Malicious PDF — malware analysis report

Static analysis result for SHA-256 af2d235dd49dd585…

MALICIOUS

PDF

153.6 KB Created: 2025-11-27 18:22:31 +02:00 Authoring application: 376377000w000k000h000t000m000l000t000o000p000d000f000 0000000.00010002000.0006 (via GPL Ghostscript 9.53.3) First seen: 2026-06-21
MD5: fc4cb95d4a799181091eb920ebc41583 SHA-1: 0d83409e3bb9e45e6971a32ca8b1a7862e1c582c SHA-256: af2d235dd49dd585f7faa08f509ee498694bec68ea403b481f7dd90823e38ba2
86 Risk Score

Machine Learning

  • Nyx PDF Classifier clean score 0.0016

Heuristics 5

  • PDF link to algorithmically-generated URL high PDF_RANDOM_URL_LINK
    PDF contains a clickable HTTP(S) link whose host looks algorithmically generated (pronounceable-random labels) and whose path/query carries a long high-entropy token. This is the randomized-redirector pattern of malspam phishing lures — the visible document is only a prompt — not a PDF parser vulnerability.
  • Image lure linking to an SEO redirector (free-download phishing) high PDF_SEO_UTM_REDIRECTOR_LINK
    PDF embeds an image with little or no body text and a clickable link to a multi-word utm_term / FeedBurner-proxied SEO redirector — the 'free ebook / solution-manual / document download' phishing family that ranks for natural-language search queries and routes the user into a payload/redirect chain. The PDF carries no exploit; the risk is the linked destination. Flagged structurally (image lure + SEO redirector) so it does not depend on a ClamAV/ML signature, and regardless of how many filler text pages the lure carries.
  • 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://chapraptti.org/userfiles/file/77862887125.pdf In PDF document text
    • http://mylivediamondinventory.com/uploads/files/bipitadaboris.pdfIn PDF document text
    • http://colleges-in-tamilnadu.com/FCKeditor/userfiles/file/63bb1469-17a2-4269-9b17-0bbb28a1af5b.pdfIn PDF document text
    • https://denki-shonan.com/uploadsfile/8ac57ac7-186d-4dc7-b13c-20171432ad9f.pdfIn PDF document text
    • http://yxhuyi.com/v15/Upload/file/20251125621427348.pdfIn PDF document text
    • http://defyinggravity-afs.com/userfiles/file/93f44d07-cbe7-4e5d-8fa4-2e5e90c8567b.pdfIn PDF document text
    • https://liboga.gonujovux.com/337869055073911866557202160887784800458249?damegazajalugeseziwutivuxamubozarofibuzariwimimajoka=jelapamigobumowemokotibonutubefurenaxerurovipunidefoxomelebovonudimikalurowajibokisonodujopadatejagefubipabuvenenezenusabulowilinirifuxexisigeditexurukuvojidusevafojokidosekogugejelurifupakejituxononotowiro&utm_term=angry+birds+star+wars+2+unlimited+coins+code&kewofikuwusojufewewigomis=jarupurunajutalejiripesamopijugupabigunisatobubujijanodekojurotafowikilowujuguzuwiduxugugalawojonedixigofoledanofigagadonidojivuxidarokonunikim)/Type/ActionIn PDF document text
    • https://chapraptti.org/userfiles/file/77862887125.pdf)/Type/ActionIn PDF document text
    • http://mylivediamondinventory.com/uploads/files/bipitadaboris.pdf)/Type/ActionIn PDF document text
    • http://colleges-in-tamilnadu.com/FCKeditor/userfiles/file/63bb1469-17a2-4269-9b17-0bbb28a1af5b.pdf)/Type/ActionIn PDF document text
    • https://denki-shonan.com/uploadsfile/8ac57ac7-186d-4dc7-b13c-20171432ad9f.pdf)/Type/ActionIn PDF document text
    • http://yxhuyi.com/v15/Upload/file/20251125621427348.pdf)/Type/ActionIn PDF document text
    • http://defyinggravity-afs.com/userfiles/file/93f44d07-cbe7-4e5d-8fa4-2e5e90c8567b.pdf)/Type/ActionIn PDF document text
    • https://liboga.gonujovux.com/337869055073911866557202160887784800458249?damegazajalugeseziwutivuxamubozarofibuzariwimimajoka=jelapamigobumowemokotibonutubefurenaxerurovipunidefoxomelebovonudimikalurowajibokisonodujopadatejagefubipabuvenenezenusabulowilinirifuxexisigeditexurukuvojidusevafojokidosekogPDF link annotation
    • https://liboga.gonujovux.com/337869055073911866557202160887784800458249?damegazajalugeseziwutivuxamubozarofibuzariwimimajoka=jelapamigobumowemokotibonutubefurenaxerurovipunidefoxomelebovonudimikalurowajibokisonodujopadatejagefubipabuvenenezenusabulowilinirifuxexisigeditexurukuvojidusevafojokidosekogugejelurifupakejituxononotowiro&utm_term=angry+birds+star+wars+2+unlimited+coins+code&kewofikuwusojufewewigomis=jarupurunajutalejiripesamopijugupabigunisatobubujijanodekojurotafowikilowujuguzuwiduxuguPDF link annotation
    • https://liboga.gonujovux.com/337869055073911866557202160887784800458249?damegazajalugeseziwutivuxamubozarofibuzariwimimajoka=jelapamigobumowemokotibonutubefurenaxerurovipunidefoxomelebovonudimikalurowajibokisonodujopadatejagefubipabuvenenezenusabulowilinirifuxexisigeditexurukuvojidusevafojokidosekogugejelurifupakejituxononotowiro&utm_term=angry+birds+star+wars+2+unlimited+coins+code&kewofikuwusojufewewigomis=jarupurunajutalejiripesamopijugupabigunisatobubujijanodekojurotafowikilowujuguzuwiduxugugalawojonedixigofoledanofigagadonidojivuxidarokonunikimIn PDF document text
    • http://www.w3.org/1999/02/22-rdf-syntax-ns#In PDF document text
    • http://ns.adobe.com/iX/1.0/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://purl.org/dc/elements/1.1/In PDF document text
    • http://ns.adobe.com/xap/1.0/rights/In PDF document text

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off000234b1.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x234B1 7224 bytes
SHA-256: deb56e8c743b6a835c47ee7a1018e8d12bc0551bcf6e730f38e4d29b609d4b21
font_01_sfnt_off000249cf.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x249CF 3212 bytes
SHA-256: de63afdafa413e58e7c364b1133f9f1651e6387bd33e1b5f1e4725a9ca0a8f06