Malicious PDF — malware analysis report

Static analysis result for SHA-256 cd760d26037f34e1…

MALICIOUS

PDF

78.1 KB Created: 2021-10-08 05:21:53 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2026-06-18
MD5: 31b909b89c7b2338d4ed89c55c6fd80b SHA-1: dfaf3a34dab68abcfe2b4e3af94be24ec0a66577 SHA-256: cd760d26037f34e12244a90a1375d7d852618e69c29f60e21d72bc8e4e00dc3e
126 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9975

Heuristics 5

  • ClamAV: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0
  • 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://smgbid.com/ckfinder_userfiles/files/52748067836.pdf In PDF document text
    • http://satisfytech.com/ck/upload/files/puxevajozasadu.pdfIn PDF document text
    • http://sibinetweek.ru/userfiles/file/pumanofomefoka.pdfIn PDF document text
    • http://studioingtassinari.eu/userfiles/files/rasosakevateje.pdfIn PDF document text
    • https://arhiapp.web-idea.ro/app/webroot/files/userfiles/files/lixuwagis.pdfIn PDF document text
    • https://daquin-ferriere.fr/userfiles/file/ripuwagen.pdfIn PDF document text
    • http://ordinate-ltd.com/file_media/file_image/file/55692044841.pdfIn PDF document text
    • http://www.naturapreserved.com/wp-content/plugins/formcraft/file-upload/server/content/files/16137c6d35cf87---meletitukuleketirafalu.pdfIn PDF document text
    • https://bccphil.paramedix.biz/uploadfiles/file/sajokofutalojakus.pdfIn PDF document text
    • https://bustotoronto.com/userfiles/file/21005472614.pdfIn PDF document text
    • https://rireenfrance.com/images/upload/files/68200912376.pdfIn PDF document text
    • http://uniondrygoods.com/fckeditor/userfiles/file/63051390804.pdfIn PDF document text
    • https://ctapigroup3.com/contents/files/20474184417.pdfIn PDF document text
    • https://mjrspot.com/fckimages/file/lipaxu.pdfIn PDF document text
    • http://rungruangsteel.com/public/upload/userfiles/files/megubigemujoxalexiw.pdfIn PDF document text
    • http://freeski.hu/freeski/file/54846651246.pdfIn PDF document text
    • http://jjkxmy.com/upload/files/202109202011392588.pdfIn PDF document text
    • http://ozkayalarlojistik.com/userfiles/file/15094635596.pdfIn PDF document text
    • http://allier.proximeo.com/ckfinder/userfiles/files/5684004617.pdfIn PDF document text
    • http://dangkyidol.com/wp-content/plugins/super-forms/uploads/php/files/anb3t4sutdkoc4p0b52j5hnha4/lefega.pdfIn PDF document text
    • https://zoomkish.com/basefile/zoomkishcom/files/53946656581.pdfIn PDF document text
    • http://hmondo.com/userData/board/file/dosekemekinutapowizavor.pdfIn PDF document text
    • http://csc0532.com/userfiles/file/20210924232031_6xw66g.pdfIn PDF document text
    • http://seoulsquare.com/userfiles/file/mebaganutelopa.pdfIn PDF document text
    • https://feedproxy.google.com/~r/skout/mBVl/~3/YTWXjIUwRh0/uplcv?utm_term=golf+3+for+salePDF 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_off0000cb9b.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xCB9B 19092 bytes
SHA-256: 1b8efdde92a6f68a756b2a64b8685b5ca429c9c64ad53cf2d999d2291f192d30
font_01_sfnt_off0000fc23.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xFC23 10124 bytes
SHA-256: 86b0cac45e9af288723ced2931d0fd19521daf4b104a210b83080ab9667de383
font_02_sfnt_off000112f7.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x112F7 16792 bytes
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1

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