Malicious PDF — malware analysis report

Static analysis result for SHA-256 fc7a8830a6d6eb69…

MALICIOUS

PDF

349.2 KB Created: 2015-08-28 11:31:05 +03:00 Authoring application: wkhtmltopdf 0.12.2.4 (via Qt 4.8.6)
MD5: 55e72fe714a5f6ef766cf943017dd625 SHA-1: ccde6f36a3d24d7084ac90368e1c82ce03393e7c SHA-256: fc7a8830a6d6eb697f7e392b4974de0883028c6b38ea367894279af7c96af7ff
60 Risk Score

Malware Insights

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

The PDF file contains a link to a known malicious redirector, botcraftman.ru. This link is presented in a way that suggests a Flash player download for a Nokia N8, a common social engineering tactic to lure users into clicking malicious links. The document body is heavily obfuscated, preventing a deeper analysis of its content, but the presence of the malicious URL is a strong indicator of malicious intent. No scripts were extracted from this sample.

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=Flash+player++nokia+n8&charset=utf-8
    • http://img0.liveinternet.ru/images/attach/c/7//4802/4802371_shema__ultrazvukovogo_.pdf
    • http://img0.liveinternet.ru/images/attach/c/7//4802/4802380_skachat__minecraft__0_.pdf
    • http://img0.liveinternet.ru/images/attach/c/7//4802/4802365_funbox__skachat_.pdf

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00052677.bin
9234761bccd2edb1eb5345f30761fd4241fe8f130911e4d8b3e54ce278f90310		 pdf-font-stream PDF embedded font (sfnt) at offset 0x52677 9984 bytes
font_01_sfnt_off00054111.bin
a00422dbb942f05d249c63ef017a30f28e6f6f81d44a110bc37f0730cc4e923f		 pdf-font-stream PDF embedded font (sfnt) at offset 0x54111 17900 bytes

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