Malicious PDF — malware analysis report

Static analysis result for SHA-256 19c209a285a4bb8a…

MALICIOUS

PDF

34.1 KB Created: 2020-09-01 01:45:22 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 0111486514a279b4a4f87ede17c9ed27 SHA-1: d15922be7b3ef5b49c1483b541c0f95b21613cbd SHA-256: 19c209a285a4bb8aaa2899c28b025faf96e53fa6daf9a35a553d6df3f1f08730
150 Risk Score

Malware Insights

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

The PDF file contains a heuristic firing for PDF_MALICIOUS_REDIRECTOR_LINK, indicating a link to known malicious infrastructure. The document body, though heavily obfuscated, contains text related to a 'Harbor breeze ceiling fan remote installation manual' and includes the malicious URL. This suggests a social engineering attack aiming to trick the user into clicking the link, likely leading to a phishing or malware download site.

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.com/wix?keyword=harbor+breeze+ceiling+fan+remote+installation+manual
    • https://static.usrfiles.com/ugd/bfbc46_b73c626f47fc4ea8bd42a1ed0b7cd9d9.pdf
    • https://static.usrfiles.com/ugd/89363e_f4a290e104f64580be360a6f025f9108.pdf
    • https://static.usrfiles.com/ugd/217d68_527c1703de494e9a8768e5622332e418.pdf
    • https://cdn.shopify.com/s/files/1/0431/7285/5957/files/glow_lighting_effect_hd.pdf
    • https://static.usrfiles.com/ugd/b8c837_6aecdae74ae14960af658b92618a68f8.pdf
    • https://static.usrfiles.com/ugd/b8c837_b291d8e5287540a7a20338fd5a39b0c9.pdf
    • https://static.usrfiles.com/ugd/cf79db_a506cc0ea2b246b5ab20f1aa842bd01b.pdf
    • https://static.usrfiles.com/ugd/b8c837_5eed99d82ee74410ab42ccda4f97eaf5.pdf
    • https://static.usrfiles.com/ugd/909b15_102f4d84f5f8449b83e534965b400a82.pdf
    • https://static.usrfiles.com/ugd/0f5b72_c17d1d303e644459a6206e424c9ef8ac.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_off000048fc.bin
dbb1defe59e6a4282311d91f69c2b1ce2361a7e1cfb97ad2a7f9edea9bdd339f		 pdf-font-stream PDF embedded font (sfnt) at offset 0x48FC 5352 bytes
font_01_sfnt_off00005b23.bin
6a8ff31955b7927351411ea56f5a29fc471578e15c575327811d96ad378f7357		 pdf-font-stream PDF embedded font (sfnt) at offset 0x5B23 9472 bytes

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