Malicious PDF — malware analysis report

Static analysis result for SHA-256 40354969963285af…

MALICIOUS

PDF

40.8 KB Created: 2020-09-02 05:18:33 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 720a3d9ed439f3aeb1e69afcc152801b SHA-1: bb4a2af3b6cd7a7258f57cc4c42234a43f891fca SHA-256: 40354969963285af88ebd167f91c4751aa51eb53672e5b3c2f9c1ac641b552cd
120 Risk Score

Malware Insights

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

The PDF contains a link to a known malicious redirector, ttraff.com, which is designed to lead users to malicious content. The document body, though heavily obfuscated, contains the same URL, suggesting it is the primary lure. The presence of a large number of external PDF links, many pointing to Shopify domains, indicates a link farm strategy to potentially improve SEO or distribute malicious content. No scripts were extracted from this sample.

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/pify?keyword=pizza+hut+meat+lovers+nutrition+information
    • https://static.usrfiles.com/ugd/e4ff69_52e2e037c38e4440aa68364f73aeba72.pdf
    • https://static.usrfiles.com/ugd/e32576_c52e788e63e54b4ebaf3313c60c6bf4b.pdf
    • https://static.usrfiles.com/ugd/b8c837_263d4133e17c4f9e95aaa360348159d3.pdf
    • https://static.usrfiles.com/ugd/e8dba5_9492ee435676400fb1ed6cfb38711628.pdf
    • https://static.usrfiles.com/ugd/ab5adf_aa08ea4b8247449ba9c770241127c64b.pdf
    • https://cdn.shopify.com/s/files/1/0438/2942/8384/files/elettronica_analogica_e_digitale.pdf
    • https://cdn.shopify.com/s/files/1/0432/3311/6317/files/google_play_games_apk_latest_update.pdf
    • https://cdn.shopify.com/s/files/1/0440/6480/0918/files/osha_flammable_storage_cabinet_regulations.pdf
    • https://cdn.shopify.com/s/files/1/0429/5265/5004/files/61730746908.pdf
    • https://cdn.shopify.com/s/files/1/0427/6987/5111/files/16841526781.pdf
    • https://cdn.shopify.com/s/files/1/0433/7549/3271/files/49886441210.pdf
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/69696378660.pdf
    • https://cdn.shopify.com/s/files/1/0434/7396/1110/files/miropilatanirelitafirafu.pdf
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/6317908028.pdf
    • https://static.usrfiles.com/ugd/b8c837_8e08d37e535c43a5b82f4c78f1e535e5.pdf
    • https://static.usrfiles.com/ugd/9a242c_f881baa6a01a4727a65accc6a8e1d390.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_off000060eb.bin
a4dea52ba676c84d7dbd9c85e6c892d9bd58c01ff72da5fcc943f5f1d70ca1e4		 pdf-font-stream PDF embedded font (sfnt) at offset 0x60EB 5116 bytes
font_01_sfnt_off00007237.bin
5fa93dfd96c1305fba643d95222de50d88bac484a48a0ed1b2484e01fa9796aa		 pdf-font-stream PDF embedded font (sfnt) at offset 0x7237 10592 bytes

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