Malicious PDF — malware analysis report

Static analysis result for SHA-256 eea6054de52acaa3…

MALICIOUS

PDF

78.6 KB Created: 2021-05-09 02:54:40 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-06-04
MD5: a3af4fdf0650c1ae4abac54406009935 SHA-1: 67b4673367fac0dcbcd67498fecb4f1c4e2d1a08 SHA-256: eea6054de52acaa3156d36f9f06da032e778afde0d03de5238459ae132132b09
76 Risk Score
Tags
free-cdn-ebook-manual-lure

Malware Insights

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

The PDF file contains a high-confidence ML classification indicating maliciousness. It utilizes a heuristic for SEO redirector links, specifically pointing to 'https://xajibur.ru/strik?utm_term=como+hacer+el+ayuno+de+daniel+iurd', which is also listed as an embedded URL. This suggests a phishing or malware distribution lure disguised as a free download. No scripts were extracted, but the PDF structure and embedded URL are strong indicators of malicious intent.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9998

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://xajibur.ru/strik?utm_term=como+hacer+el+ayuno+de+daniel+iurd PDF link annotation
    • https://cdn.sqhk.co/ledumixifer/hihjhLc/ninjas_stolen_scrolls_mod.pdfIn PDF document text
    • http://bekedoziludi.22web.org/social_issues_and_the_environment_download.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4464861/normal_5fccb3cb4a1bf.pdfIn PDF document text
    • http://zoviruk.22web.org/41297909725.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4385217/normal_602ffa780fc30.pdfIn PDF document text
    • https://cdn.sqhk.co/dederubap/jfiaiit/72795986057.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://www.daltonmaag.com/In PDF document text
    • https://s3.amazonaws.com/jidosatikim/65660429081.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/063b545d-e0b4-4082-8575-ed618261fdbd/carel_ir33_manual_parameters.pdfIn PDF document text
    • https://s3.amazonaws.com/besafefaf/medaxomarafuripew.pdfIn PDF document text
    • https://s3.amazonaws.com/lerezazo/560213366.pdfIn PDF document text
    • https://s3.amazonaws.com/zurovajij/guided_reading_level_of_magic_treehouse_books.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/e3c39ed7-3ab2-43a2-af25-2ea7d91d4a88/saxon_math_4th_grade_homeschool.pdfIn PDF document text
    • https://s3.amazonaws.com/rizezobabub/atmospheric_composition_and_structure.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/c59381dd-12c0-4881-ad5d-12b1675c5d44/76237549217.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/347cbc39-a697-4598-9c87-9588b0ee4fcf/sql_server_2008_r2_books_online.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/78974b68-62c4-4693-a695-0f30458c4dc2/67639654528.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 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000e5a2.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE5A2 4928 bytes
SHA-256: 0edc042e9c79a6fcedfb23bad0d93ee2ed46e9063b8e8075533c873a4933aa01
font_01_sfnt_off0000f62c.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF62C 12108 bytes
SHA-256: 7afc5ce443dc5d64178f25eb40fa4ba0012f882abe7d4ab340c6c7e17b857b00
font_02_sfnt_off00011db5.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x11DB5 4324 bytes
SHA-256: ff5f0ef16caf3e97cd1984b3a03ea88e11eab8cf63d2ee006085a4b9995833f3

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