Malicious PDF — malware analysis report

Static analysis result for SHA-256 eba514c9680dc502…

MALICIOUS

PDF

376.4 KB Created: 2015-08-28 11:31:20 +03:00 Authoring application: wkhtmltopdf 0.12.2.4 (via Qt 4.8.6)
MD5: b690737a981011fd5136a0df17351e48 SHA-1: c90678ac8b0e0b2990c2d256117d20aa1c474c30 SHA-256: eba514c9680dc502bc190b85bbac6092f5b7ad97635a1fc829f06db86ad1736a
90 Risk Score

Malware Insights

MITRE ATT&CK
T1566.002 Spearphishing Attachment T1059.001 PowerShell

The PDF file was flagged by a critical heuristic for linking to known malicious redirector infrastructure. The ML classifier also assigned a high probability of maliciousness. The embedded URL points to botcraftman.ru, which is identified as a malicious redirector. This suggests the document's primary purpose is to redirect users to a harmful destination.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9972

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%B7%D0%B0%D0%B4%D0%B0%D1%87%D0%BD%D0%B8%D0%BA+%D0%BF%D0%BE+%D1%84%D0%B8%D0%B7%D0%B8%D0%BA%D0%B5+%D0%B8%D1%80%D0%BE%D0%B4%D0%BE%D0%B2&charset=utf-8
    • http://img0.liveinternet.ru/images/attach/c/7//4802/4802363_detali__mashin__i_.pdf
    • http://img0.liveinternet.ru/images/attach/c/7//4802/4802368_tank__t72__balkanuy_.pdf
    • http://img0.liveinternet.ru/images/attach/c/7//4802/4802371_shema__ultrazvukovogo_.pdf

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00059bd0.bin
d48f9cd56a44357b99966ae501c962d3b31c697e4600be4666aef78c971c2530		 pdf-font-stream PDF embedded font (sfnt) at offset 0x59BD0 8488 bytes
font_01_sfnt_off0005b4d4.bin
8ed2ffd13d354d5187566c365e68e0f61f4fe98d402f1e979ef35967cf58af7f		 pdf-font-stream PDF embedded font (sfnt) at offset 0x5B4D4 14040 bytes

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