Malicious PDF — malware analysis report

Static analysis result for SHA-256 c5d8e82271e077f4…

MALICIOUS

PDF

81.4 KB Created: 2021-10-30 06:17:36 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2026-06-27
MD5: df95dfac32d182f5c05efc85afffd2d0 SHA-1: 60aab10fea367444bc13e9ada9c773c4ca9774ef SHA-256: c5d8e82271e077f496f93a42a56b971a751b0e7a98ea2998514e41e2f785ae69
126 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9960

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://angkortaxiservice.com/userfiles/file/labaxafir.pdf In PDF document text
    • https://www.pharmawell.eu/ckfinder/userfiles/files/bidadejagamumo.pdfIn PDF document text
    • http://xn----otbbfbbknchz.xn--p1ai/sadm_files/50138072258.pdfIn PDF document text
    • http://3q1p.com/upload/file/210927042129231251arbwz9aacrbl.pdfIn PDF document text
    • http://phamtrangia.com/upload/files/xipunuxemaborib.pdfIn PDF document text
    • https://selispin.net/calisma2/files/uploads/vogapet.pdfIn PDF document text
    • https://pet-fashion.ro/mm/file/dufamomagogogonapovo.pdfIn PDF document text
    • http://formel1vermietung.de/userfiles/file/47339010837.pdfIn PDF document text
    • https://skvely-kup.cz/files/file/basijerulivitexuxugow.pdfIn PDF document text
    • https://www.mobytec.com.br/mobytec/wp-content/plugins/formcraft/file-upload/server/content/files/1613565c67fd75---lasowafusotolim.pdfIn PDF document text
    • http://retailjewellerindiaawards.com/userfiles/file/wapotun.pdfIn PDF document text
    • https://phm.vn/upload/files/pavujidu.pdfIn PDF document text
    • http://allamericannursing.com/userfiles/file/96469748571.pdfIn PDF document text
    • https://kanat.com/upload/ckfinder/files/75437325073.pdfIn PDF document text
    • https://realwebguys.com/wp-content/plugins/formcraft/file-upload/server/content/files/16166145b48869---87807532245.pdfIn PDF document text
    • https://weldingportal.it/userfiles/file/xudofizalizadorawojeru.pdfIn PDF document text
    • https://happycondo.leaddeehub.com/userfiles/files/xamopumetiwuf.pdfIn PDF document text
    • http://21cedu.com/pds/userfiles/files/31782023819.pdfIn PDF document text
    • http://ed-web.cz/userfilesfile/pededami.pdfIn PDF document text
    • http://tachikawa-derma.biz/ckfinder/userfiles/files/fivexozizadazolexeg.pdfIn PDF document text
    • https://farmaciasacoor.com/site/upload/file/begozirovemelokino.pdfIn PDF document text
    • https://jphotographyllc.com/userfiles/file/4090531154.pdfIn PDF document text
    • https://feedproxy.google.com/~r/Gsjc/~3/TxADE9PCSUw/uplcv?utm_term=trilogy+of+the+rat+book+seriesPDF link annotation
    • http://mustang.tom.ru/jsplugins/ckfinder/userfiles/files/kumadolaradogulovira.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_off0000d73e.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xD73E 10696 bytes
SHA-256: 356c3f3d1b48f1901aa14f5e058c430b15121be8dedfbb6b59af13acca209431
font_01_sfnt_off0000effa.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xEFFA 16792 bytes
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1
font_02_sfnt_off0001080c.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x1080C 18684 bytes
SHA-256: 3b2d668b1604ab9e19e8f4fa6616b119206a2709a8592374bf1ddb4b50ac25a5

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