Malicious PDF — malware analysis report

Static analysis result for SHA-256 941a121bb8ad0b7e…

MALICIOUS

PDF

71.8 KB Created: 2021-12-12 04:53:53 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2026-06-12
MD5: bb630f7695f720b5b94a2f7529ead466 SHA-1: 58e6e02b1733d4c243a8699907fc9b03ba1838ee SHA-256: 941a121bb8ad0b7e1e681a9634c2ceaf458144c3b08e37f4db0b968c1733140b
156 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9975

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://gimhaejazz.com/fckeditor/userfiles/image/fiwibax.pdf In PDF document text
    • https://ifacemount.com/wp-content/plugins/super-forms/uploads/php/files/efabdqoiujiaplm06rhl9n81fc/dujiwovomavimitodoga.pdfIn PDF document text
    • http://aspbae.org/userfiles/file/zubejosegobewibufunudena.pdfIn PDF document text
    • https://www.enviedecrire.com/wp-content/plugins/formcraft/file-upload/server/content/files/1619bebe2e328e---73792957232.pdfIn PDF document text
    • https://edubox.mn/uploads/users/0/files/wovenesosezefow.pdfIn PDF document text
    • https://exihomes.com/userfiles/files/82964944250.pdfIn PDF document text
    • http://riversedgefm.com/files/file/74376587260.pdfIn PDF document text
    • https://bestrecycledautoparts.net/images_i/file/39652276391.pdfIn PDF document text
    • http://thaicockstar.com/ckfinder/userfiles/files/janiki.pdfIn PDF document text
    • https://greshamgilessalon.com/wp-content/plugins/super-forms/uploads/php/files/e1ecbcce783609d803d07af7a011bca9/dujinubifajogenobusag.pdfIn PDF document text
    • https://northcoteplaza.com/userfiles/file/mabulusorubasesa.pdfIn PDF document text
    • http://romengo.com/ckfinder/userfiles/files/36684375454.pdfIn PDF document text
    • https://ncfouting.com/wp-content/plugins/formcraft/file-upload/server/content/files/16153ad58ad23d---8622380417.pdfIn PDF document text
    • https://bmw-zona.ru/uploads/file/84255185329.pdfIn PDF document text
    • http://posicert.com/upload_fck/file/2021-9-2/20210902001810102196.pdfIn PDF document text
    • https://dukumanis.com/contents/files/44434282828.pdfIn PDF document text
    • http://lblussana.it/images/file/45715913994.pdfIn PDF document text
    • https://marblobaths.com/app/webroot/img/files/xujesupetuwi.pdfIn PDF document text
    • http://kamkmori.cz/ckfinder/userfiles/files/jitokubapa.pdfIn PDF document text
    • http://wojno-stal.pl/pliki/file/59492078539.pdfIn PDF document text
    • https://casasholidays.com/scgtest/team-explore/uploads/files/43979943446.pdfIn PDF document text
    • http://eko-baby.ru/userfiles/file/97861154943.pdfIn PDF document text
    • https://golf-tout-terrain.com/publish/page/file/15981383603.pdfIn PDF document text
    • https://www.bussmann-tiefbau.de/ckfinder/userfiles/files/xogurejukelifafukaxov.pdfIn PDF document text
    • https://radmangroup-ye.com/rgfiles/file/zawopimuzezukimuwefoli.pdfIn PDF document text
    • http://feedproxy.google.com/~r/MbOu/~3/896FEnmJZlk/uplcv?utm_term=how+to+pair+motorola+bluetoothPDF 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_off0000b420.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xB420 10564 bytes
SHA-256: 21a937b56b9ac5bfc23313528024bb218cf28077d3f03bd0505f085b1cb4d0c2
font_01_sfnt_off0000cbf7.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xCBF7 16416 bytes
SHA-256: cfa2c3fbce80cc5607e01af033b793d17c57c214fb1d96e845eedea48cccd336
font_02_sfnt_off0000e296.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE296 17976 bytes
SHA-256: 4e131916e51695ed78eff33552d102fc38572151803c4107c233ec99ca271799