Malicious PDF — malware analysis report

Static analysis result for SHA-256 3f95d9f1dfbcb37e…

MALICIOUS

PDF

42.1 KB Created: 2020-08-23 08:06:06 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 6fb774efe6d553067a8dee7b52116226 SHA-1: 25ed2e01362d428308df1e08ed9625b582d225fc SHA-256: 3f95d9f1dfbcb37ebe3c47296648a63bcdd5bcda2de3b769aa1413dfea77e65b
120 Risk Score

Malware Insights

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

The PDF contains a critical heuristic firing for a malicious redirector link pointing to 'ttraff.ru'. Additionally, it exhibits characteristics of a PDF link farm, embedding numerous external links, with the primary one leading to a Shopify domain. The document body, though heavily obfuscated, contains the same malicious URL, suggesting an attempt to drive traffic to potentially malicious content.

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=godless+netflix+parents+guide
    • http://files.charteredengineers.org/uploads/1/3/2/7/132712508/6ae92.pdf
    • http://tijadep.850plants.com/uploads/1/3/0/7/130739344/gamiteduzalare-nodejezefago-rewuvej.pdf
    • https://cdn.shopify.com/s/files/1/0431/6761/3087/files/adjektivdeklination_ohne_artikel_bungen.pdf
    • https://cdn.shopify.com/s/files/1/0437/2289/9608/files/legal_services_contract_template.pdf
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/89647405972.pdf
    • https://cdn.shopify.com/s/files/1/0429/9948/0473/files/60383468977.pdf
    • https://cdn.shopify.com/s/files/1/0439/9919/9390/files/adobe_reader_pro_trial.pdf
    • https://cdn.shopify.com/s/files/1/0434/2297/4117/files/88386974887.pdf
    • https://cdn.shopify.com/s/files/1/0430/3532/8663/files/parexanusozijapelol.pdf
    • https://cdn.shopify.com/s/files/1/0434/2421/9293/files/tixezawu.pdf
    • https://cdn.shopify.com/s/files/1/0431/7026/7300/files/34067951280.pdf
    • https://cdn.shopify.com/s/files/1/0430/8877/3269/files/6768418581.pdf
    • https://cdn.shopify.com/s/files/1/0434/1828/8284/files/rokadadapolerisemifoma.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_off0000677f.bin
54c0e8322d1628d2c6c3031a147ff056163642cf244135bdead6b3689426a5f8		 pdf-font-stream PDF embedded font (sfnt) at offset 0x677F 5308 bytes
font_01_sfnt_off000079a7.bin
52a329718bfae24c77b4cb39db6769ca9154c0f9846b71f8bcac9cfa46c7ed65		 pdf-font-stream PDF embedded font (sfnt) at offset 0x79A7 9980 bytes

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