Malicious PDF — malware analysis report

Static analysis result for SHA-256 f2f5acd75a7822e3…

MALICIOUS

PDF

73.8 KB Created: 2021-09-20 11:51:04 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2026-06-13
MD5: c55b2630aba50500dcc0315634a1ed14 SHA-1: 71fdc30d235f61fd0e87542ac1692d5a6ac18319 SHA-256: f2f5acd75a7822e3a205b0748d1e5c19bfa03eb9c0bb10dcda8326435ae261b3
156 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9908

Heuristics 6

  • ClamAV: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0
  • 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://cructi.ru/uplcv?utm_term=free+ps2+emu PDF link annotation
    • https://privatecambodiatour.com/userfiles/file/wobafedaxugiwopajepetogu.pdfIn PDF document text
    • http://ciccioinpentola.com/userfiles/files/5814570472.pdfIn PDF document text
    • http://oikoscoccatoarchitettura.com/userfiles/files/34796414395.pdfIn PDF document text
    • https://soi.icami.mx/ckfinder/userfiles/files/vugupulosurimovesota.pdfIn PDF document text
    • https://learnrkbin.jugalbandiresearch.com/ckfinder/userfiles/files/fokajejorazimexatanokakij.pdfIn PDF document text
    • https://ventadeterrenosagricolas.com/userfiles/file/36357365140.pdfIn PDF document text
    • http://altus.pl/userfiles/file/fakovixilawugojuvaxomi.pdfIn PDF document text
    • https://tutorbolivia.com/userfiles/file/bevanudefavogojesav.pdfIn PDF document text
    • https://venefoil.com/ckfinder/userfiles/files/ximixiwomabepu.pdfIn PDF document text
    • http://salukool.ee/upload/userfiles/file/89542573889.pdfIn PDF document text
    • http://hujiangsy.com/upload/files/31920122277.pdfIn PDF document text
    • http://haiqi-machine.com/d/files/lafipuramul.pdfIn PDF document text
    • http://www.ponderosafestival.com/wp-content/plugins/formcraft/file-upload/server/content/files/16148025234dc1---bodaxuzezokukutubevesu.pdfIn PDF document text
    • http://koreanhotpot.com/uploads/files/69781382249.pdfIn PDF document text
    • http://www.onegelha.com/wp-content/plugins/super-forms/uploads/php/files/ec846d34c6c2bbaced5ce7e5b124ab7c/fisarifisozur.pdfIn PDF document text
    • http://hnkingdee.cn/Files/file/202191415115.pdfIn PDF document text
    • http://gniortho.com/files/Upload/file/pogulo.pdfIn PDF document text
    • http://www.lifestaralberta.com/wp-content/plugins/formcraft/file-upload/server/content/files/1613191c446aa9---mazupawixumugazozizuxuzez.pdfIn PDF document text
    • http://www.a-fairys-choice.com/wp-content/plugins/formcraft/file-upload/server/content/files/161469d7e10a21---7681603966.pdfIn PDF document text
    • http://motovelo-nmsk.ru/userfiles/file/pitisazemofagabezelom.pdfIn PDF document text
    • http://maychebiengoduykhuong.com/media/ftp/file/19638451462.pdfIn PDF document text
    • https://hotelreviewreserve.com/basefile/hotelreviewreservecom/files/56626716227.pdfIn PDF document text
    • http://czerwoneiczarne.pl/files/file/32525874948.pdfIn PDF document text
    • http://driver-jazda.pl/upload/file/viferowowimaluvafesifot.pdfIn PDF document text
    • http://aromaonly1.com/yamituki-n/uploads/files/69661004451.pdfIn PDF document text
    • https://ladangmimpi2.com/contents/files/24263378367.pdfIn 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://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_off0000be52.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xBE52 16792 bytes
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1
font_01_sfnt_off0000d668.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xD668 9988 bytes
SHA-256: bc0a2a7deaf2d8597aac6df4eef35996d971d310f307db73c631d6419b16c94d
font_02_sfnt_off0000ec98.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xEC98 17552 bytes
SHA-256: 4e7bef9f1a27c03e41b9030fc63957f93b4af73cab43ed862338baab20015ccc