Malicious PDF — malware analysis report

Static analysis result for SHA-256 8b6e6d35354e119f…

MALICIOUS

PDF

42.6 KB Created: 2020-08-02 15:27:00 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 13e3711f7b9c881bf5c752fd60f8241d SHA-1: 2118888b571fa93765370cdb98303f67c5806c16 SHA-256: 8b6e6d35354e119fea8caa216f8fa0d005ba3982e4dba98654ef3d11daca8c20
160 Risk Score

Malware Insights

MITRE ATT&CK
T1204.002 Malicious Link T1059.003 Windows Command Shell T1059.001 PowerShell

The PDF contains a lure for a 'Creative cloud cleaner tool' and instructs the user to copy/paste content into a shell, indicating a social engineering attack. It embeds multiple links, including a malicious redirector at 'https://ttraff.com/pify?keyword=creative+cloud+cleaner+tool', which likely leads to further malicious content. The PDF also contains a large number of external links, many hosted on Shopify, suggesting a link farm for SEO poisoning or traffic redirection.

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.
  • Clipboard command execution lure high SE_CLIPBOARD_COMMAND_LURE
    Document tells the user to copy or paste clipboard content into Run, PowerShell, cmd, or another shell-like execution context
  • 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=creative+cloud+cleaner+tool
    • http://files.supplydeskhavering.com/uploads/1/3/1/4/131453249/gudunarutosaxipob.pdf
    • http://files.washington-scottish.com/uploads/1/3/0/8/130874318/8b0f395751b7b3.pdf
    • http://files.cjsouthworth.net/uploads/1/3/0/9/130969695/gegugarekuja.pdf
    • https://cdn.shopify.com/s/files/1/0437/6618/6135/files/saginolakes.pdf
    • https://cdn.shopify.com/s/files/1/0430/9889/8592/files/3994188383.pdf
    • https://cdn.shopify.com/s/files/1/0436/1958/2110/files/nufevoguvep.pdf
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/nifafujejugafux.pdf
    • https://cdn.shopify.com/s/files/1/0430/7147/1767/files/35645723456.pdf
    • https://cdn.shopify.com/s/files/1/0430/7949/9940/files/ducky_one_keyboard.pdf
    • https://cdn.shopify.com/s/files/1/0440/9635/6504/files/87028902046.pdf
    • https://cdn.shopify.com/s/files/1/0430/9303/3111/files/32179334263.pdf
    • https://cdn.shopify.com/s/files/1/0428/8158/1209/files/78734171724.pdf
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/85450973079.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_off0000679b.bin
1d4656f5ceb210ca891211bf06429caa683765e052338abc952d1dc686849a88		 pdf-font-stream PDF embedded font (sfnt) at offset 0x679B 4720 bytes
font_01_sfnt_off000077b4.bin
5c1354ee8559b06985c2e91a3aaec2939b3bc832d860f4dcb05c005298b0091f		 pdf-font-stream PDF embedded font (sfnt) at offset 0x77B4 11776 bytes

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