Malicious PDF — malware analysis report

Static analysis result for SHA-256 cb81e29fd991b06c…

MALICIOUS

PDF

75.7 KB Created: 2022-04-24 02:32:02 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2026-05-09
MD5: fb555558debedd2f4084d6cb95d29274 SHA-1: 9da8ce083e71661d7435921c35700e2ed2276a62 SHA-256: cb81e29fd991b06c3370cf9f2c3608d7f77d3da44c4b7307d0323e4ea307e0e8
151 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9993

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
  • PDF advertises pirated movie streaming/download medium PDF_PIRACY_STREAMING_LURE
    PDF rendered text advertises free full-movie streaming or download using piracy-brand names or a 'full movie + download/free/watch' intent phrase — recovered after folding the styled Unicode confusables the campaign uses to hide those keywords from plain-text detection. These are disposable SEO-spam carriers that route users to malvertising, fake-player, and scam pages; the PDF itself is inert.
  • 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://sunuf.co.za/YmrXLWy8?keyword=digital%20marketing%20executive%20job%20description%20sample PDF link annotation
    • http://www.pilartangguh.com/file/49606622398.pdfIn PDF document text
    • https://motelandratecuci.ro/userfiles/file/zulanaduv.pdfIn PDF document text
    • http://scouttautomotive.com/editor_uploads/system/files/21391574972.pdfIn PDF document text
    • https://kiwiwutirove.weebly.com/uploads/1/3/4/7/134707888/7267319.pdfIn PDF document text
    • https://pagajunudew.weebly.com/uploads/1/3/5/9/135992687/jabazamajaju.pdfIn PDF document text
    • https://gukaguse.weebly.com/uploads/1/3/1/3/131398473/8938771.pdfIn PDF document text
    • https://ud-hobby.com/images/Upload/file/jubebezomep.pdfIn PDF document text
    • http://anpo.vn/upload/files/nuxigaruzut.pdfIn PDF document text
    • http://reginahajo.hu/_user/file/sananoku.pdfIn PDF document text
    • https://generace89.cz/kcfinder/upload/files/jakilekifareropul.pdfIn PDF document text
    • http://architettipassarinmarzotto.com/userfiles/files/13536087961.pdfIn PDF document text
    • https://webgirls-studio.com/wp-content/plugins/formcraft/file-upload/server/content/files/1624192b4467f4---723235523.pdfIn PDF document text
    • https://best-turbos.com/wp-content/plugins/super-forms/uploads/php/files/6dc243349e4275b53d2be2fd81a2a919/98735882167.pdfIn PDF document text
    • https://equantumconsulting.com/files/files/mutozupu.pdfIn PDF document text
    • http://axiomestates.com/userfiles/file/gudiwojikobakodonobazuz.pdfIn PDF document text
    • http://reputesystems.com/app/webroot/uploads/files/60182521186.pdfIn PDF document text
    • https://penal-garazh.ru/files/manorolepivefofurifozegu.pdfIn PDF document text
    • https://amoslodge10-org.alljobsinliberia.com/ckfinder/userfiles/files/xusajipujewazudoxub.pdfIn PDF document text
    • https://rezunodi.weebly.com/uploads/1/3/4/3/134368031/8769716.pdfIn PDF document text
    • http://aydinservis.com/ckfinder/userfiles/files/toxamorilesut.pdfIn PDF document text
    • http://asiakingtravel.com/public/cuploads/files/ralorugodumadamufebox.pdfIn PDF document text
    • http://nextgems.com/ckeditor/kcfinder/upload/files/33141795297.pdfIn PDF document text
    • https://euchebnici.com/img/file/82626405015.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 extracted file (font_00_sfnt_off0000c16a.bin)
    • http://dejavu.sourceforge.net/wiki/index.php/LicenseIn extracted file (font_00_sfnt_off0000c16a.bin)

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000c16a.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xC16A 11488 bytes
SHA-256: 876b151ac5f04b2d3d2a0ab5870d5bded47ac1d0f0c04e5d05ed5e63442a7c45
font_01_sfnt_off0000dc29.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xDC29 16792 bytes
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1
font_02_sfnt_off0000f43b.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF43B 16924 bytes
SHA-256: bb45c46b2837a177b2c73f18e9705ab7f6c60cfef786a122f9adc14273810eda