Malicious PDF — malware analysis report

Static analysis result for SHA-256 f2f5e976b8ab6118…

MALICIOUS

PDF

71.3 KB Created: 2021-05-25 06:35:31 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-06-13
MD5: 2db5fb1e3d5931d110006cbb5b001b54 SHA-1: 016fcca2dc61ba200cd9f59f07da89509d102585 SHA-256: f2f5e976b8ab61181e698f29396a685a9f115499d0272242ee45198a8a9149b4
156 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9998

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.audioclinica.pt/wp-content/plugins/super-forms/uploads/php/files/u6m5gkbargqn814mq4jjtrg6th/vuvunu.pdf In PDF document text
    • http://www.investing-in-women.com/wp-content/plugins/formcraft/file-upload/server/content/files/160999393c331a---4128115856.pdfIn PDF document text
    • https://hotelritariccione.it/wp-content/plugins/formcraft/file-upload/server/content/files/1607ffbb4b8b0f---sewepefiretosajub.pdfIn PDF document text
    • http://polymer-optix.de/userfiles/file/jemuka.pdfIn PDF document text
    • http://zawayakw.com/wp-content/plugins/formcraft/file-upload/server/content/files/16087fb9ea2c35---masopiwamujomal.pdfIn PDF document text
    • http://www.champcaregivers.com/wp-content/plugins/formcraft/file-upload/server/content/files/160aa442680050---43242988512.pdfIn PDF document text
    • https://otelnamore.com/wp-content/plugins/super-forms/uploads/php/files/71dc31bab96a8d45bf248aeb1efdd833/13323930144.pdfIn PDF document text
    • https://ahi.com.ua/wp-content/plugins/super-forms/uploads/php/files/978d055552619b5749b967f01b140219/bozulubemopugulo.pdfIn PDF document text
    • https://www.allterra.group/wp-content/plugins/super-forms/uploads/php/files/483100162ed1ffc84d170ea4191d7613/26664538937.pdfIn PDF document text
    • http://angelcabrera.com/FCKfiles/file/34013848635.pdfIn PDF document text
    • http://aep-tc.com/cache/fck_files/file/33161738874.pdfIn PDF document text
    • https://pluckywize.com/wp-content/plugins/formcraft/file-upload/server/content/files/1606f033f51bb2---kifikikegigare.pdfIn PDF document text
    • https://fieldofgreen.com/wp-content/plugins/super-forms/uploads/php/files/8b5a21505a69e7b51324bcfdc5265bd4/30129175804.pdfIn PDF document text
    • https://www.davidcosz.de/wp-content/plugins/super-forms/uploads/php/files/e199lqv172t4js4icen7tq69qa/valebetipuni.pdfIn PDF document text
    • http://hpworld.hu/data/pic/Image/file/xetavenabajubewa.pdfIn PDF document text
    • http://gagutp.com/sa_upload/userfiles/file/20210523060056.pdfIn PDF document text
    • https://caravanandre.it/wp-content/plugins/super-forms/uploads/php/files/ff8decad18d07fedb87d2fd86104a07e/simifegefuxuvukimulo.pdfIn PDF document text
    • https://akdenizokullari.k12.tr/wp-content/plugins/super-forms/uploads/php/files/il24su993dnuj3h2e63kk8quo9/bibepofodasarivako.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • https://feedproxy.google.com/~r/1eyvgo/aqOO/~3/LPIa9PGmDLg/uplcv?utm_term=appsc+group+1+prelims+previous+papers+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://scripts.sil.org/OFLIn PDF document text

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000d9cc.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xD9CC 5576 bytes
SHA-256: 0d256dd555aede2cd1095ce13a3f74f0295208502891a73a21ab22b420ed71d6
font_01_sfnt_off0000ecbd.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xECBD 10316 bytes
SHA-256: 9b51e5f9ca9e027e0e0575f56cabb4a2997508f9242ecdd8773becaa4d94ea94