Malicious PDF — malware analysis report

Static analysis result for SHA-256 72b05531f81013cf…

MALICIOUS

PDF

86.4 KB Created: 2021-09-13 14:18:03 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2026-06-28
MD5: e6e543fa9e0c03528a038ad11dfc1528 SHA-1: 3c223df1360ad543dc087c65bd4f2a3787ec0a00 SHA-256: 72b05531f81013cf19c43cb083f0febdf5facc8920f2ed0e41a0b6906b5ebdf9
126 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9905

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 http://wksystems.net/HotelEstimator/userfiles/file/ferepusadepide.pdf In PDF document text
    • http://kiuruvedenlukio.fi/tiedostot/file/nuxutiwipegi.pdfIn PDF document text
    • http://aqs-group.it/userfiles/files/95116685946.pdfIn PDF document text
    • http://appartementslisa.it/an3_Uploads/file/lifetenewezajewipamirar.pdfIn PDF document text
    • https://eurochen.com/UpFiles/WebEditorFiles/file/31285374631.pdfIn PDF document text
    • https://www.coconutlodge.com/wp-content/plugins/formcraft/file-upload/server/content/files/1613459eac2cd8---37412841909.pdfIn PDF document text
    • https://mintedimages.com/ckfinder/userfiles/files/lodumumesalave.pdfIn PDF document text
    • https://goldfieldssanddrags.com.au/ckfinder/userfiles/files/34817258984.pdfIn PDF document text
    • http://synagoge-stommeln.de/ckfinder/userfiles/files/64576461961.pdfIn PDF document text
    • http://ninda.vn/userfiles/files/48749094696.pdfIn PDF document text
    • http://ambvetbrashersclavoghisu.eu/userfiles/files/61591643830.pdfIn PDF document text
    • http://rld-carbon.com/file/bozumufe.pdfIn PDF document text
    • http://www.gdchgs.com/admin/img/files/xezaxa.pdfIn PDF document text
    • http://onthebroadway.com/CPD/adminpanel/upload/file/37965648875.pdfIn PDF document text
    • https://gastriklandsbf.se/UserFiles/files/56303670337.pdfIn PDF document text
    • http://przyrodnik-kujawy.eu/userfiles/file/pekakanurida.pdfIn PDF document text
    • https://nhatngudongkinh.com/upload/ckupload/files/53531035101.pdfIn PDF document text
    • https://www.studiorosaliabusco.it/ckfinder/userfiles/files/69057906146.pdfIn PDF document text
    • http://aviatechinform.ru/sadm_files/fepaginanuw.pdfIn PDF document text
    • http://zehanbiopharma.com/upload/files/56629713067.pdfIn PDF document text
    • http://dissanna.com/temp/fckeditor/file/95283605531.pdfIn PDF document text
    • https://karolinanowak.com/userfiles/file/manojixafepe.pdfIn PDF document text
    • https://hotelharmika.com/assets/userfiles/files/vapovafe.pdfIn PDF document text
    • http://geerhannutpourreussir.be/docs/upload/files/vixudijidejedajored.pdfIn PDF document text
    • http://www.hz-kontejnery.cz/ckfinder/userfiles/files/82357857442.pdfIn PDF document text
    • http://sbcnepal.com/images/file/91200580079.pdfIn PDF document text
    • http://health-bridge.in/upload/file/28260379160.pdfIn PDF document text
    • https://feedproxy.google.com/~r/Uplcv/~3/fzgW7-mxBc0/uplcv?utm_term=best+file+sharing+android+appPDF 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_off0000ee15.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xEE15 10828 bytes
SHA-256: 3364093add2ce5abb810093c7ba2f7255b66f3d4e176afa7da508dba55295b15
font_01_sfnt_off000106c3.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x106C3 17276 bytes
SHA-256: 64aa6951855ebd9cc8a9280882ca8dadba8f1dcb403a984c6509ee58af8d8d09
font_02_sfnt_off0001338e.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x1338E 16792 bytes
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1

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