Malicious PDF — malware analysis report

Static analysis result for SHA-256 a4fc8313babb10e3…

MALICIOUS

PDF

76.4 KB Created: 2022-04-11 14:42:22 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2026-07-02
MD5: e2058a75b22eb0cb02ae1be75001349b SHA-1: 7661824f67c2fada4ffaf41da2060869e168bd6f SHA-256: a4fc8313babb10e3408a849a43a29de754347045a8583307461aa4a87e61f99e
126 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9954

Heuristics 5

  • ClamAV: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0
  • 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://podar.co.za/YmrXLWy8?keyword=which%20xbox%20one%20controller%20has%20bluetooth PDF link annotation
    • https://xiwabedosebu.weebly.com/uploads/1/3/1/3/131398066/e7b420367.pdfIn PDF document text
    • https://biirbeh.mn/images/content/file/guzojudigefu.pdfIn PDF document text
    • https://rugerwafers.com/demo/ruger/beta/userfiles/files/34732684427.pdfIn PDF document text
    • http://automsystem.com/UploadFile/file/20220315220331473.pdfIn PDF document text
    • http://bradzo-ep.com/uploads/files/renatabizoxiponu.pdfIn PDF document text
    • http://jinyilvye.com/upload/62051089954.pdfIn PDF document text
    • http://magendans.com/imagefiles/file/rolumovifiguwid.pdfIn PDF document text
    • https://www.scrs.in/kcfinder/upload/files/wiluf.pdfIn PDF document text
    • https://riginujer.weebly.com/uploads/1/3/2/6/132695799/abe47e52d25e0e.pdfIn PDF document text
    • https://komiwafaka.weebly.com/uploads/1/3/2/7/132712661/vedemu_guxezokeporos.pdfIn PDF document text
    • http://haiannweb.com/uploads/files/7482448789.pdfIn PDF document text
    • http://anais.terminarz.online/kosmetyczka/krakow/files/velimoxisi.pdfIn PDF document text
    • http://manchesternh298.org/kcfinder/upload/files/pufipokalaxedetojo.pdfIn PDF document text
    • http://taixingchem.com/uploadfile/file/20220208135032676.pdfIn PDF document text
    • https://www.projectorrentals.com/wp-content/plugins/formcraft/file-upload/server/content/files/16252abe5357de---49932010113.pdfIn PDF document text
    • https://reytrans.es/kcfinder/upload/files/15901375199.pdfIn PDF document text
    • https://kofenamuw.weebly.com/uploads/1/3/4/9/134900453/zuvixetimonazofadu.pdfIn PDF document text
    • http://www.combatsim.eu/wp-content/plugins/formcraft/file-upload/server/content/files/1624d9e50efdfc---makuzapenuvu.pdfIn PDF document text
    • https://ezokniga.com/uploads/file/wopipewa.pdfIn PDF document text
    • https://ragusixiseditof.weebly.com/uploads/1/3/0/8/130814169/954c1.pdfIn PDF document text
    • https://openkomm.yussfone-crm.com/userfiles/file/79345540129.pdfIn PDF document text
    • http://siva.re/app/webroot/js/kcfinder/upload/files/78986678262.pdfIn PDF document text
    • http://xn--pbtp5wdvx.com/userfiles/files/vuvozi.pdfIn PDF document text
    • https://fenicia.uy/fenicia.com.uy/uploads/files/fisabenevuguv.pdfIn PDF document text
    • http://www.kickcommerce.com/userfiles/file/95055075982.pdfIn PDF document text
    • http://artecgroupservices.com/imagenes/file/kelolozesemipakajewedig.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_off0000c5b1.bin)
    • http://dejavu.sourceforge.net/wiki/index.php/LicenseIn extracted file (font_00_sfnt_off0000c5b1.bin)

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000c5b1.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xC5B1 17340 bytes
SHA-256: 891f880e26220d36a604fd3ea3918ddf86c36652508e62b39b78645e9fc18974
font_01_sfnt_off0000f2cd.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF2CD 10660 bytes
SHA-256: ce0870fa0085b2d6ad275775c24b2f2a1aaf681c18a0b693a0db11a32778005a
font_02_sfnt_off00010b39.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x10B39 16792 bytes
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1