Malicious PDF — malware analysis report

Static analysis result for SHA-256 8d58974045e3d93e…

MALICIOUS

PDF

36.7 KB Created: 2020-08-31 17:02:51 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 7fbc9bf219652204e5dfe44def1b9605 SHA-1: c36914ab363acb2954a2f06a2a5fb955548de6f9 SHA-256: 8d58974045e3d93e3a17bf3f2e809c123c12d423a9f06e83d1f5cb7dd7bfb7bf
120 Risk Score

Malware Insights

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

The PDF file contains a large number of embedded links, many of which point to a redirector service. The document body text, though heavily obfuscated, contains a URL that appears to be the primary lure. This suggests a phishing or scam attempt where the user is directed to malicious infrastructure via a link.

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.cc/wix?keyword=the+cantin+ketogenic+diet+pdf
    • https://cdn.shopify.com/s/files/1/0437/2227/7032/files/jetexoketojinoguwupuv.pdf
    • https://cdn.shopify.com/s/files/1/0450/2716/4310/files/angsana_new_regular_font_free.pdf
    • https://cdn.shopify.com/s/files/1/0428/6224/8095/files/11576957613.pdf
    • https://cdn.shopify.com/s/files/1/0430/8254/7361/files/27263391218.pdf
    • https://cdn.shopify.com/s/files/1/0437/0913/7049/files/la_trampa_de_satanas.pdf
    • https://static.usrfiles.com/ugd/9904c2_1a478cac1ac84482ad5154a91033f5cc.pdf
    • https://static.usrfiles.com/ugd/b8c837_1b1a633001ce4af7bdc2582769e90779.pdf
    • https://static.usrfiles.com/ugd/b3bc21_606103ac5ca64518b613e27c2f794ba4.pdf
    • https://static.usrfiles.com/ugd/b8c837_734620907916414b9d79088a36a73126.pdf
    • https://static.usrfiles.com/ugd/3826db_c655db2513ee4792b893071ec47f4037.pdf
    • https://cdn.shopify.com/s/files/1/0435/9720/1567/files/calculations_used_in_analytical_chemistry.pdf
    • https://cdn.shopify.com/s/files/1/0433/6880/8613/files/limapotagatogot.pdf
    • https://static.usrfiles.com/ugd/837d34_8fab30028a6b4e03b1cd8bec69ff4577.pdf
    • https://static.usrfiles.com/ugd/83e24f_d267fa36066845d0a032c38c2655bec1.pdf
    • https://static.usrfiles.com/ugd/930050_ea20840c9bc34ccc978154e61938f5af.pdf
    • https://static.usrfiles.com/ugd/9757e7_17a030014d274d7f90fd2121eb3ae878.pdf
    • https://static.usrfiles.com/ugd/b8c837_c74b6e8cdf3a433ab4f3a95ebcaffb3c.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 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000535d.bin
a0642572a87fe20ee01790269dc01f0a817da210105b5962fcaeb43e17879fe3		 pdf-font-stream PDF embedded font (sfnt) at offset 0x535D 5124 bytes
font_01_sfnt_off000064d0.bin
ed9cde7ec21853ab3f0af3392d5e8aad7822fb7253e4894a6ee9918e22a64b71		 pdf-font-stream PDF embedded font (sfnt) at offset 0x64D0 9676 bytes

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