Malicious PDF — malware analysis report

Static analysis result for SHA-256 06af1f59af31bcb9…

MALICIOUS

PDF

49.1 KB Created: 2020-08-30 02:41:27 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: f70045ee23d3c0753e9bde8f32076edf SHA-1: ec4daa91660c8e56d23262f6fa1aa9c5cc6cee0f SHA-256: 06af1f59af31bcb9765a4cf2b8bd084414b874ad43abcf6f9e94e0856f4eae50
154 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1059.007 JavaScript

This PDF document contains a link farm designed to redirect users to malicious infrastructure, masquerading as a "mp3 download". The primary malicious URL identified is https://ttraff.com/wix?keyword=mp3+download+lil+donald+do+better, which is part of a known redirector. The document also contains numerous links to other PDFs hosted on static.usrfiles.com, likely part of a SEO link farm strategy to improve search engine ranking for malicious content.

Machine Learning

  • Nyx PDF Classifier malicious score 1.0000

Heuristics 4

  • 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.
  • Object number defined twice with different bodies info PDF_DUPLICATE_OBJ_BODY_INCREMENTAL
    The same indirect object (N G) is defined more than once with different body bytes. First-wins and last-wins readers will resolve different content, which is a parser-confusion shape used by targeted PDFs. Body-only differences are common in benign incremental updates, so severity is raised only when the duplicate carries active content.
  • 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=mp3+download+lil+donald+do+better
    • http://fontawesome.iohttp://fontawesome.io/license/
    • http://www.ascendercorp.com/
    • http://www.ascendercorp.com/typedesigners.html
    • https://static.usrfiles.com/ugd/6cfc61_6a435638894f4ef58f57c5eacbf0c346.pdf
    • https://static.usrfiles.com/ugd/b8c837_2c24e4e1eb0944da86694b13644d63f6.pdf
    • https://static.usrfiles.com/ugd/ade4e6_988a1ed5776248c79ed099485bf2312d.pdf
    • https://static.usrfiles.com/ugd/b8c837_6faa324095fc4f1093127f55ec6fec03.pdf
    • https://static.usrfiles.com/ugd/b8c837_122c8ffb822842fb91337fd11e7ec27c.pdf
    • https://static.usrfiles.com/ugd/f1d680_6999a6288a334d44bfb63460e475c8cf.pdf
    • https://static.usrfiles.com/ugd/ea2f88_c8f6d9136413464ca2ead067ebafed3d.pdf
    • https://static.usrfiles.com/ugd/b8c837_dd79669ea32441c2a7b886e7b9b0e282.pdf
    • https://static.usrfiles.com/ugd/fe83c3_1794d84fee2247dc9e50ef17820c8124.pdf
    • https://static.usrfiles.com/ugd/80c1db_0a08c2f2a142461cb5c3be14f82e49d9.pdf
    • https://static.usrfiles.com/ugd/b8c837_4b90efcf3d364fdf8a2a72e895831b98.pdf
    • https://static.usrfiles.com/ugd/4b7290_545fe474523c4b35bdfb47f5f7e7aa4e.pdf
    • https://static.usrfiles.com/ugd/b8c837_ca7214c10c1b47438db081708e9ff2ce.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/
    • http://scripts.sil.org/OFL
    • http://dejavu.sourceforge.net
    • http://dejavu.sourceforge.net/wiki/index.php/License

Extracted artifacts 4

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00004b22.bin
356e021e7a7006eb0f33be76b92851191e680e81fdf745d3c082578eb854a5ef		 pdf-font-stream PDF embedded font (sfnt) at offset 0x4B22 3036 bytes
font_01_sfnt_off00005834.bin
7b1dd6d157fb20865ae1086d289de1c7cddd7bda05d9ad5eaa39c447271b7604		 pdf-font-stream PDF embedded font (sfnt) at offset 0x5834 5176 bytes
font_02_sfnt_off000069f2.bin
01e7afa067cfac54fe335a64d9a6dec4d7e851a2d220e305b83bf95db123ff69		 pdf-font-stream PDF embedded font (sfnt) at offset 0x69F2 14164 bytes
font_03_sfnt_off00009716.bin
001d00114279cda904ec87ee5caf81ece5266ef333c342f0ca5ce216f4908131		 pdf-font-stream PDF embedded font (sfnt) at offset 0x9716 18776 bytes

Open this report in the interactive analyzer, or submit your own file for analysis.