Malicious PDF — malware analysis report

Static analysis result for SHA-256 d6a07f6608e7537e…

MALICIOUS

PDF

42.7 KB Created: 2020-08-31 08:44:50 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 87a4ed26389a761437fd1f31f8052622 SHA-1: e38b50e397096a416be04f1c1a9d51ff019bec5f SHA-256: d6a07f6608e7537e4259a8f4ca0e4c63756babdd3fce1ad358ee405d29d9697f
120 Risk Score

Malware Insights

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

The PDF file contains a heuristic firing for a malicious redirector link, pointing to 'https://ttraff.ru/wix?keyword=compte+les+bienfaits+de+dieu'. Additionally, it exhibits characteristics of a PDF link farm, with numerous embedded URLs, including one hosted on Shopify. The document body, though heavily obfuscated, contains the same malicious URL and a benign Shopify URL, suggesting a social engineering lure to a malicious site.

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=compte+les+bienfaits+de+dieu
    • https://cdn.shopify.com/s/files/1/0431/7921/2959/files/new_line_markdown.pdf
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/xekugoxozeritazol.pdf
    • https://cdn.shopify.com/s/files/1/0432/4796/0232/files/swot_analysis_matrix.pdf
    • https://static.usrfiles.com/ugd/2813e2_d8e00f313706458db838ca9ff6210437.pdf
    • https://static.usrfiles.com/ugd/b8c837_00d44119059045af8d821055747431c7.pdf
    • https://static.usrfiles.com/ugd/b8c837_ef21ab562a21423da427b2b5f7edfb67.pdf
    • https://static.usrfiles.com/ugd/921909_1b1c8de90c794a3dbd9dcc8a06560fdf.pdf
    • https://static.usrfiles.com/ugd/23e9be_fdaa8d2f74774584b876754bb6ca832e.pdf
    • https://static.usrfiles.com/ugd/67e251_e515b97909a048de94a506a9ba0626c7.pdf
    • https://cdn.shopify.com/s/files/1/0440/3996/2774/files/chinese_to_english_translator_online.pdf
    • https://cdn.shopify.com/s/files/1/0430/3149/4810/files/28713063217.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_off00006609.bin
e3089d79a5519427db97a259238564f77c95f2c1209b2ecb2bbe8f902584b66d		 pdf-font-stream PDF embedded font (sfnt) at offset 0x6609 5136 bytes
font_01_sfnt_off00007762.bin
43c63e62602924af86ed4a2584b1d8b07deac3dc6536a74570433e4410d4f195		 pdf-font-stream PDF embedded font (sfnt) at offset 0x7762 12496 bytes

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