Malicious PDF — malware analysis report

Static analysis result for SHA-256 2e50a5995b8897db…

MALICIOUS

PDF

47.5 KB Created: 2020-08-30 09:49:11 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 737862ca427aeb5bb23aed21443c9721 SHA-1: e76577ee879e1f4f8689fabb0c829656607288a9 SHA-256: 2e50a5995b8897dbc163ed0838ea03e64e9b3838311bdadf4334fc2c986120b9
120 Risk Score

Malware Insights

MITRE ATT&CK
T1566.002 Spearphishing Attachment T1059.001 PowerShell T1204.002 Malicious Link

The PDF file contains a heuristic firing for a malicious redirector link, specifically pointing to 'https://ttraff.com/wix?keyword=hello+kitty+coloring+pages+pdf'. This indicates a social engineering attempt to trick the user into visiting a malicious site under the guise of providing coloring pages. The file also contains a large number of embedded links, many of which point to Shopify domains, suggesting a link farm or SEO manipulation tactic to obscure the malicious redirector.

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.com/wix?keyword=hello+kitty+coloring+pages+pdf
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/lewajoranuputefikilos.pdf
    • https://cdn.shopify.com/s/files/1/0437/9095/8749/files/kobalt_miter_saw_parts_list.pdf
    • https://cdn.shopify.com/s/files/1/0432/0293/6992/files/43963067550.pdf
    • https://cdn.shopify.com/s/files/1/0438/5954/2176/files/swot_analysis_matrix.pdf
    • https://cdn.shopify.com/s/files/1/0430/9660/4825/files/fodezuzigiboxuk.pdf
    • https://static.usrfiles.com/ugd/dc8a8e_bdd2eadc41d6476ebeda9799b587fab2.pdf
    • https://static.usrfiles.com/ugd/b8c837_5e39e012f8b743cfa99384b249c76c8a.pdf
    • https://static.usrfiles.com/ugd/63d3ad_f604bc038d8b4b6fa31060ff700fea88.pdf
    • https://cdn.shopify.com/s/files/1/0439/6944/6046/files/application_of_gis_in_urban_planning.pdf
    • https://cdn.shopify.com/s/files/1/0435/1927/9259/files/sobazovoxapozawut.pdf
    • https://cdn.shopify.com/s/files/1/0433/0602/5128/files/48239634337.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_off00007d1c.bin
d203b1de84c3154ad4f618bc20187b6171cc29144e540cc6dbeb023dc415eb5e		 pdf-font-stream PDF embedded font (sfnt) at offset 0x7D1C 5448 bytes
font_01_sfnt_off00008fb3.bin
5648d56c7110e2ab275d4bd70ce4eac785d7ea6d64a63a6e9809020c326b28d4		 pdf-font-stream PDF embedded font (sfnt) at offset 0x8FB3 9948 bytes

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