Malicious PDF — malware analysis report

Static analysis result for SHA-256 9e0d70f714a7c8ca…

MALICIOUS

PDF

63.4 KB Created: 2021-03-02 13:04:54 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-04
MD5: c11a144c403f5ad0276cd54c64b90a2c SHA-1: 9be8d61ffaf5e3290e0047cacc2ca67baab8d742 SHA-256: 9e0d70f714a7c8ca41039bcb3d8bd974542303e2012154697065db413063e1cf
126 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9998

Heuristics 5

  • Small PDF contains mass external PDF link farm critical PDF_SEO_LINK_FARM
    Small PDF contains many clickable external PDF links, mostly clustered on one host. This matches generated SEO/link-farm PDF carriers used to route users into malicious or unwanted-software delivery chains, rather than a normal document citation pattern.
  • 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://leonvi.ru/wix?keyword=kelly+mill+middle+school+twitter PDF link annotation
    • https://zawurufaxi.weebly.com/uploads/1/3/4/8/134861846/3997717.pdfIn PDF document text
    • https://xuxuratedagofat.weebly.com/uploads/1/3/4/6/134644764/wunugofivexu.pdfIn PDF document text
    • https://cdn.sqhk.co/pawosuku/ghihig2/missing_persons_cases_network.pdfIn PDF document text
    • https://butitonivo.weebly.com/uploads/1/3/4/3/134314214/563a368424.pdfIn PDF document text
    • http://copyrightviolationcenters.com/how_to_draw_a_dog_step_by_step_realistic2mvoc.pdfIn PDF document text
    • http://ing-jobs-opportunities.com/27209841736erhyr.pdfIn PDF document text
    • https://benipotuwazel.weebly.com/uploads/1/3/4/4/134445242/2451127.pdfIn PDF document text
    • https://rafowatixi.weebly.com/uploads/1/3/0/8/130874563/goduna-forinukobe.pdfIn PDF document text
    • http://helplnstagramcontact6088756.com/whats_the_difference_between_facebook_story_and_news_feeddzl5n.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4410722/normal_60270986d18ec.pdfIn PDF document text
    • http://aov.one/ateC59Ften_gC3B6mlek_soru_ve_cevaplarC4B1wg5e5.pdfIn PDF document text
    • https://xesuxikoju.weebly.com/uploads/1/3/4/0/134095833/1b3337e67e72cc.pdfIn PDF document text
    • https://cdn.sqhk.co/vukupamita/nwEhRha/stackable_diamond_rings_rose_gold.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4383138/normal_6030e31335f18.pdfIn PDF document text
    • https://nezopubetuw.weebly.com/uploads/1/3/2/6/132681339/3064ac3.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4494147/normal_5fca91c85c4f1.pdfIn PDF document text
    • http://onlinetyz.xyz/the_language_of_prejudice_by_gordon_allportdybq2.pdfIn PDF document text
    • https://butevexonukuzi.weebly.com/uploads/1/3/2/6/132681970/memedu.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4393898/normal_5fcb2b7c72423.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn 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_off0000bf40.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xBF40 5132 bytes
SHA-256: 8103455560845dcccf0a16340bafdc34fa9409052235e49946f7db613c6be486
font_01_sfnt_off0000d0a8.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xD0A8 9356 bytes
SHA-256: 638753e61c27ad9cbcce9af5487a9b0f6a6ad111664141c909ffafdf1c9e3ead

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