Malicious PDF — malware analysis report

Static analysis result for SHA-256 e49768bc5f949e94…

MALICIOUS

PDF

130.5 KB Created: 2021-03-04 05:56:32 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-06-04
MD5: dc904dc1dbc9178ff119c3d67a86af39 SHA-1: 9c83703b2d5855e08c2826830f164ddcc5be7cb3 SHA-256: e49768bc5f949e9474c74c07f789cf579ad6dbcc32505917f01aff86d1820e18
76 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1059.007 JavaScript

The PDF document contains an embedded URL that functions as an SEO redirector, luring users to a potentially malicious website. The ML classifier strongly indicates malicious intent. No scripts were extracted, but the presence of a redirector suggests an attempt to deliver a secondary payload or phish for credentials.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9997

Heuristics 4

  • 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://ponafet.ru/123?utm_term=what+were+the+arguments+for+the+defendant+in+brown+vs+board+of+education PDF link annotation
    • https://cdn.sqhk.co/duzoxibuf/geemyrf/77601637105.pdfIn PDF document text
    • http://potolkilife.ru/short_vowel_sounds_worksheets_for_grade_50cx2b.pdfIn PDF document text
    • http://crysety.xyz/82382582821faeb8.pdfIn PDF document text
    • http://shoop-ff.ru/luzaluzijaxasbwwhm.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • https://s3.amazonaws.com/zufaxepixiguxax/73444134701.pdfIn PDF document text
    • https://s3.amazonaws.com/galinikagopit/momolimeb.pdfIn PDF document text
    • https://s3.amazonaws.com/tazopaju/whatsapp_business_app_for_android.pdfIn PDF document text
    • https://s3.amazonaws.com/dusubonifu/ask_fm_password_hack_2014.pdfIn PDF document text
    • http://riluromeni.epizy.com/zimuxivakalisanugifulu.pdfIn PDF document text
    • http://tinuzutajalik.epizy.com/how_to_tell_when_furnace_ignitor_is_bad.pdfIn PDF document text
    • http://xajetifenej.epizy.com/tu_eres_frankie_ruiz_mp3_download.pdfIn PDF document text
    • http://xalobazinapirep.epizy.com/pakisas.pdfIn PDF document text
    • http://tipunogat.rf.gd/53042602020.pdfIn PDF document text
    • https://s3.amazonaws.com/satuja/67965569532.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://scripts.sil.org/OFLIn PDF document text

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0001c244.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x1C244 5708 bytes
SHA-256: 8eee855fc57e85f86400438cf06019f17ef93b654355284ba12d5cbf40445963
font_01_sfnt_off0001d5a7.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x1D5A7 11352 bytes
SHA-256: 31689ad5d71415beed31cc9448732974baaa7c433a27e0c3fbda4e21d72e72d8

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