Malicious PDF — malware analysis report

Static analysis result for SHA-256 6852514bebb0635e…

MALICIOUS

PDF

32.0 KB Created: 2020-11-07 16:21:55 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 1e17844242fd841ad46475b973ad4f25 SHA-1: f8f2cc63222404048ccf582f21689ff327863ca5 SHA-256: 6852514bebb0635ea841264f178a7621a79416d2fc59b27ddf7362145a80db92
92 Risk Score

Malware Insights

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

The PDF contains a link to a known malicious redirector, indicating an attempt to lead the user to a harmful site. The document body, though heavily obfuscated, contains the same URL. The ML classifier also flagged this PDF as malicious. No scripts were extracted from this sample.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9994

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://gettraff.ru/123?keyword=shawnee+tribe+food+source
    • https://cdn-cms.f-static.net/uploads/4378164/normal_5f8b76aeb22ca.pdf
    • https://tovozilulu.weebly.com/uploads/1/3/0/8/130873983/f4f9f865deebe8.pdf
    • http://www.ascendercorp.com/
    • http://www.ascendercorp.com/typedesigners.html
    • https://fatalovit.files.wordpress.com/2020/11/pentatonic_arpeggios.pdf
    • https://zetetojowu.files.wordpress.com/2020/11/vupiwime.pdf
    • https://s3.amazonaws.com/sesafefanulokam/alternative_news_sites_to_yahoo.pdf
    • https://s3.amazonaws.com/saxefi/bajoxuridapaleretebawodi.pdf
    • https://ranulog.files.wordpress.com/2020/11/f_test_anova_degrees_of_freedom.pdf
    • https://pesasopereza.files.wordpress.com/2020/11/the_siren_kiera_cass_download.pdf
    • https://s3.amazonaws.com/gupuso/94400963730.pdf
    • https://uploads.strikinglycdn.com/files/00fb2bd7-dda9-48cd-9010-783f8b2d7711/koxuxefudaregibi.pdf
    • https://lodoxepal.files.wordpress.com/2020/11/reremuradivuvevedivogobid.pdf
    • http://scripts.sil.org/OFL

Extracted artifacts 1

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00005fed.bin
cc4732d3b41146e5e704fda00a8938c161005107bfdabd84b61f695c3fa50bd3
pdf-font-stream PDF embedded font (sfnt) at offset 0x5FED 5412 bytes