Malicious PDF — malware analysis report

Static analysis result for SHA-256 9d469dae30fbad7b…

MALICIOUS

PDF

40.3 KB Created: 2020-08-30 12:56:48 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 52f2602ebba22cd1b841ed46eaff71be SHA-1: a468f5ea383b07a996836eb303f26af9ae609086 SHA-256: 9d469dae30fbad7b1d7c11d74aa728ff72429e23321c4d93240f3e298e02ae8e
120 Risk Score

Malware Insights

MITRE ATT&CK
T1566.002 Spearphishing Attachment T1059.001 PowerShell

The PDF file contains a critical heuristic firing for a malicious redirector link, pointing to 'https://ttraff.cc/wix?keyword=stargate+watch+order+reddit'. Additionally, it exhibits characteristics of a PDF link farm, with numerous embedded URLs, including 'https://static.usrfiles.com/ugd/067ecb_679b748e62ec477f916850db1b93f4b5.pdf'. The document body, though heavily obfuscated, also contains these URLs, suggesting a lure to external malicious content.

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.cc/wix?keyword=stargate+watch+order+reddit
    • https://static.usrfiles.com/ugd/067ecb_679b748e62ec477f916850db1b93f4b5.pdf
    • https://static.usrfiles.com/ugd/89064d_922711fc112746e8a6e20cee92c6259e.pdf
    • https://static.usrfiles.com/ugd/99afdc_77459360be4748848fb63b8fd280afcd.pdf
    • https://cdn.shopify.com/s/files/1/0430/6560/6301/files/boy_erased_book.pdf
    • https://cdn.shopify.com/s/files/1/0436/9799/5941/files/silekagaso.pdf
    • https://cdn.shopify.com/s/files/1/0436/1771/4334/files/80376535933.pdf
    • https://cdn.shopify.com/s/files/1/0429/3961/3347/files/31584842549.pdf
    • https://cdn.shopify.com/s/files/1/0437/1687/0296/files/64050445936.pdf
    • https://static.usrfiles.com/ugd/b8c837_d6daeec956dc4b1891dab3b63d0089a3.pdf
    • https://static.usrfiles.com/ugd/b8c837_ad69518613604b57992494a838919344.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_off00006119.bin
8ae7de91aa404ce5a24f8e8866b1652d306598649828d85bd93b1f279fbcc23a		 pdf-font-stream PDF embedded font (sfnt) at offset 0x6119 5184 bytes
font_01_sfnt_off000072b5.bin
91839885ed3acf768ad56700e9cffb8a340c5d515a0913b157d75384753bc56d		 pdf-font-stream PDF embedded font (sfnt) at offset 0x72B5 10036 bytes

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