Malicious PDF — malware analysis report

Static analysis result for SHA-256 9811d7ce009b07a6…

MALICIOUS

PDF

54.9 KB Created: 2020-09-01 02:06:10 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 7e7fe14bf7723a4ec96937fc9ac2b01c SHA-1: d6b3af20e048bc3e8fe0339c5bda4e36b9a52482 SHA-256: 9811d7ce009b07a652be3e022c91f9b0d4cb00a7187def5db0dc6a7c672851a2
120 Risk Score

Malware Insights

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

The PDF file contains a heuristic match for PDF_MALICIOUS_REDIRECTOR_LINK, indicating it directs users to malicious infrastructure. Additionally, PDF_SEO_LINK_FARM suggests a large number of outbound links, many of which are likely part of a link farm. The primary malicious URL identified is https://ttraff.cc/wix?keyword=pygmalion+and+galatea+story+pdf, which is likely used to redirect users to further malicious content. The document body, though heavily obfuscated, contains this URL and other PDF links, reinforcing the redirection attempt.

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=pygmalion+and+galatea+story+pdf
    • https://static.usrfiles.com/ugd/529dbf_adc8c660d5064aa6872145aa45d0699f.pdf
    • https://static.usrfiles.com/ugd/88a84f_7404a682e19b4b94b991c0e5cbbc7a3c.pdf
    • https://static.usrfiles.com/ugd/97634b_5ed6b7d9ee4b4ff4b7d96a1ebe7ef633.pdf
    • https://static.usrfiles.com/ugd/a76634_09b38b529c6440e897fd8a0d3e578be8.pdf
    • https://static.usrfiles.com/ugd/b8c837_ca669c5e18164dc7b1772e1030984331.pdf
    • https://static.usrfiles.com/ugd/b914b5_f56e979712204cea84c295619a51860f.pdf
    • https://static.usrfiles.com/ugd/29c71c_89acad3f69e84ed99373ae59e689e775.pdf
    • https://cdn.shopify.com/s/files/1/0463/0393/6669/files/34464214323.pdf
    • https://cdn.shopify.com/s/files/1/0432/0837/6482/files/66067255262.pdf
    • https://cdn.shopify.com/s/files/1/0432/2246/6720/files/83802642045.pdf
    • https://cdn.shopify.com/s/files/1/0433/9387/6118/files/accounting_concepts_mcqs.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_off00009511.bin
82103e3d2e1b68e5ebe18ae5650e6a4bb8f476134b2ea424442efe66d8b218a0		 pdf-font-stream PDF embedded font (sfnt) at offset 0x9511 5464 bytes
font_01_sfnt_off0000a79b.bin
255cef2803c755032e5f4da61aa0d59c84ac0d7758f9468e66449d3d5340430a		 pdf-font-stream PDF embedded font (sfnt) at offset 0xA79B 11712 bytes

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