Malicious PDF — malware analysis report

Static analysis result for SHA-256 7e308d5c6a69bdb0…

MALICIOUS

PDF

52.4 KB Created: 2020-10-02 06:30:56 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-10
MD5: 0543c09de284e024a82302e75d76be95 SHA-1: e69ee1dc0b2e24a8722ee97117ced4a5f42b4dd0 SHA-256: 7e308d5c6a69bdb0596bc42fdb1a14a6097fb5574ca119f8e6261a74332d98d6
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://ttraff.club/pify?keyword=outcasts+of+poker+flat+sparknotes In PDF document text
    • https://site-1037115.mozfiles.com/files/1037115/wakoboweb.pdfIn PDF document text
    • https://site-1036995.mozfiles.com/files/1036995/tewoxutukulija.pdfIn PDF document text
    • https://site-1036713.mozfiles.com/files/1036713/98303347949.pdfIn PDF document text
    • http://files.lipscomblaw.com/uploads/1/3/2/7/132712614/xejimajiw.pdfIn PDF document text
    • http://files.umaraniiyli.com/uploads/1/3/2/7/132740375/zitinizinewe-jilimaduf-wevitufujusop-pijoratavipuz.pdfIn PDF document text
    • http://files.garygintherstudios.com/uploads/1/3/1/4/131453393/jefabinusi_bedobamedi.pdfIn PDF document text
    • https://site-1037222.mozfiles.com/files/1037222/kadoximumisewibilewob.pdfIn PDF document text
    • https://site-1037219.mozfiles.com/files/1037219/34580157239.pdfIn PDF document text
    • https://site-1039634.mozfiles.com/files/1039634/tuvetunawufeg.pdfIn PDF document text
    • https://site-1038970.mozfiles.com/files/1038970/74213870029.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • https://uploads.strikinglycdn.com/files/166a8526-ab12-4284-9083-8717594a2bd7/fenan.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/3a402a7d-d168-48a0-a3ad-97407dd06640/6708859035.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/cf1dbc6c-c6d6-49b7-8a2f-9230fb39915d/lebav.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/3143c84f-05a8-4652-be3c-75d36c7e4aaf/65436272940.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_off00008fe2.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x8FE2 5100 bytes
SHA-256: 97a0890130469693b0c60268bdcc1a6fcd2b0c706ee2733d5ebeeb672710f860
font_01_sfnt_off0000a153.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xA153 10488 bytes
SHA-256: ba35275e4ce16f8f89d8d7359858736356d38e2f68e9ab78f958eecdc89fa59a

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