Malicious PDF — malware analysis report

Static analysis result for SHA-256 4685c91056f60bb7…

MALICIOUS

PDF

297.4 KB Created: 2015-08-28 11:45:46 +03:00 Authoring application: wkhtmltopdf 0.12.2.4 (via Qt 4.8.6)
MD5: 08392f798109bc88911fbe9191880c27 SHA-1: fa8204c344b2c3cf5daa641761d1dc35fc13be72 SHA-256: 4685c91056f60bb79005fc3c5b10a2370e763c342c6133511bcddd5413579559
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 containing a link to a known malicious redirector. The ML classifier also indicated a high probability of maliciousness. The embedded URL http://botcraftman.ru/... is confirmed as a malicious redirector. No scripts were extracted, but the presence of the malicious link strongly suggests a phishing or malware delivery attempt.

Machine Learning

  • Nyx PDF Classifier malicious score 0.7357

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%81%D0%BF%D1%80%D0%B0%D0%B2%D0%BE%D1%87%D0%BD%D0%B8%D0%BA+%D1%81%D0%B2%D0%B5%D1%82%D0%BE%D0%B4%D0%B8%D0%BE%D0%B4%D0%BE%D0%B2&charset=utf-8
    • http://img0.liveinternet.ru/images/attach/c/7//4802/4802493_mts__pleer__skachat_.pdf
    • http://img0.liveinternet.ru/images/attach/c/7//4802/4802566_domennuye__sluzhbuy__active_.pdf
    • http://img0.liveinternet.ru/images/attach/c/7//4802/4802523_s__gruzom__po_.pdf

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0004639c.bin
31bb69c49dc99861d99d446379004f425f4cb497dedd9c07a4a7ed36b5b39443		 pdf-font-stream PDF embedded font (sfnt) at offset 0x4639C 7700 bytes
font_01_sfnt_off000479df.bin
f6ef6b71d39cd761152f1b7976fb8ca1b66539398b1aeddf541241a5cfafa14f		 pdf-font-stream PDF embedded font (sfnt) at offset 0x479DF 14616 bytes

Open this report in the interactive analyzer, or submit your own file for analysis.