Malicious PDF — malware analysis report

Static analysis result for SHA-256 fef8ce5f82c8de23…

MALICIOUS

PDF

344.4 KB Created: 2015-08-28 13:22:10 +03:00 Authoring application: wkhtmltopdf 0.12.2.4 (via Qt 4.8.6)
MD5: cd04f455ca723cb032409898ddf6624c SHA-1: 1f488c794a798c2ac583cf1fe86a24af61dcaca5 SHA-256: fef8ce5f82c8de2353a3373cb599848b830230c71e23dc56befd01e3b1a6d735
90 Risk Score

Malware Insights

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

The PDF file was flagged by a critical heuristic for containing a link to known malicious redirector infrastructure. The ML classifier also strongly indicated maliciousness. The embedded URL points to 'botcraftman.ru', which is associated with malicious redirects. No scripts were extracted, and the document body was unreadable, but the presence of the malicious link is sufficient evidence for this assessment.

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%B2%D0%BB%D0%B0%D1%81%D1%82%D0%B5%D0%BB%D0%B8%D0%BD+%D0%BA%D0%BE%D0%BB%D0%B5%D1%86+3+%D0%B8%D0%B3%D1%80%D0%B0+%D1%81%D1%82%D1%80%D0%B0%D1%82%D0%B5%D0%B3%D0%B8%D1%8F+%D1%81%D0%BA%D0%B0%D1%87%D0%B0%D1%82%D1%8C+%D1%82%D0%BE%D1%80%D1%80%D0%B5%D0%BD%D1%82&charset=utf-8
    • http://img1.liveinternet.ru/images/attach/c/7//4803/4803954_programma__vayber__dlya_.pdf
    • http://img0.liveinternet.ru/images/attach/c/7//4804/4804138_vstavit__lico__v_.pdf
    • http://img0.liveinternet.ru/images/attach/c/7//4804/4804480_doncova__taynaya__svyaz_.pdf

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off000523bb.bin
a3a109f8f5ef1cd435d691345a12115fd9bffb84fea1b7cbf0648a32be7bfdee		 pdf-font-stream PDF embedded font (sfnt) at offset 0x523BB 7948 bytes
font_01_sfnt_off00053a4f.bin
080cccadcad200bdb559d64ed4a72c5c4ac4353d952466f5690a9413837d7629		 pdf-font-stream PDF embedded font (sfnt) at offset 0x53A4F 12608 bytes

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