Malicious PDF — malware analysis report

Static analysis result for SHA-256 4259ec055b1ce50f…

MALICIOUS

PDF

70.4 KB Created: 2022-04-17 15:47:26 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2026-06-15
MD5: fa3348f5a034ff6a8be865f6549ecd86 SHA-1: f2c3eb3bcd2a4d0e3c91f8ce1ee8c2cdb5796302 SHA-256: 4259ec055b1ce50f379819aec58181da66e8a3cc8538bbd07c61c1ce347c6661
156 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9992

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://lovig.co.za/YmrXLWy8?keyword=junji%20ito%20art%20book%20viz PDF link annotation
    • http://rubivina.com/Images_upload/files/17310737146.pdfIn PDF document text
    • http://kaufdeinauto.de/wp-content/plugins/formcraft/file-upload/server/content/files/1623b389ec01dc---67548390025.pdfIn PDF document text
    • https://mabatuba.weebly.com/uploads/1/3/5/3/135303696/9520160.pdfIn PDF document text
    • https://ijestr.com/ckfinder/userfiles/files/10768494877.pdfIn PDF document text
    • http://pbwi.com.pl/admin/kcfinder/upload/files/44985722622.pdfIn PDF document text
    • https://fozejabaf.weebly.com/uploads/1/3/5/3/135305581/tipidubejanifoze.pdfIn PDF document text
    • http://www.emporiocaritaspisa.it/wordpress/wp-content/plugins/formcraft/file-upload/server/content/files/1623ac47cdeac5---43975818145.pdfIn PDF document text
    • https://bopexetijajab.weebly.com/uploads/1/3/1/4/131411078/jekavuxa.pdfIn PDF document text
    • http://semanbio.com/upload/files/dazijarugiwabop.pdfIn PDF document text
    • https://www.growxponential.com/wp-content/plugins/super-forms/uploads/php/files/oqe277b2cuib6caobsjeplako3/37247031362.pdfIn PDF document text
    • http://solo-reisen.com/media/images/file/42800052399.pdfIn PDF document text
    • https://www.potterycommercials.co.uk/wp-content/plugins/formcraft/file-upload/server/content/files/1621440bd29c4d---gafazumoxi.pdfIn PDF document text
    • https://pujatafar.weebly.com/uploads/1/3/4/8/134854232/fabudux_mupiwiv_tewab_vuzorak.pdfIn PDF document text
    • http://donghobaoan.com/uploads/files/96334343427.pdfIn PDF document text
    • https://suwovobibanojo.weebly.com/uploads/1/4/1/2/141258457/5225919.pdfIn PDF document text
    • http://duythuc-bearing.vn/uploads/userfiles/file/3302363519.pdfIn PDF document text
    • https://surigogalabilix.weebly.com/uploads/1/3/5/9/135961506/9ea3e8185150ac.pdfIn PDF document text
    • https://rimuzunij.weebly.com/uploads/1/3/4/0/134095873/6121247.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_off0000aeb0.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xAEB0 17788 bytes
SHA-256: 5d8acd34e25737d2baf5a4efac6d73482f3a0b86cd2eefb046bf23c703713380
font_01_sfnt_off0000dd00.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xDD00 16792 bytes
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1
font_02_sfnt_off0000f517.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF517 10332 bytes
SHA-256: 1986b53353fbe8032c9c61e62bed15bdf7b90b1500dd5f44c5136abf56a1aa65

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