Malicious PDF — malware analysis report

Static analysis result for SHA-256 d90e2a5637ecd4ee…

MALICIOUS

PDF

41.5 KB Created: 2020-08-01 14:18:18 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 418adbd9eaea0c2fdbae17ba5d8c321b SHA-1: 6fa53d7e6c2f813c2a930ad4df6a46bb34861d6e SHA-256: d90e2a5637ecd4ee67cdae85ea65e9afe1891a46cb4944d5b2851901e11e8217
120 Risk Score

Malware Insights

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

The PDF file contains a heuristic firing for a malicious redirector link, which is also present in the document body. The link leads to 'ttraff.cc', a known malicious redirector. The document also contains a large number of embedded links, many pointing to Shopify domains, suggesting a link farm or SEO poisoning attempt. The primary malicious IOC is the redirector URL which is likely used to host further malicious content or phishing pages.

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/pify?keyword=how+to+hack+snake
    • http://files.equestrianeliteatapplejackfarm.com/uploads/1/3/1/4/131453725/dcaa468ae5982f.pdf
    • http://files.wmbilljones.com/uploads/1/3/1/4/131437683/2105466.pdf
    • http://files.fionasenton.co.nz/uploads/1/3/0/7/130740211/e035ea37ecf3b01.pdf
    • https://cdn.shopify.com/s/files/1/0436/4333/8912/files/97156414815.pdf
    • https://cdn.shopify.com/s/files/1/0431/4021/9041/files/17125600446.pdf
    • https://cdn.shopify.com/s/files/1/0430/0318/3258/files/31729913492.pdf
    • https://cdn.shopify.com/s/files/1/0433/6405/7247/files/68958154305.pdf
    • https://cdn.shopify.com/s/files/1/0435/9153/2699/files/towineran.pdf
    • https://cdn.shopify.com/s/files/1/0431/8471/7979/files/polaruvularazupasu.pdf
    • https://cdn.shopify.com/s/files/1/0437/4475/5866/files/sitonaro.pdf
    • https://cdn.shopify.com/s/files/1/0434/7399/3890/files/tazutezeb.pdf
    • https://cdn.shopify.com/s/files/1/0432/2885/6477/files/jukidonogajukejimux.pdf
    • https://cdn.shopify.com/s/files/1/0434/2333/4567/files/79819140664.pdf
    • https://cdn.shopify.com/s/files/1/0436/8711/6965/files/neliloxetewonu.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_off0000650b.bin
4f84af9540df3527b1bae7822be8eb309cb6c60eed8bb57f6167bd98554c0760		 pdf-font-stream PDF embedded font (sfnt) at offset 0x650B 4876 bytes
font_01_sfnt_off000075b3.bin
4bc87c0dc280971df2c5523701a82d850fe3e36405a0e53ceafcee0cbd80aa3a		 pdf-font-stream PDF embedded font (sfnt) at offset 0x75B3 10352 bytes

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