Malicious PDF — malware analysis report

Static analysis result for SHA-256 d26b67696d89b294…

MALICIOUS

PDF

352.2 KB Created: 2015-08-27 09:57:51 +03:00 Authoring application: wkhtmltopdf 0.12.2.4 (via Qt 4.8.6)
MD5: 295080c7fdc707c472a80bd7e68a47f7 SHA-1: 49351374ea56491b39ce678a2cc21d9ed667ffd7 SHA-256: d26b67696d89b294df26aac3257b851cc1447a6088ac022a7c8fbb19cf4a7cc9
92 Risk Score

Malware Insights

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

The PDF file was flagged by a machine learning classifier and contains a link to a known malicious redirector. The embedded URL, http://botcraftman.ru/?lip&keyword=%D0%A1%D1%83%D0%B4%D0%BE%D0%B2%D1%8B%D0%B5+%D0%B4%D0%B8%D0%B7%D0%B5%D0%BB%D0%B8+%D0%B3%D0%BE%D0%B3%D0%B8%D0%BD+%D1%81%D0%BA%D0%B0%D1%87%D0%B0%D1%82%D1%8C&charset=utf-8, suggests a lure related to court decisions or downloads, aiming to redirect the user to a malicious site. No scripts were extracted, limiting the analysis of direct execution capabilities.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9979

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%A1%D1%83%D0%B4%D0%BE%D0%B2%D1%8B%D0%B5+%D0%B4%D0%B8%D0%B7%D0%B5%D0%BB%D0%B8+%D0%B3%D0%BE%D0%B3%D0%B8%D0%BD+%D1%81%D0%BA%D0%B0%D1%87%D0%B0%D1%82%D1%8C&charset=utf-8
    • http://img0.liveinternet.ru/images/attach/c/7//4772/4772161_skachat__vkontakte__2_.pdf
    • http://img0.liveinternet.ru/images/attach/c/7//4772/4772174_notuy__linkin__park_.pdf
    • http://img1.liveinternet.ru/images/attach/c/7//4771/4771991_.pdf

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00053d5a.bin
f0cb297eddea52a5e6c6b73311dd1cee3cac768d9da28249a0c1346422f8f432		 pdf-font-stream PDF embedded font (sfnt) at offset 0x53D5A 8272 bytes
font_01_sfnt_off00055504.bin
b656ae1a36da2e24645a6ce0853ce96ed4cfe571b8fdeb910f1bcf259716e182		 pdf-font-stream PDF embedded font (sfnt) at offset 0x55504 14368 bytes

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