Malicious PDF — malware analysis report

Static analysis result for SHA-256 793f50e97a769d3d…

MALICIOUS

PDF

82.2 KB Created: 2021-10-10 23:50:44 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2026-06-15
MD5: 037851b57ae14a70d0834cd7ec906c86 SHA-1: 60c9db14b54532a6b240f2cc723073ffeb1d9983 SHA-256: 793f50e97a769d3d4182e7aa646052263b1fe9ef75286bd63eaa103409f0185d
146 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9955

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.
  • Callback phishing phone lure medium SE_CALLBACK_LURE
    Document asks the user to call a phone number in billing, refund, subscription, fraud, or security context — consistent with callback phishing or tech-support scam patterns. Suppressed for legitimate-issuer (IRS/gov/official-form) or Microsoft license-boilerplate documents that carry no urgency or charge/dispute escalation.
  • 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://oniceh.ru/uplcv?utm_term=the+art+of+interviewing+pdf PDF link annotation
    • http://velkoobchod-man.eu/ckfinder/userfiles/files/vonegut.pdfIn PDF document text
    • https://www.multilandtours.com/assets/ckfinder/userfiles/files/gilobetezajaxipukat.pdfIn PDF document text
    • http://www.physedu.in/newsite/userfiles/files/83552575225.pdfIn PDF document text
    • http://mlsite.gewoozee.tw/custom/file/veludodinokigexiva.pdfIn PDF document text
    • http://cheapmarkt.com/userfiles/file/74675936443.pdfIn PDF document text
    • http://ch-yang.com/upload/files/patemava.pdfIn PDF document text
    • http://artpolyclinic.com/file/files/kivovoburizajemejo.pdfIn PDF document text
    • http://x-site.by/upload/editor/files/budolufenudowijozog.pdfIn PDF document text
    • http://ttlengenharia.com.br/wp-content/plugins/formcraft/file-upload/server/content/files/1614475be81d7f---74108529362.pdfIn PDF document text
    • http://grafittipng.com/userfiles/files/xaxonadut.pdfIn PDF document text
    • https://agsposure.org/wp-content/plugins/super-forms/uploads/php/files/10386af96d862f6f1c85d803547326c7/70554325167.pdfIn PDF document text
    • http://jcpingie.be/public/files/63968260240.pdfIn PDF document text
    • https://art4you.sk/editor_uploads/system/files/xuduti.pdfIn PDF document text
    • https://testpensija.bankai.lv/ckfinder/userfiles/files/bokefiv.pdfIn PDF document text
    • https://adminico.nl/userfiles/file/kowejonesenugitefofilebe.pdfIn PDF document text
    • https://nezamirekhaseafoods.com/userfiles/file/gozanefesujulusokeguwefer.pdfIn PDF document text
    • https://wickedcheesy.com/images/file/vojul.pdfIn PDF document text
    • http://cartonwrappingmachine.com/userfiles/file/26557703216.pdfIn PDF document text
    • http://yugang360.com/upload_fck/file/2021-10-9/20211009135817562542.pdfIn PDF document text
    • https://jechrina.gr/FCKeditor/userimages/file/4893073759.pdfIn PDF document text
    • http://vibrobreaker.com/files/files/zanulemitegugi.pdfIn PDF document text
    • https://blsautomation.com/ckfinder/userfiles/files/55529047620.pdfIn PDF document text
    • http://sanchariglobal.com/userfiles/file/vewefakowalupa.pdfIn PDF document text
    • https://hoatuoi360.vn/uploads/files/nifubopepunukej.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_off0000d750.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xD750 10676 bytes
SHA-256: 7456b2cf737ca9c026d07708353984ba779516026efa3c71f38f0747c1f6219d
font_01_sfnt_off0000ef94.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xEF94 16792 bytes
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1
font_02_sfnt_off000107a6.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x107A6 20156 bytes
SHA-256: 4be444d688fd0500ae8c15a61efee0e6fe38fe8e6f6ded0fffe5a0b0b3bde739