Malicious PDF — malware analysis report

Static analysis result for SHA-256 eae176e611c00ecc…

MALICIOUS

PDF

44.6 KB Created: 2020-10-15 22:22:00 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-15
MD5: dd500b073f57765df55d82e079fd6d52 SHA-1: b4c71c30434ceda0f2df5bbfc2b07796c4faa5c0 SHA-256: eae176e611c00eccff07712eb8c8e8aa0714c724bfc008a3f81d25caf77be349
124 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 1.0000

Heuristics 4

  • PDF links to known malicious redirector infrastructure critical PDF_MALICIOUS_REDIRECTOR_LINK
    PDF contains a clickable URI to redirector infrastructure used by a known malicious PDF SEO/adware delivery campaign. These documents typically rely on user interaction and redirect chains rather than a PDF parser vulnerability.
  • 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.
  • 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://ggtraff.ru/123?keyword=shadow+of+war+walkthrough+guide In PDF document text
    • https://site-1038844.mozfiles.com/files/1038844/jolifineveruvibupubulap.pdfIn PDF document text
    • https://site-1044256.mozfiles.com/files/1044256/pokalegikel.pdfIn PDF document text
    • https://site-1043876.mozfiles.com/files/1043876/8888426885.pdfIn PDF document text
    • https://site-1041782.mozfiles.com/files/1041782/85136347677.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4366029/normal_5f86f9e2f0f10.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4369779/normal_5f88036c32506.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4366028/normal_5f87b2c91b1bf.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4365635/normal_5f87184e9b190.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4366645/normal_5f885b4e23e39.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4366042/normal_5f87d4198304d.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4365639/normal_5f883bda42d97.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4365634/normal_5f86f65d5947c.pdfIn PDF document text
    • https://site-1039952.mozfiles.com/files/1039952/zedubabus.pdfIn PDF document text
    • https://site-1041939.mozfiles.com/files/1041939/41107085178.pdfIn PDF document text
    • https://site-1043445.mozfiles.com/files/1043445/votufitorezix.pdfIn PDF document text
    • https://site-1039817.mozfiles.com/files/1039817/dakadagawutoxuwirowafajek.pdfIn PDF document text
    • https://site-1042101.mozfiles.com/files/1042101/48308823784.pdfIn PDF document text
    • https://site-1042978.mozfiles.com/files/1042978/ronan.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4365638/normal_5f8825eb8ae11.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4366385/normal_5f889387cbce6.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4366965/normal_5f87525c2853e.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4366302/normal_5f876334aff5f.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_off00006f10.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6F10 5248 bytes
SHA-256: 82d4a843f2d6739c186a95a8a20a092e2100ac439d22ef6611a7aec5a9ec3caa
font_01_sfnt_off000080ee.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x80EE 10652 bytes
SHA-256: 83f6ea1f2d0c75015ee9345714ba462a4765f40acda21ef479c5a965afa21788

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