Malicious PDF — malware analysis report

Static analysis result for SHA-256 f87410c7ac03e2fe…

MALICIOUS

PDF

85.0 KB Created: 2021-07-16 18:15:50 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2026-06-17
MD5: c8e9aae8c65ecf29db657101fbd7ff68 SHA-1: 8f3cc4c7c0c3bc66f4d955b47cdb342578f3ba32 SHA-256: f87410c7ac03e2fe03ce5a9ba50b7563ad59bebdf8592ae1bf2e97972cb10e90
164 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9964

Heuristics 7

  • 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.
  • 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://www.llgnjinc.com/wp-content/plugins/super-forms/uploads/php/files/6556f72550499b4e6dc2f686c4d02163/jipigegagijavugodivenuzes.pdf In PDF document text
    • http://phantasos.org/userfiles/file/rugududemu.pdfIn PDF document text
    • http://dgjst.com/upfile/file/47442784863.pdfIn PDF document text
    • http://themultifold.com/wp-content/plugins/super-forms/uploads/php/files/5urp55291rdodk88j0o7vg27k3/64554108096.pdfIn PDF document text
    • http://hellnocancershow.com/wp-content/plugins/formcraft/file-upload/server/content/files/16087628fa999f---46253100862.pdfIn PDF document text
    • http://fewo-spreewald-schoetzigk.de/brandenburgtag/img/editor/file/lipapogegugizow.pdfIn PDF document text
    • https://ystechpro.com/nbloom/fckuploads/file/6060908520.pdfIn PDF document text
    • http://www.wallisandemmanuel.com/wp-content/plugins/formcraft/file-upload/server/content/files/1606d2c1e4adef---vekijeranujatosopogapafus.pdfIn PDF document text
    • http://vattucongtrinh.com/userfiles/file/simow.pdfIn PDF document text
    • https://leunamgroup.com/wp-content/plugins/super-forms/uploads/php/files/065db3c9870c39900285826b23d9aac3/tiranuwosesatinowulexin.pdfIn PDF document text
    • http://classiccar-jp.com/js/upload/files/74888354270.pdfIn PDF document text
    • http://botanicgardenscafe.com.au/wp-content/plugins/formcraft/file-upload/server/content/files/1606c8fd3bda6b---jivomivar.pdfIn PDF document text
    • http://www.studiolegalefusimorelli.com/wp-content/plugins/formcraft/file-upload/server/content/files/160da4f2994f44---vubuzemarexiwudoxejejot.pdfIn PDF document text
    • https://bursakaynak.com/userfiles/file/fusibugimewiwuji.pdfIn PDF document text
    • http://goref.ru/files/file/xovaleroviwe.pdfIn PDF document text
    • https://mimpiindah2.com/contents//files/gesezovupifexunudivigixoz.pdfIn PDF document text
    • http://mesotects.com/wp-content/plugins/formcraft/file-upload/server/content/files/1607720ab4026d---90366500086.pdfIn PDF document text
    • http://pokorny-podlahy.cz/UserFiles/File/bofavivazelolepedosubi.pdfIn PDF document text
    • http://hoshitorionline.com/uploads/files/91727855590.pdfIn PDF document text
    • http://atya.eu/files/file/42953403124.pdfIn PDF document text
    • https://incoyun.com/calisma2/files/uploads/tesokimajesa.pdfIn PDF document text
    • https://action-roofing.com/wp-content/plugins/super-forms/uploads/php/files/6e8eda38ce42160992e79c2e2994ae6a/50536520254.pdfIn PDF document text
    • https://feedproxy.google.com/~r/skout/mBVl/~3/S30rS-6n6vg/uplcv?utm_term=dominant+and+recessive+traits+differencePDF 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_off0000e9db.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE9DB 16904 bytes
SHA-256: 36f05f92e9a00d60781ed08f996ebbd6939bf7f235c545e74a6fd16732ebf8a2
font_01_sfnt_off000115e5.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x115E5 16792 bytes
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1
font_02_sfnt_off00012dfc.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x12DFC 10660 bytes
SHA-256: 22dbc2f5b6c7c445aead8b80a7bb23c5a4f4484b183ff1aa3cc32fcfcdedf04d