Malicious PDF — malware analysis report

Static analysis result for SHA-256 4e3d558a226a5d74…

MALICIOUS

PDF

74.1 KB Created: 2021-10-19 23:20:12 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2026-06-19
MD5: c0480f659151cbf2c20251ab6b08c472 SHA-1: a5cc2647a04789b7a5e73166c6e0d6e5a3ae9cce SHA-256: 4e3d558a226a5d74302f07d12665a2884a6138c82efdebfdb4f302142fbecff7
154 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9951

Heuristics 7

  • ClamAV: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0
  • Clickable URI points to raw IP address medium PDF_URI_IP_LITERAL
    PDF contains a clickable HTTP(S) action whose host is a literal IPv4 address. Legitimate documents normally link to named domains; raw-IP destinations are common in disposable phishing and malware-delivery infrastructure.
  • 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 https://cructi.ru/uplcv?utm_term=diccionario+reverso+traductor+frances+espa%C3%B1ol PDF link annotation
    • https://numen-wow.com/userfiles/cloud/files/48568933029.pdfIn PDF document text
    • https://makanbanyak.net/contents/files/rarebanevatu.pdfIn PDF document text
    • http://tekizolasyon.com/ckfinder/userfiles/files/71543657393.pdfIn PDF document text
    • http://oa30us.com/userfiles/file/12921319467.pdfIn PDF document text
    • http://sinostandards.net/upload/files/4104648665.pdfIn PDF document text
    • http://www.jacenter.org/js/ckfinder/userfiles/files/lutezom.pdfIn PDF document text
    • http://www.1000ena.com/wp-content/plugins/formcraft/file-upload/server/content/files/1615c3eba40a32---zemotoduzekaxojamaleb.pdfIn PDF document text
    • http://3asoft.vn/img/files/14964380851.pdfIn PDF document text
    • https://cobrawire.com/userfiles/files/30223746946.pdfIn PDF document text
    • http://stroi-sistema.ru/img/vizozezitowiduvegemorije.pdfIn PDF document text
    • http://vuatoyen.com/uploads/userfiles/file/pakomejakajip.pdfIn PDF document text
    • https://pointwebhost.com/calisma2/files/uploads/vibopam.pdfIn PDF document text
    • http://bk-plus.at/userfiles/files/jukufetilodapi.pdfIn PDF document text
    • https://phongkhamtamthan.net/uploadeditor/files/95751531851.pdfIn PDF document text
    • http://szpk.hu/_user/file/45906207431.pdfIn PDF document text
    • http://modelseafarm.com/kweb/ckfinder/userfiles/files/boluxoligazaberijejifib.pdfIn PDF document text
    • http://music-summer-courses.eu/upload/files/gunojepedunuji.pdfIn PDF document text
    • https://promobryansk.ru/userfiles/files/jufakepirojerutolikawow.pdfIn PDF document text
    • http://www.ruben.pl/ckfinder/userfiles/files/27411119673.pdfIn PDF document text
    • http://statsale.com/data/upload/ck/files/46317087108.pdfIn PDF document text
    • https://fotofidelity.cz/userfiles/file/72559610527.pdfIn PDF document text
    • http://157.230.241.115/image/upload/File/vegukexaxireteduvos.pdfPDF link annotation
    • http://yaqeen-eg.com/userfiles/file/fajemivenitesofarabuxedo.pdfIn PDF document text
    • http://oumkua.com/userfiles/file/615268181.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_off0000bbb5.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xBBB5 10984 bytes
SHA-256: 73228ec8bc8b1d07f42f76c016d524d0b9a5e6c3aa1cf0557776b39e99922bb9
font_01_sfnt_off0000d521.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xD521 16792 bytes
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1
font_02_sfnt_off0000ed33.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xED33 16936 bytes
SHA-256: 14622d5c3e90c419737ded1fe98f7c094a8ffbf286112ac2d3a7297d91bb24a4