Malicious PDF — malware analysis report

Static analysis result for SHA-256 782b1d37f9c1e30d…

MALICIOUS

PDF

75.1 KB Created: 2021-09-02 10:53:57 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2026-06-16
MD5: c320423e64a25f4717fd9278808e6033 SHA-1: ee74be9fe968d35106b28569dafce6714f2d8962 SHA-256: 782b1d37f9c1e30d971771b6aef4c9d7cc7e60f6d961f6dcec667e24fb1ef290
156 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9993

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://superplasticizer.cn/d/files/68812419402.pdf In PDF document text
    • http://www.sensible-seeds-premium.com/wp-content/plugins/formcraft/file-upload/server/content/files/1607ca9c0b3e14---70613171692.pdfIn PDF document text
    • https://inchiriereelicopterromania.ro/wp-content/plugins/formcraft/file-upload/server/content/files/160bed407cef99---81537178687.pdfIn PDF document text
    • http://metapolar.hu/tmp/23674370535.pdfIn PDF document text
    • https://www.spoton.pet/wp-content/plugins/super-forms/uploads/php/files/ln1vmkkausukqvu9ihhfscfqu8/zisojazevur.pdfIn PDF document text
    • http://xn--h1acbpobggs.xn--p1ai/data/files/8943186712.pdfIn PDF document text
    • https://bosgo.mn/uploads/files/67699620366.pdfIn PDF document text
    • https://cortopolis.ar/userfiles/file/witos.pdfIn PDF document text
    • https://toptenstudy.com/upload/files/BodyFile__60E10E0D66095.pdfIn PDF document text
    • https://topinsolventa.ro/userfiles/file/81883532393.pdfIn PDF document text
    • http://wine-paraphernalia.com/files/winep/_repo/file/ruxel.pdfIn PDF document text
    • https://ikuseikyokai.jp/ckmedia/files/lidesuferi.pdfIn PDF document text
    • http://designbeginnings.com/upload/file/poremolebirovakebi.pdfIn PDF document text
    • https://cfbadalona.net/ckdata/files/wagepozatularisamisa.pdfIn PDF document text
    • https://eclipsetheaters.com/wp-content/plugins/formcraft/file-upload/server/content/files/16094c1c53fc75---74297370390.pdfIn PDF document text
    • http://jungvassar.com/customer/3/d/9/3d947ad6ce2568d98b832ccf5548371bFile/6194343112.pdfIn PDF document text
    • http://maxitelt.no/wp-content/plugins/formcraft/file-upload/server/content/files/1608fb7b06b85e---11230554624.pdfIn PDF document text
    • http://julieesteban.com/wp-content/plugins/formcraft/file-upload/server/content/files/1609890a6a72f9---donedovaxomel.pdfIn PDF document text
    • http://landonintergroup.com/ckfinder/userfiles/files/60054137941.pdfIn PDF document text
    • https://amesmedicalservices.com/wp-content/plugins/formcraft/file-upload/server/content/files/1607c274e2100e---6722793617.pdfIn PDF document text
    • https://siphouse96.com/wp-content/plugins/super-forms/uploads/php/files/5f3931bead295a3e0d583cdfeee5766c/92514872548.pdfIn PDF document text
    • https://too.kg/wp-content/plugins/super-forms/uploads/php/files/15955fe9c7d9ca4ef5092be6c5d7476a/gikuwomipanakigefikofiga.pdfIn PDF document text
    • http://pck.malopolska.pl/wp-content/plugins/super-forms/uploads/php/files/12fba9a19cc13c2b873bb39148fb9496/fesevumo.pdfIn PDF document text
    • https://feedproxy.google.com/~r/skout/mBVl/~3/LPIa9PGmDLg/uplcv?utm_term=latest+ios+version+for+iphone+6PDF 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_off0000c0fc.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xC0FC 10600 bytes
SHA-256: 30a662da54db6e2dc48c0a97d7fbe043478d67ef85daa7abf09708eaf0782a29
font_01_sfnt_off0000d935.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xD935 16792 bytes
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1
font_02_sfnt_off0000f147.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF147 17436 bytes
SHA-256: 3632f3fbae3d32a2bc41ab6384849a3cd015f36e76d8627e171137603a3058a7