cd440241a4728dec6
156 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9972

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://cityface.cz/res/file/farug.pdf In PDF document text
    • http://tz5168.com/uploadfile/image/2021/09/01/file/20210901_100245_119.pdfIn PDF document text
    • http://archifolder.com/userfiles/files/4852251257.pdfIn PDF document text
    • https://popcouncilinstitute.org/wp-content/plugins/super-forms/uploads/php/files/9d71a6067e92dea112bab28f359b96f7/65571541437.pdfIn PDF document text
    • http://www.sunarmisir.com.tr/wp-content/plugins/super-forms/uploads/php/files/om6m5hl5a4ma4okegldsadjlc0/guruwegubovaxofamubo.pdfIn PDF document text
    • http://sunriverps.com/data/editor/file/turujulefa.pdfIn PDF document text
    • http://www.rosabrockenhaus.ch/ckfinder/userfiles/files/16734321736.pdfIn PDF document text
    • https://www.sacproblemleri.com/wp-content/plugins/formcraft/file-upload/server/content/files/1613d8be81fdd8---18965338390.pdfIn PDF document text
    • https://www.caesarstravel.com/wp-content/plugins/formcraft/file-upload/server/content/files/1613c76433f975---20778793393.pdfIn PDF document text
    • https://precisionautoandac.com/wp-content/plugins/super-forms/uploads/php/files/614e568f9bd78924e22fb0b36266fe77/moxojon.pdfIn PDF document text
    • http://evpltravel.com/xv_image/file/dufusarazaxasesamel.pdfIn PDF document text
    • http://wang023spa.com/userfiles/202109file/2021090905010270554.pdfIn PDF document text
    • https://www.abaco-engineering.it/wp-content/plugins/formcraft/file-upload/server/content/files/1613caa89a6c81---88783735027.pdfIn PDF document text
    • http://baocaosudanang24h.com/uploads/image/files/rixasipunerilebum.pdfIn PDF document text
    • http://mvdeastudio.it/userfiles/files/fegad.pdfIn PDF document text
    • http://droprint.my/home/ququ4923/public_html/userfiles/file/sarogowuzovada.pdfIn PDF document text
    • http://allegroescrow.com/wp-content/plugins/formcraft/file-upload/server/content/files/1612fdcaf98882---rugiruxo.pdfIn PDF document text
    • http://dongzzang.com/userfiles/file///42283110281.pdfIn PDF document text
    • https://dentinale.eu/wp-content/plugins/super-forms/uploads/php/files/fd82b8ca594c11d24ea218993fbfbcf0/muserejorev.pdfIn PDF document text
    • https://www.opsclown.it/ckfinder/userfiles/files/87749843062.pdfIn PDF document text
    • https://ddriu.hu/wp-content/plugins/super-forms/uploads/php/files/ff267d2a4c97500532e040a1e33b4a0d/26276638986.pdfIn PDF document text
    • https://feedproxy.google.com/~r/skout/mBVl/~3/zMnd8XtcwSM/uplcv?utm_term=gaming+mode+the+ultimate+game+experience+boosterPDF 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_off0000ea49.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xEA49 16792 bytes
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1
font_01_sfnt_off00010260.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x10260 11340 bytes
SHA-256: df8543b47ae6aadf37c3d8d14e7243249e8d52445576970bcbc1e0f0a760ec5b
font_02_sfnt_off00011c73.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x11C73 17976 bytes
SHA-256: 18727127678e4186bcdd8897bf45df78ec36f5296fcd8d397d61fc8139f3f7f3