Malicious PDF — malware analysis report

Static analysis result for SHA-256 3166410111293ca0…

MALICIOUS

PDF

41.9 KB Created: 2020-08-17 05:58:52 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 99318ac4044aa6d4d81f0401e9f52971 SHA-1: 0a85692065a30946c6e0152150a4f6e7e791bca5 SHA-256: 3166410111293ca04bb2e38e3abd6d9fdf1c3750ad5278f9be4d720cb85b45dd
150 Risk Score

Malware Insights

MITRE ATT&CK
T1566.002 Spearphishing Attachment T1204.001 User Execution: Malicious Link T1059.001 PowerShell

The PDF contains a deceptive lure related to 'cheat engine 6.6 mac' and embeds multiple links. One of these links, https://ttraff.ru/pify?keyword=cheat+engine+6.+6+mac, is identified as a malicious redirector. The PDF also features a link farm, with many links pointing to Shopify domains, likely to obscure the malicious intent. The ML classifier strongly indicates maliciousness.

Machine Learning

  • Nyx PDF Classifier malicious score 1.0000

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.ru/pify?keyword=cheat+engine+6.+6+mac
    • http://files.baycoastallivingfair.com/uploads/1/3/2/6/132695780/3748754.pdf
    • http://bezubim.seasonstravels.com.au/uploads/1/3/2/7/132740900/9523540.pdf
    • http://files.cristawadsworth.com/uploads/1/3/1/0/131070161/765c2.pdf
    • https://cdn.shopify.com/s/files/1/0427/6341/9814/files/biviwuxi.pdf
    • https://cdn.shopify.com/s/files/1/0429/3672/9766/files/85825350510.pdf
    • https://cdn.shopify.com/s/files/1/0427/9920/2467/files/87050259234.pdf
    • https://cdn.shopify.com/s/files/1/0429/1005/6615/files/jokomiwavajorolifamanulu.pdf
    • https://cdn.shopify.com/s/files/1/0436/5585/6281/files/schoolboy_q_oxymoron_zip_download.pdf
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/mofofuledezenededur.pdf
    • https://cdn.shopify.com/s/files/1/0430/9424/5537/files/57039853879.pdf
    • https://cdn.shopify.com/s/files/1/0436/5202/2430/files/riximevakomobajetefi.pdf
    • https://cdn.shopify.com/s/files/1/0433/3145/3081/files/york_air_cooled_chiller.pdf
    • https://cdn.shopify.com/s/files/1/0431/2812/7637/files/13196314408.pdf
    • https://cdn.shopify.com/s/files/1/0435/5099/8679/files/dijemigamoxinimuxotot.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/
    • https://cdn.shopify.com/s/

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000666d.bin
9ac06fee6279a97ef2c13127223c00b4f53e6843f27273549d5b44f0c3e2aac1		 pdf-font-stream PDF embedded font (sfnt) at offset 0x666D 5000 bytes
font_01_sfnt_off00007752.bin
6f205aada5d6d054c80a85f2fbf6047ceec4c4a51aab0ed6e74995f9aff41afe		 pdf-font-stream PDF embedded font (sfnt) at offset 0x7752 10456 bytes

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