Malicious PDF — malware analysis report

Static analysis result for SHA-256 aa890a90d5da71df…

MALICIOUS

PDF

168.8 KB Created: 2022-05-08 16:46:14 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2026-06-06
MD5: f7f1bda83e3ae6169a6b3009a439da81 SHA-1: 41b5b22525cda0ad4b4a36e476b7dc2f8c6e1716 SHA-256: aa890a90d5da71df6a79eca90b1a6f54dc3a3043afa388dd193a66ad65b1e6bf
126 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9940

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://fecuq.co.za/YmrXLWy8?keyword=bicmos%20fabrication%20in%20an%20n-well%20process%20pdf%20online%20free%20pdf%20filler PDF link annotation
    • http://vietsaovang.com/uploads/userfiles/file/23563741043.pdfIn PDF document text
    • http://haki.tincorner.com/uploads/files/muxigivure.pdfIn PDF document text
    • http://olympicthesportshop.in/uploads/35729361703.pdfIn PDF document text
    • http://ashop.26srv.de/entwicklungsumgebung/ashop/user_ashop/cms_images/files/vepisulofodevefaxuxexiv.pdfIn PDF document text
    • http://www.f2dassociates.com/userfiles/file/61654560661.pdfIn PDF document text
    • https://www.hotelamoha.it/wp-content/plugins/formcraft/file-upload/server/content/files/1624bd4500ec02---fukurosiz.pdfIn PDF document text
    • https://lexcochoralsoc.org/demo/lccs/beta/userfiles/files/70060894556.pdfIn PDF document text
    • https://www.fukuyama-ramen.com/editors/kcfinder/upload/files/55905994625.pdfIn PDF document text
    • http://kumarhospitaljabalpur.com/singhania/downloads/file/87330639146.pdfIn PDF document text
    • http://sportschoolindex.nl/images/uploads/saxekajeluwanorave.pdfIn PDF document text
    • https://soferivajateru.weebly.com/uploads/1/3/4/6/134650686/tazupup.pdfIn PDF document text
    • https://pukaxonimuno.weebly.com/uploads/1/3/4/4/134435323/taferofexiresed-xikolokabik-pasikogob.pdfIn PDF document text
    • https://edcasys.com/ci/userfiles/files/60688630633.pdfIn PDF document text
    • http://spec-so.ru/sites/default/files/file/72716951385.pdfIn PDF document text
    • http://vouchertiket.com/airplane/ckeditor/uploads/files/27039439636.pdfIn PDF document text
    • https://julerimubogum.weebly.com/uploads/1/4/1/5/141585957/3313781.pdfIn PDF document text
    • https://dojiladise.weebly.com/uploads/1/3/1/3/131379401/xedatowuvojip_zefebaw_wukaku_tufemerigas.pdfIn PDF document text
    • https://majizozu.weebly.com/uploads/1/3/4/5/134598595/fabojivebubome.pdfIn PDF document text
    • http://lyzjkgm.com/d/files/bozugawetogogewam.pdfIn PDF document text
    • http://kaufdeinauto.de/wp-content/plugins/formcraft/file-upload/server/content/files/1623cc17790756---gipiroru.pdfIn PDF document text
    • http://mamtomchabahai.com/uploads/files/files/mixulaxewujarorekap.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_off000234f5.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x234F5 16792 bytes
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1
font_01_sfnt_off00024d07.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x24D07 17580 bytes
SHA-256: 7388d44319b483c28fd905f1e6d2285ac6492321037448fdc6302b528e2c3c53
font_02_sfnt_off00027b63.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x27B63 11096 bytes
SHA-256: b2176bcecb90f8ef2c2402f0dbac4871a1d9ff18e5b2e48f7d2118e7d635c98e

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