Malicious PDF — malware analysis report

Static analysis result for SHA-256 edbee55d0f652e5d…

MALICIOUS

PDF

77.5 KB Created: 2021-03-20 21:12:41 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-06-04
MD5: 8acdfd23f714d592475e92b502a3603f SHA-1: 0e670ecb84db82404ec364dad48c1ccedcef4473 SHA-256: edbee55d0f652e5de2c874ea0fae24a251da1b0dde6d93c0fcfffd38fc00197c
66 Risk Score

Malware Insights

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

The ML classifier strongly indicated maliciousness, and the PDF contains numerous external URIs pointing to disposable domains, suggesting a link farm for distributing malicious content. The document body, though heavily garbled, contains keywords like 'bloodborne official digital guide pdf' which likely serve as lures to entice users to click on the embedded malicious links.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9997

Heuristics 4

  • Small PDF is a non-clustered link farm on disposable hosting medium PDF_SEO_DISPOSABLE_LINK_FARM
    Small PDF contains many clickable external PDF links spread thin across many distinct hosts (no single dominant host), corroborated by a utm_term SEO-redirector link and/or links parked on free/disposable content hosts. This is the 'free document/template' SEO phishing PDF family, which ranks for search queries and routes users into payload/redirect chains, rather than a normal document citation pattern. The PDF itself carries no exploit — the risk is the linked destinations.
  • 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://midufefew.ru/wix?keyword=bloodborne+official+digital+guide+pdf PDF link annotation
    • http://cryogen.me/cheran_pandiyan_tamil_songs_free4zxmv.pdfIn PDF document text
    • http://nasty666.space/12th_new_book_2019_download_maha0wj9b.pdfIn PDF document text
    • http://pezidibega.iblogger.org/98240642822.pdfIn PDF document text
    • http://wavakidagipav.iblogger.org/emotions_flashcards_for_preschool_learning.pdfIn PDF document text
    • http://ratamaperekeja.22web.org/bevidokizizokifur.pdfIn PDF document text
    • http://gagerovovus.22web.org/figaditegofozidipopufu.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://xikepidefam.epizy.com/medical_ethical_dilemma_questions_and_answers.pdfIn PDF document text
    • http://gemuviwir.rf.gd/botikizadidesodinodoj.pdfIn PDF document text
    • https://ee42ee57-4547-4a8c-8a66-6cccb7f6869d.filesusr.com/ugd/2a9ad2_e53ad0fb537f45268de560c2b0f42403.pdf?index=trueIn PDF document text
    • https://s3.amazonaws.com/tuzakifezara/nesatadejabevisup.pdfIn PDF document text
    • http://fupisetugib.rf.gd/abena_abri-_form_comfort_briefs_medium_m4.pdfIn PDF document text
    • https://s3.amazonaws.com/tobovunoberiki/ledekejiwodazu.pdfIn PDF document text
    • http://virojokezof.rf.gd/xubekosufumobija.pdfIn PDF document text
    • https://s3.amazonaws.com/zesotat/1st_grade_workbooks_target.pdfIn PDF document text
    • https://0115c081-d8bc-4983-a705-81db93bf1442.filesusr.com/ugd/990402_87350ee63c3c4b9fa26ed7f0aac0c94c.pdf?index=trueIn PDF document text
    • https://s3.amazonaws.com/jirebonudur/echo_and_narcissus_story_ovid.pdfIn PDF document text
    • https://4e4301d6-cc9a-4939-960a-6b497c1efea6.filesusr.com/ugd/d78803_0b513b52baf64c8f8de933d1da6e55f2.pdf?index=trueIn PDF document text
    • http://vulebodifoguvar.epizy.com/ratikuvulurivuk.pdfIn PDF document text
    • http://gobofitis.epizy.com/98844335483.pdfIn PDF document text
    • https://eadb47d6-6712-4ecd-aa5a-2cdcf2d90b86.filesusr.com/ugd/c844bf_69247720265a4975b20f97ae8ebfb5fe.pdf?index=trueIn PDF document text
    • https://a72a44ae-2aae-4d6a-a6c4-235301d0a62e.filesusr.com/ugd/57436b_c164299c46a4473888edff94d2330c26.pdf?index=trueIn 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_off0000ed99.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xED99 5332 bytes
SHA-256: 7565d85ad99634a5d8c395ecfff5194e5c9d9169f3a81f30fc573938d86eb1f4
font_01_sfnt_off0000ffcc.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xFFCC 11968 bytes
SHA-256: 36f9a93b646340359c42de5b671c108aa1fed4f13f95b76f6a93bc8d27d51619

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