Malicious PDF — malware analysis report

Static analysis result for SHA-256 414175ea617c0406…

MALICIOUS

PDF

87.1 KB Created: 2021-07-17 13:09:14 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2026-06-05
MD5: 37b7014323adba2a13366837df73b4ac SHA-1: a331e14c4ed45f1e9d922a754693f72611396730 SHA-256: 414175ea617c0406cf997ef5ad529e4b97a01296f83f36f247ab42264c179cc7
156 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1203 Exploitation for Client Execution

This PDF file was flagged by a machine learning classifier and ClamAV as malicious, specifically as a phishing trojan. It functions as a link farm, containing numerous URLs pointing to external resources, many of which are hosted on compromised or disposable domains. The primary purpose appears to be directing users to potentially malicious content or phishing sites, leveraging SEO techniques on compromised websites.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9952

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://solar-makernavi.com/ckfinder/userfiles/files/wowuximujo.pdf In PDF document text
    • http://architettoseneca.com/userfiles/files/17213962582.pdfIn PDF document text
    • https://readxyz.org/wp-content/plugins/super-forms/uploads/php/files/f798c4523c4191b01f9aa9c128f734ba/nosepogexewofukul.pdfIn PDF document text
    • http://bettynblue.com/upload/fck_img/20210619/file/muwakanadinobo.pdfIn PDF document text
    • http://bbpcosmetics.com/admin/upFiles/2021-5/file/84341098425.pdfIn PDF document text
    • http://iccj.jp/images/uploads/fckeditor/file/67514551471.pdfIn PDF document text
    • http://oilandgaswork.com/userfiles/file/roxowobowanexaza.pdfIn PDF document text
    • https://vinisfarm.com/wp-content/plugins/super-forms/uploads/php/files/f00a37fc39089dadd3e39e7ed2bd716b/71467535085.pdfIn PDF document text
    • https://floridaholidayplanner.com/wp-content/plugins/super-forms/uploads/php/files/9dc745e6ca3b6be56cf1e4ea571cca98/17111799438.pdfIn PDF document text
    • https://alamansyria.com/userfiles/file/gikamipalimixisi.pdfIn PDF document text
    • http://sjhrz.com/images/upload/File/23377324096.pdfIn PDF document text
    • https://sandzak.best/wp-content/plugins/super-forms/uploads/php/files/7266e208f383e705868172602ee7e010/pomikovomab.pdfIn PDF document text
    • https://www.cfo-search.com/wp-content/plugins/formcraft/file-upload/server/content/files/160803f21db3aa---tovasewenavak.pdfIn PDF document text
    • https://sporyolu.com/resimler/files/wafedosifis.pdfIn PDF document text
    • http://www.julitolaschools.com/wp-content/plugins/formcraft/file-upload/server/content/files/160a7f43d80c37---wigevates.pdfIn PDF document text
    • http://www.velkoobchod-man.eu/ckfinder/userfiles/files/dotovuzuweli.pdfIn PDF document text
    • http://www.onegelha.com/wp-content/plugins/super-forms/uploads/php/files/ee6eebf469e80d66aca5d24433a4fbda/5358632110.pdfIn PDF document text
    • http://mulherinscampground.com/clients/879992/File/47754205040.pdfIn PDF document text
    • http://nfc.soo.jp/file/40770388918.pdfIn PDF document text
    • http://www.mondzorgvesa-voorschoten.nl/wp-content/plugins/formcraft/file-upload/server/content/files/1607bfd4967737---4344999319.pdfIn PDF document text
    • https://www.infrascale.com/wp-content/plugins/super-forms/uploads/php/files/bf15c02d5ae16ce09a7966aac12fc299/xajetalopej.pdfIn PDF document text
    • https://stefandes.com/wp-content/plugins/formcraft/file-upload/server/content/files/1607df6a868f33---jewuzarejarako.pdfIn PDF document text
    • http://americanpetrochemicals.com/customers/CMS-IMAGES/file/degemaruwaxoradizo.pdfIn PDF document text
    • https://feedproxy.google.com/~r/1eyvgo/aqOO/~3/1KS0DP0cxss/uplcv?utm_term=what%27s+the+purpose+of+the+data+protection+actPDF 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_off0000ef52.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xEF52 17048 bytes
SHA-256: 50c96449cd5a0628ded0106c4eaff4640d5186973a681c07628f2c49ee22acae
font_01_sfnt_off00011bf6.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x11BF6 16792 bytes
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1
font_02_sfnt_off0001340d.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x1340D 10800 bytes
SHA-256: 23ced8e373c52717d45511670b8eb59abe4f98d5c38f359dbfdca12a9d30fdcc

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