Malicious PDF — malware analysis report

Static analysis result for SHA-256 5d819f64476e289e…

MALICIOUS

PDF

83.6 KB Created: 2021-09-19 14:26:44 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2026-06-18
MD5: 53110327e711d3e1481262a7d987c42b SHA-1: 54d4f56927a87f820fd5aa521c6a352f97d7e48c SHA-256: 5d819f64476e289e37057173e4e94e6c5f01595820c29c020dca9549c7b37e96
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://allytemp.ru/uplcv?utm_term=altered+pokemon+rom+hack PDF link annotation
    • http://cesurmakina.com/userfiles/file/tabofuwepuri.pdfIn PDF document text
    • http://na-bytecek.cz/UserFiles/File/sukatugelidatenipozoxatab.pdfIn PDF document text
    • http://lnhaihui.com/userfiles/file/20210914002225_355513335.pdfIn PDF document text
    • https://mimpishio2.com/contents/files/73192181514.pdfIn PDF document text
    • https://eseninternational.com/uploads/files/filetejexa.pdfIn PDF document text
    • http://xpeedon.net/userfiles/file/20210913185409.pdfIn PDF document text
    • http://proficlim.ru/public/userfiles/file/wafapajavizurulojinam.pdfIn PDF document text
    • http://www.maderas-navarro.com/ckfinder/userfiles/files/petededinomenanajus.pdfIn PDF document text
    • http://fuyu.010bi.com/ckfinder/userfiles/files/ratekurujaw.pdfIn PDF document text
    • http://www.likoda.com.tw/upload/ckimg/files/dokuxerugifijo.pdfIn PDF document text
    • https://jewfri.kr/files/image/files/ketixigepiwizabixalo.pdfIn PDF document text
    • https://www.glasswindowequipment.com/wp-content/plugins/super-forms/uploads/php/files/241f0237bae1b0a61329654d712424ac/ganuwujaralatenarus.pdfIn PDF document text
    • http://hyundaidongdo3s.com/images/files/nuxisamipewekofim.pdfIn PDF document text
    • http://mgtuae.com/uploads/file/pitozowafujapozapuwogev.pdfIn PDF document text
    • https://99shayari.in/userfiles/files/44979865103.pdfIn PDF document text
    • https://www.opdrrustukalac.com/wp-content/plugins/formcraft/file-upload/server/content/files/161309a3125917---13316008194.pdfIn PDF document text
    • https://ashasuchikala.com/ckfinder/userfiles/files/40655709520.pdfIn PDF document text
    • http://familie-schiecke.de/images/file/10975259041.pdfIn PDF document text
    • https://agrotehholding.ru/wp-content/plugins/super-forms/uploads/php/files/b177b2f545009200442104ac3706c365/lamizegulonili.pdfIn PDF document text
    • http://trufeel.com/ckeditor/ckfinder/uploadfile/files/kapadajezu.pdfIn PDF document text
    • https://ms02bet.com/contents/files/6238217288.pdfIn PDF document text
    • http://adhunikjewellers.com/ckfinder/userfiles/files/24152682998.pdfIn PDF document text
    • https://www.sir.co.uk/wp-content/plugins/formcraft/file-upload/server/content/files/161351e1de01ac---89233318547.pdfIn PDF document text
    • http://asesoriagarpe.com/wp-content/plugins/formcraft/file-upload/server/content/files/1613b1e8b8528c---ligeluvipoludikug.pdfIn PDF document text
    • http://hkacca.com/userfiles/dajotowagajifosaladobupag.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_off0000dfb6.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xDFB6 10592 bytes
SHA-256: a35b5f84b22213fde18a23e18448f9caf589525817ea9122fb0804e982e615dd
font_01_sfnt_off0000f7b4.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF7B4 18960 bytes
SHA-256: 6737c01ddfd7e728d304c078ce064ab0fa072fec3c4559dcf5ff592baeb751c2
font_02_sfnt_off000128f4.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x128F4 16792 bytes
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1