Malicious PDF — malware analysis report

Static analysis result for SHA-256 3d79a9957312886a…

MALICIOUS

PDF

353.4 KB Created: 2015-08-28 00:06:28 +03:00 Authoring application: wkhtmltopdf 0.12.2.4 (via Qt 4.8.6)
MD5: 8f634d5567bf1583a483b34de18925f3 SHA-1: 7644c7b1afc24a1b07fb5dffd9e879aa7ff4aa3a SHA-256: 3d79a9957312886a9fe4acc5ef107dead3ebbc8eb3daae16bdf1551f39b92da4
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 a known malicious redirector. This suggests the document is designed to lure users to a malicious website. No scripts were extracted, and the document body was heavily obfuscated and truncated, preventing further analysis of the specific lure. The primary IOC is the malicious redirector URL.

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=%D0%BA%D0%BB%D1%8E%D1%87+%D0%BE%D0%B1%D0%BD%D0%BE%D0%B2%D0%BB%D0%B5%D0%BD%D0%B8%D1%8F+win7+%D0%BC%D0%B0%D0%BA%D1%81%D0%B8%D0%BC%D0%B0%D0%BB%D1%8C%D0%BD%D0%B0%D1%8F&charset=utf-8
    • http://img0.liveinternet.ru/images/attach/c/7//4788/4788412_tanec__s__drakonami_.pdf
    • http://img0.liveinternet.ru/images/attach/c/7//4788/4788265_3d__filmuy__skachat_.pdf
    • http://img0.liveinternet.ru/images/attach/c/7//4788/4788350_yekzamenacionnuye__biletuy__i_.pdf

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00053fd4.bin
f112ac23bf4f9a62d4211277521bb96f17829743f1c46848e453df18009789ba		 pdf-font-stream PDF embedded font (sfnt) at offset 0x53FD4 8872 bytes
font_01_sfnt_off0005599d.bin
d6938aa11faf2e1ae7473c927e37e07e4269c5a5a514690a2b45a55bc30a06a9		 pdf-font-stream PDF embedded font (sfnt) at offset 0x5599D 14160 bytes

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