Malicious PDF — malware analysis report

Static analysis result for SHA-256 a0fefe040066cf7d…

MALICIOUS

PDF

355.5 KB Created: 2015-08-25 15:03:41 +03:00 Authoring application: wkhtmltopdf 0.12.2.4 (via Qt 4.8.6)
MD5: a311dc39613b5ef5f10cf1af6c3e1b4c SHA-1: 204d683303b68bfb341002c1b8a2123818094264 SHA-256: a0fefe040066cf7d91906a381a22cfb244256c08341251b33a7c484273cb78b4
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 further 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 0.9980

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%A1%D0%BA%D0%B0%D1%87%D0%B0%D1%82%D1%8C+zxhn+h218n+wireless+n300&charset=utf-8
    • http://img1.liveinternet.ru/images/attach/c/7//4731/4731852_shablonuy__diplomov__dlya_.pdf
    • http://img1.liveinternet.ru/images/attach/c/7//4731/4731459_pedagogika__uchebnik__chitat_.pdf
    • http://img1.liveinternet.ru/images/attach/c/7//4731/4731995_likvidaciya_.pdf

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00054431.bin
0c2f704e64bedf770cb218bd4ccdc8780f2bcc5253b9c903145e42618e9a820c		 pdf-font-stream PDF embedded font (sfnt) at offset 0x54431 10200 bytes
font_01_sfnt_off00056176.bin
df2fe191ee2db9eab5def26b9c0bd4bf298dd97460d271cfa400e3b1cf88b153		 pdf-font-stream PDF embedded font (sfnt) at offset 0x56176 14316 bytes

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