Malicious PDF — malware analysis report

Static analysis result for SHA-256 72b854b514ae279b…

MALICIOUS

PDF

84.4 KB Created: 2021-11-02 16:23:01 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2026-06-28
MD5: d5d730cbf4ef49848fade1d828434106 SHA-1: 4c48526494fd1d38863e4c0cdc76d630ba41f3a8 SHA-256: 72b854b514ae279b84f7036ba08ff7bdffa58e57c58230d6bae886de64d16e01
156 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9974

Heuristics 6

  • ClamAV: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0
  • 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://samavetpharm.com/userfiles/files/49535164438.pdf In PDF document text
    • http://abbeytraining.net/userfiles/file/53155049648.pdfIn PDF document text
    • https://cartolmania.it/file/mukika.pdfIn PDF document text
    • https://pioneerlift.com/upfiles/editor/files/vefevelora.pdfIn PDF document text
    • https://susta.vn/userfiles/file/dakaxeronarawizunazem.pdfIn PDF document text
    • https://indiantiffin4me.com/nbloom/fckuploads/file/tiwokujigaguziron.pdfIn PDF document text
    • http://etnorom.hu/pictures/sitobe.pdfIn PDF document text
    • http://creationart.hu/files/file/jewowemigamafenefovoguko.pdfIn PDF document text
    • http://willbramephotography.com/lakopu.pdfIn PDF document text
    • https://www.groupe-coelho.fr/ckfinder/userfiles/files/javatobedoridokajelasat.pdfIn PDF document text
    • http://emeraldcovepartners.com/_data/images/file/71928296920.pdfIn PDF document text
    • http://avon-bratislava.com/files/files/7226424252.pdfIn PDF document text
    • https://sailstudy.in/ckfinder/userfiles/files/fitimisuf.pdfIn PDF document text
    • https://amigo-shop.105h.net/upload/files/42190975140.pdfIn PDF document text
    • http://cistenivytahu.cz/upload/file/sakilaseva.pdfIn PDF document text
    • http://zamgph.com/FCKeditor/editor/filemanager/connectors/php/uploads/file/260756272954.pdfIn PDF document text
    • https://toliveinchristjesus.ceosale.catholic.edu.au/application/third_party/ckfinder/userfiles/files/ziwirurakulusunigamupova.pdfIn PDF document text
    • http://opalbiosciences.com/wp-content/plugins/formcraft/file-upload/server/content/files/161468d83d576b---54849636650.pdfIn PDF document text
    • http://zhongkerb.com/userfiles/file/gasevenojirij.pdfIn PDF document text
    • https://guclupin.com/calisma2/files/uploads/labipabum.pdfIn PDF document text
    • http://montpellier-businessplan.fr/mbp/upload/images/images/upload/ckfinder/modobig.pdfIn PDF document text
    • http://www.hypnotiseur.com/wp-content/plugins/formcraft/file-upload/server/content/files/1616aa69206214---tumibofigawusadox.pdfIn PDF document text
    • http://materialdeestudo.top/userfiles/files/6641624775.pdfIn PDF document text
    • http://a-range.ru/wp-content/plugins/formcraft/file-upload/server/content/files/1613d29b264f77---8934706036.pdfIn PDF document text
    • http://feedproxy.google.com/~r/MbOu/~3/cmwvf4RlXg4/uplcv?utm_term=let+it+go+literary+devicesPDF 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_off0000dfb1.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xDFB1 10580 bytes
SHA-256: ac05ff5f2a6116c0197be853b4cd23e38104b7ad9e590fde21726edc9575137e
font_01_sfnt_off0000f7c7.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF7C7 19632 bytes
SHA-256: 9a4f5e6e53a5820752bd28991e801dff7b541154a61b1e5449fa096f3bcd7db5
font_02_sfnt_off00012a62.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x12A62 16792 bytes
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1