Malicious PDF — malware analysis report

Static analysis result for SHA-256 9e92a0c0da8f6e7b…

MALICIOUS

PDF

43.8 KB Created: 2020-08-30 15:14:18 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: feecbb1d76dc794a8a07a3555ba7e55b SHA-1: 654fee1e023b800c422718ca69df3f69c2164ef1 SHA-256: 9e92a0c0da8f6e7b4e03e5c05ddbe506254bc7076da6bac5c26bba1eed1e3914
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.com/wix?keyword=barbados+travel+guide+pdf'. The document body, though heavily obfuscated, also contains this URL and numerous other links to PDF files hosted on Shopify and other domains, suggesting a link farm or SEO poisoning attempt. The primary malicious link is likely intended to redirect users to a phishing or malware distribution 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.com/wix?keyword=barbados+travel+guide+pdf
    • https://static.usrfiles.com/ugd/ae15ca_6daa8d13497f48ab9ad92e76f448bd66.pdf
    • https://static.usrfiles.com/ugd/529dbf_d52ce98cdf794eb795f353da5b9a7ea2.pdf
    • https://static.usrfiles.com/ugd/822ecd_8b6069793d4c434b940ea378e0d6b2e5.pdf
    • https://cdn.shopify.com/s/files/1/0433/8640/5029/files/32310471658.pdf
    • https://cdn.shopify.com/s/files/1/0438/9437/4555/files/50148950477.pdf
    • https://cdn.shopify.com/s/files/1/0436/0319/8114/files/16517380907.pdf
    • https://cdn.shopify.com/s/files/1/0437/8797/6864/files/jikuruzigoxuj.pdf
    • https://cdn.shopify.com/s/files/1/0435/4641/1167/files/11428528858.pdf
    • https://cdn.shopify.com/s/files/1/0431/7596/8928/files/jadovew.pdf
    • https://cdn.shopify.com/s/files/1/0438/1140/5986/files/21264177190.pdf
    • https://cdn.shopify.com/s/files/1/0445/2545/3471/files/agricola_board_game_rules.pdf
    • https://cdn.shopify.com/s/files/1/0431/1682/2679/files/2311225773.pdf
    • https://cdn.shopify.com/s/files/1/0433/9780/8279/files/expanding_tactics_for_listening_third_edition_teacher_s_book.pdf
    • https://static.usrfiles.com/ugd/1849a1_fd042da4b5ca431e9da1704fad3f4da8.pdf
    • https://static.usrfiles.com/ugd/c068f8_0a86020ffa5d4c52ba8bf276a5cfc1d6.pdf
    • https://static.usrfiles.com/ugd/41a0b6_d6b6196784be4999ad7246b85f8f32a5.pdf
    • https://static.usrfiles.com/ugd/b8c837_50de56314d6148a9a7aeff2e45a672c9.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_off00006a9f.bin
b5d73c60c680a2ed1a82ded10094e88901a195cae03e7dcf19111b4a22294545		 pdf-font-stream PDF embedded font (sfnt) at offset 0x6A9F 5460 bytes
font_01_sfnt_off00007d4a.bin
f273536aaca39b6f4579fc4bcc754ae255fd85fdd65c5cff8beb3ce39c433dfa		 pdf-font-stream PDF embedded font (sfnt) at offset 0x7D4A 10908 bytes

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