Malicious PDF — malware analysis report

Static analysis result for SHA-256 d3ecf0e6b4bf0425…

MALICIOUS

PDF

82.6 KB Created: 2021-06-29 01:44:34 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2026-06-21
MD5: 3de70769a9abf07e29878d099caf3706 SHA-1: 33500bfd0b6b7ed20d9bcc67b58643f5b9a7813f SHA-256: d3ecf0e6b4bf0425b3c77c23a89bb1e05da86690f9514482173024ec83560b68
156 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9955

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://inwebjor.ru/uplcv?utm_term=ethical+conduct+meaning PDF link annotation
    • http://modelkyujin.com/wp-content/plugins/formcraft/file-upload/server/content/files/160985d79f2329---togegunakuwizin.pdfIn PDF document text
    • http://www.urbanwaterways.info/files/22739303485.pdfIn PDF document text
    • https://www.saenger-ohg.de/wp-content/plugins/formcraft/file-upload/server/content/files/160c89dff6706a---jelawa.pdfIn PDF document text
    • https://micast.de/wp-content/plugins/super-forms/uploads/php/files/2kh6sg1b5mobl5raph1ct47r4f/wasivulub.pdfIn PDF document text
    • https://humble-brag.com/wp-content/plugins/super-forms/uploads/php/files/jh05fpaq9mtp3n6unnrmpm8qso/lezunaze.pdfIn PDF document text
    • http://www.asslar.de/downloads/pixoxoxetaxerikopofileram.pdfIn PDF document text
    • http://xiaohecollege.com/d/files/nuwofesemudo.pdfIn PDF document text
    • https://esteticarcare.com/wp-content/plugins/super-forms/uploads/php/files/3bbbdc7af723f4bc46550e265e2fef6d/wolasuvele.pdfIn PDF document text
    • https://www.kbstephens.com/wp-content/plugins/super-forms/uploads/php/files/9d9d1d62d6ae35e383dd51bd9298333e/32150825639.pdfIn PDF document text
    • http://solamsys.com/userData/board/file/negejoletukiguxotiviwe.pdfIn PDF document text
    • http://www.consorcio.edu.pe/wp-content/plugins/formcraft/file-upload/server/content/files/160703bb2538a6---53457955848.pdfIn PDF document text
    • http://msslink.ru/userfiles/files/latewedowixidobeg.pdfIn PDF document text
    • https://best-turbos.com/wp-content/plugins/super-forms/uploads/php/files/5a8d6d56155eb6cd8a31be20f55fa064/duwobukoriroxabatuma.pdfIn PDF document text
    • http://allasclub.com/campannas/file/22781316464.pdfIn PDF document text
    • https://www.rogierstoel.nl/wp-content/plugins/super-forms/uploads/php/files/pcfbtp8kgded30hjg77mr001fe/nopujijudasunuk.pdfIn PDF document text
    • http://www.mywil.ch/wp-content/plugins/formcraft/file-upload/server/content/files/16079e147448eb---84705645443.pdfIn PDF document text
    • http://www.hcibatiment.fr/wp-content/plugins/formcraft/file-upload/server/content/files/1607086d9babdb---84548707060.pdfIn PDF document text
    • https://empylean.com/wp-content/plugins/super-forms/uploads/php/files/rq61cu56otoka85rge615i3sg2/93042046344.pdfIn PDF document text
    • https://rmissio.pl/wp-content/plugins/formcraft/file-upload/server/content/files/1609b0d7b6248f---kitaximupaka.pdfIn PDF document text
    • https://area34.info/wp-content/plugins/super-forms/uploads/php/files/i1if179b3b40v2vf94qmhk8s62/jevolatasobegumiwawob.pdfIn PDF document text
    • http://jamesirvinewedding.com/clients/f/f9/f947a18657f5d77a8fcd192ffd4ccf25/File/laxuleze.pdfIn PDF document text
    • http://cedresarquitectura.com/wp-content/plugins/formcraft/file-upload/server/content/files/160b9517f34b36---napoluwutatagawigexaf.pdfIn PDF document text
    • http://glenbrooksouth1970.com/clients/1/17/17fc1bd13d5538a69f39d58c869d2fc5/File/zibevegewi.pdfIn PDF document text
    • http://webcertain.net/contentupload/fckeditorUploads/organization_/file/69303479773.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_off0000e5e9.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE5E9 15508 bytes
SHA-256: f4cdfecc998be780e8df203af12a8d14755edb3a887b61b3d5c449fe02eaa22c
font_01_sfnt_off00010d6a.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x10D6A 16792 bytes
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1
font_02_sfnt_off00012581.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x12581 10632 bytes
SHA-256: d0a8215b97e1e178011f7b7436ba6a3a229938aa214aa0b65928fec2c44daf59