Malicious PDF — malware analysis report

Static analysis result for SHA-256 9a692f00c3ecb99b…

MALICIOUS

PDF

45.7 KB Created: 2020-08-29 00:47:50 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 87fb03d0109906d25c805fbfa2338a4a SHA-1: 246e1c827f55dcd215a94627f757b50fc6bc1791 SHA-256: 9a692f00c3ecb99b041fd0d66484fce57b06153257d4e4a96698e20f1283f457
120 Risk Score

Malware Insights

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

The PDF file contains multiple embedded links, with a critical heuristic firing indicating a malicious redirector. The document body, though heavily obfuscated, contains text referencing 'The Legend of Zelda Twilight Princess' and a URL that matches the malicious redirector. This suggests a social engineering lure to direct users to malicious infrastructure.

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.ru/wix?keyword=the+legend+of+zelda+twilight+princess+online
    • https://static.usrfiles.com/ugd/b8c837_820a5227004c441c8dc8a2499c615489.pdf
    • https://static.usrfiles.com/ugd/b8c837_7101b0d36d224c09a1dfc957bd7963af.pdf
    • https://static.usrfiles.com/ugd/b8c837_aca79ec28290424c9177383f61468290.pdf
    • https://cdn.shopify.com/s/files/1/0430/3912/9751/files/libokokesalebesevuf.pdf
    • https://cdn.shopify.com/s/files/1/0431/8406/2622/files/berikejobikaj.pdf
    • https://cdn.shopify.com/s/files/1/0431/6174/7605/files/779754975.pdf
    • https://cdn.shopify.com/s/files/1/0431/8075/3058/files/arabic_dictionary_urdu.pdf
    • https://static.usrfiles.com/ugd/b8c837_e351e3df7bf145329e5c41dbc474af0b.pdf
    • https://static.usrfiles.com/ugd/b8c837_0e7bc79e0ba34dc097d6464112ca8e8f.pdf
    • https://static.usrfiles.com/ugd/b8c837_b89d6a7b0aeb4f74a62d7157d893c49a.pdf
    • https://cdn.shopify.com/s/files/1/0430/8267/8433/files/free_woodworking_plans_diy_projects.pdf
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/2857609843.pdf
    • https://cdn.shopify.com/s/files/1/0433/4583/8248/files/adhar_card_download_by_aadhaar_number.pdf
    • https://cdn.shopify.com/s/files/1/0431/1980/4578/files/xajebatixekavonu.pdf
    • https://cdn.shopify.com/s/files/1/0429/6350/1222/files/8739161331.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/

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off000062ef.bin
2ae9e694be8acdc5faec137c639db790e1556e15eaa13ec7af7825144341ae08		 pdf-font-stream PDF embedded font (sfnt) at offset 0x62EF 4848 bytes
font_01_sfnt_off000073a7.bin
134afa2b8245af28aaf1210400092c9bbe06ef80fecb86d736c438369458a005		 pdf-font-stream PDF embedded font (sfnt) at offset 0x73A7 5508 bytes
font_02_sfnt_off00008678.bin
6a9c8dc511de2c0a390a0780070a662bca18820ff39358bfd9eb8b8d298a5b25		 pdf-font-stream PDF embedded font (sfnt) at offset 0x8678 10208 bytes

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