Malicious PDF — malware analysis report

Static analysis result for SHA-256 27e1683e16028ef6…

MALICIOUS

PDF

49.0 KB Created: 2020-11-01 20:42:54 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-10-02
MD5: 935095bc249ad35db56e50a0730c9b7a SHA-1: 9c291da2b9e1565ab9c431e82aeace0742d929da SHA-256: 27e1683e16028ef6b717101301f736eaa2e82a6297b8e4a3df2bbcc4159ddea9
94 Risk Score
Tags
free-cdn-ebook-manual-lure

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://ttraff.club/123?keyword=aladdin+watch+online+hd+free+2019 In PDF document text
    • https://moxoviwepikiwu.weebly.com/uploads/1/3/2/8/132814726/dejoru.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4372360/normal_5f8b62a4e905a.pdfIn PDF document text
    • https://vukuzimina.weebly.com/uploads/1/3/4/1/134109202/tepemadavigop_dijozim_vomofojemaro_tidup.pdfIn PDF document text
    • https://bedizegoresupa.weebly.com/uploads/1/3/1/3/131379398/4041939.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4384851/normal_5f8e198daee19.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4426957/normal_5f9ec5b1767fd.pdfIn PDF document text
    • https://gimejexoxixaza.weebly.com/uploads/1/3/1/8/131872185/monirafulowafix.pdfIn PDF document text
    • https://topodomero.weebly.com/uploads/1/3/2/6/132696018/9e901e0.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/9fd8b762-4602-403d-83bc-ad96d68c4c5c/rutube_apk.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_off00007fc9.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7FC9 5496 bytes
SHA-256: 30ed8cf939d53c38ed1a16b7d9fc0c626490d397400ac2b73c97b7c243945440
font_01_sfnt_off00009292.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x9292 10844 bytes
SHA-256: f68056fdfd773e2a9b3ed2e9bcbfacbbcc58a8a8b568d15cc5f761ae27ab31d2

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