Malicious PDF — malware analysis report

Static analysis result for SHA-256 3ebbf7c5eff50321…

MALICIOUS

PDF

43.1 KB Created: 2020-08-31 03:12:36 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 93f348c8cff670d7323e8d2de9a6abad SHA-1: c5b354262db4145a6b10e8c5a55dae72c7436fce SHA-256: 3ebbf7c5eff503214d54bcae3b18812665c952843c06117d3d5eb932d354bdb9
120 Risk Score

Malware Insights

MITRE ATT&CK
T1566.002 Spearphishing Attachment T1204.002 Malicious Link

The PDF contains a mass of external links, a common technique for SEO poisoning or redirecting users to malicious sites. One critical heuristic identified a link to known malicious redirector infrastructure. The document body, though heavily obfuscated, contains the URL 'https://ttraff.cc/wix?keyword=tinker+island+garden+guide', suggesting a lure to a malicious site disguised as a garden guide.

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=tinker+island+garden+guide
    • https://cdn.shopify.com/s/files/1/0436/1116/0739/files/vimewegor.pdf
    • https://cdn.shopify.com/s/files/1/0432/9019/8180/files/tevesovariboninowizok.pdf
    • https://cdn.shopify.com/s/files/1/0430/3798/2869/files/xopotediri.pdf
    • https://static.usrfiles.com/ugd/6f7357_e04e1f1bbde34343adb4ff15e5bf7414.pdf
    • https://static.usrfiles.com/ugd/5b9a87_b1f1c6db4095470ba3fb9afab3cf353a.pdf
    • https://static.usrfiles.com/ugd/b8c837_1a844f21c1624ec0968bceebf0a1ccdb.pdf
    • https://static.usrfiles.com/ugd/5bb01c_2197487db0954cfea22887c19709988c.pdf
    • https://static.usrfiles.com/ugd/07625c_a5ccfeb2d0af4cefbb79ccc87173b49c.pdf
    • https://static.usrfiles.com/ugd/b56239_62c5d3128f8d42b68158b30526a336b3.pdf
    • https://static.usrfiles.com/ugd/764aaa_5fd74527a43d4a48b696f68318520c31.pdf
    • https://static.usrfiles.com/ugd/696117_df61cb0eadb0418aa8e3f2803bc73915.pdf
    • https://static.usrfiles.com/ugd/b8c837_df685358f3244444b989f5a7620b5a96.pdf
    • https://static.usrfiles.com/ugd/b8c837_df1eccf167f74f62aa404de7dda292d6.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_off00005ed3.bin
3012bdd7615655eef069fddb4cb14c8bc7ee69baee2106a16d878f5c4b7f97fb		 pdf-font-stream PDF embedded font (sfnt) at offset 0x5ED3 4700 bytes
font_01_sfnt_off00006eb8.bin
0f2aa8d41775af42aedb996b0f293b9bfb241938df0f730343b4e8ca49d7d708		 pdf-font-stream PDF embedded font (sfnt) at offset 0x6EB8 10472 bytes
font_02_sfnt_off000091db.bin
05d2457133b820fa77aa358e30e9acfbad3f04c46ced9a37296d9311117db176		 pdf-font-stream PDF embedded font (sfnt) at offset 0x91DB 4324 bytes

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