Malicious PDF — malware analysis report

Static analysis result for SHA-256 e22915f5ca28aa39…

MALICIOUS

PDF

356.0 KB Created: 2015-08-26 10:06:57 +03:00 Authoring application: wkhtmltopdf 0.12.2.4 (via Qt 4.8.6)
MD5: 5623c98b3032ad175a7d46acc824c64c SHA-1: 8c918b1730cf05aca74c5b5f9ac0bf1635cb3e50 SHA-256: e22915f5ca28aa3911714f8af2c8d08e638c3862c1a822caa6be6cdc36ab997d
60 Risk Score

Malware Insights

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

The PDF file contains a critical heuristic firing indicating a link to a known malicious redirector. This suggests the document is designed to lure users to a malicious website. No scripts were extracted, and the document body was heavily obfuscated, limiting further analysis of the specific lure. The primary IOC is the malicious redirector URL.

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%94%D1%83%D0%B1%D0%BB%D1%8C%D0%B3%D0%B8%D1%81+%D0%BD%D0%B0+%D1%82%D0%B5%D0%BB%D0%B5%D1%84%D0%BE%D0%BD+%D0%BD%D0%BE%D0%BA%D0%B8%D0%B0+C6&charset=utf-8
    • http://img1.liveinternet.ru/images/attach/c/7//4751/4751763_kak__oformit__titulnuyy_.pdf
    • http://img1.liveinternet.ru/images/attach/c/7//4751/4751556_zvuk_.pdf
    • http://img0.liveinternet.ru/images/attach/c/7//4752/4752016_uroki__avtokada__2013_.pdf

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00054603.bin
079835ce5bfefbf988b6c03aa6674cdd3865a1df8935dd43c5ec7b4ba2eed777		 pdf-font-stream PDF embedded font (sfnt) at offset 0x54603 8572 bytes
font_01_sfnt_off00055f84.bin
26962dd91cf612c0fd884d7e8d19b60548209c5282769368cfd88b88f62e145c		 pdf-font-stream PDF embedded font (sfnt) at offset 0x55F84 16044 bytes

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