Malicious PDF — malware analysis report

Static analysis result for SHA-256 d632c9e58d1762ed…

MALICIOUS

PDF

113.3 KB Created: 2021-07-05 23:48:53 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2026-06-05
MD5: f93b637ae41068c90441aec22d72ad6a SHA-1: 1934ca7e7322949d0550cd5e15770bc543a03fe2 SHA-256: d632c9e58d1762ed18fb51cb7374390a4ae7656995ae6e872d0706fc13ba2ef4
156 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

This PDF file was flagged as malicious by ClamAV and an ML classifier. It contains numerous external URLs, many pointing to compromised WordPress upload directories, suggesting a link farm designed to redirect users to malicious content. The presence of these links indicates an attempt to leverage external resources for malicious purposes, likely phishing or malware delivery.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9948

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://oniceh.ru/uplcv?utm_term=unrebutted+affidavit+case+law PDF link annotation
    • http://braintradingbcn.com/wp-content/plugins/super-forms/uploads/php/files/b2d795a05067f662ace977952e9abd08/namegumigolasuxove.pdfIn PDF document text
    • http://agapetown.net/ckfinder/userfiles/files/dafanuxaxerijobewuwidivi.pdfIn PDF document text
    • https://canadianrelocation.net/wp-content/plugins/formcraft/file-upload/server/content/files/160ad50ea4fb90---wopulajomarajajavale.pdfIn PDF document text
    • http://winterwonderlandzundert.nl/uploadimages/files/16559229775.pdfIn PDF document text
    • http://www.veronicaneal.com/wp-content/plugins/formcraft/file-upload/server/content/files/1/16096da05afe67---jovulefofikegar.pdfIn PDF document text
    • https://prosegik.com/wp-content/plugins/super-forms/uploads/php/files/581a43e66bceb0347d0ff9050b183ce2/gasutapujaw.pdfIn PDF document text
    • http://allg-gyn.ch/userfiles/file/nutenawudotavisakakusasu.pdfIn PDF document text
    • https://www.harasportcenter.com/wp-content/plugins/super-forms/uploads/php/files/q0nugrjosnrohgt4dfukagaq1h/66130913817.pdfIn PDF document text
    • http://debandhelder.nl/ckfinder/userfiles/files/woxetajenamukonedo.pdfIn PDF document text
    • http://anapro.com/ckfinder/userfiles/files/73932754594.pdfIn PDF document text
    • http://aucoindeshalles.fr/menu/file/xelukede.pdfIn PDF document text
    • http://www.loockuniformes.com.br/home/wp-content/plugins/formcraft/file-upload/server/content/files/160ac1f427c663---84808057594.pdfIn PDF document text
    • https://swotin.com/wp-content/plugins/formcraft/file-upload/server/content/files/1607768ce5db0b---bomemum.pdfIn PDF document text
    • http://www.alquilerbares.com.ar/wp-content/plugins/formcraft/file-upload/server/content/files/1607d7e3bf085d---31415441998.pdfIn PDF document text
    • http://veterinariomauracotti.it/userfiles/files/sofukiza.pdfIn PDF document text
    • https://miamiuniquelimo.com/wp-content/plugins/formcraft/file-upload/server/content/files/1607bc0d14b91d---10473123745.pdfIn PDF document text
    • http://www.ncstarim.com.tr/wp-content/plugins/super-forms/uploads/php/files/vid8bbm269qtjc8ktfigkoknm6/wovomolatesakizowureseje.pdfIn PDF document text
    • https://miamivanservice.net/wp-content/plugins/formcraft/file-upload/server/content/files/160864e4a580c3---lezujigesetesemi.pdfIn PDF document text
    • https://www.ibyservice.com/wp-content/plugins/super-forms/uploads/php/files/fe7a4e4271497c9d2609345808f2daf5/2612365317.pdfIn PDF document text
    • http://orgue-chantepie.info/FCKeditor/upload/file/61835207324.pdfIn PDF document text
    • https://malimbe.africa/wp-content/plugins/super-forms/uploads/php/files/06cbfe30779c957867339ee9eeda8439/57309627203.pdfIn PDF document text
    • https://holzhaus-suedtirol.it/wp-content/plugins/formcraft/file-upload/server/content/files/160da21ec90c1c---nezalavixobezulewimovav.pdfIn PDF document text
    • https://nowbali.co.id/wp-content/plugins/formcraft/file-upload/server/content/files/16095f2af46654---75116413181.pdfIn PDF document text
    • https://gpuhub.net/wp-content/plugins/super-forms/uploads/php/files/8koidr6lrbe8trcb73nquuu71s/26987217020.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_off00015ac7.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x15AC7 16876 bytes
SHA-256: 131e52b8daedd6fc2e1d56564d7cfe73e4b7e37bed061fb37147baadf94d81c1
font_01_sfnt_off000186dc.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x186DC 10748 bytes
SHA-256: 0be20e6d9812de868f2700fe194c400530eac0592ebe73d16d3b3d630eccbeea
font_02_sfnt_off00019fc4.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x19FC4 16792 bytes
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1

Open this report in the interactive analyzer, or submit your own file for analysis.