Malicious PDF — malware analysis report

Static analysis result for SHA-256 af236f973d066cef…

MALICIOUS

PDF

85.8 KB Created: 2022-05-04 04:59:06 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2026-06-21
MD5: b40a9cf11b67264b463b8564e0044952 SHA-1: 88b591d35bab9f5b19f2f388534ac7c09224f3dc SHA-256: af236f973d066cefa8b08a7eded774986a1a58b14b45ef359078b265320d8f54
156 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9997

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://sunuf.co.za/YmrXLWy8?keyword=business%20logistics%20management%20pienaar%20vogt%20pdf%20online%20pdf%20free%20pdf PDF link annotation
    • https://kuparalaler.weebly.com/uploads/1/3/4/6/134693450/durofixaliduzope.pdfIn PDF document text
    • http://nhasachthunam.com/upload/files/45348533175.pdfIn PDF document text
    • https://gesebasalevajil.weebly.com/uploads/1/3/4/8/134879020/3990286.pdfIn PDF document text
    • https://listocrm.com/userfiles/files/61030801545.pdfIn PDF document text
    • http://communication-pointcom.fr/userfiles/medias/10657011843.pdfIn PDF document text
    • http://www.jimenez-casquet.com/wp-content/plugins/formcraft/file-upload/server/content/files/1620bbe81076cc---velerobupi.pdfIn PDF document text
    • https://wodosokereso.weebly.com/uploads/1/3/1/4/131407547/doxekugodadok-kigebu-pijorifuzoniv.pdfIn PDF document text
    • http://fuerst-architects.com/uploads/file/43242227325.pdfIn PDF document text
    • http://studiotecnicopinto.it/userfiles/files/85633897274.pdfIn PDF document text
    • http://staceyasp.com/UserFiles/file/69018156782.pdfIn PDF document text
    • http://bouwbedrijfansing.nl/userfiles/file/80780499877.pdfIn PDF document text
    • https://wemovimezatura.weebly.com/uploads/1/3/4/6/134611727/8820538.pdfIn PDF document text
    • http://www.deadclan.nl/wp-content/plugins/formcraft/file-upload/server/content/files/162297099b1612---vadojom.pdfIn PDF document text
    • https://postelezmasivu-ostrava.cz/ckfinder/userfiles/files/mumedepozofi.pdfIn PDF document text
    • https://pujokabotavigel.weebly.com/uploads/1/3/7/5/137515201/ce21533e86d.pdfIn PDF document text
    • https://emergent-partners.com/wp-content/plugins/formcraft/file-upload/server/content/files/162014f49efb33---1226346314.pdfIn PDF document text
    • https://valergences.fr/userfiles/file/78755967161.pdfIn PDF document text
    • 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_off0000e792.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE792 17852 bytes
SHA-256: 51f78a258e2c7a14c0bdf3e488bed05da47db028e105092aad440ab41cd57b1b
font_01_sfnt_off000115f6.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x115F6 11184 bytes
SHA-256: 641c0ffff2f9aae3d889ab36db53018c5756a080ada942303223338db05702eb
font_02_sfnt_off00012ff8.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x12FF8 16792 bytes
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1

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