Malicious PDF — malware analysis report

Static analysis result for SHA-256 4cdee02f5a6e0d73…

MALICIOUS

PDF

80.4 KB Created: 2021-10-13 19:05:26 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2026-07-15
MD5: ed0fac641c3d718330f4527a3030023d SHA-1: 3261eb4e3176caaf2671c2fcc7c087c8cdb5a345 SHA-256: 4cdee02f5a6e0d7339a96745dccccafd87cb9dc4884ff457471caaec5a241f7c
134 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9949

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
  • 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.
  • Urgency / deadline lure low SE_URGENCY_LURE
    Document contains urgency or deadline language ('account will be terminated', 'action required within 24 hours', etc.) — useful context, but low-signal without other findings
  • 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://apmnir.ro/fckfiles/file/47813841300.pdf In PDF document text
    • http://fanghsin.com/uploads/files/202110012132492250.pdfIn PDF document text
    • http://de.ruben.pl/ckfinder/userfiles/files/51283568366.pdfIn PDF document text
    • https://patriciobanados.cl/upload/file/In PDF document text
    • https://ateneoarbonaida.com/wp-content/plugins/formcraft/file-upload/server/content/files/16135f860a3b81---25790470347.pdfIn PDF document text
    • https://tungafilm.com/dorceiys/ckfinder/userfiles/files/refotuzinu.pdfIn PDF document text
    • https://ohligschlaeger-berger.de/wp-content/plugins/formcraft/file-upload/server/content/files/16140d6cec1807---naxizorubovelosodo.pdfIn PDF document text
    • http://slsnn.ru/content/files/8858545138.pdfIn PDF document text
    • http://xn--h1agcmh.com/ckfinder/userfiles/files/xemuvabufubujupumivumelu.pdfIn PDF document text
    • https://phuquiland.com/upload/files/gomonesezubibono.pdfIn PDF document text
    • http://quartierdete.fr/uploads/fckeditor/file/7554331475.pdfIn PDF document text
    • http://eurekaelearning.com/upload/news/file/lutinuxolosoniv.pdfIn PDF document text
    • http://greenegiving.aboutgiving.net/sites/default/files/editor/file/nomip.pdfIn PDF document text
    • http://quangphong.vn/uploads/image/files/37057612758.pdfIn PDF document text
    • http://clickvay.com/upload/files/20174454378.pdfIn PDF document text
    • http://www.tobywells.org/media/fckdir/file/67227589602.pdfIn PDF document text
    • https://inprovituruguay.com/ckfinder/userfiles/files/loxufapepegag.pdfIn PDF document text
    • http://xn----7sbbbizu2bxaod.xn--p1ai/userfiles/file/gogovenigule.pdfIn PDF document text
    • http://gomsuhoangminh.com/app/webroot/uploads/files/rowebirazo.pdfIn PDF document text
    • http://mamitobe.ru/files/file/90897755913.pdfIn PDF document text
    • http://chukysovin.com/img-svc/files/fizezapivabuw.pdfIn PDF document text
    • https://foodexgida.com/uploads/files/lorusesuriwe.pdfIn PDF document text
    • http://kfnmsz.com/upfolder/e/files/20211006160946.pdfIn PDF document text
    • https://limblength-sldf.com/userfiles/file/1807183440.pdfIn PDF document text
    • http://hoya-system.com/uploads/files/202110090537448768.pdfIn PDF document text
    • http://feedproxy.google.com/~r/MbOu/~3/cmwvf4RlXg4/uplcv?utm_term=dental+quiz+questions+and+answersPDF 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 extracted file (font_00_sfnt_off0000d4ed.bin)
    • http://dejavu.sourceforge.net/wiki/index.php/LicenseIn extracted file (font_00_sfnt_off0000d4ed.bin)

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000d4ed.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xD4ED 10632 bytes
SHA-256: 95353a9cdda226048c52aed7130c534860b51c4c121fa1488c7eb88f78dcf73b
font_01_sfnt_off0000ed45.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xED45 18132 bytes
SHA-256: 8753e843d00541c64ececa6c8025a065ec5d25dd8ccd5f6b24c2968b9a9201d1
font_02_sfnt_off00011c13.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x11C13 16792 bytes
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1