Malicious PDF — malware analysis report

Static analysis result for SHA-256 cd7532a1ff5858a6…

MALICIOUS

PDF

96.7 KB Created: 2021-08-02 02:00:51 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2026-06-18
MD5: 4ac8f1b193afde16bceb64dd0a80c108 SHA-1: abe288ae7b9d36b9e2141c06721d9222705231a2 SHA-256: cd7532a1ff5858a6aa09acd12ef9c04192f3187744df0cbe78160286b86d1b37
156 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9975

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=dr+bertram+kaplan+memphis+tn+poplar PDF link annotation
    • http://www.nbrownies.com.br/wp-content/plugins/formcraft/file-upload/server/content/files/160c2afb399230---74039813452.pdfIn PDF document text
    • http://cunningham-reunion.com/clients/7/73/7399477c88ef979e1ad3ac38e42cffcc/File/rasokalekisune.pdfIn PDF document text
    • https://clinicamanila.com/ckfinder/userfiles/files/82090048690.pdfIn PDF document text
    • http://makesomenoise.hu/upload/file/57753835541.pdfIn PDF document text
    • http://pansophers.com/wp-content/plugins/formcraft/file-upload/server/content/files/160e922ec4631b---38309704981.pdfIn PDF document text
    • https://www.areatransfers.com/wp-content/plugins/formcraft/file-upload/server/content/files/1607b547e79bee---menumibixalika.pdfIn PDF document text
    • http://www.chatanakonci.cz/userfiles/file/raraxofefasijazugi.pdfIn PDF document text
    • http://zawayakw.com/wp-content/plugins/formcraft/file-upload/server/content/files/1606e5527a8bae---romorewo.pdfIn PDF document text
    • https://www.westcountrystoves.co.uk/wp-content/plugins/super-forms/uploads/php/files/858ea708990ec21ade9305f2c07855aa/kexisevidufanas.pdfIn PDF document text
    • https://www.cukoyem.com.tr/wp-content/plugins/super-forms/uploads/php/files/gdirb2q74krsbg11f5k59r2ka0/xifaji.pdfIn PDF document text
    • https://sharenkon.com/files/926095117.pdfIn PDF document text
    • https://cleaner.pl/userfiles/file/89936324733.pdfIn PDF document text
    • http://salonorganica.ru/upload/files/4787914388.pdfIn PDF document text
    • http://edwardlankin.com/clients/86087/File/17450296748.pdfIn PDF document text
    • http://be1971.com/clients/a/a1/a19be2fc4cf8b198b52f296748481ce5/File/gibubapivebox.pdfIn PDF document text
    • http://grandchainfamilyfoundation.org/clients/85333/File/wegutinibuwiwo.pdfIn PDF document text
    • http://stallingreunion.com/clients/a/a3/a37dbb3dca22f8cb40f44de83fe48269/File/vetetoziwenabutelivu.pdfIn PDF document text
    • http://07-3739589.com/CKEdit/upload/files/82612631856.pdfIn PDF document text
    • http://bajcsidavidfoto.com/_user/file/xugerigejutosob.pdfIn PDF document text
    • http://coinproject.com/userfiles/image/file/84643140560.pdfIn PDF document text
    • http://mmckno2010.zkosuchdol.info/files/lodorodajilo.pdfIn PDF document text
    • https://codecs.roimages/file/vevabirumufosonod.pdfIn PDF document text
    • http://nuraski.pl/wsg/userfiles/suwakebusa.pdfIn PDF document text
    • http://jamoncup.es/wp-content/plugins/formcraft/file-upload/server/content/files/1607282dcdb304---99850133545.pdfIn PDF document text
    • http://saamfactory.com/wp-content/plugins/super-forms/uploads/php/files/b290a8f454a19c1e57b79aa9e54c529b/weraronep.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_off00011900.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x11900 16316 bytes
SHA-256: 4cfce565e334677f66041b66fc77a263c454a971af22e39b4d8d8672013502a0
font_01_sfnt_off0001433a.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x1433A 16792 bytes
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1
font_02_sfnt_off00015b51.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x15B51 10748 bytes
SHA-256: f701c72236fe8894b7a240db598b025418779a617e2d2fc6a3888b0e4d4876bf