Malicious PDF — malware analysis report

Static analysis result for SHA-256 f2fd6a392043f44f…

MALICIOUS

PDF

35.3 KB Created: 2020-08-29 14:57:41 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 95052576823a10957aa59a32084c6187 SHA-1: 6283807ace9f604f3c0519970f2eee501124ce0a SHA-256: f2fd6a392043f44f7cf82faf8d47f6e62114046ae80ffc251752d89d30810fda
120 Risk Score

Malware Insights

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

The PDF contains a prominent link that, when clicked, redirects to a malicious URL. The document body text also contains the same lure and URL, indicating a social engineering attempt to trick the user into downloading potentially harmful content. The PDF was generated by wkhtmltopdf, a tool often used to create documents for SEO link farms.

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=download+film+si+doel+the+movie+2+in
    • https://static.usrfiles.com/ugd/b8c837_f4ce1bf290ec480480197815fc9ee649.pdf
    • https://static.usrfiles.com/ugd/b8c837_a8de0b5250514b5fb7de2c281ec5ba82.pdf
    • https://static.usrfiles.com/ugd/d01287_465e488cd833433da9463544058bb864.pdf
    • https://static.usrfiles.com/ugd/07625c_ddaa693aafda4ffc96d6dff262d9a472.pdf
    • https://static.usrfiles.com/ugd/b8c837_4493515617504ad09353387c5f78dac8.pdf
    • https://static.usrfiles.com/ugd/b8c837_8ffb51f4d6df4c81883c0a56039f58f7.pdf
    • https://cdn.shopify.com/s/files/1/0431/7066/0508/files/siwedeguwo.pdf
    • https://cdn.shopify.com/s/files/1/0433/9453/1484/files/64914830813.pdf
    • https://cdn.shopify.com/s/files/1/0462/8394/8192/files/gf_free_cookie_recipes.pdf
    • https://static.usrfiles.com/ugd/b8c837_1ff0917d947c45d19f3b22cda3ddc578.pdf
    • https://static.usrfiles.com/ugd/19103d_858268c3263440ba99852fe35cb983f9.pdf
    • https://static.usrfiles.com/ugd/b8c837_fac12a86590b4132b6abe6c0d0b3c924.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_off00004b7e.bin
9b624249c8c1ed88f1c7c792074b57fd2d4a078ad20e37dd5d2152126c9f427a		 pdf-font-stream PDF embedded font (sfnt) at offset 0x4B7E 5336 bytes
font_01_sfnt_off00005da0.bin
28b11e380eabe4c157ad66c70e009770e2587ab1b0391a07f2f0d7618e60296f		 pdf-font-stream PDF embedded font (sfnt) at offset 0x5DA0 10216 bytes

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