Malicious PDF — malware analysis report

Static analysis result for SHA-256 35e01bd44bd8c21e…

MALICIOUS

PDF

35.6 KB Created: 2020-09-05 02:14:25 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: d3dede890141aee620f2b70b0fda599c SHA-1: 6896640ed252653dbdda4f14e69b5ee0ded12298 SHA-256: 35e01bd44bd8c21e4802a2ab11addf24bee74222665399c2ba964ebdab290866
160 Risk Score

Malware Insights

MITRE ATT&CK
T1566.002 Spearphishing Attachment T1204.002 User Execution: Malicious File

The PDF contains a link farm and a malicious redirector URL, suggesting a social engineering lure to trick users into downloading further content. The heuristic 'SE_BROWSER_INSTALL_LURE' indicates the document likely prompts the user to install a browser extension or update to view content. The primary malicious URL identified is https://ttraff.me/wix?keyword=autodesk+viewer++dwf, which is likely part of a phishing or malware distribution chain.

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.
  • Browser extension / update installation lure high SE_BROWSER_INSTALL_LURE
    Document tells the user to install a browser extension, plugin, viewer, or browser update to view content — a common social-engineering path for credential theft and malware installation
  • 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.me/wix?keyword=autodesk+viewer++dwf
    • https://cdn.shopify.com/s/files/1/0438/4797/5062/files/15536219207.pdf
    • https://cdn.shopify.com/s/files/1/0457/5831/6700/files/bodybuilding_exercises_pictures_training.pdf
    • https://cdn.shopify.com/s/files/1/0434/7428/8793/files/is_bootcamp_for_mac_free.pdf
    • https://cdn.shopify.com/s/files/1/0434/3057/6285/files/ashcroft_and_mermin_solutions.pdf
    • https://cdn.shopify.com/s/files/1/0435/3776/0408/files/3d_bowling_games_free_for_mobile.pdf
    • https://static.usrfiles.com/ugd/eb6612_59216e8a7e0f486598962e5761086871.pdf
    • https://static.usrfiles.com/ugd/948cea_083358e5fed141a79f4c09c47f4dfcf4.pdf
    • https://static.usrfiles.com/ugd/7f46b5_4d69fbc831b749c9aecc4c0df80cd9b4.pdf
    • https://static.usrfiles.com/ugd/18f527_e302430485bb4bbda950e55f14c0f8a5.pdf
    • https://static.usrfiles.com/ugd/7c30af_e9c5e85d56b54df892b5745833a2426c.pdf
    • https://static.usrfiles.com/ugd/4117a9_d2edfe7db30b4fadae058cf8a14243be.pdf
    • https://static.usrfiles.com/ugd/8de238_47868283e8e04e71a7794b7738c2756a.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_off00004c0d.bin
72e006eecc28a35275217f007d113b819122bf954b0f86a4b9986ec4d639e6a4		 pdf-font-stream PDF embedded font (sfnt) at offset 0x4C0D 4864 bytes
font_01_sfnt_off00005cc2.bin
a19476342d50dfd989fcf8a8f5465e29eb2b0e658a356f245189b38f69592dae		 pdf-font-stream PDF embedded font (sfnt) at offset 0x5CC2 10612 bytes

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