Malicious PDF — malware analysis report

Static analysis result for SHA-256 93899624ac519c0c…

MALICIOUS

PDF

374.3 KB Created: 2015-08-29 03:06:05 +03:00 Authoring application: wkhtmltopdf 0.12.2.4 (via Qt 4.8.6)
MD5: 216f45c2b9f5c77ccea0213239f79341 SHA-1: 98da3d4b6d92a400611f13b0af97521b48b6baf4 SHA-256: 93899624ac519c0c630f2695f4836370f7bceec5b916ae7f29259adcb0294d40
92 Risk Score

Malware Insights

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

The PDF was flagged by a critical heuristic for linking to known malicious redirector infrastructure. The embedded URL, http://botcraftman.ru/, is confirmed as malicious. While no scripts were extracted, the presence of this malicious link strongly suggests a phishing or malware delivery attempt. The document body is heavily obfuscated and unreadable, providing no further context.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9974

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%BA%D0%B0%D1%87%D0%B0%D1%82%D1%8C+viber+trashbox&charset=utf-8
    • http://img1.liveinternet.ru/images/attach/c/7//4819/4819626_usacheva__shkolyar__shkolyar_.pdf
    • http://img0.liveinternet.ru/images/attach/c/7//4820/4820068_angliyskiy__yazuyk__5_.pdf
    • http://img0.liveinternet.ru/images/attach/c/7//4818/4818588_clean__master__skachat_.pdf

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0005904d.bin
459f8c86bac44d07dc5dbafb89160c193af7c63198fabb9f847368e4492990cf		 pdf-font-stream PDF embedded font (sfnt) at offset 0x5904D 8512 bytes
font_01_sfnt_off0005a784.bin
5c55378c3fa9d259fb01a5f541743320db855a65fa13ba52c7244507ba1f7a22		 pdf-font-stream PDF embedded font (sfnt) at offset 0x5A784 16684 bytes

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