Malicious PDF — malware analysis report

Static analysis result for SHA-256 2d382cedbec3839b…

MALICIOUS

PDF

391.7 KB Created: 2015-08-25 09:18:14 +03:00 Authoring application: wkhtmltopdf 0.12.2.4 (via Qt 4.8.6)
MD5: 020c55fcd087b66a0e19b4c87a837f4e SHA-1: 2a21b2bd54cc4eea25d8f80318dce14410d2a377 SHA-256: 2d382cedbec3839b6a7d9b882267049cfbc881326c38cce9e1f1a62e178beb05
90 Risk Score

Malware Insights

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

The PDF file contains a link to a known malicious redirector infrastructure. The ML classifier also strongly indicated maliciousness. While no scripts were extracted, the presence of the malicious URL suggests the document's purpose is to lure the user to a compromised site, likely for further exploitation or credential harvesting.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9928

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%B1%D0%B8%D0%BE%D0%BB%D0%BE%D0%B3%D0%B8%D1%8F+8+%D0%BA%D0%BB%D0%B0%D1%81%D1%81+%D0%BA%D0%BE%D0%BB%D0%B5%D1%81%D0%BE%D0%B2+%D0%BC%D0%B0%D1%88+%D0%B1%D0%B5%D0%BB%D1%8F%D0%B5%D0%B2+%D1%83%D1%87%D0%B5%D0%B1%D0%BD%D0%B8%D0%BA+%D0%BE%D0%BD%D0%BB%D0%B0%D0%B9%D0%BD+%D1%87%D0%B8%D1%82%D0%B0%D1%82%D1%8C&charset=utf-8
    • http://img1.liveinternet.ru/images/attach/c/6//4725/4725832_skachat__igru__maynkraft_.pdf
    • http://img1.liveinternet.ru/images/attach/c/6//4725/4725778_skachat__igru__sleeping_.pdf
    • http://img0.liveinternet.ru/images/attach/c/6//4726/4726190_skachat__igru__soldat_.pdf

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0005d4f8.bin
72f0132a50fda25a7da7298ef4db8affa19813bd1423c53375bdd2248a79eaaa		 pdf-font-stream PDF embedded font (sfnt) at offset 0x5D4F8 8672 bytes
font_01_sfnt_off0005ee45.bin
726ba301acdaaee1f1e63abee42d3edcae727045f629009ed38e4caeeac42740		 pdf-font-stream PDF embedded font (sfnt) at offset 0x5EE45 15440 bytes

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