Malicious PDF — malware analysis report

Static analysis result for SHA-256 af212a060ea7b6f6…

MALICIOUS

PDF

78.3 KB Created: 2021-10-07 10:08:49 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2026-06-21
MD5: c8f7662ce4755e9b09a9cf9298a66bee SHA-1: baa4812b7413403284b695ea444eb2a0bec8f2da SHA-256: af212a060ea7b6f6107d146f0645939ba92fb5cdb5b6693afd9b69570c2528f0
156 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9978

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 http://impactpluslearning.com/ckfinder/userfiles/files/74987396411.pdf In PDF document text
    • http://hocikto.info/userfiles/file/19045057900.pdfIn PDF document text
    • http://bdpq.hungminhits.com/files/uploaded/files/kolufewulumozovuwumudi.pdfIn PDF document text
    • https://jkmart.net/FCKFiles/File/26104614703.pdfIn PDF document text
    • http://aaaexpressac.com/userfiles/file/fagiro.pdfIn PDF document text
    • http://bensonlandscape.com/editorData/file/zewifibasurasejomawisi.pdfIn PDF document text
    • https://kominove-centrum.cz/media/files/file/bolirupuvek.pdfIn PDF document text
    • https://vickers-electronics.co.uk/wp-content/plugins/super-forms/uploads/php/files/02ded05f26dacec8e8c9c388781c1040/61885205248.pdfIn PDF document text
    • https://cebrium.ssnn.ro/images/79552127839.pdfIn PDF document text
    • http://haiqi-machine.com/d/files/vopanumame.pdfIn PDF document text
    • http://sunnysolutions.it/uploads/assets/file/66360124252.pdfIn PDF document text
    • https://klingende-zeder.de/wp-content/plugins/formcraft/file-upload/server/content/files/1615b4ccabc968---21902111149.pdfIn PDF document text
    • https://gservicepz.com/wp-content/plugins/super-forms/uploads/php/files/4d1422af0f8c86e1a14b51a7f588c7ff/81358209251.pdfIn PDF document text
    • http://www.kindytennis.com/wp-content/plugins/formcraft/file-upload/server/content/files/1614e5679ba4a1---wametitesenija.pdfIn PDF document text
    • https://www.fifatravels.com/wp-content/plugins/formcraft/file-upload/server/content/files/1615de676c3a8d---35102616628.pdfIn PDF document text
    • https://emotionalgift.youngzonejewelry.com/ckfinder/userfiles/files/46576388719.pdfIn PDF document text
    • http://xn--80aer5aza.xn--c1acndkmcarx.xn--p1ai/ckfinder/userfiles/files/nesofazepelarikejukot.pdfIn PDF document text
    • http://yansyuan.com/UserFiles/images/files/45112396856.pdfIn PDF document text
    • http://trongtinpc.com/luutru/files/bulepizivuri.pdfIn PDF document text
    • https://kuwaitpolyurethane.com/ckfinder/userfiles/files/zijilalipodisidububitomoj.pdfIn PDF document text
    • https://foulardfotografando.it/file/serane.pdfIn PDF document text
    • https://angelsstaff.com/uploads/file/laxakalewijuvagaxitirira.pdfIn PDF document text
    • http://tecresconsolidamentorestauro.it/fck_data/file/52073555358.pdfIn PDF document text
    • https://feedproxy.google.com/~r/Uplcv/~3/GLLx1DTH0VQ/uplcv?utm_term=family+feud+correct+answer+soundPDF 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_off0000ca45.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xCA45 16792 bytes
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1
font_01_sfnt_off0000e257.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE257 18608 bytes
SHA-256: a63c1c34058fa16f7531b8d615ecdefc054644e6d0d1b2ffc69e63b290b4c1f4
font_02_sfnt_off0001125b.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x1125B 10912 bytes
SHA-256: 2db8a6d227635e11ce9a3496c4879f1b291653fd1310cc186e392c4588661f27