Malicious PDF — malware analysis report

Static analysis result for SHA-256 4250727745791ecc…

MALICIOUS

PDF

91.4 KB Created: 2021-07-02 01:41:45 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2026-06-15
MD5: 06a4b6cf5fc2ec2422a8e19748921253 SHA-1: f3a0b2dbf9c2c160b03f3c68b2722aee51a31c7c SHA-256: 4250727745791eccc13f3868177e912aebfad4e35e1c4afc25be260278a35ca3
156 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9941

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://infrive.ru/uplcv?utm_term=acute+angle+is+what+degree PDF link annotation
    • http://agcslohian.com/userfiles/file/fokodox.pdfIn PDF document text
    • https://www.adcgrain.com/wp-content/plugins/super-forms/uploads/php/files/5f53f3f37deb6f7150e7c4295f6a98d9/98006141791.pdfIn PDF document text
    • https://accu-split.com/userfiles/files/lelodufexisoxu.pdfIn PDF document text
    • https://studio45.live/wp-content/plugins/super-forms/uploads/php/files/547p8o6630hdk6cossum2534u5/59218410181.pdfIn PDF document text
    • http://irina-beha.com/ckfinder/userfiles/files/ponasedagoza.pdfIn PDF document text
    • http://kaufdeinauto.de/wp-content/plugins/formcraft/file-upload/server/content/files/1607f22774f556---83538978266.pdfIn PDF document text
    • http://aprendanow.com/wp-content/plugins/super-forms/uploads/php/files/b595c3f9d6fb1a6f24e5f5fbd0496d8c/17251321206.pdfIn PDF document text
    • https://damsindia.org/admin/uploads/file/81607239327.pdfIn PDF document text
    • https://fieldofgreen.com/wp-content/plugins/super-forms/uploads/php/files/655e6f8e56f64c918d1f10f16669b292/milujexajimutomofuwal.pdfIn PDF document text
    • http://airlineclassof66reunion.com/clients/c/cb/cb51827d251551eca15067b3b23580a4/File/daponaf.pdfIn PDF document text
    • https://basisnomor.com/contents//files/48671490324.pdfIn PDF document text
    • http://uspeh-kursk.ru/ckfinder/userfiles/files/pobofomu.pdfIn PDF document text
    • https://hpx.com.ua/wp-content/plugins/super-forms/uploads/php/files/9f7a1e35a50f2e101bac702701bba66e/7009990905.pdfIn PDF document text
    • https://nepalipublisher.com/ckfinder/userfiles/files/19872855676.pdfIn PDF document text
    • http://averon.ca/wp-content/plugins/formcraft/file-upload/server/content/files/160749638a1801---biwulogagofuzofarirep.pdfIn PDF document text
    • https://aspirans.com/files/file/95424708000.pdfIn PDF document text
    • https://my-natural-style.net/upload/files/56817728136.pdfIn PDF document text
    • http://www.barankayalar.com.tr/wp-content/plugins/formcraft/file-upload/server/content/files/160dd9ef1d9a1d---4284519637.pdfIn PDF document text
    • http://geology.ie/wp-content/plugins/formcraft/file-upload/server/content/files/16071136d5f66a---34936677542.pdfIn PDF document text
    • http://archiprojektai.lt/app/webroot/uploads/userfiles/files/lepuvekusuferigojolamiz.pdfIn PDF document text
    • https://jamurgoreng.net/contents//files/poxomugovutoduv.pdfIn PDF document text
    • https://www.popcaffe.it/wp-content/plugins/super-forms/uploads/php/files/00a46956fd6d1f26e0f2d7a868fa2234/watapisisegopagulu.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 4

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000e622.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE622 18864 bytes
SHA-256: da91b095671ff0e47e529bdd1983ef7e9f6cece4cea57906b2dc855e3423d7a2
font_01_sfnt_off000117df.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x117DF 16764 bytes
SHA-256: 4259ca0d7f9336d760f5882c4527f0a37afc9a1ed0d8eb0abf7a6f2591062db9
font_02_sfnt_off00012f87.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x12F87 16792 bytes
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1
font_03_sfnt_off0001479e.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x1479E 10696 bytes
SHA-256: e0c80d082098c65c306836a0b05b301f0a08e2ae333cff7b055641f49bec0aa6