Malicious PDF — malware analysis report

Static analysis result for SHA-256 2b67da41b4ddab9d…

MALICIOUS

PDF

89.8 KB Created: 2021-08-17 18:16:21 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2026-06-17
MD5: 40fb8ab4382d46668550c9b0735b7a52 SHA-1: 9e60650a9bf01975b51c612ec605ba747900ac99 SHA-256: 2b67da41b4ddab9dd6852581970989f493f690e9f69ad658dbe5ff47269a9202
156 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9981

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://cephedanismani.com/images/pages/file/rokovigilogadurinog.pdf In PDF document text
    • https://cashofferoregon.com/wp-content/plugins/formcraft/file-upload/server/content/files/1609bce8d5158e---lelukiruro.pdfIn PDF document text
    • https://chennothinterios.com/uploads/file/20376972915.pdfIn PDF document text
    • https://www.baptistenhardenberg.nl/wp-content/plugins/formcraft/file-upload/server/content/files/1609aa49b6a167---dodizepuzugugelunixu.pdfIn PDF document text
    • http://manufim.co.il/wp-content/plugins/formcraft/file-upload/server/content/files/16079873409bdf---gupudako.pdfIn PDF document text
    • https://vernadoc.com/wp-content/plugins/super-forms/uploads/php/files/015e71a2f9c33ec7a4f80c74d04c16ed/16371624511.pdfIn PDF document text
    • https://www.numberoneporthill.co.uk/wp-content/plugins/formcraft/file-upload/server/content/files/1609e0bfda4561---455236437.pdfIn PDF document text
    • http://salwex.hu/file/midador.pdfIn PDF document text
    • http://chaukitchen.com/uploads/files/55883216652.pdfIn PDF document text
    • http://bebelino.ru/userfiles/file/danirivigupi.pdfIn PDF document text
    • http://psn-monolit.ru/img_file/files/86139202006.pdfIn PDF document text
    • https://ceccargiurgiu.ro/userfiles/file/mawovakenemuranebuxutago.pdfIn PDF document text
    • http://goteneplast.se/files/images/file/2368264042.pdfIn PDF document text
    • http://urbanconstructions.org/images/uploadedimages/file/38055254679.pdfIn PDF document text
    • https://people11people.gr/uploads/File/pedipeta.pdfIn PDF document text
    • http://erfolgsapp.de/wp-content/plugins/formcraft/file-upload/server/content/files/1608afff30b6fc---52947759002.pdfIn PDF document text
    • http://custom-mugs-factory.com/uploadfile/files/71819083864.pdfIn PDF document text
    • http://giasuthanhdat.vn/Images_upload/files/86244974460.pdfIn PDF document text
    • https://law.com.sg/wp-content/plugins/super-forms/uploads/php/files/05e17ce707974d9e29c0d59fd5fb5a3e/lawadolo.pdfIn PDF document text
    • http://www.putnamtaxi.net/wp-content/plugins/formcraft/file-upload/server/content/files/160bd7fefb8ce8---lunumofaripofuresixe.pdfIn PDF document text
    • http://capmar.eu/userfiles/file/92387785040.pdfIn PDF document text
    • https://leicht-spb.ru/wp-content/plugins/super-forms/uploads/php/files/bcf5e687fe269f0fc10b5a47b98b3838/3885137519.pdfIn PDF document text
    • http://orthocarecentroortopedico.it/userfiles/files/foxatemuxaxusapaju.pdfIn PDF document text
    • http://foire-fromages-et-vins.com/wp-content/plugins/formcraft/file-upload/server/content/files/160b1fabcdd46a---badewudijivoxemevof.pdfIn PDF document text
    • https://feedproxy.google.com/~r/skout/mBVl/~3/1KS0DP0cxss/uplcv?utm_term=hvac+heat+load+calculation+worksheetPDF 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 4

Files carved from inside the sample during analysis.

FilenameKindSourceSize
stream_007_off00013b9c.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x13B9C 18288 bytes
SHA-256: d19b0f9348e213ec31ed0f920e957947d0ebff3ceadf35de3acd81ac6b6a7a7d
font_00_sfnt_off0000df95.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xDF95 16580 bytes
SHA-256: 085919a7a8b9e42335abd5b0c878d50d55982303112168f47858449e0d6ae019
font_01_sfnt_off00010aa6.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x10AA6 10800 bytes
SHA-256: 274cc50938166c50ea41c7df55fee6ab8a092f57a459e3f8891ede0f6ac516c9
font_02_sfnt_off0001238b.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x1238B 16792 bytes
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1