Malicious PDF — malware analysis report

Static analysis result for SHA-256 35b73a01d6699a89…

MALICIOUS

PDF

361.7 KB Created: 2015-08-26 09:54:55 +03:00 Authoring application: wkhtmltopdf 0.12.2.4 (via Qt 4.8.6)
MD5: 7b7c78793380d28da077e832c267c445 SHA-1: 8618dbac178cb3581cfedf4b07c8c1657d839651 SHA-256: 35b73a01d6699a898faa501a27735bb26e23dabb4a0d3f17ecaad0e92dc98fdd
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 known malicious redirector infrastructure. The embedded URL 'http://botcraftman.ru/...' is identified as a malicious redirector. This suggests the document is designed to lure users to a compromised or malicious site. No scripts were extracted, and the document body was heavily obfuscated, limiting further analysis of the specific lure.

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=%D1%81%D1%86%D0%B5%D0%BD%D0%B0%D1%80%D0%B8%D0%B9+%D0%BD%D0%B0+%D1%8E%D0%B1%D0%B8%D0%BB%D0%B5%D0%B9+40+%D0%BB%D0%B5%D1%82+%D0%B6%D0%B5%D0%BD%D1%89%D0%B8%D0%BD%D0%B5&charset=utf-8
    • http://img1.liveinternet.ru/images/attach/c/7//4751/4751806_mir__do__i_.pdf
    • http://img1.liveinternet.ru/images/attach/c/7//4751/4751997_koduy__universitetov_.pdf
    • http://img0.liveinternet.ru/images/attach/c/7//4752/4752007_skachat__muzuyku__besplatno_.pdf

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00056619.bin
12a550f1ed9d9077d2d7dfdd88d47107851691362dbcfb166b1f44484e133087		 pdf-font-stream PDF embedded font (sfnt) at offset 0x56619 8224 bytes
font_01_sfnt_off00057ddb.bin
3a460f4f128ce295365a2a492294e1313c8b087edbd34a2473b043b980dc5428		 pdf-font-stream PDF embedded font (sfnt) at offset 0x57DDB 13040 bytes

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