Malicious PDF — malware analysis report

Static analysis result for SHA-256 f999682674c87770…

MALICIOUS

PDF

76.2 KB Created: 2021-10-24 12:05:15 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2026-06-13
MD5: 179dcf803ff879ff8ef0d575f270945f SHA-1: 207a4ab4dc11a094d44fad2b7ca04a59c6545b7e SHA-256: f999682674c877700bb5b41a793bcfebb8964b5c92b0a966f1c6c63cca591482
126 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9947

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://krisoc.ru/uplcv?utm_term=hard+and+fast+rule PDF link annotation
    • http://fredericjean.net/oplusco/file/logazefegol.pdfIn PDF document text
    • http://thegioimaychaybo.com/app/webroot/uploads/files/sowurilabuketas.pdfIn PDF document text
    • https://fac.apuntoweb.com/userfiles/files/jovetokaziputezoxe.pdfIn PDF document text
    • http://lauko-baseinai.lt/i/File/21110657108.pdfIn PDF document text
    • https://egyiksem.hu/uploads/file/nuvulidimu.pdfIn PDF document text
    • http://koryosushi.com/uploads/files/98593995298.pdfIn PDF document text
    • http://www.tecnobor.es/ckfinder/userfiles/files/dixotamowenugita.pdfIn PDF document text
    • https://wronba.pl/uploads/wysiwyg/file/wuziwalabi.pdfIn PDF document text
    • https://izharfoster.com/wp-content/plugins/formcraft/file-upload/server/content/files/16153f31501189---gorub.pdfIn PDF document text
    • https://graphicart.ro/fckfiles/file/foneduxo.pdfIn PDF document text
    • https://simplehome.ro/ckfinder/userfiles/files/zogidimebesakudexuposi.pdfIn PDF document text
    • http://nattukoottam.com/userfiles/file/bikitatemuwudisez.pdfIn PDF document text
    • http://sxnqx.org/upload/file/Fl202109221455196123.pdfIn PDF document text
    • http://highspiritsmusic.com/ckfinder/userfiles/files/xametutodanan.pdfIn PDF document text
    • http://www.s4b.nl/upload/files/52945326634.pdfIn PDF document text
    • https://chinese-wall.tw/upload/files/lideguliloremunoke.pdfIn PDF document text
    • http://stroyvodservice.ru/upload/File/mebomewekuzudi.pdfIn PDF document text
    • https://lux-ride.com/home/u4-6pzgszajsb5u/www/lux-ride.com/public_html/ckeditortest_WORKING/ckfinder/userfiles/files/59537985961.pdfIn PDF document text
    • http://rpelektromont.cz/admin/obrazky/file/tepejogofuzametut.pdfIn PDF document text
    • http://www.kissdocs.com.au/wp-content/plugins/formcraft/file-upload/server/content/files/1614b73ff37bcc---nefepasokidiban.pdfIn PDF document text
    • http://pbpharm.com/upload/files/57970022860.pdfIn PDF document text
    • http://wsp.pl/userfiles/file/vojemajolok.pdfIn PDF document text
    • http://redeyeldn.com/userfiles/file/66459648344.pdfIn PDF document text
    • http://www.colegiometa.net/home/wp-content/plugins/formcraft/file-upload/server/content/files/1614f1ede499d3---20291128882.pdfIn PDF document text
    • http://biurod9.pl/public/userfiles/file/nevixewijolulimel.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_off0000c5ee.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xC5EE 16792 bytes
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1
font_01_sfnt_off0000de00.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xDE00 17936 bytes
SHA-256: b58caaf46f753c867263c89a1a9cbd9d1281fcb0b4484a54c5790ecfcae59aab
font_02_sfnt_off00010caf.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x10CAF 10224 bytes
SHA-256: 076d64eaf3c54fb2eda607a47721d0265cc0870bc2c00747b6d63a9278a18b1d

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