Malicious PDF — malware analysis report

Static analysis result for SHA-256 28dedf03ef116aad…

MALICIOUS

PDF

54.7 KB Created: 2020-08-29 13:47:14 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 5e1616402b99b90e3a336cab8750501e SHA-1: 02fa076073b9236b8309d6171483245f6eba10f2 SHA-256: 28dedf03ef116aadf795b555d8759e98c68d4087415121b75433b17a0158489f
120 Risk Score

Malware Insights

MITRE ATT&CK
T1566.002 Spearphishing Attachment T1059.001 PowerShell

The PDF file contains a critical heuristic firing for a malicious redirector link, pointing to 'https://ttraff.com/wix?keyword=kero+sun+omni+105+reviews'. This indicates the document's primary purpose is to redirect users to a potentially harmful external site. The document body, though heavily obfuscated, also contains this URL, reinforcing the malicious intent. No scripts were extracted from this sample.

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.
  • Small PDF contains mass external PDF link farm critical PDF_SEO_LINK_FARM
    Small PDF contains many clickable external PDF links, mostly clustered on one host. This matches generated SEO/link-farm PDF carriers used to route users into malicious or unwanted-software delivery chains, rather than a normal document citation pattern.
  • 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/wix?keyword=kero+sun+omni+105+reviews
    • https://static.usrfiles.com/ugd/b8c837_650183f1d51f413196dcc08892f593b3.pdf
    • https://static.usrfiles.com/ugd/b8c837_07b7e67539e94b319f124c84ebc7e973.pdf
    • https://static.usrfiles.com/ugd/01e791_032bb1f74c904792a5189de9a8e7b64b.pdf
    • https://static.usrfiles.com/ugd/b8c837_5585123bf035493487342ad74903efbb.pdf
    • https://static.usrfiles.com/ugd/b8c837_5a4bcb5b25d54fa685ba53a4e75da3a6.pdf
    • https://cdn.shopify.com/s/files/1/0433/0671/3253/files/1631694286.pdf
    • https://cdn.shopify.com/s/files/1/0435/5745/3985/files/ahlan_magazine.pdf
    • https://cdn.shopify.com/s/files/1/0439/4277/2891/files/64943162806.pdf
    • https://cdn.shopify.com/s/files/1/0428/8207/2739/files/ziratuletizadapiluli.pdf
    • https://cdn.shopify.com/s/files/1/0430/6753/9605/files/niwoxoz.pdf
    • https://cdn.shopify.com/s/files/1/0435/2180/2404/files/jowirazapolilodikojaxison.pdf
    • https://cdn.shopify.com/s/files/1/0440/1453/4806/files/49373221219.pdf
    • https://cdn.shopify.com/s/files/1/0430/0098/7801/files/20550729590.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/
    • https://cdn.shopify.com/s/fil

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00009671.bin
b68d0df896b00892e5a01f7184cc5f61fc7cd6207e44fa3e3b69de866bf1aefb		 pdf-font-stream PDF embedded font (sfnt) at offset 0x9671 5028 bytes
font_01_sfnt_off0000a7a1.bin
e251ebcb53d96647487bad7095ba1d3229c8840abfae30c8f37a18a7e0c00b0f		 pdf-font-stream PDF embedded font (sfnt) at offset 0xA7A1 10836 bytes

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