Malicious PDF — malware analysis report

Static analysis result for SHA-256 011b9e72609b79ad…

MALICIOUS

PDF

85.8 KB Created: 2021-09-10 02:15:41 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2026-05-28
MD5: acdd5b223f215d15d28ca07bc7d1fd38 SHA-1: fc35ef9359a685b47b639c4a8657dd25ad99f184 SHA-256: 011b9e72609b79adc7f37a74fdc1a13b512789b0d8258edbeace5fff5b7ac000
134 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
  • 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.
  • Embedded JS stream low PDF_JS
    PDF references a /JS stream. Generic JavaScript is common in benign forms; specific dangerous APIs are scored by separate rules.
  • 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://modern-pro.ru/files/file/lopoxopugupavugelofak.pdf In PDF document text
    • http://b-solutions.net/userfiles/file/xewudimisosasuluxobase.pdfIn PDF document text
    • http://www.lovebliss.tw/UserFiles/files/97321228856.pdfIn PDF document text
    • http://insfilings.com/skyzone_classic/upload/files/85352311781.pdfIn PDF document text
    • http://salukool.ee/upload/userfiles/file/wawivop.pdfIn PDF document text
    • http://naitikfashions.com/ckfinder/userfiles/files/62695697220.pdfIn PDF document text
    • https://www.costaverde.it/wp-content/plugins/formcraft/file-upload/server/content/files/1612edc4102f42---64759864211.pdfIn PDF document text
    • http://etenindex.nl/images/uploads/febemadexu.pdfIn PDF document text
    • http://clubesquilacoma.com/uploads/files/reweradomejasemeroxola.pdfIn PDF document text
    • https://kingcarmotorista.net/uploads/files/53586388745.pdfIn PDF document text
    • http://backupcenters.com/userfiles/file/2192325821.pdfIn PDF document text
    • http://docando.es/js/ckfinder/userfiles/files/33249860690.pdfIn PDF document text
    • http://appextskihjthj.handysociality.com/upload/files/gagidawugesamiguj.pdfIn PDF document text
    • http://www.tobywells.org/media/fckdir/file/goruduxiwagiputaxu.pdfIn PDF document text
    • http://someteme.com/archivos/_20210903031906.pdfIn PDF document text
    • https://tatsolarlight.com/uploads/files/23404090922.pdfIn PDF document text
    • https://cicasoftavukatwebsitesi.demowebsiteleri.com/upload/files/buvugixutogikajodaz.pdfIn PDF document text
    • https://cffcommunications.nl/wp-content/plugins/formcraft/file-upload/server/content/files/1/16131f39abcc19---29513401875.pdfIn PDF document text
    • https://fier-forjat-valimet.ro/ckfinder/userfiles/files/24081767444.pdfIn PDF document text
    • http://dongphat.net/upload/files/50891723988.pdfIn PDF document text
    • https://sieuthimaycafe.vn/uploads/file/18499471784.pdfIn PDF document text
    • http://fisioterapiasuzzara.it/userfiles/files/78275185985.pdfIn PDF document text
    • https://ssmavidiyar.com/public/content-images/files/madulixat.pdfIn PDF document text
    • https://www.gico.ge/ckfinder/userfiles/files/tirexisutafewiwutarez.pdfIn PDF document text
    • https://feedproxy.google.com/~r/Uplcv/~3/S30rS-6n6vg/uplcv?utm_term=download+mp4+to+mp3+converter+for+pcPDF 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_off0000e94c.bin)
    • http://dejavu.sourceforge.net/wiki/index.php/LicenseIn extracted file (font_00_sfnt_off0000e94c.bin)

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000e94c.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE94C 16792 bytes
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1
font_01_sfnt_off00010163.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x10163 10924 bytes
SHA-256: fb3805b12ad2477b4d1775cb18fc45ba8980f3a4d8d7c1a5c4a7554b96323dea
font_02_sfnt_off00011acc.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x11ACC 17912 bytes
SHA-256: 0735e53c0031c2dfc6c3452966dea3c8ff7fb52a7e09738339a0e812ec727e75