Malicious PDF — malware analysis report

Static analysis result for SHA-256 fa38f6e131388336…

MALICIOUS

PDF

340.8 KB Created: 2015-08-24 00:15:15 +03:00 Authoring application: wkhtmltopdf 0.12.2.4 (via Qt 4.8.6)
MD5: f6c807879d9f5501ac5f80c4886bbb5a SHA-1: d5c69060760ff407c9ee433d72f47f8667282519 SHA-256: fa38f6e13138833684dadd3b943dad03cc277a252d760f3d64db6af3be133f8f
90 Risk Score

Malware Insights

MITRE ATT&CK
T1566.002 Spearphishing Attachment T1204.001 User Execution: Malicious Link

The PDF file was flagged by a critical heuristic for linking to known malicious redirector infrastructure. The embedded URL, http://botcraftman.ru/..., is likely part of a phishing or malware distribution chain. No scripts were extracted, and the document body was unreadable, but 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%BA%D0%B0%D0%BA+%D1%81%D0%BA%D0%B0%D1%87%D0%B0%D1%82%D1%8C+%D0%BC%D0%B0%D0%B9%D0%BD%D0%BA%D1%80%D0%B0%D1%84%D1%82+1+5+2&charset=utf-8
    • http://img1.liveinternet.ru/images/attach/c/6//4693/4693606_siyanie__vuysshih__bogov_.pdf
    • http://img1.liveinternet.ru/images/attach/c/6//4693/4693343_pes__2013__ukrainskaya_.pdf
    • http://img0.liveinternet.ru/images/attach/c/6//4692/4692995_pourochnoe__planirovanie__po_.pdf

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00051295.bin
502ddf637876024a589028e6bb6b7630b3b7a6dd0d41100224699b6a1865a207
pdf-font-stream PDF embedded font (sfnt) at offset 0x51295 8948 bytes
font_01_sfnt_off00052ad6.bin
9057e38d30d04b0c0009030126203c9c44aacb1830b8b18cd4b7928eba087c9d
pdf-font-stream PDF embedded font (sfnt) at offset 0x52AD6 12924 bytes