Malicious PDF — malware analysis report

Static analysis result for SHA-256 9cfc71572c11c020…

MALICIOUS

PDF

151.4 KB Created: 2015-08-24 00:42:11 +03:00 Authoring application: wkhtmltopdf 0.12.2.4 (via Qt 4.8.6)
MD5: 2a92d512fe50731fed138b2121c3cb68 SHA-1: 07be445f1a65d0f6558a3e485b66b874e7bd9c31 SHA-256: 9cfc71572c11c020aec5e4e8c3ad8d588f4024f9850a8bd208c0e95638a208ff
62 Risk Score

Malware Insights

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

The PDF file contains an embedded URL that points to a known malicious redirector. This heuristic indicates the document is likely designed to lure the user to a malicious website. No scripts were extracted from this sample, and the document body was heavily obfuscated and truncated, preventing further analysis of its specific content or intent beyond the malicious link.

Machine Learning

  • Nyx PDF Classifier clean score 0.1401

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=might&charset=utf-8
    • http://img0.liveinternet.ru/images/attach/c/6//4694/4694029_instrukciya_.pdf
    • http://img1.liveinternet.ru/images/attach/c/6//4693/4693434_skachat__besplatno__hituy_.pdf
    • http://img0.liveinternet.ru/images/attach/c/6//4694/4694109_primeruy__keysov__s_.pdf

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0002178a.bin
55a000417637a16695fb1cab5630391485e75afac4ade26d69b8063d68e3f9c5
pdf-font-stream PDF embedded font (sfnt) at offset 0x2178A 7744 bytes
font_01_sfnt_off00022e20.bin
8e50343beef02e60280021a4d2dd29f7e5de6e4f34b06b04d97df8425494baf4
pdf-font-stream PDF embedded font (sfnt) at offset 0x22E20 15560 bytes