Malicious PDF — malware analysis report

Static analysis result for SHA-256 450a84bf29c3768b…

MALICIOUS

PDF

185.7 KB Created: 2021-12-06 18:04:08 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2026-04-24
MD5: f91069e93e73b4fa77d44d687e4513d0 SHA-1: f7a14deb2261afb798ed8e56f45848c59afe0279 SHA-256: 450a84bf29c3768bb82af22bd848cf1dba52af12921b5f05c6358cf37d368833
156 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9676

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://www.denisonlandscaping.com/wp-content/plugins/formcraft/file-upload/server/content/files/16134010492a14---25031970104.pdf In PDF document text
    • http://abwclayton.com/uploads/files/4099995157.pdfIn PDF document text
    • http://packagingandfoodmachinary.com/userfiles/file/45716769741.pdfIn PDF document text
    • https://rmissio.pl/wp-content/plugins/formcraft/file-upload/server/content/files/16148ad0923420---firaxafiw.pdfIn PDF document text
    • https://hyosung-gulf.com/uploads/file/towaderiti.pdfIn PDF document text
    • https://advicezone.org.uk/wp-content/plugins/super-forms/uploads/php/files/219ao42a2cqj58b6ia495d894r/38871777696.pdfIn PDF document text
    • http://skontrolsengineering.com/file_media/file_image/file/pomaxexixupufu.pdfIn PDF document text
    • http://joeun-it.com/userData/board/file/99940664815.pdfIn PDF document text
    • https://cfi-registration.org/buzzboxgift/img/userfiles/files/40168656713.pdfIn PDF document text
    • https://gulertrafik.com/wp-content/plugins/super-forms/uploads/php/files/52t3h261qp0jrik6vqeijol580/95788253636.pdfIn PDF document text
    • http://electronicaindex.nl/images/uploads/89073844089.pdfIn PDF document text
    • http://087334211.kad.tw/kads/ckfinder/userfiles/files/54703206591.pdfIn PDF document text
    • http://immobilier-valence-agen.com/userfiles/file/gebab.pdfIn PDF document text
    • https://associacao.animalife.pt/site/upload/file/xiwuxisewefokiwosirewalug.pdfIn PDF document text
    • https://tradegateindia.com/userfiles/file/boriderimufi.pdfIn PDF document text
    • https://hidropomp2008.com/uploads/userfiles/file/90792547493.pdfIn PDF document text
    • https://dbmotorbrokers.com/userfiles/file/82020205712.pdfIn PDF document text
    • https://wcdt.co.th/wp-content/plugins/super-forms/uploads/php/files/8dneshrfuutkolimfnjlavl9gd/jakadigamaxuxo.pdfIn PDF document text
    • http://falconartistmanagement.com/ckfinder/userfiles/files/71331850052.pdfIn PDF document text
    • http://oa30us.com/userfiles/file/63794094049.pdfIn PDF document text
    • http://mas.vacations/wp-content/plugins/formcraft/file-upload/server/content/files/161456f8e9d1b2---nikotarikelokexulowaso.pdfIn PDF document text
    • http://www.centrosanmarco.eu/img/news/files/vurafawibegatewapafipo.pdfIn PDF document text
    • http://seidels-mineralienwelt.de/images/uploaded/file/53464776382.pdfIn PDF document text
    • http://canxetaianhduc.com/images/file/rofurukekowapekeruku.pdfIn PDF document text
    • https://feedproxy.google.com/~r/Gsjc/~3/RC0zOYPQW8A/uplcv?utm_term=op+sks+escape+from+tarkovPDF 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 extracted file (font_00_sfnt_off00026aab.bin)
    • http://dejavu.sourceforge.net/wiki/index.php/LicenseIn extracted file (font_00_sfnt_off00026aab.bin)

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00026aab.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x26AAB 10580 bytes
SHA-256: 911c39c025d88e992f68c6123d6035fd343ec49e2fd085e770db7046fb606e9e
font_01_sfnt_off00028303.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x28303 16416 bytes
SHA-256: cfa2c3fbce80cc5607e01af033b793d17c57c214fb1d96e845eedea48cccd336
font_02_sfnt_off000299a2.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x299A2 24148 bytes
SHA-256: 81bc3b63f2a5e0657f876b5b10b45c711b93dc40b22225fbb03db1804ad072fd