Malicious PDF — malware analysis report

Static analysis result for SHA-256 4e3fd014d084da97…

MALICIOUS

PDF

104.8 KB Created: 2021-10-25 08:56:40 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2026-06-19
MD5: 2cacd3e37abca85d640cce2392b8c7d9 SHA-1: 313629537261acb0b9e4d8f577c758dc0eb095fd SHA-256: 4e3fd014d084da9779e3c7a55de8bfd1dd5f543896c643d2aad7068403ad1c32
156 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9931

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://aasghsflqsae.handylover.com/upload/files/vupesulakewekofasixudugi.pdf In PDF document text
    • http://veiligheidssloten.nl/ckfinder/userfiles/files/42851673931.pdfIn PDF document text
    • https://ibrahimkoc.com/images/Media/files/duvovesigarimutovisifil.pdfIn PDF document text
    • https://lnpro.in/ckfinder/userfiles/files/40279699080.pdfIn PDF document text
    • http://olympiad-bigben.ru/ckfinder/userfiles/files/jijubilerofusodi.pdfIn PDF document text
    • http://hightopeducation.com/cms_uploaded/file/84245256839.pdfIn PDF document text
    • https://genesisbehaviorcenter.com/wp-content/plugins/super-forms/uploads/php/files/d68357ffff964e414393459eeab409d2/wobeginamilupakezonina.pdfIn PDF document text
    • http://stfurnimart.com/file_media/file_image/file/rexusegegubuxe.pdfIn PDF document text
    • http://decentlogistics.pk/survey/userfiles/files/62318871518.pdfIn PDF document text
    • https://tutorbolivia.com/userfiles/file/zelilivugubilibex.pdfIn PDF document text
    • http://trungtinjsc.vn/upload/FCK/file/99732950933.pdfIn PDF document text
    • https://dutchfansitenetwork.nl/ckfinder/userfiles/files/70612437106.pdfIn PDF document text
    • http://uniondeautoescuelas.com/wp-content/plugins/formcraft/file-upload/server/content/files/1615703ab75026---vigixurodusojuxiwojemigu.pdfIn PDF document text
    • http://autokolcsonzoszolnok.hu/admin/fck_upload/file/pigitasizufapin.pdfIn PDF document text
    • https://retake.dk/ckfinder/userfiles/files/kejisasipezaxomikifuxebo.pdfIn PDF document text
    • https://portalbime.com/UploadedFiles/New/file/nuxaturoroputazum.pdfIn PDF document text
    • https://humanistbeauty.com/wp-content/plugins/super-forms/uploads/php/files/mp7kgqgqlunb62ptuqk6u5jega/41436422304.pdfIn PDF document text
    • http://stroyindustry.com/userfiles/file/89492100245.pdfIn PDF document text
    • https://trucraftsmanship.com/wp-content/plugins/formcraft/file-upload/server/content/files/16144d51326b19---45744180047.pdfIn PDF document text
    • http://noxsun.com/jingkelun/userfiles/files/20210907174746.pdfIn PDF document text
    • http://streathamtaxi.com/survey/userfiles/files/fewekonidukadokajejogisap.pdfIn PDF document text
    • http://compie.ru/wp-content/plugins/formcraft/file-upload/server/content/files/161467eca037d7---gajetasojiwomimenizogu.pdfIn PDF document text
    • http://fmdscu.net/userfiles/file/jevijufanitapekepife.pdfIn PDF document text
    • http://vietsonplastic.com/uploads/userfiles/file/88890005668.pdfIn PDF document text
    • http://dlzj.net/upload/files/20210917020956762597.pdfIn PDF document text
    • https://www.baust.edu.bd/app/webroot/ckfinder/userfiles/files/musabu.pdfIn PDF document text
    • http://feedproxy.google.com/~r/Xvkpad/~3/oscUj7J0Gjw/uplcv?utm_term=philosophical+reflection+examplePDF 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_off000135e5.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x135E5 17672 bytes
SHA-256: caaad19e92d718c0a7f81dfc84c3ac90b34f4686374a954330fa4ac479c6005d
font_01_sfnt_off00016417.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x16417 10848 bytes
SHA-256: d2c9813af227fdfb992e20287730752e2a899bae613ce7ba0a152b4af112b97f
font_02_sfnt_off00017d00.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x17D00 16792 bytes
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1