Malicious PDF — malware analysis report

Static analysis result for SHA-256 c6742809cbdb5f5d…

MALICIOUS

PDF

166.0 KB Created: 2025-05-26 07:03:43 +03:00 Authoring application: 376377000w000k000h000t000m000l000t000o000p000d000f000 0000000.00010002000.0006 (via GPL Ghostscript 9.53.3) First seen: 2026-06-10
MD5: 8f8f4394b285898f1616110e261ddbc2 SHA-1: cf4089cbbbd3ff2ff9ab6f1c595db3f89d79ff30 SHA-256: c6742809cbdb5f5d8a1c7b66d547937f1082569e9a3aee90575ccc147ed93814
86 Risk Score

Machine Learning

  • Nyx PDF Classifier clean score 0.0004

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://kisazeregitu.tugoduzak.com/662233149387252834066019253588941626987411?dufetikeboxogopusikotemexuler=luteguvanuguvulasitamatibasodizezitemuruzebulirukenitegojisozosanamakunutisopamuzigozirinudebeditixorelemomoporesoxetuvavutexapuwuwigalasibawogofokunuwokarobasonelatojivibujadamosazakesixaxodusazerosiludozub&utm_term=o+que+significa+estela&diguwezewodibumuxotexaxarometulorupilinafatof=tesikisekasupodomevijosulubumawigimurorokunojowiretizisobaleteluduvikifasevoduxalotinekodojupebowilodujis PDF link annotation
    • https://kisazeregitu.tugoduzak.com/662233149387252834066019253588941626987411?dufetikeboxogopusikotemexuler=luteguvanuguvulasitamatibasodizezitemuruzebulirukenitegojisozosanamakunutisopamuzigozirinudebeditixorelemomoporesoxetuvavutexapuwuwigalasibawogofokunuwokarobasonelatojivibujadamosazakesixaxodusazerosiludozub&utm_term=o+que+significa+estela&diguwezewodibumuxotexaxarometulorupilinafatof=tesikisekasupodomevijosulubumawigimurorokunojowiretizisobaleteluduvikifasevoduxalotinekodojupebowilodujis)/Type/ActionIn PDF document text
    • https://kisazeregitu.tugoduzak.com/662233149387252834066019253588941626987411?dufetikeboxogopusikotemexuler=luteguvanuguvulasitamatibasodizezitemuruzebulirukenitegojisozosanamakunutisopamuzigozirinudebeditixorelemomoporesoxetuvavutexapuwuwigalasibawogofokunuwokarobasonelatojivibujadamosazakesixaxoduPDF link annotation
    • 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_off0002632e.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x2632E 12404 bytes
SHA-256: 56aeaef5b3e6673bbc8e70e0e788131bd4ef4bcf23af617748d72c013716f7db
font_01_sfnt_off00028266.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x28266 1032 bytes
SHA-256: 7d27c5ab5dc09383ec288ff7c989a4e190a4f30e498ce6e1aed4585834aa075b