Malicious PDF — malware analysis report

Static analysis result for SHA-256 d2f9282d6d8e159a…

MALICIOUS

PDF

43.4 KB Created: 2020-08-01 22:05:50 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 8f6cbe7f08444ea2ba36d8cb6f3b0cec SHA-1: 47725d41d1f2bad1dbb385d9ef7cf11176fe926d SHA-256: d2f9282d6d8e159ad1f2b997cdc88f93cfb10f71ac1c5d4b87529f8a579433f5
128 Risk Score

Malware Insights

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

The PDF contains a heuristic firing for a malicious redirector link, pointing to 'https://ttraff.ru/pify?keyword=wav+to+midi+convertor'. Additionally, it exhibits characteristics of a PDF link farm, with numerous links hosted on cdn.shopify.com, suggesting an attempt to distribute malicious content or engage in SEO manipulation for malicious purposes. The presence of a 'download button' lure further supports the malicious intent.

Heuristics 4

  • 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.
  • Visual download / call-to-action button lure low SE_DOWNLOAD_BUTTON
    Document contains a call-to-action phrase ('Click here to download', 'Download Now', etc.) — low-signal unless other findings point to a malicious workflow
  • 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.ru/pify?keyword=wav+to+midi+convertor
    • http://files.mollyshappytrail.com/uploads/1/3/1/3/131379343/7917806.pdf
    • http://files.1stunitedchurch.ca/uploads/1/3/0/8/130813696/2650888.pdf
    • http://files.awakenteenleadership.net/uploads/1/3/2/7/132712006/833b28f6861.pdf
    • https://cdn.shopify.com/s/files/1/0431/8212/9320/files/77924127596.pdf
    • https://cdn.shopify.com/s/files/1/0432/6549/1107/files/dogifavirabovitosinim.pdf
    • https://cdn.shopify.com/s/files/1/0430/0744/3103/files/xelijemulewuwuxob.pdf
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/93434530871.pdf
    • https://cdn.shopify.com/s/files/1/0435/4090/6135/files/viktor_build_paladins.pdf
    • https://cdn.shopify.com/s/files/1/0432/2977/3979/files/78256352958.pdf
    • https://cdn.shopify.com/s/files/1/0432/7954/8580/files/xonorilewosefu.pdf
    • https://cdn.shopify.com/s/files/1/0432/0401/8336/files/mebef.pdf
    • https://cdn.shopify.com/s/files/1/0432/3491/8558/files/47888641650.pdf
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/rinavupomun.pdf
    • https://cdn.shopify.com/s/files/1/0438/9414/5176/files/napalatofomivakeraguxali.pdf
    • https://cdn.shopify.com/s/files/1/0435/2924/0727/files/xupodab.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_off00006bf4.bin
b09a37bce84d32362249a54c7f5b6223145b1a8d2533231d8db0df176785adae		 pdf-font-stream PDF embedded font (sfnt) at offset 0x6BF4 4948 bytes
font_01_sfnt_off00007cc5.bin
3591f73f52924ac5d6425e1e97012ede68c61bb64193fa92e01f87aab1f24681		 pdf-font-stream PDF embedded font (sfnt) at offset 0x7CC5 10572 bytes

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