Malicious PDF — malware analysis report

Static analysis result for SHA-256 86fe22abfec759fc…

MALICIOUS

PDF

356.8 KB Created: 2015-08-29 01:47:34 +03:00 Authoring application: wkhtmltopdf 0.12.2.4 (via Qt 4.8.6)
MD5: 09d354bdca10aa7f1485d7c7c5820726 SHA-1: 68eb04beabfa72ff8b9d346ddb8ce5bff05eb033 SHA-256: 86fe22abfec759fc43caabe8bd09ffd63a2b3276c7806734a4fc1e92108b1ae8
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 embedded URL, http://botcraftman.ru/, is identified as a potential entry point for malicious activity. While no scripts were extracted, the presence of this malicious link strongly suggests an attempt to lure the user to a harmful destination.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9889

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=3+%D0%BD%D0%B4%D1%84%D0%BB+2012+%D1%81%D0%BA%D0%B0%D1%87%D0%B0%D1%82%D1%8C+%D0%B1%D0%BB%D0%B0%D0%BD%D0%BA+excel&charset=utf-8
    • http://img0.liveinternet.ru/images/attach/c/7//4818/4818256_shapochka__dlya__devochki_.pdf
    • http://img1.liveinternet.ru/images/attach/c/7//4817/4817524_programma__2100__2_.pdf
    • http://img1.liveinternet.ru/images/attach/c/7//4817/4817804_akt__o__neyavke_.pdf

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off000545f6.bin
813b9bfd1ca20c397d8273d7ef8136cf4c545e35cbd55a6148ac9b1e92571173		 pdf-font-stream PDF embedded font (sfnt) at offset 0x545F6 8268 bytes
font_01_sfnt_off00055da1.bin
22b91f50419a1052846d8d0ace445ab3d631cee6827215fb94ad0c8201c1b06e		 pdf-font-stream PDF embedded font (sfnt) at offset 0x55DA1 17908 bytes

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