Malicious PDF — malware analysis report

Static analysis result for SHA-256 cc24645531e97c92…

MALICIOUS

PDF

359.1 KB Created: 2015-08-28 18:16:26 +03:00 Authoring application: wkhtmltopdf 0.12.2.4 (via Qt 4.8.6)
MD5: e20514b1fd5537d12dee5846b729acea SHA-1: 34b015465ab815cd6a4524e2c5afb2a7b848fa3a SHA-256: cc24645531e97c92ad35549d0d0dd137e62a1f427b6a88d5b5912c20b29ec391
92 Risk Score

Malware Insights

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

The PDF contains a link to a known malicious redirector, botcraftman.ru. This heuristic, combined with a high ML classifier score, strongly indicates malicious intent. The primary goal appears to be redirecting the user to a harmful site, likely for phishing or to download further malware. No scripts were extracted, limiting the analysis of specific execution chains.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9961

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=%D1%80%D0%B5%D1%84%D0%B5%D1%80%D0%B0%D1%82+%D0%BD%D0%B0+%D1%82%D0%B5%D0%BC%D1%83+%D1%81%D1%82%D1%80%D0%B0%D0%BD%D1%8B+%D0%BC%D0%B8%D1%80%D0%B0+3+%D0%BA%D0%BB%D0%B0%D1%81%D1%81&charset=utf-8
    • http://img1.liveinternet.ru/images/attach/c/7//4809/4809676_oskar__dlya__muyshki_.pdf
    • http://img1.liveinternet.ru/images/attach/c/7//4809/4809868_ivermektin_.pdf
    • http://img1.liveinternet.ru/images/attach/c/7//4809/4809212_dozhd__torrent_.pdf

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0005566b.bin
2fc8f985f4d76e8a0b19deeb6fbefa4c73e775560fd48712ae5f657dc5a4b7dd		 pdf-font-stream PDF embedded font (sfnt) at offset 0x5566B 8040 bytes
font_01_sfnt_off00056dbf.bin
36cc30b8cb0ab30263e0ff367f507d38a8708ad5701e0437bc809cd52bee677f		 pdf-font-stream PDF embedded font (sfnt) at offset 0x56DBF 14752 bytes

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