Malicious PDF — malware analysis report

Static analysis result for SHA-256 aa8085430898a1a9…

MALICIOUS

PDF

77.7 KB Created: 2022-03-31 15:54:18 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2026-06-07
MD5: 42c59ba86111e563794e3c29f696dc67 SHA-1: 8aa252e5c6eb4719cf09ae5362c0d8065ec9f023 SHA-256: aa8085430898a1a97a643a2bf524e3e339f412ea400c92748e0e25c79f634af5
186 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9998

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
  • Small PDF contains mass external PDF link farm critical PDF_SEO_LINK_FARM
    Small PDF contains many clickable external PDF links, mostly clustered on one host. This matches generated SEO/link-farm PDF carriers used to route users into malicious or unwanted-software delivery chains, rather than a normal document citation pattern.
  • 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://adiwirawanbali.com/wp-content/plugins/super-forms/uploads/php/files/3453f59f402a6c67bf01ff93c4d00629/69668905733.pdf In PDF document text
    • https://nenarixu.weebly.com/uploads/1/3/4/8/134899789/zorikikevos.pdfIn PDF document text
    • http://sanruou.com/app/webroot/uploads/files/noponum.pdfIn PDF document text
    • https://nitevugumosu.weebly.com/uploads/1/3/4/5/134526644/tusonajiwurom_gekike.pdfIn PDF document text
    • http://zzzwchem.com/upload/files/20416878545.pdfIn PDF document text
    • https://tisirobe.weebly.com/uploads/1/3/4/6/134699904/3663289.pdfIn PDF document text
    • https://gokewulifas.weebly.com/uploads/1/3/4/5/134599519/6424621.pdfIn PDF document text
    • https://zejaxosadakawur.weebly.com/uploads/1/3/4/3/134372542/5e8bf68564949.pdfIn PDF document text
    • https://bepagiji.weebly.com/uploads/1/3/4/3/134352373/xolutawitagikutupufa.pdfIn PDF document text
    • https://tsolisp.com/files/file/kerekineditenupid.pdfIn PDF document text
    • http://maurovalleferroarchitetto.eu/userfiles/files/38545963341.pdfIn PDF document text
    • http://thsport.dk/ckfinder/userfiles/files/83961898127.pdfIn PDF document text
    • https://bilunoxenaxu.weebly.com/uploads/1/3/4/4/134474733/89ce9a111.pdfIn PDF document text
    • https://wifibeferodis.weebly.com/uploads/1/4/1/2/141253823/2280267.pdfIn PDF document text
    • https://nitorotejixet.weebly.com/uploads/1/3/6/0/136082153/5219350.pdfIn PDF document text
    • http://www.shipsupply.co.mz/wp-content/plugins/formcraft/file-upload/server/content/files/1622befd3c494d---jefemokok.pdfIn PDF document text
    • https://mifuj.co.za/YmrXLWy8?keyword=%D0%BD%D0%B0%D1%83%D1%88%D0%BD%D0%B8%D0%BA%D0%B8%20motorola%20verve%20buds%20100%20black%20PDF 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_off0000b8a7.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xB8A7 12048 bytes
SHA-256: ca7b6f0cd59d093cd59d022d2959a7a4b81cd6e9a5d9cde74c3b0a53ea19329d
font_01_sfnt_off0000d500.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xD500 23004 bytes
SHA-256: 7bf61b59a87c02fc6ab27fcd8ebf078b236e238d2c0a3ca4e5291b978e9213a3
font_02_sfnt_off00010ddb.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x10DDB 16792 bytes
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1

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