Malicious PDF — malware analysis report

Static analysis result for SHA-256 4e367084dcb4cdd1…

MALICIOUS

PDF

138.8 KB Created: 2021-12-21 11:13:18 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2026-06-19
MD5: c46050992a42cc6777c1855232b138a2 SHA-1: 21abde54f46b82a7e51605d5123eedea1c71767e SHA-256: 4e367084dcb4cdd19a4b91e2c191ad5a798a6094bcaff18cd582931ec71518dd
156 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9922

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://thefertilizerequipment.com/d/files/72351252805.pdf In PDF document text
    • https://bedandbreakfastholten.nl/userfiles/file/mevevitamegevanix.pdfIn PDF document text
    • https://grahampropertytax.com/wp-content/plugins/super-forms/uploads/php/files/06116d889ffecc5234ab06769fade54d/varolume.pdfIn PDF document text
    • http://guojingmall.com/userfiles/file///6563753462.pdfIn PDF document text
    • https://diennuocdanang.com/uploads/image/files/kukoto.pdfIn PDF document text
    • https://www.reliancecareuk.com/wp-content/plugins/super-forms/uploads/php/files/8819919ff75100c4ba1d6d1aae8833f8/14012767840.pdfIn PDF document text
    • http://tbeaindia.com/userfiles/file/2095206812.pdfIn PDF document text
    • https://curvy.tw/upload/files/wokelutixisozilovesazu.pdfIn PDF document text
    • http://sk-uralstroy.ru/uploads/files/68133201005.pdfIn PDF document text
    • https://ymy-tea.tw/upload/files/bexepivadugixe.pdfIn PDF document text
    • https://penzionradvanice.cz/res/file/kalomizikefujobevamako.pdfIn PDF document text
    • http://poketomecam.com/uploads/files/8629541534.pdfIn PDF document text
    • http://www.norestim.ro/wp-content/plugins/formcraft/file-upload/server/content/files/1619c4e18719ad---68239149272.pdfIn PDF document text
    • https://la-klamm.org/Files/files/63663783533.pdfIn PDF document text
    • https://norservis.info/files/files/72423047511.pdfIn PDF document text
    • http://world-housing.jp/ckfinder/userfiles/files/12909439384.pdfIn PDF document text
    • http://meimagedance.tw/ufiles/files/12374651910.pdfIn PDF document text
    • http://111-orte.de/testarea/cwsCMSlight/media/files/ligubebafizezu.pdfIn PDF document text
    • http://haraj-alqunfudhah.com/userfiles/file/12429564589.pdfIn PDF document text
    • http://www.radanhorse.com/resource/files/sibija.pdfIn PDF document text
    • http://sampoernastrategic.com/uploads/image/files/86908795675.pdfIn PDF document text
    • http://w-w.cn/isee/pfm/cms/uploadfile/fck/file/wolorigixaru.pdfIn PDF document text
    • http://feedproxy.google.com/~r/Xvkpad/~3/23D8k0Ec_6w/uplcv?utm_term=tecnologia+da+informa%C3%A7%C3%A3o+grade+curricular+ufrnPDF 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_off0001b7fe.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x1B7FE 16416 bytes
SHA-256: cfa2c3fbce80cc5607e01af033b793d17c57c214fb1d96e845eedea48cccd336
font_01_sfnt_off0001ce9d.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x1CE9D 20152 bytes
SHA-256: 5e60276c122549e2c7c65a6e2096059d13af9a558f652182b657a5aa00aedb3f
font_02_sfnt_off0002011c.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x2011C 11080 bytes
SHA-256: c80d7f7f2a9383c5adf44b7c0413495857fe55dff94f7bb64f31a126ff9017ba