Malicious PDF — malware analysis report

Static analysis result for SHA-256 4de28a37309dd7d5…

MALICIOUS

PDF

98.0 KB Created: 2022-04-18 22:54:22 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2026-04-29
MD5: 1ae3131306db8bb62cb4246aa2e97ded SHA-1: cc86ed129daddc815c0e361b98b965182620bf0e SHA-256: 4de28a37309dd7d524049968d8e3201c3d8dbbc19244c92fd741c9b32270171a
126 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9994

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://loheb.co.za/YmrXLWy8?keyword=electrical%20engineering%20technology%20degree%20jobs PDF link annotation
    • https://jiranunurojowoz.weebly.com/uploads/1/3/1/8/131860868/befilutefunaz.pdfIn PDF document text
    • http://tranindo.com/Uploads/userfiles/files/22650351026.pdfIn PDF document text
    • https://hotelristorantenovecento.it/wp-content/plugins/super-forms/uploads/php/files/3c2e987ada1060dc745fa18c07c92371/pedonunenofovunabot.pdfIn PDF document text
    • http://www.farmaciapenil.es/userfiles/files/nadixosolonenuninaki.pdfIn PDF document text
    • http://studionegrelli.it/userfiles/files/37024290825.pdfIn PDF document text
    • http://qianxish.com/ckfind_image/files/14607310943.pdfIn PDF document text
    • https://kuboniboxalet.weebly.com/uploads/1/4/1/2/141280911/fakedezekura.pdfIn PDF document text
    • https://muktts.com/ckupload/files/33081952181.pdfIn PDF document text
    • https://ruvedusipokowu.weebly.com/uploads/1/3/0/8/130813644/zovubupup-xidureririz-xusuxegi.pdfIn PDF document text
    • http://tuongnguyenthientu.com/tkp/ckfinder/userfiles/files/43308660896.pdfIn PDF document text
    • https://pevolevu.weebly.com/uploads/1/3/1/6/131606362/565041.pdfIn PDF document text
    • https://paintingwithapassion.com/nbloom/fckuploads/file/tetexowima.pdfIn PDF document text
    • https://abss.pt/userfiles/file/7529209713.pdfIn PDF document text
    • https://puguguduzi.weebly.com/uploads/1/3/0/7/130739618/9975537.pdfIn PDF document text
    • https://libepipo.weebly.com/uploads/1/4/1/3/141389389/89e88881efc34.pdfIn PDF document text
    • http://bikipvuikhoedep.com/app/webroot/files/editor_upload/files/wisiledamotutere.pdfIn PDF document text
    • http://fapannimario.it/userfiles/files/nubijiwekuzezagafigozuset.pdfIn PDF document text
    • https://www.coltishallclinic.co.uk/dashboard/ckeditor/kcfinder/upload/files/16033258321.pdfIn PDF document text
    • https://acrgroup.nl/userfiles/file/61948670051.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 extracted file (font_00_sfnt_off00011967.bin)
    • http://dejavu.sourceforge.net/wiki/index.php/LicenseIn extracted file (font_00_sfnt_off00011967.bin)

Related samples 4

Ranked by shared artifacts, heuristics, extracted URLs, CVEs, and signatures.

Full JSON: related samples API

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00011967.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x11967 11016 bytes
SHA-256: b1e9e3aff92978d160c1ddda81e2844349ea51a55d76aed4d997e39e5bdba2f4
font_01_sfnt_off000132ae.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x132AE 16792 bytes
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1
font_02_sfnt_off00014ac0.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x14AC0 17636 bytes
SHA-256: 19aaba3b28fbfb467d406bfb7857304914858df3adcf2a0e3aa5682c74ca7750

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