Malicious PDF — malware analysis report

Static analysis result for SHA-256 425ad600e3ae27bf…

MALICIOUS

PDF

88.7 KB Created: 2021-08-11 19:03:24 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2026-06-15
MD5: e6b59005a243f9c110d56fefe6aec80d SHA-1: 0e8f804d7f7e1e9bdfc34a443c39fd6fa9ecf091 SHA-256: 425ad600e3ae27bf2b0dc55e60df59900681c77fd42d48a1cd676ab717e96772
156 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9990

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://www.cfo-search.com/wp-content/plugins/formcraft/file-upload/server/content/files/160d4328830a43---kewazuzil.pdf In PDF document text
    • http://chokmanee.com/userfiles/file/17356577622.pdfIn PDF document text
    • http://sonnenheizung.ch/fckeditor/editor/images/file/laxazosejaropivefi.pdfIn PDF document text
    • http://aberdeeneyes.co.uk/wp-content/plugins/formcraft/file-upload/server/content/files/160787dd388f78---52656542560.pdfIn PDF document text
    • https://plumcourse.com/wp-content/plugins/super-forms/uploads/php/files/d7fd6237ca8f570b1c5796bee2edf37e/61662475646.pdfIn PDF document text
    • https://daleplumbinginc.com/wp-content/plugins/super-forms/uploads/php/files/1b4ba967edc9494fe0e89c0d32059e7e/kusumawoxovumaf.pdfIn PDF document text
    • https://www.nosolodespedidas.es/wp-content/plugins/formcraft/file-upload/server/content/files/160a2282d9ff90---89911889040.pdfIn PDF document text
    • http://pandoreunion.com/clients/81456/File/dasole.pdfIn PDF document text
    • https://tylbm.com/Upload/ckeditor/files/niwojifetokewufe.pdfIn PDF document text
    • https://revapackers.com/wp-content/plugins/super-forms/uploads/php/files/55g80dqb6siac197o9b4saj9r1/mikamikuwun.pdfIn PDF document text
    • https://an-professional.ru/img/files/file/81312576158.pdfIn PDF document text
    • https://mujeresenmovimientoplus.com/userfiles/file/3853968179.pdfIn PDF document text
    • https://www.heainc.com/wp-content/plugins/formcraft/file-upload/server/content/files/160c14791183ad---luvozozasogadideferukab.pdfIn PDF document text
    • http://ckm-machinery.com/userfiles/files/83379403487.pdfIn PDF document text
    • http://actionelectric.pt/www/wp-content/plugins/formcraft/file-upload/server/content/files/160767bb2cb07a---36519175475.pdfIn PDF document text
    • https://luxmarketing.agency/wp-content/plugins/super-forms/uploads/php/files/7r685tp6qe4i4i2kcke4mmsafs/18569441812.pdfIn PDF document text
    • https://nuevocoach.co.uk/wp-content/plugins/super-forms/uploads/php/files/c8713e1bc2fb57c374f89af5049d3ac1/fixuwenemumilofoje.pdfIn PDF document text
    • https://www.q-jin.ne.jp/ckfinder/userfiles/files/96930930724.pdfIn PDF document text
    • http://vertinu.lt/ckfinder/userfiles/files/20778022834.pdfIn PDF document text
    • https://www.jemelectric.com/wp-content/plugins/formcraft/file-upload/server/content/files/160c292657e0fd---xozetawaxezotujokegapipex.pdfIn PDF document text
    • https://www.traveltimevipp.com/wp-content/plugins/super-forms/uploads/php/files/e2fc9c4a2891ef8d301d52b738412528/rowon.pdfIn PDF document text
    • http://www.gabrielamaciel.net/images/content/file/mibiwimobe.pdfIn PDF document text
    • https://www.olympusnorge.no/wp-content/plugins/super-forms/uploads/php/files/p9scdt6dfi8h9na3mgeh9p6s2e/59438924612.pdfIn PDF document text
    • https://www.simcoerecovery.net/wp-content/plugins/super-forms/uploads/php/files/4k76ekg6ppcmiu2p1o0spg8lnf/63678652089.pdfIn PDF document text
    • https://feedproxy.google.com/~r/Uplcv/~3/fzgW7-mxBc0/uplcv?utm_term=minoxidil+5+modo+de+uso+barbaPDF 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_off0000f6b2.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF6B2 17272 bytes
SHA-256: 027aef5131a458a491a41f85bd605af8fca129a6f05f17fc3c4e58b75c1be1c0
font_01_sfnt_off0001227b.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x1227B 10780 bytes
SHA-256: f524ecff3afdf8be3c9c570aebd88252062bb8dcbe78e8404354b46fe0b4fa18
font_02_sfnt_off00013b48.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x13B48 16792 bytes
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1