Malicious PDF — malware analysis report

Static analysis result for SHA-256 4e3aa409f94b4e73…

MALICIOUS

PDF

85.9 KB Created: 2021-11-15 14:20:03 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2026-06-19
MD5: 6981a59660e7afd7b7fb1bab68eb8473 SHA-1: 8e6b16dfc75dc93dfb2fb87601a11ce654d6dcf1 SHA-256: 4e3aa409f94b4e73646702cb52eb2084842212b51719d39e9d560c6babe71087
156 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
  • PDF link farm points to compromised-WordPress upload storage medium PDF_COMPROMISED_CMS_UPLOAD_LINK_FARM
    PDF contains multiple clickable links, across many distinct hosts, whose targets are random-slug files parked in the upload directories of vulnerable WordPress form plugins (FormCraft, Super Forms). This is the hallmark of the 'free document/template' SEO phishing PDF family, which ranks for search queries and routes users into payload/redirect chains hosted on compromised sites. The PDF itself carries no exploit — the risk is the linked destinations.
  • 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://democv.associasuite.com/imagenes/contenidos/files/84636008892.pdf In PDF document text
    • https://dsodrecital.com/wp-content/plugins/formcraft/file-upload/server/content/files/16191008e43321---toxesinabodomov.pdfIn PDF document text
    • http://yeongwonenc.com/userfiles/file/81797234699.pdfIn PDF document text
    • http://www.ghidmariaj.ro/app/webroot/files/ckfinder/userfiles/files/61968761343.pdfIn PDF document text
    • http://www.stadion-zarya.ru/ckfinder/userfiles/files/64296681609.pdfIn PDF document text
    • https://narellesastro.com/userfiles/files/82511708497.pdfIn PDF document text
    • https://bdaudit.topham.ro/userfiles/file/todutilafudog.pdfIn PDF document text
    • http://teresachild.com/upload/files/kezatupejafe.pdfIn PDF document text
    • https://duhocblueocean.vn/ckfinder/userfiles/files/84659165709.pdfIn PDF document text
    • http://agroanaliz.by/upload/editor/files/51340428259.pdfIn PDF document text
    • http://packagingandfoodmachinary.com/userfiles/file/94391098774.pdfIn PDF document text
    • http://www.itbaloch.com/wp-content/plugins/formcraft/file-upload/server/content/files/1616ed2747622a---bumefufitokavajebenu.pdfIn PDF document text
    • http://hellnocancershow.com/wp-content/plugins/formcraft/file-upload/server/content/files/161334ed78bde2---60760843815.pdfIn PDF document text
    • https://littleitalypizzany.com/nbloom/fckuploads/file/rikaxuxefarexolu.pdfIn PDF document text
    • http://netcentricnj.com/ckfinder/userfiles/files/sinevidugaw.pdfIn PDF document text
    • http://yaqeen-eg.com/userfiles/file/35175157258.pdfIn PDF document text
    • https://clinicscrm.com/img/files/bumovefelilanelusuk.pdfIn PDF document text
    • https://hwayinn.com/image/files/20211104_105730.pdfIn PDF document text
    • https://mgs-on-track.com/uploads/misc/files/48696174134.pdfIn PDF document text
    • http://synergienetwork.net/userfiles/file/loluzizepipurukem.pdfIn PDF document text
    • http://naim.naparts.com/images/fck/file/gajoved.pdfIn PDF document text
    • http://exteractif.fr/pictures/2/boxojalirumituri.pdfIn PDF document text
    • http://www.salac.cz/ckfinder/userfiles/files/78229827658.pdfIn PDF document text
    • https://subhagataguesthouse.com/userfiles/file/38330467878.pdfIn PDF document text
    • http://vasvaripalmuzeum.hu/upload/file/nuwotesofuxuja.pdfIn PDF document text
    • http://feedproxy.google.com/~r/MbOu/~3/7xhmvLXWVJc/uplcv?utm_term=technical+traders+guide+to+computer+analysis+of+the+futures+market+pdfPDF 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 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_off0000e58b.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE58B 19040 bytes
SHA-256: 06bb312cd774a46dcc6a8f86222ae46a447b271d203bdc25862bb2ae38069580
font_01_sfnt_off0001177f.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x1177F 16540 bytes
SHA-256: 45015263e28dbf00792e0fa83ae0fb9123af5110209f191c00797c49350166ef
font_02_sfnt_off00012ea5.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x12EA5 11336 bytes
SHA-256: cc31c3aee143a2458433931fa3062c1231c2947c62a7e57c54877bb81ad14713