Malicious PDF — malware analysis report

Static analysis result for SHA-256 af25a2c6e1cded28…

MALICIOUS

PDF

78.5 KB Created: 2021-11-20 02:45:53 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2026-06-22
MD5: 3689a52d14b0c9e0e4145667880a7dac SHA-1: 8bfc932c8e1e787f935fe64f8aa81a010a787325 SHA-256: af25a2c6e1cded28fdac08038620181bb8f594739c7525330f91608206e3ad84
156 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9975

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://pixomot.ru/uplcv?utm_term=apostle+spoons+meaning PDF link annotation
    • http://sevinctekstil.com/resimler/files/wiwotegu.pdfIn PDF document text
    • https://europawindow.com/app/webroot/img/main_content/files/vatotukag.pdfIn PDF document text
    • http://kurskodkb.ru/page_edit/_samples/userfiles/files/92382248890.pdfIn PDF document text
    • http://mail-business.ru/uploads/file/neruwu.pdfIn PDF document text
    • http://lehnerkom.de/images/uploaded/file/2862557544.pdfIn PDF document text
    • http://jar-ted.pl/file/ropajatila.pdfIn PDF document text
    • https://sikdercollegeofpharmacy.com/scp/ckfinder/uploads/userfiles/files/bigaxa.pdfIn PDF document text
    • https://akrmedia.no/ckfinder/userfiles/files/jidofokezoxozixerap.pdfIn PDF document text
    • http://makaeximworld.com/wp-content/plugins/formcraft/file-upload/server/content/files/1615e3ca4539db---92215089878.pdfIn PDF document text
    • http://totalfinance.ca/wp-content/plugins/formcraft/file-upload/server/content/files/16143caba1e7ee---55959721692.pdfIn PDF document text
    • http://choinka4x4.org/cms/files/file/mititojumakuj.pdfIn PDF document text
    • https://dansobentre.net/uploads/file/xepepije.pdfIn PDF document text
    • http://special-pharma.com/upload/files/womoxowexalaponudemag.pdfIn PDF document text
    • http://yuhuimachinery.com/d/files/42299133819.pdfIn PDF document text
    • http://techscreening.com/userfiles/files/boguluzewuminonu.pdfIn PDF document text
    • http://www.whirlpool-beachcomber.at/wp-content/plugins/formcraft/file-upload/server/content/files/16163b0e558284---pulatiroki.pdfIn PDF document text
    • http://zoltysnieg.pl/pliki_wyswig/files/petimaj.pdfIn PDF document text
    • https://cursosadistanciayonline.com/medios/files/67717448251.pdfIn PDF document text
    • http://spadhotel.com/basefile/spadhotelcom/files/tegiruguxeloxixogepox.pdfIn PDF document text
    • http://touchpanelpro.com/upload/files/36725145914.pdfIn PDF document text
    • https://cananalimdar.com/wp-content/plugins/super-forms/uploads/php/files/pbq0lerjesm5ta2rn6o8jfvptt/52011325730.pdfIn PDF document text
    • http://amtusa.com/wp-content/plugins/formcraft/file-upload/server/content/files/16144be1f377fc---sibaxeso.pdfIn PDF document text
    • https://webhosting4.net/media/file/83430395835.pdfIn PDF document text
    • http://klimatyzacjaradom.pl/userfiles/file/likexagilopil.pdfIn PDF document text
    • http://meteoratourismactivities.com/files/files/8195357315.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_off0000ce54.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xCE54 16416 bytes
SHA-256: cfa2c3fbce80cc5607e01af033b793d17c57c214fb1d96e845eedea48cccd336
font_01_sfnt_off0000e4f8.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE4F8 10476 bytes
SHA-256: 53df5b4ca959591b1df067daee4e621b85cf9eb408c68376d4baafdecf98fd88
font_02_sfnt_off0000fcc8.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xFCC8 18160 bytes
SHA-256: c37f146346fde0ac876cbe32a46e318880c9cdcdcad4133f7a670cd0e08f1c9b