Malicious PDF — malware analysis report

Static analysis result for SHA-256 48986c82a038abd2…

MALICIOUS

PDF

39.9 KB Created: 2020-11-02 19:34:33 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 9550f4552ac506c50bd225844b437624 SHA-1: 1da191064d0829b6c6c62679bf27f157fa21241e SHA-256: 48986c82a038abd2170da881ff024048bd894ab50fac77c66fae3ab64e324545
94 Risk Score

Malware Insights

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

The PDF file was flagged by a machine learning classifier as malicious and contains a link to a known malicious redirector, ttraff.cc. This suggests the document is designed to lure users to a malicious website, likely for phishing or malware distribution. While no scripts were explicitly extracted, the presence of embedded URLs and the ML classification strongly indicate malicious intent.

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.cc/123?keyword=goat+by+products+list
    • https://kuzaloxamuw.weebly.com/uploads/1/3/1/4/131406684/4188a.pdf
    • https://cdn-cms.f-static.net/uploads/4376357/normal_5f9108b4a5738.pdf
    • https://roxunasof.weebly.com/uploads/1/3/4/3/134312726/zodaxu.pdf
    • https://luwinititik.weebly.com/uploads/1/3/4/5/134587042/3115768.pdf
    • https://cdn-cms.f-static.net/uploads/4369160/normal_5f9abb79e0199.pdf
    • https://bupiwuzisulim.weebly.com/uploads/1/3/0/8/130874125/c3d4cabb91.pdf
    • https://pojosividadom.weebly.com/uploads/1/3/4/5/134524524/jevutoworuwi.pdf
    • https://cdn-cms.f-static.net/uploads/4389586/normal_5f8f76c91d425.pdf
    • http://www.ascendercorp.com/
    • http://www.ascendercorp.com/typedesigners.html
    • https://cdn.shopify.com/s/files/1/0483/6078/4025/files/pedro_paramo_summary.pdf
    • https://cdn.shopify.com/s/files/1/0504/6960/1445/files/wallpaper_naruto_hd_android.pdf
    • http://www.w3.org/1999/02/22-rdf-syntax-ns#
    • http://purl.org/dc/elements/1.1/
    • http://ns.adobe.com/pdf/1.3/
    • http://ns.adobe.com/xap/1.0/
    • http://ns.adobe.com/xap/1.0/mm/
    • http://ns.adobe.com/xap/1.0/rights/
    • http://scripts.sil.org/OFL

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00005ca8.bin
3bca1c768253848ac4ea1ecf1fdab9d6f0fe5feb868d6eeec9e950d2af95f853		 pdf-font-stream PDF embedded font (sfnt) at offset 0x5CA8 5340 bytes
font_01_sfnt_off00006ee6.bin
643c849d9223acfda2518e6e8d92ee9c7a450432ab280ff3b896ccb7f510e048		 pdf-font-stream PDF embedded font (sfnt) at offset 0x6EE6 10924 bytes

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