Malicious PDF — malware analysis report

Static analysis result for SHA-256 782578cc1459693c…

MALICIOUS

PDF

70.6 KB Created: 2021-10-01 01:37:24 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2026-06-16
MD5: 88d80d41cd83c2073676523211a2d3d7 SHA-1: bfeb1c1b2192901a8999586a063e68cf8ef89893 SHA-256: 782578cc1459693c02ccf968572000ba2b804a73c9f9a21f73086c6a8e81877a
156 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9978

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 http://chip-chup.hu/upload/file/22005166329.pdf In PDF document text
    • https://processwork.archerhuang.com/ConImg/files/62301360596.pdfIn PDF document text
    • http://xn----7sbezcba9a5aggb3j.xn--p1ai/ckfinder/userfiles/files/tufogutasanur.pdfIn PDF document text
    • http://www.s4b.nl/upload/files/53107264581.pdfIn PDF document text
    • http://udelimpa.es/ckfinder/userfiles/files/wufofur.pdfIn PDF document text
    • http://gusanhightec.com/userData/board/file/wixalejeweg.pdfIn PDF document text
    • http://worksafeorg.com/wp-content/plugins/super-forms/uploads/php/files/59bcqjb0bngqihq8h5dah6b493/37179758874.pdfIn PDF document text
    • https://inchirierielicopter.ro/wp-content/plugins/formcraft/file-upload/server/content/files/16154085d274e5---mugizujiso.pdfIn PDF document text
    • http://michelesherrinlaw.com/customer/3/d/9/3d947ad6ce2568d98b832ccf5548371bFile/gigafitawajikaneg.pdfIn PDF document text
    • https://beaufortbond.com/wp-content/plugins/super-forms/uploads/php/files/53c719202b6c8837271ca9c4736e51d0/baxezaxig.pdfIn PDF document text
    • http://kino-cosmik.ru/sadm_files/6641471380.pdfIn PDF document text
    • http://pizzeriadevita.it/userfiles/files/54578020146.pdfIn PDF document text
    • https://pottoka.info/files/galeria/files/95077162568.pdfIn PDF document text
    • https://www.agcontraincendios.es/ckfinder/userfiles/files/9997790091.pdfIn PDF document text
    • https://rcot.org/userfiles/file/50678156947.pdfIn PDF document text
    • http://tsyrulnikov.ru/upload/file/raxuduvamokuloduvorir.pdfIn PDF document text
    • https://studiovizia.com/webroot/img/content/files/61970030144.pdfIn PDF document text
    • http://aajude.pt/backoffice/ckfinder/userfiles/files/94707068303.pdfIn PDF document text
    • https://siahotel.com/userfiles/files/8777835381.pdfIn PDF document text
    • https://marcuspietrek.de/MARCUS/files/file/bunutaximukosifobekowikis.pdfIn PDF document text
    • http://wtmongolia.com/materials/file/17715099168.pdfIn PDF document text
    • http://birkhoffhi.com/userfiles/files/tufularesogajilenido.pdfIn PDF document text
    • https://healthlantern.com/ckeditor/ckfinder/userfiles/files/rosefon.pdfIn PDF document text
    • https://feedproxy.google.com/~r/1eyvgo/aqOO/~3/3vuEKuznOb8/uplcv?utm_term=how+to+create+mail+id+without+phone+numberPDF 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_off0000b2ce.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xB2CE 16792 bytes
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1
font_01_sfnt_off0000cae0.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xCAE0 15852 bytes
SHA-256: d13b14adcaddce8e5def6fdbe073eaf94a305f43e1f0d1682008b07ae184bd4b
font_02_sfnt_off0000f3cd.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF3CD 10928 bytes
SHA-256: 333a0b7b37343afa463e07e8e4bb31871449a6c1b371498008ccfd5d04a9ec51