Malicious PDF — malware analysis report

Static analysis result for SHA-256 3ddc1a16cef4e626…

MALICIOUS

PDF

89.7 KB Created: 2021-09-01 12:12:33 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2026-06-26
MD5: ffe21184d32da9588d83f4ac7deeae4d SHA-1: bdecab90df7209ccaf8f17905e0cb472d1194c0c SHA-256: 3ddc1a16cef4e62639fadcbf55774892d1b58a8c8a3ab8900bd658f24ff996b5
156 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9974

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://earthchartercities.org/wp-content/plugins/formcraft/file-upload/server/content/files/160bfc2f21968a---dirixibunapatadobijivowor.pdf In PDF document text
    • http://alemotta.com/resources/original/file/22225209384.pdfIn PDF document text
    • http://imreelectric.sk/uploads/file/figanaguwuzowizoxazakuv.pdfIn PDF document text
    • http://tries.cz/media/images/upload/file/56342014431.pdfIn PDF document text
    • https://protradingindia.net/userfiles/file/71504934951.pdfIn PDF document text
    • http://goldway.jp/upload/board/file/mavafubexuvubirixubiza.pdfIn PDF document text
    • https://anmimar.com/royal/userfiles/file/meriferejomar.pdfIn PDF document text
    • http://helenhotel.vn/upload/files/damoribujimaso.pdfIn PDF document text
    • https://jaunimodienos.lt/wp-content/plugins/super-forms/uploads/php/files/8lu4gk9172dcrf18p5eqek6jt6/filitevokijureva.pdfIn PDF document text
    • https://flycam.com.tr/wp-content/plugins/formcraft/file-upload/server/content/files/1609a6acc156d4---xuxemakimowanoko.pdfIn PDF document text
    • http://mirembeestate.co.ug/wp-content/plugins/formcraft/file-upload/server/content/files/160eca6b18f096---60241316327.pdfIn PDF document text
    • http://www.danvillern.com/wp-content/plugins/super-forms/uploads/php/files/nmnbc34i8vhsp237aqag3fsff4/vodevorami.pdfIn PDF document text
    • http://hilltoplancers1975.com/clients/13753/File/kidejilasezojobatefep.pdfIn PDF document text
    • https://vinasimex.com/uploads/file/xopidenuwurogop.pdfIn PDF document text
    • http://files.ibiza-ferien.de/file/75882321048.pdfIn PDF document text
    • http://www.bestlifepolicy.co.uk/wp-content/plugins/formcraft/file-upload/server/content/files/160abeba0e320f---tazimazalolapofe.pdfIn PDF document text
    • https://primeodontorj.com/wp-content/plugins/super-forms/uploads/php/files/7bbba003d5fc80e99a69df658c3391af/96016107424.pdfIn PDF document text
    • http://www.web-globus.de/ckfinder/userfiles/files/labopuzapewobivubi.pdfIn PDF document text
    • http://aarogyamedico.com/userfiles/file/69127127555.pdfIn PDF document text
    • http://www.drop-lok.com/wp-content/plugins/formcraft/file-upload/server/content/files/160a3db53b96f4---juzuwipefakonedijeve.pdfIn PDF document text
    • https://www.qbuildsoftware.com/wp-content/plugins/super-forms/uploads/php/files/4473121973066dbac4f137c1827890ad/34050221076.pdfIn PDF document text
    • http://bjoybrands.com/wp-content/plugins/formcraft/file-upload/server/content/files/160cef533461f0---xixogofozo.pdfIn PDF document text
    • http://entiambalaj.com/upload/file/mowenaruxefudomi.pdfIn PDF document text
    • https://feedproxy.google.com/~r/1eyvgo/aqOO/~3/Om9ozkHLxGw/uplcv?utm_term=according+to+our+conversation+over+the+phonePDF 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_off0000f9f5.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF9F5 16792 bytes
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1
font_01_sfnt_off0001120c.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x1120C 10896 bytes
SHA-256: cb40e36ccbc9266d0cc50aff94e760357c1486c4d01efd95f66e2b2d8d7556af
font_02_sfnt_off00012b0b.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x12B0B 17808 bytes
SHA-256: b93c51f80e29cbcce571bdbbb5173e9afcb0496c6e97ce450f4e879d158e190a