Malicious PDF — malware analysis report

Static analysis result for SHA-256 425e676cab16da4c…

MALICIOUS

PDF

83.4 KB Created: 2021-08-27 22:43:48 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2026-06-15
MD5: a8f0bf05d43bc372aecc777c4ff9dc78 SHA-1: dc338df5e5ffc0f7a667cc67c74c524dd6fd407d SHA-256: 425e676cab16da4cc0ca9602c35fb32e4d0b8a1863d89a1069e71f69bef70765
156 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9984

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 http://www.mywil.ch/wp-content/plugins/formcraft/file-upload/server/content/files/1608678cdab0b8---9165974419.pdf In PDF document text
    • https://www.proctoloji.com/wp-content/plugins/formcraft/file-upload/server/content/files/16076942fcd5b2---wokinemil.pdfIn PDF document text
    • https://johanbjerke.se/userfiles/file/53396644273.pdfIn PDF document text
    • http://lukinserv.hu/file/40782765613.pdfIn PDF document text
    • https://www.alarisusallc.com/wp-content/plugins/super-forms/uploads/php/files/97de39cb35a0a598fa2c165e950c0daf/dapofex.pdfIn PDF document text
    • https://www.webhisto.com.tr/wp-content/plugins/formcraft/file-upload/server/content/files/160986f9d78934---nimefimuzusumafi.pdfIn PDF document text
    • https://lisacutler.com/wp-content/plugins/formcraft/file-upload/server/content/files/160b2d0456b3e9---93262219606.pdfIn PDF document text
    • http://70sromans.com/clients/871711/File/setopuganiz.pdfIn PDF document text
    • https://www.supremecaravans.com.au/application/third_party/ckfinder/userfiles/files/fimujupadefozi.pdfIn PDF document text
    • http://www.chubsorn.com/file/files/55690638740.pdfIn PDF document text
    • http://metzpaintings.com/wp-content/plugins/formcraft/file-upload/server/content/files/160c171a716df2---39873452077.pdfIn PDF document text
    • https://tanthuantelecom.com/upload/fck/file/ripirawimele.pdfIn PDF document text
    • https://pottoka.info/files/galeria/files/19421224331.pdfIn PDF document text
    • http://botosani.ro/img/uploads/file/somoduzewome.pdfIn PDF document text
    • http://detikakdeti.ru/img/file/jiwisabamabobimoxizan.pdfIn PDF document text
    • http://archi1919.com/smlclub-files/file/59491344831.pdfIn PDF document text
    • https://energooptima.hu/upload/File/9534012551.pdfIn PDF document text
    • http://webscape.co.bw/wp-content/plugins/formcraft/file-upload/server/content/files/160813e672fe2a---44303149146.pdfIn PDF document text
    • http://phatnang.com/media/ftp/file/40503730803.pdfIn PDF document text
    • http://boxerdapolenta.com/cmsimple/images/file/25429044542.pdfIn PDF document text
    • http://artechq8.com/beta/uploads/files/vakutibenitodinijo.pdfIn PDF document text
    • http://www.morenoroofing.com/wp-content/plugins/formcraft/file-upload/server/content/files/160a7620669aa1---nenijiwopoxonevakin.pdfIn PDF document text
    • https://bizdrive.nl/wp-content/plugins/formcraft/file-upload/server/content/files/1/16094124936949---98248193871.pdfIn PDF document text
    • http://www.neslihanonur.com/wp-content/plugins/super-forms/uploads/php/files/a75537bf5206e31ce86618306ae0e8b5/23158028685.pdfIn PDF document text
    • http://bestapp4u.com/admin/uploadedfiles/file/73164829271.pdfIn PDF document text
    • https://feedproxy.google.com/~r/Uplcv/~3/LPIa9PGmDLg/uplcv?utm_term=fourth+kalima+meaningPDF 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 4

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000cd93.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xCD93 22336 bytes
SHA-256: 65827f14c735482c3bfa38d880197201629584990f0cc364893b63e80a3a3a4e
font_01_sfnt_off000106da.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x106DA 16792 bytes
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1
font_02_sfnt_off00011ee7.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x11EE7 1680 bytes
SHA-256: 6c08887b596ecb472c5a0482df8c2f828d83fc5b5d16111ed0caa1fced1b35dc
font_03_sfnt_off000126e4.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x126E4 10556 bytes
SHA-256: 3c9732bc4d2d437ee72dc5b56b6243ebaee097e5cce0e3a0e7f4793da6e02ad0