Malicious PDF — malware analysis report

Static analysis result for SHA-256 890a940399140547…

MALICIOUS

PDF

353.8 KB Created: 2015-08-28 11:58:05 +03:00 Authoring application: wkhtmltopdf 0.12.2.4 (via Qt 4.8.6)
MD5: 6ae1333a4abfb416a3f30fc47837b143 SHA-1: 80c0b2dcae41e224cb62a3406f2de2a78dce68bc SHA-256: 890a940399140547ce7c5a90b91d5175d2be0eec514d897d6ca38a9e8221d6b9
92 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF contains a heuristic firing for a malicious redirector link pointing to 'http://botcraftman.ru/'. The embedded content, though heavily obfuscated, appears to be related to software cracking, suggesting a social engineering lure. The ML classifier also flagged this PDF as malicious with high confidence.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9977

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=crack+%D0%B4%D0%BB%D1%8F+football+manager+2015&charset=utf-8
    • http://img0.liveinternet.ru/images/attach/c/7//4802/4802360_panasonic_.pdf
    • http://img0.liveinternet.ru/images/attach/c/7//4802/4802679_yetot__mir__priduman_.pdf
    • http://img0.liveinternet.ru/images/attach/c/7//4802/4802388_programma__dlya__redaktirovaniya_.pdf

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00053c22.bin
c311bca51d2f8ecdf68ea822547cbc8ea680597c495a9fb6140121d570d7a61f
pdf-font-stream PDF embedded font (sfnt) at offset 0x53C22 9760 bytes
font_01_sfnt_off00055765.bin
6cb20cb917083c8deb233356e289c106d38166c9b5f3194087e1ceb2ef5263ca
pdf-font-stream PDF embedded font (sfnt) at offset 0x55765 15820 bytes