Malicious PDF — malware analysis report

Static analysis result for SHA-256 f62d1d7411e9e126…

MALICIOUS

PDF

374.2 KB Created: 2015-08-25 09:17:14 +03:00 Authoring application: wkhtmltopdf 0.12.2.4 (via Qt 4.8.6)
MD5: 3e444814012b53d7501ae3ed13265000 SHA-1: ec1b6b23b5c4829a1863115edaf47a12aafb1761 SHA-256: f62d1d7411e9e1262d446c450c6d85dc72ad041a700005fa22fdf0e912541782
68 Risk Score

Malware Insights

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

The PDF file contains an embedded JavaScript stream and a critical heuristic firing for a malicious redirector link. The primary IOC is the malicious URL, which is likely used to deliver a secondary payload or phish for credentials. The embedded JavaScript stream may be involved in the redirection process or further malicious activity.

Heuristics 3

  • 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 JS stream low PDF_JS
    PDF references a /JS stream. Generic JavaScript is common in benign forms; specific dangerous APIs are scored by separate rules.
  • 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+%D1%84%D0%B8%D0%BB%D1%8C%D0%BC+%D0%BD%D0%B5%D0%BE%D1%81%D0%BF%D0%BE%D1%80%D0%B8%D0%BC%D1%8B%D0%B9&charset=utf-8
    • http://img1.liveinternet.ru/images/attach/c/6//4725/4725230_.pdf
    • http://img1.liveinternet.ru/images/attach/c/6//4725/4725266_programma__dlya__remonta_.pdf
    • http://img1.liveinternet.ru/images/attach/c/6//4725/4725995_skachat__igru__barboskinuy_.pdf

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00059543.bin
be14edb59b8e04268d347005019b0baedbe00e45eb7dca7c868f72095987338f		 pdf-font-stream PDF embedded font (sfnt) at offset 0x59543 8240 bytes
font_01_sfnt_off0005acd9.bin
c5936c738a4d1238dc7b31d9b50679911987803e594c6f4e40e9a34ed35d5efb		 pdf-font-stream PDF embedded font (sfnt) at offset 0x5ACD9 14064 bytes

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