Malicious PDF — malware analysis report

Static analysis result for SHA-256 445acd69339187df…

MALICIOUS

PDF

97.4 KB Created: 2021-08-03 00:31:09 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2026-06-07
MD5: 04def64e934baa7de4f047871a722ba3 SHA-1: c32711ebd3c615108ff33dd02ddfe50782e760d5 SHA-256: 445acd69339187df04caada28f96dbe3ccd849274e7d51ad7d2e6d374ecefc96
164 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9996

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.
  • Urgency / deadline lure low SE_URGENCY_LURE
    Document contains urgency or deadline language ('account will be terminated', 'action required within 24 hours', etc.) — useful context, but low-signal without other findings
  • 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://trendybiz.in/usersfiles/file/fagamozufite.pdf In PDF document text
    • https://kassa-evotor.ru/wp-content/plugins/super-forms/uploads/php/files/9aqo5lcamuqvct93aokmif5t0u/69483413420.pdfIn PDF document text
    • https://aymsoft.us/aym_image/files/46957133528.pdfIn PDF document text
    • http://www.majoriscambio.com.br/wp-content/plugins/formcraft/file-upload/server/content/files/16082573aee159---91381251082.pdfIn PDF document text
    • https://ludifrance.fr/userfiles/file/xetemabejojipijatu.pdfIn PDF document text
    • http://files.ibiza-ferien.de/file/fusatexadal.pdfIn PDF document text
    • http://kfnmdg.com/upfolder/e/files/20210720072919.pdfIn PDF document text
    • https://gbeequestriansurfaces.com/wp-content/plugins/super-forms/uploads/php/files/s2fbk28s8moqur2s2urbceilee/43398736482.pdfIn PDF document text
    • https://firsatoyun.com/calisma2/files/uploads/faxixadimomu.pdfIn PDF document text
    • http://studionegrelli.it/userfiles/files/rixepaxu.pdfIn PDF document text
    • http://dabien.co.kr/wp-content/plugins/formcraft/file-upload/server/content/files/16090c883aeabd---zefubijug.pdfIn PDF document text
    • http://turinhotelcompany.com/userfiles/files/bixotag.pdfIn PDF document text
    • https://gruppopolidori.com/upload/image/file/37936085546.pdfIn PDF document text
    • http://www.barankayalar.com.tr/wp-content/plugins/formcraft/file-upload/server/content/files/160a90002ea7d9---mefasudifulokevija.pdfIn PDF document text
    • http://golfproradost.cz/webpagebuilder/ckfinder/userfiles/files/xotalikekusajop.pdfIn PDF document text
    • https://feedproxy.google.com/~r/skout/mBVl/~3/PmAiG5ZyT-k/uplcv?utm_term=neurological+physiotherapy+books+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_off00011666.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x11666 11216 bytes
SHA-256: 9c4401f4f51a1a532c83f454dc03da30a638cda220c52109796d5d940180a6d9
font_01_sfnt_off0001306e.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x1306E 16792 bytes
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1
font_02_sfnt_off00014880.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x14880 18088 bytes
SHA-256: 05c853dbaaf09b35152c9e2b2d02273711a17808d2126409b4b30553c3cd2c7a

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