Malicious PDF — malware analysis report

Static analysis result for SHA-256 e9ac1bf5a234baaa…

MALICIOUS

PDF

70.6 KB Created: 2020-08-18 14:16:14 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 74a6a828e9da5879ece4aab39a618afa SHA-1: 349c33169aa43375030da1f8c627275afeffec41 SHA-256: e9ac1bf5a234baaad6f8102c63eae0caf14f209d0c788839e39ff39bf4f1c412
120 Risk Score

Malware Insights

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

The PDF contains a critical heuristic firing for a malicious redirector link pointing to 'ttraff.com'. Additionally, it exhibits a PDF SEO link farm behavior, with numerous links pointing to external PDFs, many hosted on Shopify. The document body, though heavily obfuscated, contains the malicious URL, suggesting a lure to a phishing or malware distribution 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.com/pify?keyword=bootstrap+dashboard+example
    • http://files.brantheritagequiltersguild.com/uploads/1/3/1/8/131871569/jejun-juvoniwe-ratafarufa-juwetaxevufawo.pdf
    • http://lesixoga.tianyugu.com/uploads/1/3/1/4/131438233/5723019.pdf
    • http://files.usczbusinessforum.com/uploads/1/3/2/8/132814958/moziboxelu.pdf
    • http://gazeberop.officialmilag.com/uploads/1/3/0/8/130874493/f5792061aa1cb0d.pdf
    • http://fewabunan.mindfulmovementwithbecky.com/uploads/1/3/0/7/130775320/kowuledugitujedesu.pdf
    • https://cdn.shopify.com/s/files/1/0433/1044/8798/files/61265721623.pdf
    • https://cdn.shopify.com/s/files/1/0431/8353/8331/files/sonapuximis.pdf
    • https://cdn.shopify.com/s/files/1/0450/1697/3476/files/realismo_filosofico_representantes.pdf
    • https://cdn.shopify.com/s/files/1/0431/4516/7008/files/toefl_ibt_reading_practice_test.pdf
    • https://cdn.shopify.com/s/files/1/0428/1729/0407/files/pezam.pdf
    • https://cdn.shopify.com/s/files/1/0460/4008/8740/files/49099615929.pdf
    • https://cdn.shopify.com/s/files/1/0435/0243/6512/files/56522031207.pdf
    • https://cdn.shopify.com/s/files/1/0429/3361/6803/files/79905252306.pdf
    • https://cdn.shopify.com/s/files/1/0439/6656/2462/files/11962774781.pdf
    • https://cdn.shopify.com/s/files/1/0428/3439/5295/files/jadijijovoxotetilezeris.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_off0000d956.bin
19a976aa3987216008fe708cc647cc6f2fbbcc8bcb8bee1b6a94bfcb7fac10e9		 pdf-font-stream PDF embedded font (sfnt) at offset 0xD956 5456 bytes
font_01_sfnt_off0000ebb9.bin
3bf1718a4e59b6c4402332950b4b617a8fb2b0f09cb78c988b8dd283acda4bfa		 pdf-font-stream PDF embedded font (sfnt) at offset 0xEBB9 9880 bytes

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