Malicious PDF — malware analysis report

Static analysis result for SHA-256 92c4c18b0540a7f9…

MALICIOUS

PDF

386.6 KB Created: 2015-08-28 00:43:36 +03:00 Authoring application: wkhtmltopdf 0.12.2.4 (via Qt 4.8.6)
MD5: 452f12d7f5e7421fe682fd4050e2e4d1 SHA-1: 950d77a94fd91b94e5dbfb89d9c29051f65f75e1 SHA-256: 92c4c18b0540a7f9307f5f5089125d72b280928b8fc2efb88e8cd3dc5382c8cb
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 malicious redirector link. The embedded URL `http://botcraftman.ru/?lip&keyword=longman+dictionary+of+english+language+and+culture&charset=utf-8` is identified as a known malicious redirector. This suggests the document's primary purpose is to lure the user to this malicious site, likely for further exploitation.

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=longman+dictionary+of+english+language+and+culture&charset=utf-8
    • http://img1.liveinternet.ru/images/attach/c/7//4789/4789034_filmuy__pro__shkola_.pdf
    • http://img0.liveinternet.ru/images/attach/c/7//4788/4788343_.pdf
    • http://img0.liveinternet.ru/images/attach/c/7//4788/4788837_ne__udalos__proverit_.pdf

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0005c072.bin
8f9bf6aa80d8cdb7bd266beb394fc3c6534982d24987b3c2111683043c5291cd		 pdf-font-stream PDF embedded font (sfnt) at offset 0x5C072 10564 bytes
font_01_sfnt_off0005dcb3.bin
523306ef8d00eab25c2b0d23cc9c91e3d59e417309aac80a906f0790d34750bc		 pdf-font-stream PDF embedded font (sfnt) at offset 0x5DCB3 15084 bytes

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