Malicious PDF — malware analysis report

Static analysis result for SHA-256 2b63f198ddec98cc…

MALICIOUS

PDF

72.8 KB Created: 2021-09-07 20:06:40 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2026-06-17
MD5: 5c13be9ea9505a5bc999d91f82413d2d SHA-1: f0659959f2cb03694bfc54b65497f761daf70fbc SHA-256: 2b63f198ddec98cc595f8717d6c9bc21d84e1eea81aedea83249557b5a32fc27
156 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9973

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://medvor.ru/uplcv?utm_term=kigali+city+map+pdf PDF link annotation
    • https://gujaratisamajparis.org/upload/files/tesoratelikupuku.pdfIn PDF document text
    • http://www.thunderesp.com/ckfinder/ckfinder.htmlfiles/juvoxoroxevonu.pdfIn PDF document text
    • http://winecellarkeeper.com/ckfinder/userfiles/files/99504062789.pdfIn PDF document text
    • https://pasarantogel.com/contents//files/fafevipawabupufojapovubap.pdfIn PDF document text
    • https://aprilboya.com/userfiles/file/22589353394.pdfIn PDF document text
    • http://alternativefitness.com.au/wp-content/plugins/formcraft/file-upload/server/content/files/160a30bff91c30---70717350332.pdfIn PDF document text
    • https://bititechnika.com/uploads/file/risuviw.pdfIn PDF document text
    • http://garantc.ru/userfiles/file/sarerejuzelesixuzatiz.pdfIn PDF document text
    • http://abwpetersburg.com/uploads/files/72770250860.pdfIn PDF document text
    • https://www.bountyvacation.com/wp-content/plugins/formcraft/file-upload/server/content/files/16085c4467c7ae---18935589837.pdfIn PDF document text
    • https://areicon.com/images/file/69719210011.pdfIn PDF document text
    • http://call.ae/wp-content/plugins/formcraft/file-upload/server/content/files/160a98259e05c4---vudukufutijexojove.pdfIn PDF document text
    • http://mfahk.com/upload/files/neguxefewezeweboririzifi.pdfIn PDF document text
    • http://alpha-th.com/userfiles/file/8473065676.pdfIn PDF document text
    • https://brothers-music.com/ckfinder/userfiles/files/52946189365.pdfIn PDF document text
    • https://kcharp.com/ckfinder/userfiles/files/bivixekewosewelo.pdfIn PDF document text
    • http://aiswaryamatrimonials.com/fck_uploads/file/toxozuvivepakadokam.pdfIn PDF document text
    • http://www.leesii.com/wp-content/plugins/formcraft/file-upload/server/content/files/160718d2932da0---10112302320.pdfIn PDF document text
    • https://www.citysecurity.org.uk/wp-content/plugins/super-forms/uploads/php/files/55eq3m4q741shcae0mu02muplc/53918367964.pdfIn PDF document text
    • http://aprendanow.com/wp-content/plugins/super-forms/uploads/php/files/b142452ab1748806b4c0c0cf00d0803e/levutam.pdfIn PDF document text
    • http://gphs100.com/clients/e/e3/e3ed30f4e85b1ff1e74f61348c82e8eb/File/mukalupisijiwetesiwixubij.pdfIn PDF document text
    • https://istocdukkan.com/userfiles/files/lubajisurununoboxowuwiz.pdfIn PDF document text
    • http://porpora.info/imagenes/imagenes_contenidos///rofeworabajotevikav.pdfIn PDF document text
    • https://bxthirteen.wpengine.com/wp-content/plugins/super-forms/uploads/php/files/bba3fc9119c2c524c350db81c1ab6318/zagorisozofotoxegiwuv.pdfIn PDF document text
    • 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_off0000bc57.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xBC57 16792 bytes
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1
font_01_sfnt_off0000d469.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xD469 16280 bytes
SHA-256: d2aa27725e912de8c98911880689d864d642e8838a5603a5e1168ded24e2244c
font_02_sfnt_off0000fe47.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xFE47 10444 bytes
SHA-256: 6628053c5a96da251a6f07174556f011b2475bea98071cb39c78211229c63279