Malicious PDF — malware analysis report

Static analysis result for SHA-256 3ddcd7a3e6589abf…

MALICIOUS

PDF

99.2 KB Created: 2021-07-08 04:53:39 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2026-06-26
MD5: f94e33bf80062d92d6ced2bb65190b7c SHA-1: 086db0f525e31e1e282ecc6bda999a0fa9a7a8af SHA-256: 3ddcd7a3e6589abfd2559baa84b701e5d09b73b404702b2d664c3bc0c9ba67a0
156 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9922

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 http://mlkscholarshipsmilwaukee.org/clients/f/f0/f021f13c5c598389be7e913a1ae626ff/File/36558751688.pdf In PDF document text
    • https://xanbiente.de/userfiles/file/40681896974.pdfIn PDF document text
    • https://spherule.org/wp-content/plugins/super-forms/uploads/php/files/5a7d58982b8f0381065362ef92825ef6/veros.pdfIn PDF document text
    • http://sakirnoopo.ru/wp-content/plugins/super-forms/uploads/php/files/766e8492b5b1e68e4ea32bbac944c75a/tujogukuwogaxiv.pdfIn PDF document text
    • https://ballestermultiservicios.com/wp-content/plugins/formcraft/file-upload/server/content/files/16083c2253755b---239090002.pdfIn PDF document text
    • https://archcosmeticstudio.com.au/wp-content/plugins/super-forms/uploads/php/files/fb45a57bd8975e723638074584282001/26199038852.pdfIn PDF document text
    • https://homeaestheticsllc.com/wp-content/plugins/super-forms/uploads/php/files/76266581b62a6ea46a97d3fbd3e5f33a/govefenidibegojawaxebuj.pdfIn PDF document text
    • http://kahounova.cz/userfiles/file/sunetojonevu.pdfIn PDF document text
    • https://soudurelausiere.ca/upload/editor/file/74729321135.pdfIn PDF document text
    • https://husvagnsexpo.se/wp-content/plugins/formcraft/file-upload/server/content/files/160b875305f28e---zawawejeriziruga.pdfIn PDF document text
    • https://radmangroup-ye.com/rgfiles/file/98283527778.pdfIn PDF document text
    • http://vitanova-cattery.com/upload/file/zezewubexuba.pdfIn PDF document text
    • http://nutranghongngoc.com/media/ftp/file/jikexuzubudasas.pdfIn PDF document text
    • https://vestol.bg/files/file/96642905116.pdfIn PDF document text
    • http://erbilsunhotel.com/wp-content/plugins/super-forms/uploads/php/files/7uqkurt39d9m7gmsl2j36c95b3/6752340905.pdfIn PDF document text
    • https://fotofidelity.cz/userfiles/file/vuxij.pdfIn PDF document text
    • http://www.birapart.com/wp-content/plugins/formcraft/file-upload/server/content/files/1608b282f6524c---25164386126.pdfIn PDF document text
    • http://itaindustrial.com.br/wp-content/plugins/formcraft/file-upload/server/content/files/160c935df8d4b4---46215656404.pdfIn PDF document text
    • http://cuhs1981.com/clients/8/82/82ca37c076ec4232796cb58ed009bb3a/File/mimisanibinaserawu.pdfIn PDF document text
    • http://take114.kr/FileData/ckfinder/files/20210704_3496812AE4EAD93B.pdfIn PDF document text
    • http://vdadanang.vn/app/webroot/assets/files/56971556448.pdfIn PDF document text
    • https://protechlighting.com/wp-content/plugins/super-forms/uploads/php/files/c734f639a46559b1f1941e0c3beec39e/nadigamula.pdfIn PDF document text
    • http://extracam.es/app/webroot/arxius/file/53014694773.pdfIn PDF document text
    • http://naplesredeals.com/userfiles/files/piravegixisojaxexij.pdfIn PDF document text
    • https://advicezone.org.uk/wp-content/plugins/super-forms/uploads/php/files/jce8l8a38u32rka5g6dip7qc9d/27964166269.pdfIn PDF document text
    • https://feedproxy.google.com/~r/1eyvgo/aqOO/~3/1KS0DP0cxss/uplcv?utm_term=childhood+accidental+spiral+tibial+fracturePDF 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_off00012086.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x12086 16792 bytes
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1
font_01_sfnt_off00013898.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x13898 17552 bytes
SHA-256: 227435658d48ca3ae6b6e78f689354eb258ffb892327cd8ed13c1a467dda55b2
font_02_sfnt_off0001664c.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x1664C 10988 bytes
SHA-256: c5972a1cb21515352787e5e94c72945b404e8b7c41cb49dba0038e2e7c9f7c95