Malicious PDF — malware analysis report

Static analysis result for SHA-256 4450a770aeeea297…

MALICIOUS

PDF

81.7 KB Created: 2021-08-20 08:17:42 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2026-06-10
MD5: 8c2946aacd6e684e7c76c20b31de6bb6 SHA-1: 653c9205f660baabf09dfa8e8c9adb95799cbe3f SHA-256: 4450a770aeeea297594918b80777c4bbdcc33f6b25e56a4c908cc58c7520fa1a
156 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9977

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://nceptionsolutions.com/wp-content/plugins/super-forms/uploads/php/files/30f44fd0d86c41acb1f3277f7d71c473/sakejomikoji.pdf In PDF document text
    • http://www.finanzanlagen-honorarberatung.de/wp-content/plugins/formcraft/file-upload/server/content/files/1609036cfcb889---devedamowapubatupatu.pdfIn PDF document text
    • https://kayakbranson.com/wp-content/plugins/formcraft/file-upload/server/content/files/1607e4f34776ff---15514617039.pdfIn PDF document text
    • http://hurtmar.pl/Upload/file/lofoderatatubikixusaze.pdfIn PDF document text
    • http://jnnycc.org/userfiles/file/jiwigekozutemutapo.pdfIn PDF document text
    • http://kup-vino.cz/web/ckfinder/userfiles/files/50415182863.pdfIn PDF document text
    • http://skup-laptopow.com/wp-content/plugins/formcraft/file-upload/server/content/files/1607c770924959---92072368888.pdfIn PDF document text
    • https://alianzatours.com/imagenes/file/8061086082.pdfIn PDF document text
    • https://demircanticaret.com/userfiles/file/relukubozodudifaz.pdfIn PDF document text
    • http://flamefitnessstudio.com/cewit/images/file/rorupavijujuteripeb.pdfIn PDF document text
    • http://allseasonsart.com/uploads/fck_uploads/file/29248897610.pdfIn PDF document text
    • https://burmesecatclub.nz/wp-content/plugins/super-forms/uploads/php/files/2897a34c34ed7581498f9ce117273fca/69131473714.pdfIn PDF document text
    • https://forcechicago.com/wp-content/plugins/super-forms/uploads/php/files/8cfe62dfeaeb936d5aae310c5f19da80/65376650069.pdfIn PDF document text
    • https://anmimar.com/royal/userfiles/file/92198338430.pdfIn PDF document text
    • https://brokenspoke.com/wp-content/plugins/super-forms/uploads/php/files/53827581e1ee14155658d74765fa0be8/9141722347.pdfIn PDF document text
    • http://ipublicity.cz/data/file/80075876814.pdfIn PDF document text
    • http://www.nandomoraes.com.br/wp-content/plugins/formcraft/file-upload/server/content/files/16072bd71a6259---83912941736.pdfIn PDF document text
    • https://joyfool.art/wp-content/plugins/super-forms/uploads/php/files/fee9f15d7fe9fd4c7f07935f2c310a17/zumiti.pdfIn PDF document text
    • http://pospatrans.cz/UserFiles/File/9640373222.pdfIn PDF document text
    • https://ascii.tn/web/cgi/file/maroworejur.pdfIn PDF document text
    • https://nestsearch.in/admin/uploads/file/16512484197.pdfIn PDF document text
    • https://readxyz.com/wp-content/plugins/super-forms/uploads/php/files/4b927c3e5b675298f9954721bb1ba051/19917377894.pdfIn PDF document text
    • https://gea99.com/ckfinder/userfiles/files/40580422932.pdfIn PDF document text
    • https://feedproxy.google.com/~r/Uplcv/~3/A3Ryygt5BCM/uplcv?utm_term=general+affidavit+template+nzPDF 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_off0000db62.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xDB62 17524 bytes
SHA-256: 1d00175c605c1d349527d6bcbdf2e774275d0f60a825bf35366a6e8a3b5dcf6d
font_01_sfnt_off00010926.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x10926 10536 bytes
SHA-256: c7452666733b9d1281adc6b74508e271965e8afe239e232a449beebc5211c075
font_02_sfnt_off00012125.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x12125 16792 bytes
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1