Malicious PDF — malware analysis report

Static analysis result for SHA-256 fcac6215f1a108ab…

MALICIOUS

PDF

41.6 KB Created: 2020-08-31 19:12:23 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: a1817d59f24c28b50ccf9dfe3f39f48e SHA-1: fc73c4b7ed813b8509ce26ad912f7e0198ffecb2 SHA-256: fcac6215f1a108ab87200dc82d4f8cabe0cc82048bde97979ca917188be17215
128 Risk Score

Malware Insights

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

The PDF file contains numerous embedded links, with one specifically pointing to a known malicious redirector. The heuristic 'SE_INVOICE_LURE' indicates the document's content is designed to mimic an invoice or payment request, further supporting the social engineering aspect. The primary malicious URL identified is ttraff.com, which likely serves as a gateway to further malicious content.

Heuristics 4

  • 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.
  • Fake invoice / payment lure low SE_INVOICE_LURE
    Document contains invoice or payment language paired with an action verb — useful context when combined with link, macro, or attachment indicators
  • 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=receivables+aging+report+in+sap
    • https://static.usrfiles.com/ugd/9d66c7_0f2db3fef1bd4f4e8ba4f5afd0db5ab6.pdf
    • https://static.usrfiles.com/ugd/c3f88d_90f359b0dcd94be89b47d2797a1385e8.pdf
    • https://static.usrfiles.com/ugd/a2c2bc_fc27e8990b414c6ba16596257cedc548.pdf
    • https://static.usrfiles.com/ugd/b5aed9_695f2972994b4ba593e2e49bae7ee6d5.pdf
    • https://static.usrfiles.com/ugd/f09a9d_774da903c6924128bf1370fed169bf3f.pdf
    • https://static.usrfiles.com/ugd/6f9b04_86eda5a50c9044e2a3bb37f8ce8220ff.pdf
    • https://static.usrfiles.com/ugd/b8c837_1419705ab4874e0bac4a3c4176785338.pdf
    • https://static.usrfiles.com/ugd/ce14f3_d5d7bc47b1634256afa92983ba8b0330.pdf
    • https://cdn.shopify.com/s/files/1/0435/3441/8072/files/29644254994.pdf
    • https://cdn.shopify.com/s/files/1/0462/7621/4944/files/ccleaner_mac_os.pdf
    • https://cdn.shopify.com/s/files/1/0434/4378/1788/files/14868075365.pdf
    • https://cdn.shopify.com/s/files/1/0434/4994/2176/files/49709182682.pdf
    • https://cdn.shopify.com/s/files/1/0434/0659/0106/files/wipeveb.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_off0000653b.bin
7d2b0c6ce062fe6683367afffc62479f8199bd2fb5c69d51daf90330495b7e17		 pdf-font-stream PDF embedded font (sfnt) at offset 0x653B 5308 bytes
font_01_sfnt_off00007763.bin
72eecce8726020d71f22e2d2363212354ed5c0b281d9234cf11afeb9ee84cb86		 pdf-font-stream PDF embedded font (sfnt) at offset 0x7763 9896 bytes

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