Malicious PDF — malware analysis report

Static analysis result for SHA-256 2b657920bd4e864d…

MALICIOUS

PDF

82.1 KB Created: 2021-09-20 17:33:32 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2026-06-17
MD5: 99f6c3dd10277e4805737b40184e4b9a SHA-1: bdc3c30a11a9516bf9c1d80805bfd4b4394a2cd0 SHA-256: 2b657920bd4e864dc8d6fa8fdf8a989f404667376241a0322f3014230012d48f
156 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9977

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://www.truca-taoules.com/ckfinder/userfiles/files/68564946524.pdf In PDF document text
    • https://www.servicespace.org/inc/ckfinder/userfiles/files/kujodaxitovof.pdfIn PDF document text
    • http://xhzhengli.com/upload/6745671210.pdfIn PDF document text
    • http://asiadomainstore.com/userfiles/file/54173266987.pdfIn PDF document text
    • http://tlumacz-bialystok.pl/pliki/file/83618554109.pdfIn PDF document text
    • https://pfhotel.gr/ckfinder/userfiles/files/13718246918.pdfIn PDF document text
    • http://reliancefla.com/admin/images/file/dipisibamuwiz.pdfIn PDF document text
    • http://snookerfootball.eu/wp-content/plugins/formcraft/file-upload/server/content/files/161334cbd9bbf6---ludizun.pdfIn PDF document text
    • http://dfanchem.com/upload/files/dorokanavozudetuse.pdfIn PDF document text
    • https://partetesal.ir/data/file/71487857240.pdfIn PDF document text
    • https://atasuorganiktarim.com/upload/ckfinder/files/44273695332.pdfIn PDF document text
    • http://joyear.com/ckfinder/userfiles/files/tozimevividijuvaluguvu.pdfIn PDF document text
    • http://baheth24cars.com/ckfinder/userfiles/files/15719244384.pdfIn PDF document text
    • http://drzwiukryte.pl/userfiles/file/64747900179.pdfIn PDF document text
    • https://siemreaptraveltours.com/userfiles/file/jasefelagujukujawa.pdfIn PDF document text
    • https://www.chinacimctrailer.com/wp-content/plugins/super-forms/uploads/php/files/a7a6b5fe42973aaad6a6c8d594253e7d/34424997971.pdfIn PDF document text
    • http://gamboeng.com/assets/ckfinder/userfiles/files/25198494682.pdfIn PDF document text
    • http://www.miamiairportlimo.net/wp-content/plugins/formcraft/file-upload/server/content/files/16139c30861c70---jixipitejowezuv.pdfIn PDF document text
    • http://gpkoaee.ru/ckfinder/userfiles/files/96944680587.pdfIn PDF document text
    • http://quinta.cl/upload/files/99716364321.pdfIn PDF document text
    • http://adfaveo.com/image/files/20210920_103810.pdfIn PDF document text
    • http://daegyung.kr/userfiles/file/20210912073013.pdfIn PDF document text
    • http://nileagriculturalindustries.com/file/3020880192.pdfIn PDF document text
    • https://feedproxy.google.com/~r/skout/mBVl/~3/cv9VXjIrmdE/uplcv?utm_term=earth+%26+moon+in+hd+gyro+3d+parallax+live+wallpaperPDF 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_off0000e007.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE007 9520 bytes
SHA-256: 2a554bed1950cba7ec3745639115f4c748f3fc6def6d37055f2ee7f9643964c3
font_01_sfnt_off0000f48c.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF48C 16792 bytes
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1
font_02_sfnt_off00010c9e.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x10C9E 17860 bytes
SHA-256: 207b93a0ffaf1e73779cf29bdad79fd07f68eb75cca0d1465a0f94c33a9b47ec

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