Malicious PDF — malware analysis report

Static analysis result for SHA-256 793c82ee7dd64d6b…

MALICIOUS

PDF

69.1 KB Created: 2021-10-03 09:55:58 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2026-06-15
MD5: 4dea0a521021e358f26cf8e43a64ab3d SHA-1: c64edf7779b9f86ade3c8fa879fa0c03e38cc594 SHA-256: 793c82ee7dd64d6b515d1fef79ee7cd22a079d26f185154e4674bd30c5bb721e
154 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9962

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
  • 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.
  • QR-code redirect lure medium SE_QR_LURE
    Document instructs the user to scan a QR code with a phone — consistent with QR phishing, but also common in legitimate documents
  • 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 https://krisoc.ru/uplcv?utm_term=kindness+for+weakness+song PDF link annotation
    • https://htfcompact.com/wp-content/plugins/super-forms/uploads/php/files/c76594a67bd5a1600b92604f0b27f89e/37610740793.pdfIn PDF document text
    • http://wernitznigg.at/files/15266974693.pdfIn PDF document text
    • https://reaga.net/js/ckfinder/userfiles/files/gadijexilake.pdfIn PDF document text
    • http://alanaf.ru/userfiles/files/somujujipotuselupafibeleg.pdfIn PDF document text
    • http://wmsone.com/eimages/file/nujoxubinonawomab.pdfIn PDF document text
    • http://kesherisrael.com/uploadEditor/files/77839917114.pdfIn PDF document text
    • http://clinivetmadonnadirosa.eu/userfiles/files/bakugamurozaxuvosilem.pdfIn PDF document text
    • http://pokwuttibut.com/file_media/file_image/file/sepivuxalemusawe.pdfIn PDF document text
    • http://longarmquiltacademy.net/fckeditor/userfiles/file/sopizera.pdfIn PDF document text
    • http://lejuriste.ru/files/file/77530274950.pdfIn PDF document text
    • http://leasingtowers.com/ckfinder/userfiles/files/39781613116.pdfIn PDF document text
    • https://onutglen.com/caningest/images/file/70088469465.pdfIn PDF document text
    • http://aerotechgroup.ru/img/outer/files/26388364808.pdfIn PDF document text
    • http://vasa-project.org/fckupload/file/putivanuvabisadavidad.pdfIn PDF document text
    • http://szamosiszerviz.hu/feltoltott/files/dapevixis.pdfIn PDF document text
    • http://villa-margherita.biz/userfiles/files/51430998748.pdfIn PDF document text
    • https://militarynetwork.ca/wp-content/plugins/formcraft/file-upload/server/content/files/16143b24e64dcf---74333996415.pdfIn PDF document text
    • http://tnslib.su/userfiles/files/38552828110.pdfIn PDF document text
    • http://ipceurope.be/assets/file/8287794839.pdfIn PDF document text
    • http://avvocatoandreabruschi.it/userfiles/files/girusobenobu.pdfIn PDF document text
    • https://burstallconrad.com/editor_files/file/tememulixizupejosuzizuw.pdfIn PDF document text
    • http://rayocazar.com/images/elfinder-1.1/files/file/69978284809.pdfIn PDF document text
    • http://zgkimsteszew.pl/img/upload/files/36338757836.pdfIn PDF document text
    • https://psychologgia.pl/Upload/file/rixajawugapalafu.pdfIn PDF document text
    • http://lltsg.com/uploadfile/file///2021092918345723.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_off0000b006.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xB006 16792 bytes
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1
font_01_sfnt_off0000c81d.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xC81D 10552 bytes
SHA-256: 0f6cd004e0f17b1f7885bed864dd4f8085d5a9a0e700960324ec561d224cb0bc
font_02_sfnt_off0000e01a.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE01A 15324 bytes
SHA-256: f309c08bc059c410e8e60a6ea928a50e1f31df0806ebb807a91c426a968dfb33

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