Malicious PDF — malware analysis report

Static analysis result for SHA-256 31ca794840d4a5ab…

MALICIOUS

PDF

32.4 KB Created: 2020-10-30 20:24:14 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-10-26
MD5: 5aac1ddb9c495f8b8f639bdca51e3667 SHA-1: 46ecda1932bfdf274e9fac0c6a1f61b61261f8a8 SHA-256: 31ca794840d4a5ab680ee56c00bd8c1e0df352f520b5299bb2a2352c32a93b19
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 and contains a link to known malicious redirector infrastructure. The embedded URL `https://ttraff.com/123?keyword=ua+long+beach+6+theater` is the primary indicator of malicious intent. While no scripts were explicitly extracted, the PDF structure and the presence of embedded URLs suggest an attempt to lure the user to a harmful site, likely for phishing or malware delivery.

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://ttraff.com/123?keyword=ua+long+beach+6+theater In PDF document text
    • https://cdn-cms.f-static.net/uploads/4371495/normal_5f8ac02a45a99.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4378607/normal_5f8debcaba1b9.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4379034/normal_5f8db534c700c.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4374207/normal_5f89e3e690e33.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4367680/normal_5f8ba4accfb1b.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4380383/normal_5f977b20f3a5e.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4366389/normal_5f8a732eef47d.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/a267acba-6a7c-4bf4-ad9e-7a4f939a4fb7/inflectional_and_derivational_morphe.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/75d86555-50ba-4fc7-b7d3-8bd77413020e/55502203823.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/ffa38594-fc58-4547-93e9-f12dd1fcb5bf/zotenutug.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/6aba115f-793f-4f5f-8429-f7a8312b3d9a/panama_jack_bike.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0440/1060/2661/files/tasidimosoberid.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/528b7da3-db6b-498f-a3b3-02d0a7fbeb99/wokorid.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_off00004287.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x4287 5168 bytes
SHA-256: 5602e762860b9b0d03f31ad94fa064ddd7aba063303744f5bbb8de2143005587
font_01_sfnt_off00005417.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x5417 9748 bytes
SHA-256: 41f187669b422aa05ffa6f29115e4756a34ac470e98175083e3e95397d64fb7a

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