Malicious PDF — malware analysis report

Static analysis result for SHA-256 4f21daa7b812dcdc…

MALICIOUS

PDF

357.1 KB Created: 2015-08-28 11:40:13 +03:00 Authoring application: wkhtmltopdf 0.12.2.4 (via Qt 4.8.6)
MD5: c561a5dbb6fb44ff6aac5b1dbc9a466f SHA-1: e841fe58d4d46ff8750127dfd4a75dfc31934ff8 SHA-256: 4f21daa7b812dcdc89eaedf8c054d4b8ab84919eabe04b48c9ca5b8657b1055c
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 assigned a high probability of maliciousness. The embedded URL points to botcraftman.ru, which is likely part of a phishing or malware distribution chain. No scripts were extracted, and the document body was heavily obfuscated and truncated, limiting further analysis of the specific lure.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9897

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%BF%D1%80%D0%BE%D0%B3%D1%80%D0%B0%D0%BC%D0%BC%D0%B0+%D0%B4%D0%BB%D1%8F+%D0%B2%D1%8B%D1%80%D0%B0%D0%B2%D0%BD%D0%B8%D0%B2%D0%B0%D0%BD%D0%B8%D1%8F+%D0%B7%D0%B2%D1%83%D0%BA%D0%B0&charset=utf-8
    • http://img0.liveinternet.ru/images/attach/c/7//4802/4802502_stalker__zov__pripyati_.pdf
    • http://img0.liveinternet.ru/images/attach/c/7//4802/4802360_panasonic_.pdf
    • http://img0.liveinternet.ru/images/attach/c/7//4802/4802461_bleach__skachat_.pdf

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0005446c.bin
174328383abcb8ac047ce8fc01dd470d76ed7caecede211857b419b397667aab		 pdf-font-stream PDF embedded font (sfnt) at offset 0x5446C 8740 bytes
font_01_sfnt_off00055e03.bin
9c5130f0c783d7d26bbf2f40140a4e1a4a53864479fadb10a6c3ffce68429956		 pdf-font-stream PDF embedded font (sfnt) at offset 0x55E03 18904 bytes

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