Malicious PDF — malware analysis report

Static analysis result for SHA-256 782f77f8f29bd57b…

MALICIOUS

PDF

78.5 KB Created: 2021-09-15 13:28:43 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2026-06-16
MD5: 6c7dec6ed34f234abedb518e0b319667 SHA-1: 635919e25f6e664ad37d7ee95a2b759508d23f2e SHA-256: 782f77f8f29bd57b1635d14a5f3d15c61fbfb5ba40fe63b83d239a692b9ffcf1
164 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9846

Heuristics 7

  • ClamAV: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0
  • 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.
  • Embedded JS stream low PDF_JS
    PDF references a /JS stream. Generic JavaScript is common in benign forms; specific dangerous APIs are scored by separate rules.
  • 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 http://mdsalon.ru/img/lib/file/70726402625.pdf In PDF document text
    • http://temple.mo/userfiles/file/mukenurovafobavomile.pdfIn PDF document text
    • http://albarossa.jp/js/upload/files/35187567125.pdfIn PDF document text
    • http://pavcargo.ru/wp-content/plugins/super-forms/uploads/php/files/845c94d4df5fff5ac500ce60a2e2b82a/pefopomopurilixive.pdfIn PDF document text
    • https://mavismanagement.com/wp-content/plugins/formcraft/file-upload/server/content/files/1613710d085ccb---wudisawow.pdfIn PDF document text
    • http://abwgulfport.com/uploads/files/40190992732.pdfIn PDF document text
    • https://leciv.fr/uploads/FCK_files/file/todinugoso.pdfIn PDF document text
    • http://giteduguedesboires.fr/userfiles/file/jasikalovofetijitakig.pdfIn PDF document text
    • https://www.tessilgiada.it/wp-content/plugins/formcraft/file-upload/server/content/files/16137996d17466---rafexuzakekuk.pdfIn PDF document text
    • http://www.peritaonline.es/ckfinder/userfiles/files/91976067383.pdfIn PDF document text
    • http://www.airportlimofortlauderdale.net/wp-content/plugins/formcraft/file-upload/server/content/files/1613cfe1ca4e1b---40104510490.pdfIn PDF document text
    • http://stauarchitetti.eu/userfiles/files/zimituwiw.pdfIn PDF document text
    • http://allegroescrow.com/wp-content/plugins/formcraft/file-upload/server/content/files/1613da5b22f01d---77074951905.pdfIn PDF document text
    • http://borik.customreal.sk/data/files/dufijeg.pdfIn PDF document text
    • http://tavaszitura.eu/userfiles/files/jumomivupupafenejodo.pdfIn PDF document text
    • https://abss.pt/userfiles/file/27338837158.pdfIn PDF document text
    • http://musicfriend.vn/public/default/ckeditor/files/23370628883.pdfIn PDF document text
    • https://gsacademy.ge/uploads/files/fezofijede.pdfIn PDF document text
    • http://bangtaisay.com/uploads/userfiles/file/vaxofizapakukefuwuvu.pdfIn PDF document text
    • https://censcakmu.org/board/file/files/27771202562.pdfIn PDF document text
    • https://uaqbakery.com/wp-content/plugins/formcraft/file-upload/server/content/files/161370ff9078e0---6324215403.pdfIn PDF document text
    • http://derp74.fooden.com/UserFiles/files/93321722218.pdfIn PDF document text
    • http://eastcity.hu/ufiles/file/fesopojesewimoketa.pdfIn PDF document text
    • http://trivio.it/userfiles/files/sesikakovebu.pdfIn PDF document text
    • https://www.studioline.ie/ckfinder/userfiles/files/tonipinemalem.pdfIn PDF document text
    • http://ceramvetro.net/userfiles/file/miwezasulavirifilujoti.pdfIn PDF document text
    • https://feedproxy.google.com/~r/Uplcv/~3/Om9ozkHLxGw/uplcv?utm_term=why+is+my+phone+saying+safe+modePDF 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://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_off0000ccae.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xCCAE 16792 bytes
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1
font_01_sfnt_off0000e4c5.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE4C5 10808 bytes
SHA-256: afcb3c215b260feb8ce86064facf93ffb1174aca8f4e7d41c7ce0542f23d67c4
font_02_sfnt_off0000fd49.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xFD49 18336 bytes
SHA-256: 1065a983e3f71e88e65080f7cde034b16104b13a284d95f05c989e742190a1eb