Malicious PDF — malware analysis report

Static analysis result for SHA-256 a30f119ea7ef9c01…

MALICIOUS

PDF

377.6 KB Created: 2015-08-29 12:57:21 +03:00 Authoring application: wkhtmltopdf 0.12.2.4 (via Qt 4.8.6)
MD5: 22ace0ad260459daf075159957faf413 SHA-1: 71098f4ba6b469ab02c1db6864c23c5fdf065116 SHA-256: a30f119ea7ef9c016e4ff6c4f8482ed9a69ca7272c6d66d7a3c3562ae9b0ea2b
92 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF contains an embedded URL that is flagged as a known malicious redirector. The ML classifier also strongly indicates maliciousness. The primary purpose appears to be directing the user to the malicious domain, likely to deliver a secondary payload or conduct a phishing attack. No scripts were extracted, but the embedded URL is a critical indicator.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9972

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%BC%D0%BE%D0%B4%D0%B5%D0%BB%D0%B8%D1%81%D1%82+%D0%BA%D0%BE%D0%BD%D1%81%D1%82%D1%80%D1%83%D0%BA%D1%82%D0%BE%D1%80+%D1%81%D0%BA%D0%B0%D1%87%D0%B0%D1%82%D1%8C+%D1%82%D0%BE%D1%80%D1%80%D0%B5%D0%BD%D1%82&charset=utf-8
    • http://img0.liveinternet.ru/images/attach/c/7//4830/4830058_skachat__igru__lego_.pdf
    • http://img0.liveinternet.ru/images/attach/c/7//4830/4830840_tekstilnuye__cvetuy__svoimi_.pdf
    • http://img1.liveinternet.ru/images/attach/c/7//4831/4831351_akt__ob__okonchanii_.pdf

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0005a7b4.bin
ec9bf869d0ae4ca8c6b9e16636317dd3a540fb1417e95b4c808cc4cdf7e4e892		 pdf-font-stream PDF embedded font (sfnt) at offset 0x5A7B4 7428 bytes
font_01_sfnt_off0005bd54.bin
71ab96a312c4fbf65c00fbf5cde7cc512905d6d50743a491d8aaca4b9a6737fe		 pdf-font-stream PDF embedded font (sfnt) at offset 0x5BD54 13188 bytes

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