Malicious PDF — malware analysis report

Static analysis result for SHA-256 200989ec5b2d4c02…

MALICIOUS

PDF

39.7 KB Created: 2020-08-30 23:09:27 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: fae1d75ccceb71f68d00b875b24f0486 SHA-1: 9ef257fcce4a9fd4fe92ce8ecf778651a8c57d5f SHA-256: 200989ec5b2d4c029f348736beddad014c233e764cda27c20c3ea1189c1146ae
128 Risk Score

Malware Insights

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

The PDF contains a heuristic firing for a malicious redirector link pointing to 'https://ttraff.com/wix?keyword=ear+rape+thomas+the+tank+engine'. Additionally, it exhibits characteristics of a PDF link farm, with numerous links to Shopify-hosted PDFs, suggesting an attempt to obscure the final malicious destination. The presence of a 'download button' lure further supports a social engineering attack pattern. No scripts were extracted from this sample.

Heuristics 4

  • 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.
  • Visual download / call-to-action button lure low SE_DOWNLOAD_BUTTON
    Document contains a call-to-action phrase ('Click here to download', 'Download Now', etc.) — low-signal unless other findings point to a malicious workflow
  • 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=ear+rape+thomas+the+tank+engine
    • https://cdn.shopify.com/s/files/1/0434/4135/6950/files/31166825391.pdf
    • https://cdn.shopify.com/s/files/1/0460/0899/1905/files/83359113001.pdf
    • https://cdn.shopify.com/s/files/1/0432/0280/5917/files/filadulomukexaxosapafoxe.pdf
    • https://cdn.shopify.com/s/files/1/0439/2468/4968/files/1823850085.pdf
    • https://cdn.shopify.com/s/files/1/0434/7012/7254/files/91640653400.pdf
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/27150836515.pdf
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/3183641906.pdf
    • https://cdn.shopify.com/s/files/1/0437/0045/3541/files/madusewoked.pdf
    • https://cdn.shopify.com/s/files/1/0440/6149/1365/files/purple_flannelette_sheets_australia.pdf
    • https://cdn.shopify.com/s/files/1/0428/4229/2390/files/wozumazejirisibilaxunij.pdf
    • https://cdn.shopify.com/s/files/1/0464/0587/7915/files/jatekolodadexuxiro.pdf
    • https://static.usrfiles.com/ugd/fd3290_62df2ead64c34af5b48d26896ea2b8b1.pdf
    • https://static.usrfiles.com/ugd/b8c837_7eb12e43ac1a4dfba1729cfb09986dba.pdf
    • https://static.usrfiles.com/ugd/b8c837_6f7f0af01df049569c709e5fac167af4.pdf
    • https://static.usrfiles.com/ugd/b8c837_d9acda9ffa934ff98a9452f81e46c4aa.pdf
    • https://static.usrfiles.com/ugd/b8c837_b88d344323bb46cabc741122bd7c87af.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_off00005e06.bin
68a5de53a69d014522a123dab75f82a9ce76b3b4e3a96fd52349f44ca786cfdd
pdf-font-stream PDF embedded font (sfnt) at offset 0x5E06 5224 bytes
font_01_sfnt_off00006fac.bin
db67084bb1a5ee590d19451fd2d4f31ef1acd582ac543b2d9fb54bddbb92fd82
pdf-font-stream PDF embedded font (sfnt) at offset 0x6FAC 10092 bytes