Malicious PDF — malware analysis report

Static analysis result for SHA-256 4376b43972216ed6…

MALICIOUS

PDF

380.2 KB Created: 2015-08-28 17:29:11 +03:00 Authoring application: wkhtmltopdf 0.12.2.4 (via Qt 4.8.6)
MD5: 941cd2e4b1cafd9223196df91ea7be43 SHA-1: 61300c124aaa127e998bd5227b09b9baa8b6a54f SHA-256: 4376b43972216ed6f5c4194fe48cc1c3bc8bcb9db50fec45c32646ab11965d19
120 Risk Score

Malware Insights

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

The PDF file contains a critical heuristic firing indicating it is a malicious redirector. The embedded URL `http://botcraftman.ru/...` is identified as known malicious infrastructure. This suggests the document's primary purpose is to lure the user to this malicious site, likely for phishing or to download further malware. No scripts were extracted from this sample.

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.
  • ClamAV: Pdf.Dropper.Agent-8793973-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Dropper.Agent-8793973-0
  • 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%BF%D1%80%D0%B8%D0%BA%D0%B0%D0%B7+%D0%BE+%D0%B7%D0%B0%D0%B2%D0%B5%D1%80%D1%88%D0%B5%D0%BD%D0%B8%D0%B8+%D0%B0%D1%82%D1%82%D0%B5%D1%81%D1%82%D0%B0%D1%86%D0%B8%D0%B8+%D1%80%D0%B0%D0%B1%D0%BE%D1%87%D0%B8%D1%85+%D0%BC%D0%B5%D1%81%D1%82+%D0%B8+%D1%83%D1%82%D0%B2%D0%B5%D1%80%D0%B6%D0%B4%D0%B5%D0%BD%D0%B8%D0%B8+%D0%B5%D0%B5+%D1%80%D0%B5%D0%B7%D1%83%D0%BB%D1%8C%D1%82%D0%B0%D1%82%D0%BE%D0%B2&charset=utf-8
    • http://img1.liveinternet.ru/images/attach/c/7//4809/4809145_ay__karli__ya_.pdf
    • http://img1.liveinternet.ru/images/attach/c/7//4809/4809131_skachat__aim__dlya_.pdf
    • http://img1.liveinternet.ru/images/attach/c/7//4809/4809157_skachat__film__zhivaya_.pdf

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0005a9c4.bin
d01558324e5091fb97fb38e339e2903ed6cc8b9b2229aa613c45480770ca1c18		 pdf-font-stream PDF embedded font (sfnt) at offset 0x5A9C4 8596 bytes
font_01_sfnt_off0005c2ee.bin
02db214ba9db929883b3f61cfb893298f083a8a3343981ab07e3b4c4dfa33424		 pdf-font-stream PDF embedded font (sfnt) at offset 0x5C2EE 14860 bytes

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