Malicious PDF — malware analysis report

Static analysis result for SHA-256 4782e499288273ef…

MALICIOUS

PDF

91.5 KB Created: 2021-09-03 16:58:35 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2026-06-20
MD5: 9fd129ab8ce6e20b9e66a3fa00ad5e41 SHA-1: d84735e3c5381f39c7fc3547fa758b217f7eff49 SHA-256: 4782e499288273ef957598da8b08c364989b2747faa56040161598ae75cb779f
176 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9971

Heuristics 7

  • 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.
  • Callback phishing phone lure medium SE_CALLBACK_LURE
    Document asks the user to call a phone number in billing, refund, subscription, fraud, or security context — consistent with callback phishing or tech-support scam patterns. Suppressed for legitimate-issuer (IRS/gov/official-form) or Microsoft license-boilerplate documents that carry no urgency or charge/dispute escalation.
  • 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://www.pointcookelectrician.com.au/wp-content/plugins/formcraft/file-upload/server/content/files/1607fbcfce1948---4245316558.pdf In PDF document text
    • http://olympicburger1988.com/uploads/files/63678999253.pdfIn PDF document text
    • https://www.bocamvigliesrooms.com/wp-content/plugins/super-forms/uploads/php/files/096bd1e2a78bdcd20ac56d76dae1aa8a/81242513292.pdfIn PDF document text
    • http://brno-skoleni.cz/ckfinder/userfiles/files/sosonif.pdfIn PDF document text
    • http://coinproject.com/userfiles/image/file/dezunoxapasitapu.pdfIn PDF document text
    • http://24x7taazasamachar.com/assets/ckfinder/core/connector/php/uploads/files/37294250726.pdfIn PDF document text
    • http://curry-box-deluxe.de/userfiles/file/xonuxamamatobixore.pdfIn PDF document text
    • http://geology.ie/wp-content/plugins/formcraft/file-upload/server/content/files/1609a62e66831c---9130982257.pdfIn PDF document text
    • https://formapolis.it/wp-content/plugins/super-forms/uploads/php/files/59d4255597d7d4928c8163ec0e3d895f/juzinasopativurutafak.pdfIn PDF document text
    • https://sckstone.com/wp-content/plugins/super-forms/uploads/php/files/5f746aa57832583bf79bfd5862f632f2/40270635385.pdfIn PDF document text
    • https://www.advids.io/wp-content/plugins/formcraft/file-upload/server/content/files/160b7cd9ae7940---pixezejeruduxeditob.pdfIn PDF document text
    • http://alexhoffordphotography.com/temp/files/file/diperuligorezuvixajugar.pdfIn PDF document text
    • http://www.asejnrtigers.co.uk/wp-content/plugins/formcraft/file-upload/server/content/files/1609c824d6b942---namavebasulupakera.pdfIn PDF document text
    • https://smarttactic.ro/wp-content/plugins/formcraft/file-upload/server/content/files/16100839503056---senujukudaputarulip.pdfIn PDF document text
    • http://conelser.hu/fck_uploads/file/8710019707.pdfIn PDF document text
    • https://beaumont-residence.com/wp-content/plugins/super-forms/uploads/php/files/at7om6v6olkars0mv7ka6a89ql/12539576561.pdfIn PDF document text
    • https://valve-toho.com/userfiles/file/pokefovene.pdfIn PDF document text
    • https://sancarspune.com/wp-content/plugins/super-forms/uploads/php/files/81bb69b035abf93cfb4f58a00fede59b/jaxezikopadolotonik.pdfIn PDF document text
    • https://www.horisunmauritius.com/wp-content/plugins/super-forms/uploads/php/files/dca99a814ef7079d5edc68e688e64d7d/7249636711.pdfIn PDF document text
    • http://opuspoint.com/ckfinder/userfiles/files/towukuzodefatanejixukubed.pdfIn PDF document text
    • https://anzmrrn.org/wp-content/plugins/formcraft/file-upload/server/content/files/1607305c14bb21---zatuzumupel.pdfIn PDF document text
    • http://www.hkwebdesign.com.hk/wp-content/plugins/formcraft/file-upload/server/content/files/160d5f811b4657---gutenitudedipaforew.pdfIn PDF document text
    • http://peaceinsrilanka.lk/userfiles/file/perewefuputolilutumufi.pdfIn PDF document text
    • https://feedproxy.google.com/~r/1eyvgo/aqOO/~3/S30rS-6n6vg/uplcv?utm_term=pathophysiology+of+epilepsy+pdfPDF 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_off000100ff.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x100FF 10688 bytes
SHA-256: 9d9d27bf914969186a0abb616710119501a7c997ee0f2fff79f2fa8c222f52a9
font_01_sfnt_off0001197d.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x1197D 17844 bytes
SHA-256: d376031f1c35e2425a15fffc2251da112c438824bdfd2d31ccef2430987edfca
font_02_sfnt_off00014850.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x14850 16792 bytes
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1