Malicious PDF — malware analysis report

Static analysis result for SHA-256 57eb4cebb176376e…

MALICIOUS

PDF

360.1 KB Created: 2015-08-28 17:26:22 +03:00 Authoring application: wkhtmltopdf 0.12.2.4 (via Qt 4.8.6)
MD5: 33c7f6e538355715333fa19fde226507 SHA-1: 3d01bec4fd59eb89bf47d76ce9a774867d914a8c SHA-256: 57eb4cebb176376ea30579944a50d7630e7d291ffbcb95c466688b8d0800d185
90 Risk Score

Malware Insights

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

The PDF contains a critical heuristic firing for a malicious redirector link pointing to http://botcraftman.ru/. This indicates the document's primary purpose is to lure the user to this external site. The ML classifier also strongly flagged this PDF as malicious. No scripts were extracted, and the document body was unreadable, but the presence of the malicious URL is sufficient evidence for the attack pattern.

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=tohatsu+98+%D0%B8%D0%BD%D1%81%D1%82%D1%80%D1%83%D0%BA%D1%86%D0%B8%D1%8F&charset=utf-8
    • http://img1.liveinternet.ru/images/attach/c/7//4809/4809105_skachat__beluyy_.pdf
    • http://img1.liveinternet.ru/images/attach/c/7//4809/4809114_via__high__definition_.pdf
    • http://img1.liveinternet.ru/images/attach/c/7//4809/4809102_skachat__zvuk__hrusta_.pdf

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off000551bf.bin
5e4ea1a0963ddfa607078d82cc5bd117d605307586c5109bd26551150175cf10		 pdf-font-stream PDF embedded font (sfnt) at offset 0x551BF 9708 bytes
font_01_sfnt_off00056d00.bin
4fb897695164488f8748d488bc0e7e5a225ba75699e9c0d9d2fbd5b0dad5d657		 pdf-font-stream PDF embedded font (sfnt) at offset 0x56D00 16948 bytes

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