Malicious PDF — malware analysis report

Static analysis result for SHA-256 252366e2024478bb…

MALICIOUS

PDF

38.2 KB Created: 2020-08-16 00:47:48 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 059232d42bdc6baf27fac0c9267796b9 SHA-1: d18000382e45c3a6446bd6cdde4d05c66c66bef7 SHA-256: 252366e2024478bb99263002cbfa31d91ba89a4e96ad1fad080ba15df054cf0c
90 Risk Score

Malware Insights

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

The PDF contains a heuristic firing for a malicious redirector link pointing to 'ttraff.com'. The document body, though heavily obfuscated, also contains this URL, suggesting it's the primary lure. The ML classifier also flagged this PDF with high confidence. The embedded URL is likely intended to redirect the user to a malicious site for further exploitation or credential harvesting.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9999

Heuristics 2

  • 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.
  • 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=license+agreement+template+free
    • http://files.chargedparticles.com/uploads/1/3/0/8/130814295/1675446.pdf
    • https://cdn.shopify.com/s/files/1/0429/6415/6575/files/18147064463.pdf
    • https://cdn.shopify.com/s/files/1/0428/6559/0438/files/75289147866.pdf
    • https://cdn.shopify.com/s/files/1/0434/7065/1542/files/que_es_un_aneurisma.pdf
    • https://cdn.shopify.com/s/files/1/0440/8039/8486/files/dl_44_blank.pdf
    • https://cdn.shopify.com/s/files/1/0432/1830/5179/files/44204102412.pdf
    • https://cdn.shopify.com/s/files/1/0438/5082/5893/files/fundamentals_of_fluid_mechanics_munson.pdf
    • https://cdn.shopify.com/s/files/1/0431/5653/7493/files/yazaki_cable_catalogue.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_off000058d3.bin
5b862b7873ac0bb300e397b9967bf7ffc772d68749467314e093fa4e91d4d0ed		 pdf-font-stream PDF embedded font (sfnt) at offset 0x58D3 5276 bytes
font_01_sfnt_off00006aaa.bin
521367ee5434df849e7bc7015059715ec80a397c7ebcc4e18e2b6cabd6ec4d2b		 pdf-font-stream PDF embedded font (sfnt) at offset 0x6AAA 9900 bytes

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