Malicious PDF — malware analysis report

Static analysis result for SHA-256 3dd3dd0bcd174549…

MALICIOUS

PDF

81.7 KB Created: 2021-08-29 19:55:17 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2026-06-26
MD5: 9d95005333eb3c8d53333e0e080a70dc SHA-1: 674c0b2c007c540634300fbb99d7db3f9772ffe5 SHA-256: 3dd3dd0bcd174549cb081b94c684360cc8e35ebe730d062208c2a8f090b0c7e1
156 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9986

Heuristics 6

  • 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.
  • 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://crystal-lamp.ru/uploads/files/80519063422.pdf In PDF document text
    • https://fenixfalt.com/userfiles/file/80681910197.pdfIn PDF document text
    • https://destockbaby.com/ckfinder/userfiles/files/62577852799.pdfIn PDF document text
    • http://agnieszkapawlik.com/userfiles/file/bajekozon.pdfIn PDF document text
    • https://belgradenightlife.info/wp-content/plugins/super-forms/uploads/php/files/un7e290fg0mqd9kc50ac64utlq/38938465163.pdfIn PDF document text
    • https://led7.ru/file/79409603237.pdfIn PDF document text
    • https://www.phuketvillarentalandservices.com/ckfinder/userfiles/files/zivepebenejanukidisenos.pdfIn PDF document text
    • https://vicotelecom.vn/static/source/images/file/52442705996.pdfIn PDF document text
    • http://inlikeflintlogistics.com/wp-content/plugins/formcraft/file-upload/server/content/files/1608ce2f27453e---dixulubo.pdfIn PDF document text
    • https://alphacleanwashing.com/wp-content/plugins/super-forms/uploads/php/files/b3876f2c26441b86766a8e00939398ff/9845078704.pdfIn PDF document text
    • http://cellesekorea.com/ckupload/files/dufomesoserewawegijadute.pdfIn PDF document text
    • https://www.explosivo.gr/wp-content/plugins/super-forms/uploads/php/files/52adc3cc2a5186b68a743c3cbb09e933/xulegekemebuxewetaros.pdfIn PDF document text
    • https://skyfireconsulting.com/wp-content/plugins/super-forms/uploads/php/files/5lc4v6hgokmjn24dbb67h8aj6r/30349864044.pdfIn PDF document text
    • http://cohn-vossen.com/wp-content/plugins/formcraft/file-upload/server/content/files/1608fd975747d3---93317738808.pdfIn PDF document text
    • http://lighthouse-connection.at/myPix/file/xulumadekupiduwadijo.pdfIn PDF document text
    • https://renesens21.com/ressources/upload/files/14756929783.pdfIn PDF document text
    • http://mfplus.ba/wp-content/plugins/formcraft/file-upload/server/content/files/160dc7c5535eac---jelonepafu.pdfIn PDF document text
    • https://mimpiindah88.com/contents//files/71382881237.pdfIn PDF document text
    • https://snoman.mb.ca/ckfinder/userfiles/files/gogitali.pdfIn PDF document text
    • https://cor.org.ar/wp-content/plugins/super-forms/uploads/php/files/7lmg5a7c6s76o3ls7q9b8kbhhm/3645887575.pdfIn PDF document text
    • http://aarogyamedico.com/userfiles/file/58986981467.pdfIn PDF document text
    • https://mobilieroccasion.fr/uploads/file/wamid.pdfIn PDF document text
    • http://ros.by/ckfinder/userfiles/files/60412724889.pdfIn PDF document text
    • https://wccia-vastu.com/wp-content/plugins/super-forms/uploads/php/files/d91d9e99f2b9201aeef310a9d6c3b7f8/daxobaxoxukururari.pdfIn PDF document text
    • https://feedproxy.google.com/~r/skout/mBVl/~3/PmAiG5ZyT-k/uplcv?utm_term=how+to+introduce+yourself+on+phone+interviewPDF 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_off0000d8ae.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xD8AE 17708 bytes
SHA-256: f0d0d2b8514d845a8bdd42d8bb406f4c3d3ea5654a2ec592a46ffe33b5efe939
font_01_sfnt_off000106a3.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x106A3 16792 bytes
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1
font_02_sfnt_off00011eba.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x11EBA 10912 bytes
SHA-256: 1591474b96e2ae7424261937e37679daef7377be2eb3395b72851ff7d75bfda7