Malicious PDF — malware analysis report

Static analysis result for SHA-256 cd7368d3e054eaf7…

MALICIOUS

PDF

84.9 KB Created: 2021-10-27 02:32:46 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2026-06-18
MD5: 088c51c6ebdcd422f4df3b9a5856757c SHA-1: 5c143361cc3cf3c5a1a90229160d6827c11a96e9 SHA-256: cd7368d3e054eaf7a07a1f56a272f0fa12f276ff7812feae53475999063164eb
166 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9977

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 to algorithmically-generated URL high PDF_RANDOM_URL_LINK
    PDF contains a clickable HTTP(S) link whose host looks algorithmically generated (pronounceable-random labels) and whose path/query carries a long high-entropy token. This is the randomized-redirector pattern of malspam phishing lures — the visible document is only a prompt — not a PDF parser vulnerability.
  • 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 http://www.mtpartnersfl.com/wp-content/plugins/formcraft/file-upload/server/content/files/1613cdcb283c49---dizuka.pdf In PDF document text
    • https://dichvuketoansg.com/luutru/files/wurezubunowuzevitisuga.pdfIn PDF document text
    • http://xn--80aguejfegacgj0ad.xn--p1ai/pict/file/dagasedusiwerideze.pdfIn PDF document text
    • http://xinnethk.com/userfiles/file/20671850438.pdfIn PDF document text
    • http://vipnjl.com/userfiles/files/80025214966.pdfIn PDF document text
    • http://lgassociates.in/uploads/83440778420.pdfIn PDF document text
    • http://win-sonic.com/ck_imgs/files/widorajuwup.pdfIn PDF document text
    • https://aglogistics-bo.net/userfiles/file/25335585224.pdfIn PDF document text
    • http://cannamelis.com/userfiles/file/tawagunaloluwefug.pdfIn PDF document text
    • http://coquicart.com/ckeditor/ckfinder/core/connector/php/uploads/files/mazogaxonaxas.pdfIn PDF document text
    • http://gift-founder.com/archive/upload/files/zofoniludojopewobikit.pdfIn PDF document text
    • http://mobilahomedesign.com/userfiles/files/86885010543.pdfIn PDF document text
    • https://5udua.com/contents/files/xetijumole.pdfIn PDF document text
    • http://placidlakes.com/larpm/uploads/file/wuwotarunor.pdfIn PDF document text
    • http://tuttotop.com/userfiles/files/tamun.pdfIn PDF document text
    • https://812423.qqtogeljackpot2.com/contents/files/34392875448.pdfIn PDF document text
    • http://solyaris.pro/admin/ckfinder/userfiles/files/vajasorizid.pdfIn PDF document text
    • http://mfcwestenkwartier.nl/beta/userfiles/file/netixi.pdfIn PDF document text
    • https://takarasushimn.com/userfiles/files/71774499791.pdfIn PDF document text
    • http://somsit.com/ckfinder/userfiles/files/15550583157.pdfIn PDF document text
    • http://ambulatorioveterinarioilghirlandaio.it/userfiles/files/88157820150.pdfIn PDF document text
    • http://www.azurwelcomeservices.com/userfiles/file/60324593064.pdfIn PDF document text
    • http://vcelari.naceradec.cz/includes/ckfinder/userfiles/files/12763320804.pdfIn PDF document text
    • https://feedproxy.google.com/~r/Gsjc/~3/7xhmvLXWVJc/uplcv?utm_term=microsoft+office+excel+tutorial+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_off0000e875.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE875 10704 bytes
SHA-256: 501ab72e6cf665bc40e4733dbead9c654317dffd4e217cc41e8096fa6ec0ddab
font_01_sfnt_off00010135.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x10135 16792 bytes
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1
font_02_sfnt_off00011947.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x11947 17196 bytes
SHA-256: 83189647cb37d2edf57a3124bf889e28e6a2fe03fe4667741e811adf53ee5735