Malicious PDF — malware analysis report

Static analysis result for SHA-256 fc1bbab31d4f1ec1…

MALICIOUS

PDF

52.2 KB Created: 2024-10-29 06:10:25 +02:00 Authoring application: 376377000w000k000h000t000m000l000t000o000p000d000f000 0000000.00010002000.0005 (via GPL Ghostscript 9.27) First seen: 2026-05-13
MD5: cac634cd817012778f339cc10ba8b1a9 SHA-1: 2c6138b1fc3e50d6ae12d8dc6f645c83c1d77dfd SHA-256: fc1bbab31d4f1ec11af76bd06f596f0d286fe7cae0f5155e5c3f38e3d46a8524
86 Risk Score

Machine Learning

  • Nyx PDF Classifier clean score 0.0011

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://tozoma.poletofuti.com/48727331318472313528826811?wufulufugufojugenupakosotojaxunekibugepigujawafevubopoderazizinar=wekodidijanewoxelejemevefawedogufajapibisukokopamafulopofomonerizewamanobanavanurinireboxaniwijinejijibodaritasuwugewajumukilemubodezasatulebemojareripuxirolupipipokaridoviposuboxikakexuxowepupomaniroxizupedu&utm_term=vegas+pro+16+free+template&ranobejawozerawivaguzujuvewuponumokalanudujexijujunozakapoxelixukufagok=poburakuzamogujifatogixumejexexajokumaxefabixoniwejixesosalapidebofikoxukojidominotatuwosolepagolorilesinelu In PDF document text
    • https://tozoma.poletofuti.com/48727331318472313528826811?wufulufugufojugenupakosotojaxunekibugepigujawafevubopoderazizinar=wekodidijanewoxelejemevefawedogufajapibisukokopamafulopofomonerizewamanobanavanurinireboxaniwijinejijibodaritasuwugewajumukilemubodezasatulebemojareripuxirolupipipokaridoviposubPDF link annotation
    • https://tozoma.poletofuti.com/48727331318472313528826811?wufulufugufojugenupakosotojaxunekibugepigujawafevubopoderazizinar=wekodidijanewoxelejemevefawedogufajapibisukokopamafulopofomonerizewamanobanavanurinireboxaniwijinejijibodaritasuwugewajumukilemubodezasatulebemojareripuxirolupipipokaridoviposuboxikakexuxowepupomaniroxizupedu&utm_term=vegas+pro+16+free+template&ranobejawozerawivaguzujuvewuponumokalanudujexijujunozakapoxelixukufagok=poburakuzamogujifatogixumejexexajokumaxefabixoniwejixesosalaPDF 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_off00009912.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x9912 8540 bytes
SHA-256: 6035363070c461f3ab56db72e2ccf5a3df0411ceaf42fd7bb86e2d022ed47ca4
font_01_sfnt_off0000b1d3.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xB1D3 2824 bytes
SHA-256: cbdbd41a0945a307eb0269ab6b3b1224aa47396e3d111497f17c7dbbabaf671f