Malicious PDF — malware analysis report

Static analysis result for SHA-256 bd8120b533ec35df…

MALICIOUS

PDF

354.8 KB Created: 2015-08-29 01:48:47 +03:00 Authoring application: wkhtmltopdf 0.12.2.4 (via Qt 4.8.6)
MD5: 444b09e4454ec9cea43bd13e444f8b98 SHA-1: 1f67276e2ffcb20862f91efe40c3962fff3399f1 SHA-256: bd8120b533ec35df307c456b0655d2b3774126d69846576a049d01f48f3adeda
60 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, http://botcraftman.ru/. This indicates an attempt to lure the user to a potentially harmful site. No scripts were extracted, and the document body was heavily obfuscated, limiting further analysis of the exact 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%D0%BA%D0%B0%D1%87%D0%B0%D1%82%D1%8C+starbound+update+6&charset=utf-8
    • http://img1.liveinternet.ru/images/attach/c/7//4817/4817503_programmuy__dlya__obscheobrazovatelnuyh_.pdf
    • http://img1.liveinternet.ru/images/attach/c/7//4817/4817991_unity__web__player_.pdf
    • http://img1.liveinternet.ru/images/attach/c/7//4817/4817694_tekstuy__dlya__proslushivaniya_.pdf

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00054010.bin
e1b9bcd0c38af745f93ad43cfa8a6e36fd2b41030f4cb9c858b81736f4b945ad		 pdf-font-stream PDF embedded font (sfnt) at offset 0x54010 9480 bytes
font_01_sfnt_off00055a1b.bin
338d1321b4e64d8d1d989c3f94cc4f53ed28d298b6a458b514eebf0dbe50b680		 pdf-font-stream PDF embedded font (sfnt) at offset 0x55A1B 16240 bytes

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