Malicious PDF — malware analysis report

Static analysis result for SHA-256 f873a636d08d2674…

MALICIOUS

PDF

88.5 KB Created: 2021-07-24 06:45:33 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2026-06-17
MD5: 64a9660cc6d34ec0c62c15c198799348 SHA-1: 0f07bc624ed646b7ba0be398c6368613d7e5fb57 SHA-256: f873a636d08d2674d0a8b251e1cfff24c15626b12f0c55efe17e5ad0b6b88bea
156 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9988

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://gingerbreadvillage.org/clients/e/e3/e396b250b60561adcb946853f9f62e29/File/bofekalemuligidojumut.pdf In PDF document text
    • http://ladue62.com/clients/2/2d/2d0487a90c18d3a1b3df44839405a665/File/74643529547.pdfIn PDF document text
    • http://www.doctor-carpet.com/wp-content/plugins/super-forms/uploads/php/files/4mcfdrvpcvdoljjh2d7jmi4rj0/55137604138.pdfIn PDF document text
    • http://bertrandetgastineaudesigners.com/userfiles/file/77143434004.pdfIn PDF document text
    • https://levin-dent.ru/wp-content/plugins/super-forms/uploads/php/files/732552eea05befd48a450ca8472cc4f9/vabuxuri.pdfIn PDF document text
    • http://benly-carson.com/product/files/95926299033.pdfIn PDF document text
    • https://etimes.mn/uploads/files/58273064672.pdfIn PDF document text
    • http://kbchina.de/upload/lolupufelufowirujezadenow.pdfIn PDF document text
    • https://duproject.com/uploadEditor/files/xiketexipotitezosizi.pdfIn PDF document text
    • http://www.k-24.com/wp-content/plugins/formcraft/file-upload/server/content/files/1608e6454b5f35---nemajuzudinawazida.pdfIn PDF document text
    • https://www.adler-leitishofen.de/wp-content/plugins/formcraft/file-upload/server/content/files/1606e5c8360ced---27421069942.pdfIn PDF document text
    • https://www.inkfactory.pk/wp-content/plugins/formcraft/file-upload/server/content/files/16093cdfc8f34c---12712682190.pdfIn PDF document text
    • https://precisionautoandac.com/wp-content/plugins/super-forms/uploads/php/files/ba5f98322f7126d4a4123473ebf5bb28/59196923178.pdfIn PDF document text
    • http://moristas.com/userfiles/files/39430422555.pdfIn PDF document text
    • http://divapharma.com/uploaded/file/lojafubo.pdfIn PDF document text
    • http://anticacarsulaeborzoi.eu/userfiles/files/xogakidimavodixowete.pdfIn PDF document text
    • https://nepalmicrofinancesummit.org/userfiles/files/maxulobedis.pdfIn PDF document text
    • https://thesmithgrouphouston.com/wp-content/plugins/super-forms/uploads/php/files/a5328eb03cca7dc3a8661350a4553b15/80026455821.pdfIn PDF document text
    • https://pilotcenter.gr/wp-content/plugins/super-forms/uploads/php/files/3agdh8q30j7vhl31m9jtis0c03/78991190535.pdfIn PDF document text
    • http://www.mtpartnersfl.com/wp-content/plugins/formcraft/file-upload/server/content/files/160c9339f596bb---rijew.pdfIn PDF document text
    • http://laweasy.kr/userfiles/file/28166090864.pdfIn PDF document text
    • https://feedproxy.google.com/~r/1eyvgo/aqOO/~3/LPIa9PGmDLg/uplcv?utm_term=how+do+you+use+the+pampered+chef+stoneware+egg+cookerPDF 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_off0000f570.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF570 16792 bytes
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1
font_01_sfnt_off00010d87.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x10D87 11312 bytes
SHA-256: 0df587b9e073e746e2544edd69119d586ff3481e485cbcbfbe20b920a2d7667d
font_02_sfnt_off000127cc.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x127CC 16700 bytes
SHA-256: 7e7a9634f94bdc11716b0267811b1b760d9254715e6c2f00ea5df7151c6b5245