Malicious PDF — malware analysis report

Static analysis result for SHA-256 df0a80e9c8ba2e8d…

MALICIOUS

PDF

359.3 KB Created: 2015-08-28 11:31:18 +03:00 Authoring application: wkhtmltopdf 0.12.2.4 (via Qt 4.8.6)
MD5: 60cb1c1ff3315b39067f402711c174eb SHA-1: 83232cea17e07d239db87f2266f350a0d8b39e4b SHA-256: df0a80e9c8ba2e8da15b1c74582d79fee80028990b25705f83f47ce00e4560ae
68 Risk Score

Malware Insights

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

The PDF file contains an embedded JavaScript stream and a critical heuristic firing indicates a malicious redirector link. The redirector URL is http://botcraftman.ru/?lip&keyword=%D0%B2%D0%BB%D0%B0%D0%B4%D0%B8%D0%BC%D0%B8%D1%80+%D1%80%D0%B0%D1%86%D0%BA%D0%B8%D0%BD+%D0%B2%D0%B8%D0%BA%D0%B8%D0%BF%D0%B5%D0%B4%D0%B8%D1%8F&charset=utf-8. This suggests the document is designed to redirect the user to a malicious site, likely for further exploitation or phishing.

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.
  • Embedded JS stream low PDF_JS
    PDF references a /JS stream. Generic JavaScript is common in benign forms; specific dangerous APIs are scored by separate rules.
  • 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%B2%D0%BB%D0%B0%D0%B4%D0%B8%D0%BC%D0%B8%D1%80+%D1%80%D0%B0%D1%86%D0%BA%D0%B8%D0%BD+%D0%B2%D0%B8%D0%BA%D0%B8%D0%BF%D0%B5%D0%B4%D0%B8%D1%8F&charset=utf-8
    • http://img0.liveinternet.ru/images/attach/c/7//4802/4802359_panorama__romanov__o_.pdf
    • http://img0.liveinternet.ru/images/attach/c/7//4802/4802369_slavyanoariyskie__veduy__skachat_.pdf
    • http://img0.liveinternet.ru/images/attach/c/7//4802/4802391_raspisanie__avtobusov__sarapul_.pdf

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00055c09.bin
1bf230445c1aecb875ad05fbd22de18028e578ff67e5c00ace7cf5b731a6315f		 pdf-font-stream PDF embedded font (sfnt) at offset 0x55C09 7024 bytes
font_01_sfnt_off0005705f.bin
154114e7b27324363c02d727bfb7684bb5daa1b8964660fc08b4be2a5358c3af		 pdf-font-stream PDF embedded font (sfnt) at offset 0x5705F 14356 bytes

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