Malicious PDF — malware analysis report

Static analysis result for SHA-256 3dd80d36c4719b41…

MALICIOUS

PDF

52.6 KB Created: 2020-08-10 08:27:50 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 6948a61bfe8c40b7f2fa25a120621e85 SHA-1: 750b2ed3d47dd094bcf58b06efd7af5e5ef1e639 SHA-256: 3dd80d36c4719b410a7a72a8e1e04ffa478ff327d0fe2da77bd48a530a9a4019
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 'ttraff.cc'. Additionally, it exhibits characteristics of a PDF link farm, embedding numerous external links, with the primary one also leading to a Shopify domain. The document body, though heavily obfuscated, contains the malicious URL and other Shopify URLs, suggesting a lure to external content. The primary malicious URL is likely used to redirect users to a phishing page or a malware download site.

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=amplificateur+de+puissance+classe+d+pdf
    • http://files.soulclarity.ca/uploads/1/3/1/4/131406744/9a075d83.pdf
    • http://files.hendenpoolsinc.com/uploads/1/3/2/6/132682329/sokakimefodas.pdf
    • http://musul.millercounselingserv.com/uploads/1/3/2/8/132814930/gexoxito-lamagijopevi-jisevuro.pdf
    • http://files.thevamcommanders.com/uploads/1/3/2/7/132711999/xujiwamijoxe.pdf
    • https://cdn.shopify.com/s/files/1/0431/8576/6561/files/tekkit_minecraft_server.pdf
    • https://cdn.shopify.com/s/files/1/0437/3485/9941/files/61235218568.pdf
    • https://cdn.shopify.com/s/files/1/0430/7792/7072/files/86922675043.pdf
    • https://cdn.shopify.com/s/files/1/0449/9190/5956/files/dumegetumuperavaxek.pdf
    • https://cdn.shopify.com/s/files/1/0432/7315/8821/files/wesuvevonavatozorinodifi.pdf
    • https://cdn.shopify.com/s/files/1/0440/0958/6846/files/56262918426.pdf
    • https://cdn.shopify.com/s/files/1/0436/3714/5753/files/23224790154.pdf
    • https://cdn.shopify.com/s/files/1/0432/9557/2126/files/tokisomip.pdf
    • https://cdn.shopify.com/s/files/1/0438/4371/5229/files/muwikomulufaxabobadepi.pdf
    • https://cdn.shopify.com/s/files/1/0431/6990/6844/files/90898240171.pdf
    • https://cdn.shopify.com/s/files/1/0429/6163/3439/files/jurerafidigunewovufuvad.pdf
    • https://cdn.shopify.com/s/files/1/0435/2521/0263/files/blueprint_2_english_book.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_off000089bf.bin
e069e5a555b78e2197f40b8cc0f173742bd36300c61ed6f1fa878d83b6451643		 pdf-font-stream PDF embedded font (sfnt) at offset 0x89BF 5288 bytes
font_01_sfnt_off00009baa.bin
293a2bb25b791daf739658e87f805485f640d50378e646beb496423bb115c6b4		 pdf-font-stream PDF embedded font (sfnt) at offset 0x9BAA 12668 bytes

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