Malicious PDF — malware analysis report

Static analysis result for SHA-256 c6195511834c851f…

MALICIOUS

PDF

37.9 KB Created: 2020-11-02 21:18:01 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-10-02
MD5: e699f704bf7fa92cb00d4a1c0bf7eb2d SHA-1: 9b86d11a3542cfc38cc0f6489bec5c46725bcdea SHA-256: c6195511834c851f692946e574593a4766c8a670ee4fe175e68cb851c0266c30
94 Risk Score

Malware Insights

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

This PDF document was flagged as malicious by an ML classifier. The file routes users through malicious redirector infrastructure. Specific URLs and indicators for this sample are listed in the indicators section.

Machine Learning

  • Nyx PDF Classifier malicious score 1.0000

Heuristics 3

  • 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.
  • 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://gettraff.ru/123?keyword=super+drift+3d+2 In PDF document text
    • https://cdn-cms.f-static.net/uploads/4383918/normal_5f9a9f4767fad.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4376358/normal_5f8a139bb951b.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4452373/normal_5f9fd4b6150c3.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4379856/normal_5f8c90f72c8d4.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4410441/normal_5f981af00ef7b.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4420915/normal_5f96cabe87e24.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/19ccff0d-ece2-4fc2-9e96-85230f0805ad/6612353267.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/47a382aa-b917-49a5-8011-5a8416b43773/willam_belli_book.pdfIn PDF document text
    • https://s3.amazonaws.com/bizamesuwepe/the_jangly_man_original_story.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/2c1db4a3-1e05-40a0-a194-201dd768850a/jirulikefov.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/627deed8-5fed-4540-871d-581061a37b03/46437124844.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/18093c53-8f9a-414a-8751-4b469dae2c2c/kemojomap.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/27301483-af51-4810-a84a-c961ff696b27/wowojilizezugopov.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/87f1bfd3-3d89-4102-9ec6-5b8926e85e5c/59584887002.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_off000055a0.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x55A0 5016 bytes
SHA-256: c402c758ffd23d5f3be930a71b68a3047ac43e4e3edcff7bbf610f388def3696
font_01_sfnt_off000066ca.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x66CA 11192 bytes
SHA-256: 06cb8ee889a7253ff8adfc1e4dda98ced34d698f97495805cc7455177183287b