Malicious PDF — malware analysis report

Static analysis result for SHA-256 82158b7d5748d69d…

MALICIOUS

PDF

47.5 KB Created: 2020-08-31 03:48:28 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 75dc055ed547a6f77ac9fa8828eb3688 SHA-1: 586f8a4114924fd1e78a5186468b92b57944ef14 SHA-256: 82158b7d5748d69d807258792eae2d386e95b68fefc7de38f95711a7e19ee7fd
120 Risk Score

Malware Insights

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

The PDF file contains a large number of embedded links, a technique often used for SEO manipulation or to redirect users to malicious content. One of the primary links, 'https://ttraff.cc/wix?keyword=espaces+et+paysages+de+l%2527urbanisation+4e', is flagged as a malicious redirector. The document body itself is largely unreadable binary data, but the presence of the malicious link and the link farm heuristic strongly suggest a malicious intent.

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=espaces+et+paysages+de+l%2527urbanisation+4e
    • https://cdn.shopify.com/s/files/1/0434/8693/7253/files/wunol.pdf
    • https://cdn.shopify.com/s/files/1/0449/9701/7768/files/76981724902.pdf
    • https://cdn.shopify.com/s/files/1/0430/2058/3065/files/heavy_coin_purse_sekiro.pdf
    • https://cdn.shopify.com/s/files/1/0432/7014/4158/files/relud.pdf
    • https://static.usrfiles.com/ugd/b8c837_fab6ea02989040ffa9f81bd0e7f73aa6.pdf
    • https://static.usrfiles.com/ugd/05900a_3cdb0109bf2b4ee081c8fc3201033d57.pdf
    • https://static.usrfiles.com/ugd/b8c837_0a6276d66f8341b9a030b75f3b7c5ef1.pdf
    • https://cdn.shopify.com/s/files/1/0433/6926/7354/files/kixaga.pdf
    • https://cdn.shopify.com/s/files/1/0439/4817/9611/files/profit_and_loss_template_monthly.pdf
    • https://static.usrfiles.com/ugd/02beb7_2b2c6e7a233f4fac87764686a964d9c9.pdf
    • https://static.usrfiles.com/ugd/0049ca_8b21f21ae43d4ac1b50370144b8fb29b.pdf
    • https://static.usrfiles.com/ugd/b98abb_f58c71f2715e485da448285899229e0f.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 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00006862.bin
31ffe8b77c8e9b26af736815e2f4681f80100443cca6caae3b12091ef9e6120e		 pdf-font-stream PDF embedded font (sfnt) at offset 0x6862 5444 bytes
font_01_sfnt_off00007af5.bin
4ea56c730084b25c220e0d017186d3635006582ef5a45200ce5ce8369f16130a		 pdf-font-stream PDF embedded font (sfnt) at offset 0x7AF5 12236 bytes
font_02_sfnt_off0000a18b.bin
d1f4a20f0e35a0564be54678b929bb8c711862c507f070c2b9a6abea8daf4378		 pdf-font-stream PDF embedded font (sfnt) at offset 0xA18B 4324 bytes

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