Malicious PDF — malware analysis report

Static analysis result for SHA-256 48dd52263fcf18c0…

MALICIOUS

PDF

85.1 KB Created: 2021-09-11 10:05:58 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2026-07-12
MD5: 5166d1d5fc9d85d177d91b1a59ce1dad SHA-1: 610a3efcd9cd4e9018c7c2ea46f9f659cc750019 SHA-256: 48dd52263fcf18c04ae91fb464f58d9e65ac3bd42bfa23864a9938b332340973
186 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9974

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
  • Travel-support phone-number stuffing scam critical SE_TRAVEL_SUPPORT_PHONE_SCAM
    Document repeats phone numbers in airline/travel/refund/support language, often across multiple regional phrasings. This matches SEO/support-scam PDFs that impersonate airlines or travel brands and route users to attacker-controlled call centers rather than a normal travel document.
  • 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.aamuhsv-madisonalumni.org/files/files/ximavofukaloji.pdf In PDF document text
    • https://bonvoyageindia.in/ckfinder/userfiles/files/masenekurujafadubi.pdfIn PDF document text
    • http://bukhatirhomes.com/userfiles/file/faxevazimilapixuxu.pdfIn PDF document text
    • http://kondicionery-shodnya.ru/upload_picture/file/pozixusefunamizo.pdfIn PDF document text
    • https://stw-nowogard.pl/download/file/71853496186.pdfIn PDF document text
    • http://pointerboards.com/uploads/admin/files/54864131001.pdfIn PDF document text
    • https://lolakarimova.uz/ckfinder/userfiles/files/zujozizifig.pdfIn PDF document text
    • https://virtrade.gr/userfiles_lybo/file/fukusavibep.pdfIn PDF document text
    • http://southerncross-ex.com/images/blog/file/16347967898.pdfIn PDF document text
    • https://aarushimukhwas.idealviews.com/userfiles/files/vaxufi.pdfIn PDF document text
    • http://nacyc.jp/Upload/file/43658286064.pdfIn PDF document text
    • https://shunnasato.com/buresegebafifemiluvuti.pdfIn PDF document text
    • http://pradakshinam.com/fck_uploads/file/59328403516.pdfIn PDF document text
    • http://clubsahdianagalati.ro/upload/editor/file/jegipudulewudixojazogif.pdfIn PDF document text
    • https://yaslibakicisi.net/userfiles/file/diwerukanizexapinevubej.pdfIn PDF document text
    • http://barcelonasixtytwo.com/userfiles/file/60721997912.pdfIn PDF document text
    • http://paykaaluminiya.ru/ckfinder/userfiles/files/pumizareli.pdfIn PDF document text
    • http://reckdance.pl/userfiles/file/vapifudefanewunad.pdfIn PDF document text
    • http://bjyhyy.cn/filespath/files/20210910051342.pdfIn PDF document text
    • http://kkagro.com/media/images/upload/file/zuseduzabufupoforim.pdfIn PDF document text
    • http://www.rify.us/cms-uploads/files/79010426896.pdfIn PDF document text
    • http://sgrappresentanze.eu/userfiles/files/5154271359.pdfIn PDF document text
    • http://seasonsblinds.com/uploads/ckfinder/userfiles/files/51140505854.pdfIn PDF document text
    • https://newcar-rental.com/uploads/files/202109052345001221.pdfIn PDF document text
    • https://aspit.ro/imagini_ws/vizisuwew.pdfIn PDF document text
    • https://drafthe.ru/uplcv?utm_term=how+many+apps+should+i+have+on+my+androidPDF 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 extracted file (font_00_sfnt_off0000e68d.bin)
    • http://dejavu.sourceforge.net/wiki/index.php/LicenseIn extracted file (font_00_sfnt_off0000e68d.bin)

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000e68d.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE68D 17940 bytes
SHA-256: 6aee9e3613c445e19ca22a785159d6feee98a749c94650c8523a64e04e459189
font_01_sfnt_off0001151a.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x1151A 16792 bytes
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1
font_02_sfnt_off00012d31.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x12D31 10916 bytes
SHA-256: c13076f97893ba34abfd17ed2408545c406d41f6a7df5c8937ddd428567e57fc