Malicious PDF — malware analysis report

Static analysis result for SHA-256 3dd741b0a02b718e…

MALICIOUS

PDF

85.5 KB Created: 2021-07-13 20:06:11 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2026-06-25
MD5: 32cd585c7fd8528cefa1d7825a113646 SHA-1: 844373d69225fac338221dd782dc438446bc0f0c SHA-256: 3dd741b0a02b718e040ede95650cecce415b4a4e00807db70b675f63a8c420c0
156 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9951

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://inwebjor.ru/uplcv?utm_term=8+month+old+stimming PDF link annotation
    • http://cherriestattoo.com/ckfinder/userfiles/files/40696530998.pdfIn PDF document text
    • https://acp-luxusingatlanok.hu/ckfinder/userfiles/files/81095911566.pdfIn PDF document text
    • http://smartcookieacademy.com/wp-content/plugins/formcraft/file-upload/server/content/files/16075a6e8eb427---munenetif.pdfIn PDF document text
    • http://europeanprofservices.com/wp-content/plugins/formcraft/file-upload/server/content/files/16075cc52be6da---kekizetomilekimekan.pdfIn PDF document text
    • http://bakoca.hu/files/file/vugejogazimudamosape.pdfIn PDF document text
    • https://hophamthaibinh.com/upload/files/gavesipasewofodenijev.pdfIn PDF document text
    • http://hockeydh.com/files/ups/files/77885899741.pdfIn PDF document text
    • https://louvre.lv/res/wysiwyg/file/rutavimorakufifoxunas.pdfIn PDF document text
    • http://www.sphotobooth.com/wp-content/plugins/formcraft/file-upload/server/content/files/1606cf4c6725af---44484119344.pdfIn PDF document text
    • https://www.cedicar.com/wp-content/plugins/formcraft/file-upload/server/content/files/160bc54ff01cd0---bamixorolawom.pdfIn PDF document text
    • https://www.ideaklinikizmir.com/wp-content/plugins/formcraft/file-upload/server/content/files/16081e0fdc812a---gexuvow.pdfIn PDF document text
    • https://alignerco.com/wp-content/plugins/super-forms/uploads/php/files/45a7b39668a313f62d293e9c129bcb9d/27243567769.pdfIn PDF document text
    • https://ag-concept.ru/wp-content/plugins/super-forms/uploads/php/files/749d1591b1d45a42317075cc49ca17fa/43021263731.pdfIn PDF document text
    • http://sitoad.com/bbqjoekey/files/202106221942067833.pdfIn PDF document text
    • https://thejinglelab.com/wp-content/plugins/super-forms/uploads/php/files/3kus6dq0734vk1jt2sh6grm5cn/50081922504.pdfIn PDF document text
    • http://bouncebodysupplements.com/newerac2c/userfiles/file/21361554044.pdfIn PDF document text
    • https://www.kadeavenue.com/wp-content/plugins/super-forms/uploads/php/files/319503a639b004bae79a59454afba319/widuketigimilariwo.pdfIn PDF document text
    • https://aftaplan.com/works/peepsparty/html/upload_files/file/rasinosapadezatewedoxav.pdfIn PDF document text
    • http://dirabrealtors.com/wp-content/plugins/formcraft/file-upload/server/content/files/16072cc48c94e9---wekafotezudasavida.pdfIn PDF document text
    • https://wamsconference.com/wp-content/plugins/super-forms/uploads/php/files/a18154642f6777875b3ac76055d0d7b5/govepogosefanida.pdfIn PDF document text
    • http://asu.com.vn/wp-content/plugins/super-forms/uploads/php/files/hsek0unjvm93fp8ecm6vc529kb/jejoregadifebej.pdfIn PDF document text
    • https://aartipalette.com/userfiles/file/22139114392.pdfIn PDF document text
    • https://independentmusicleague.com/wp-content/plugins/super-forms/uploads/php/files/bc2905ed0d0af83ace2dbe6fa037b812/wovujanilabenigewuxeb.pdfIn PDF document text
    • https://heykidsletscook.info/wp-content/plugins/super-forms/uploads/php/files/5ef2bdbf40e22c0773ef9c98e994b7cb/96503048181.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_off0000ec99.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xEC99 16880 bytes
SHA-256: 351a8d7e394bfe78c18e14106416925e704c47964cc684a74cf6d3a512e8c566
font_01_sfnt_off00011887.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x11887 16792 bytes
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1
font_02_sfnt_off0001309e.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x1309E 10412 bytes
SHA-256: f9c2683b0d92d8fac9f783452d5a35f56c4005abd7855e72d3e7ad321d157e04