Malicious PDF — malware analysis report

Static analysis result for SHA-256 f97ee67f3d8e3133…

MALICIOUS

PDF

43.7 KB Created: 2020-08-21 23:38:23 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 6032691b9c08d018e116d07ff587e25f SHA-1: 34e76bab6046a81c4514a076f4536ba6f0e962da SHA-256: f97ee67f3d8e313328e3dae96053aef276e72dca9e893db8cac73fcf16a2eaab
120 Risk Score

Malware Insights

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

The PDF file contains a critical heuristic firing for a malicious redirector link, pointing to 'https://ttraff.cc/pify?keyword=benefits+of+management+accounting+reporting'. Additionally, it exhibits characteristics of a PDF link farm, embedding numerous external links, many of which point to Shopify-hosted PDFs. The document body, though heavily obfuscated, also contains the malicious redirector URL and several Shopify URLs. This suggests the document's primary purpose is to redirect users to malicious infrastructure.

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=benefits+of+management+accounting+reporting
    • http://jivuz.ekamniearth.com/uploads/1/3/2/7/132740214/4955560.pdf
    • http://kozuzuno.bzdickstudio.com/uploads/1/3/1/3/131379730/kabub.pdf
    • https://cdn.shopify.com/s/files/1/0443/6059/7660/files/sisyphus_albert_camus.pdf
    • https://cdn.shopify.com/s/files/1/0432/4940/2016/files/janunivamubakaxavajo.pdf
    • https://cdn.shopify.com/s/files/1/0428/6310/0070/files/activity_guide_following_major_gynaecological_surgery.pdf
    • https://cdn.shopify.com/s/files/1/0439/1357/6603/files/bernard_lewis_tarihte_araplar.pdf
    • https://cdn.shopify.com/s/files/1/0434/7992/4893/files/path_of_exile_strongbox.pdf
    • https://cdn.shopify.com/s/files/1/0438/0730/9986/files/dieta_cetogenica_menu.pdf
    • https://cdn.shopify.com/s/files/1/0430/3601/6802/files/9584231254.pdf
    • https://cdn.shopify.com/s/files/1/0434/0563/9836/files/sabizezipoz.pdf
    • https://cdn.shopify.com/s/files/1/0435/1465/8980/files/12870860494.pdf
    • https://cdn.shopify.com/s/files/1/0431/9005/9176/files/banco_espirito_santo_annual_report.pdf
    • https://cdn.shopify.com/s/files/1/0430/5128/6690/files/zumonobowi.pdf
    • https://cdn.shopify.com/s/files/1/0429/1110/5191/files/functional_and_nonfunctional_requirements_examples.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_off00006c69.bin
d23ccffd1f7e7f057894e61b2988308e908e3b23a975044086c8a86705a8cd1f		 pdf-font-stream PDF embedded font (sfnt) at offset 0x6C69 5352 bytes
font_01_sfnt_off00007e89.bin
4e2d425972ba1a223fbe3b0c8b677b15bbefb842de253f182d242399bdbde43b		 pdf-font-stream PDF embedded font (sfnt) at offset 0x7E89 10304 bytes

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