Malicious PDF — malware analysis report

Static analysis result for SHA-256 aa8989c9ad021718…

MALICIOUS

PDF

78.1 KB Created: 2021-10-08 00:13:33 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2026-06-06
MD5: 8e8c286904249c326a429ccf53253e22 SHA-1: ee92b2bf952e3fa0b75b0918a06d2d3c9e3f7fae SHA-256: aa8989c9ad0217181e48525eb8d9da84ef7a91d6487f4c0c5ff5f90f5753ea99
126 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9978

Heuristics 5

  • ClamAV: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0
  • 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://allytemp.ru/uplcv?utm_term=best+song+for+grandmother PDF link annotation
    • http://geometracosentino.com/userfiles/files/55145852299.pdfIn PDF document text
    • http://ibexquimica.com.br/ckfinder/userfiles/files/zokukegugo.pdfIn PDF document text
    • https://liantoong.com/archive/upload/files/tusalupekivudewowufokan.pdfIn PDF document text
    • http://sasnowosielski.com/ckfinder/userfiles/files/19953933890.pdfIn PDF document text
    • https://agrando.cz/files/file/dataj.pdfIn PDF document text
    • https://theelementrama9.com/userfiles/files/58837080579.pdfIn PDF document text
    • http://metamorfoza-krosno.pl/userfiles/file/gobuwosugolotef.pdfIn PDF document text
    • https://aftaplan.com/works/peepsparty/html/upload_files/file/vowapuwuduwugelar.pdfIn PDF document text
    • http://abwmechanicsville.com/uploads/files/lirawonokugukerekew.pdfIn PDF document text
    • http://resurrection-life.net/userfiles/files/pigelinolivivulenagi.pdfIn PDF document text
    • https://redac.ch/upload/25281971993.pdfIn PDF document text
    • https://doublehair.center/upload/ckfinder/files/jawojewevoxamefidok.pdfIn PDF document text
    • http://www.puhito.hu/uploads/11446861836.pdfIn PDF document text
    • https://activepymes.com/pub/file/relijerogafiris.pdfIn PDF document text
    • https://jhservice.net/imagenes/galeria/files/76394215567.pdfIn PDF document text
    • https://pharma-tools.pl/galeria/file/23076101021.pdfIn PDF document text
    • http://www.kymenhome-etsinta.net/tiedostot/files/doferoz.pdfIn PDF document text
    • https://contemporaryteas.in/admin/uploads/file/16201255700.pdfIn PDF document text
    • http://leeharringtonhomes.com/userfiles/file/pofefejemutalar.pdfIn PDF document text
    • https://icrs-as.com/userfiles/file/3677766976.pdfIn PDF document text
    • https://www.mercato.co.za/wp-content/plugins/formcraft/file-upload/server/content/files/161594654efa16---59855909591.pdfIn PDF document text
    • https://inmaabiladi.com/userfiles/files/sokim.pdfIn PDF document text
    • https://takarasushimn.com/userfiles/files/musimajakixipotipabotumi.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_off0000cde1.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xCDE1 17520 bytes
SHA-256: 2c43dc3c4adc553c16e6422e1a7b524686e4d31ac0ced9506962bf3cf8ebf210
font_01_sfnt_off0000fab1.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xFAB1 16792 bytes
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1
font_02_sfnt_off000112c8.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x112C8 10716 bytes
SHA-256: 29649d87187b34024ee352e2e0407507b435a9a337577f3946e43c9f7c972d51

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