Malicious PDF — malware analysis report

Static analysis result for SHA-256 374ec1e2e2d9184c…

MALICIOUS

PDF

351.0 KB Created: 2015-08-28 11:38:05 +03:00 Authoring application: wkhtmltopdf 0.12.2.4 (via Qt 4.8.6)
MD5: e80add7370a7dad37eddd2fdcb94e589 SHA-1: add01ffe5e182911cb1eda09afff149f74a6b574 SHA-256: 374ec1e2e2d9184c87304e117a406ca737fa534a39822d6ac1f305a9a8285e7b
92 Risk Score

Malware Insights

MITRE ATT&CK
T1200 Hardware Add-in T1059 Command and Scripting Interpreter

The PDF was flagged by a machine learning classifier and contains a direct link to a known malicious redirector. The link's URL suggests a lure related to installing mods for Minecraft, which is a common tactic for phishing or malware delivery. No scripts were extracted, but the presence of the malicious link is sufficient evidence of malicious intent.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9980

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 http://botcraftman.ru/?lip&keyword=%D0%BA%D0%B0%D0%BA+%D1%83%D1%81%D1%82%D0%B0%D0%BD%D0%BE%D0%B2%D0%B8%D1%82%D1%8C+%D0%BC%D0%BE%D0%B4%D1%8B+%D0%BD%D0%B0+%D0%BC%D0%B0%D0%B9%D0%BD%D0%BA%D1%80%D0%B0%D1%84%D1%82+152+%D1%8E%D1%82%D1%83%D0%B1&charset=utf-8
    • http://img0.liveinternet.ru/images/attach/c/7//4802/4802439_zhurnal__vuydachi__i_.pdf
    • http://img0.liveinternet.ru/images/attach/c/7//4802/4802424_skachat__klient__minecraft_.pdf
    • http://img0.liveinternet.ru/images/attach/c/7//4802/4802479_skachat__microsoft__excel_.pdf

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off000533ea.bin
ca9a39e99b79323f90e689f54616b37e1490ec783a16ef64aa326aac08fe1dda		 pdf-font-stream PDF embedded font (sfnt) at offset 0x533EA 9708 bytes
font_01_sfnt_off00054f22.bin
bd7f87fcc708251ea68a75f0119e2cea023edb7f3ba7ad92a4b15c8cfa976b21		 pdf-font-stream PDF embedded font (sfnt) at offset 0x54F22 14880 bytes

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