Malicious PDF — malware analysis report

Static analysis result for SHA-256 a93d2bc2fca968f5…

MALICIOUS

PDF

362.4 KB Created: 2015-08-27 23:58:10 +03:00 Authoring application: wkhtmltopdf 0.12.2.4 (via Qt 4.8.6)
MD5: 68c294b1bbf9ca580024211e61a75b87 SHA-1: 58156b22365ac79ddb5365aa6f2f93a7a06f70b2 SHA-256: a93d2bc2fca968f591f07ba50516d676ef5095958d787dc1424f02479e174aad
120 Risk Score

Malware Insights

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

The PDF file was detected as malicious by ClamAV and contains a critical heuristic firing for a malicious redirector link. The embedded URL, http://botcraftman.ru/, is identified as a known malicious redirector. The document body is heavily obfuscated and unreadable, providing no further context on the specific lure. 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-9140121-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Dropper.Agent-9140121-0
  • 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%AD%D0%BA%D0%B7%D0%B0%D0%BC%D0%B5%D0%BD%D0%B0%D1%86%D0%B8%D0%BE%D0%BD%D0%BD%D1%8B%D0%B5+%D0%B1%D0%B8%D0%BB%D0%B5%D1%82%D1%8B+%D0%B8+%D0%BE%D1%82%D0%B2%D0%B5%D1%82%D1%8B+%D0%B0%D0%B2%D1%82%D0%BE%D0%BA%D1%80%D0%B0%D0%BD%D0%BE%D0%B2%D1%89%D0%B8%D0%BA%D0%BE%D0%B2&charset=utf-8
    • http://img1.liveinternet.ru/images/attach/c/7//4787/4787777_skachat__vh__dlya_.pdf
    • http://img1.liveinternet.ru/images/attach/c/7//4787/4787835_skachat__igruy__na_.pdf
    • http://img1.liveinternet.ru/images/attach/c/7//4787/4787998_tom__i__dzherri_.pdf

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off000566a2.bin
37f9f0917fd7b459449d0612214f0b36a3377ebeaa58bea13e1c1b3611e8e279		 pdf-font-stream PDF embedded font (sfnt) at offset 0x566A2 8424 bytes
font_01_sfnt_off00057f26.bin
bd454e5a6562ef950e535e6601c8b1838e4acddd229b241c7871aed8ded93c60		 pdf-font-stream PDF embedded font (sfnt) at offset 0x57F26 13312 bytes

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