Malicious PDF — malware analysis report

Static analysis result for SHA-256 2b6e5da8c42aee51…

MALICIOUS

PDF

63.5 KB Created: 2021-12-11 03:11:12 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2026-06-17
MD5: 8df4deae8b2e17230214c64e7c012fb4 SHA-1: 1301653f018f4397c8441f327de38aad8ad3b7df SHA-256: 2b6e5da8c42aee51819407828cbf7be1e7d87e4e324b3fc5abc1b091ba15f750
156 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9986

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://bloomeng.com/uploads/pinegudalixovamufe.pdf In PDF document text
    • http://adanateknikservis.web.tr/wp-content/plugins/formcraft/file-upload/server/content/files/1616c87280be72---49008997527.pdfIn PDF document text
    • http://elistaprezentow.pl/userfiles/file/7642127743.pdfIn PDF document text
    • https://gres-k.cat/userfiles/file/66989932675.pdfIn PDF document text
    • http://banglenhospital.com/UserFiles/File/83691718656.pdfIn PDF document text
    • https://suruburi.net/mm/file/81254511296.pdfIn PDF document text
    • http://svadbavmoskve.com/content/xuploadimages/file/83858230418.pdfIn PDF document text
    • https://perfecthospital.org/FCKeditor/file/jagevubo.pdfIn PDF document text
    • http://photopuzzle.net/userData/board/file/wibadovijedewidelajibakir.pdfIn PDF document text
    • http://jcsh.bluezp.com/ckfinder/userfiles/files/tiwakiwusubanisonuz.pdfIn PDF document text
    • http://dreiseengrundschule.de/files/59186278395.pdfIn PDF document text
    • http://lawyermo.com/customer/3/d/9/3d947ad6ce2568d98b832ccf5548371bFile/jilulalevofa.pdfIn PDF document text
    • http://engineersclasses4competition.com/files/others/bobis.pdfIn PDF document text
    • http://bright-mineral.com/uploadfile/file/2021092515503252.pdfIn PDF document text
    • http://thekitchendesignstudio.org/uploads/files/26912713731.pdfIn PDF document text
    • http://www.guaitoli.eng.br/wp-content/plugins/formcraft/file-upload/server/content/files/16186c008ee0c0---lewimuvivemakexusad.pdfIn PDF document text
    • http://www.belladermeestetica.com.br/wp-content/plugins/formcraft/file-upload/server/content/files/161a1d0dd84a69---45704305428.pdfIn PDF document text
    • http://gaytonfa.com/upload/files/giduxevimojawop.pdfIn PDF document text
    • http://edmo-cars.nl/images/file/25792842480.pdfIn PDF document text
    • https://ducan.knjigae.com/userfiles/file/pesujafotoleralo.pdfIn PDF document text
    • http://www.otevrenysklep.cz/ckfinder/userfiles/files/97150311839.pdfIn PDF document text
    • http://feedproxy.google.com/~r/Xvkpad/~3/cmwvf4RlXg4/uplcv?utm_term=sony+xplod+1200w+amp+rmsPDF 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_off0000990b.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x990B 16416 bytes
SHA-256: cfa2c3fbce80cc5607e01af033b793d17c57c214fb1d96e845eedea48cccd336
font_01_sfnt_off0000afaa.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xAFAA 15388 bytes
SHA-256: 65f8ab2447275a731824990436107d61e219c272eaf79ac6179fa8158a12e7cd
font_02_sfnt_off0000d724.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xD724 10904 bytes
SHA-256: e368cfe18d4d3d71ee46f49b3dba13db655f61175851aa3de259b11cd1c36776