Malicious PDF — malware analysis report

Static analysis result for SHA-256 782115ec4e3cafb0…

MALICIOUS

PDF

80.6 KB Created: 2021-08-19 20:15:47 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2026-06-16
MD5: e621e6c2bd462bb6e420eba940a9d82d SHA-1: 1b45185cb0412e76352ad3d6ff5019837e3deea6 SHA-256: 782115ec4e3cafb0b514db5c18f86d5816cdb8218ed0ca3f49d3b6a35adfecb8
156 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9981

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://ketchas.ru/uplcv?utm_term=psychology+david+myers+7th+edition+pdf PDF link annotation
    • https://bindazzled.com.au/wp-content/plugins/super-forms/uploads/php/files/296b4b19c57082f7a2ec324825eca3d2/16396272405.pdfIn PDF document text
    • https://earthchartercities.org/wp-content/plugins/formcraft/file-upload/server/content/files/160a3315225dea---33976829169.pdfIn PDF document text
    • http://studiolorenzoni.eu/userfiles/files/64674326175.pdfIn PDF document text
    • https://empylean.com/wp-content/plugins/super-forms/uploads/php/files/snqm1vig9i50l12cerlkajqvod/muridivir.pdfIn PDF document text
    • https://lasvegasrebath.com/wp-content/plugins/super-forms/uploads/php/files/c5bd46ce2b7139b4462f3721021292d7/22146595696.pdfIn PDF document text
    • http://rioairporttransfer.com/ckfinder/userfiles/files/mubaloniroxevib.pdfIn PDF document text
    • https://banghenails.com/upload/file/81563974459.pdfIn PDF document text
    • http://plkorea77.com/ckupload/files/14402169288.pdfIn PDF document text
    • http://reclameindex.nl/images/uploads/33329435884.pdfIn PDF document text
    • http://keifo.ru/ckfinder/userfiles/files/demutofatebimorunulox.pdfIn PDF document text
    • http://uyaviation.com/wp-content/plugins/formcraft/file-upload/server/content/files/160b2e50e53ac9---bejifekemi.pdfIn PDF document text
    • https://www.kunapak.com/wp-content/plugins/super-forms/uploads/php/files/fd8e79v5gp69ikc2n53j3mvhdp/mobowodamagilamigo.pdfIn PDF document text
    • http://rogo-rotterdam.nl/files/78201252760.pdfIn PDF document text
    • http://csa.china-led.net/static/editor/ckeditor/ckfinder/upfile/files/27437829285.pdfIn PDF document text
    • http://rubensova16.cz/files/file/kunasewogaruwosumu.pdfIn PDF document text
    • http://traktorpulling.de/ablage/userfiles/files/83679754501.pdfIn PDF document text
    • http://vasvaripalmuzeum.hu/upload/file/28789913140.pdfIn PDF document text
    • https://amirep.com/wp-content/plugins/super-forms/uploads/php/files/575be2735a2c908291fe0dc2ac16cacd/xatixufufivewulolofipewob.pdfIn PDF document text
    • http://multiseal.com.ph/wp-content/plugins/formcraft/file-upload/server/content/files/1608d8587c6df9---27713253303.pdfIn PDF document text
    • https://gearforfree.com/wp-content/plugins/super-forms/uploads/php/files/s03bp6gtjrstl2b57u0vhs9d5v/79693148933.pdfIn PDF document text
    • http://www.icodar.com/wp-content/plugins/formcraft/file-upload/server/content/files/160e703c59295d---71436074654.pdfIn PDF document text
    • https://kidneystonetreatment.in/userfiles/files/gogabegulewob.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_off0000d5a0.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xD5A0 16792 bytes
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1
font_01_sfnt_off0000edb2.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xEDB2 16508 bytes
SHA-256: 165895841d7773c40e0e95d04d4331d142b9eca46506c8437a4e2d65672d0dc5
font_02_sfnt_off000118bb.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x118BB 11300 bytes
SHA-256: 667ce5eeefa3062fe777126efa6e14c721c182172f6ca69fefda67e9a0444cc4