Malicious PDF — malware analysis report

Static analysis result for SHA-256 1dc21df0f0f98c3e…

MALICIOUS

PDF

76.8 KB Created: 2021-09-12 16:50:42 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2026-05-30
MD5: 291a6da6f7426dff8d1572c69b9024dc SHA-1: 5841ca3fe4491ca171f624185a0bd9271e24c2b6 SHA-256: 1dc21df0f0f98c3efaabd2787a81613f66696ead07ff10a3da828a1e62bc93b5
156 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9908

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://telegid.tv/userfiles/file/pulefexomomugibivo.pdf In PDF document text
    • http://frutapacargentina.com/ckfinder/userfiles/files/4618145129.pdfIn PDF document text
    • https://monographie.com/ckfinder/userfiles/files/resexawi.pdfIn PDF document text
    • http://linkingpeople.info/userfiles/file/36323555146.pdfIn PDF document text
    • https://ketdoanbus.com/webroot/img/files/lunamomozifowaviwa.pdfIn PDF document text
    • http://mineraux-et-lithotherapie.fr/ckeditor/upload/files/16922515847.pdfIn PDF document text
    • http://kubablimel.pl/Image/files/xajolifokudigotifilinu.pdfIn PDF document text
    • http://abwingsjanaf.com/uploads/files/91426695705.pdfIn PDF document text
    • http://terezszilvia.com/images/uploaded/file/14692516417.pdfIn PDF document text
    • http://kawoka.com/userfiles/file/temunalojuniwubovewo.pdfIn PDF document text
    • http://stjconsulting.it/userfiles/files/dagidumowegobidepizu.pdfIn PDF document text
    • https://www.isnb.co.uk/wp-content/plugins/super-forms/uploads/php/files/727184033a1d005e96b11a856f96d64a/kawigedirusabupepifav.pdfIn PDF document text
    • http://techscreening.com/userfiles/files/zerivele.pdfIn PDF document text
    • https://sharzh-ufa.ru/wp-content/plugins/super-forms/uploads/php/files/dc9f60874a90897bedfff43838cfc7f4/14464811058.pdfIn PDF document text
    • https://selapro.com.au/application/third_party/ckfinder/userfiles/files/76551545740.pdfIn PDF document text
    • http://ephtour.com/FileData/ckfinder/files/20210901_98FF219FF014441F.pdfIn PDF document text
    • http://karthikeyanjayaram.com/userfiles/file/57100307331.pdfIn PDF document text
    • https://swotin.com/wp-content/plugins/formcraft/file-upload/server/content/files/1612fb395cd0ae---8222876376.pdfIn PDF document text
    • https://eltechma.com/zdjecia/fck/file/46790043897.pdfIn PDF document text
    • http://stlnsk.ru/uploads/file/zonezutazi.pdfIn PDF document text
    • http://www.rebranded.tv/wp-content/plugins/formcraft/file-upload/server/content/files/1613006aebf38f---89999297927.pdfIn PDF document text
    • https://quizai.com/uploads/files/29705269235.pdfIn PDF document text
    • https://rgcsmt.org/ckfinder/userfiles/files/femefexedojopojalalemati.pdfIn PDF document text
    • http://greenearthgardens.org/userfiles/84902165154.pdfIn PDF document text
    • https://floridahouselottery.com/test/userfiles/file/zakenusijobiwugogar.pdfIn PDF document text
    • http://lifecontinues.ru/images/files/fudapugusurinojijoxefer.pdfIn PDF document text
    • https://feedproxy.google.com/~r/skout/mBVl/~3/PmAiG5ZyT-k/uplcv?utm_term=light+headed+after+bending+overPDF 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_off0000c8bd.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xC8BD 17380 bytes
SHA-256: 2b84a23fecc21d1f768b810f51317f0c55ba57049627445d840c0afe98f94c0d
font_01_sfnt_off0000f58d.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF58D 16792 bytes
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1
font_02_sfnt_off00010da4.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x10DA4 10584 bytes
SHA-256: 5cbd943fd0fa9db246954cec1d94dfe0fd9267fec0c2a226430e8f0f4e8b3e22