Malicious PDF — malware analysis report

Static analysis result for SHA-256 793de1e418322aa5…

MALICIOUS

PDF

124.7 KB Created: 2021-06-10 08:14:10 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-06-15
MD5: 880f88b3eb57f60a1a1bd8bfdfd9db7c SHA-1: 5431f3e2381c2596e511fd586a1e857b3ef3bfd0 SHA-256: 793de1e418322aa50408fd8fb9fe4094899175c35a1d64ed8bc75dba470a7d21
156 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9999

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://huntic.ru/uplcv?utm_term=data+structures+and+algorithms+in+java+pdf+robert+lafore PDF link annotation
    • https://ifacemount.com/wp-content/plugins/super-forms/uploads/php/files/104u814km63rrbq3f4oeqg3jqf/gejane.pdfIn PDF document text
    • https://goldengrowers.com/wp-content/plugins/super-forms/uploads/php/files/7ed1ddf9ca881bf0851d26e49a6d7c36/90611748095.pdfIn PDF document text
    • https://feriaesotericadeatocha.com/wp-content/plugins/formcraft/file-upload/server/content/files/160874e3e6dda8---49657882990.pdfIn PDF document text
    • https://lightingsystemscol.com/wp-content/plugins/super-forms/uploads/php/files/def0dd77b230105910de5b870d4d8bde/15442597946.pdfIn PDF document text
    • http://sl-light.ru/design/img/upload/file/mominenovowagejezisij.pdfIn PDF document text
    • http://aksaaydinlatma.com/img/editor/image/file/lenekebasusijabus.pdfIn PDF document text
    • https://kindliving.org/wp-content/plugins/super-forms/uploads/php/files/tmp/digalizoboxufadezu.pdfIn PDF document text
    • https://www.certificagreen.com/wp-content/plugins/formcraft/file-upload/server/content/files/160c1289cb4485---20692944020.pdfIn PDF document text
    • https://refour.dk/wp-content/plugins/super-forms/uploads/php/files/5b2c5f62fe6875babf89d3328f5cb202/77688622725.pdfIn PDF document text
    • http://bezpieczna-strefa.pl/wp-content/plugins/super-forms/uploads/php/files/36f522ee0a306757f1654aafe5dc7feb/tarozivumakinifimijim.pdfIn PDF document text
    • https://xn--1--8kcai1ck2bs.xn--p1ai/wp-content/plugins/super-forms/uploads/php/files/a1cd85dcd7992ada771ed320e2107d03/kekatunoridagezunexed.pdfIn PDF document text
    • https://arvikabc.com/images/uploadedimages/file/7254521634.pdfIn PDF document text
    • http://moyamoya.center/images/hand_uploaded/files/detesanegetigewiwupibuxi.pdfIn PDF document text
    • https://wita.lt/images/files/tivagikuvow.pdfIn PDF document text
    • http://reszke.pl/fckeditor/editor/filemanager/connectors/php/file/lapuxunosariliduma.pdfIn PDF document text
    • https://ceadersvalet.com/wp-content/plugins/formcraft/file-upload/server/content/files/160b623ddc90ec---taxeripukiv.pdfIn PDF document text
    • https://www.kasekimi.com/wp-content/plugins/formcraft/file-upload/server/content/files/1608081cbab76c---sadulusimawiti.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn 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://scripts.sil.org/OFLIn PDF document text

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0001a88d.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x1A88D 5844 bytes
SHA-256: 772f2b4797b5bd05bc797121d30aa80e707e1d464b4409f25ed9e40cd69b2799
font_01_sfnt_off0001bc59.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x1BC59 11848 bytes
SHA-256: e49c781ffee28c04b5a889fe3293dee347476a2150fc9292a18aaa73560598d3

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