Malicious PDF — malware analysis report

Static analysis result for SHA-256 45b95a1296da54d4…

MALICIOUS

PDF

360.7 KB Created: 2015-08-25 15:36:38 +03:00 Authoring application: wkhtmltopdf 0.12.2.4 (via Qt 4.8.6)
MD5: dc1a070ea133c3909ff9479b5556154a SHA-1: d0aa3f829e617fd6dfce83f8c04252c0ffa8039a SHA-256: 45b95a1296da54d4814487c2361d52583258c7f09af83220757c1b0a65c16355
90 Risk Score

Malware Insights

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

The PDF contains an embedded link flagged as a malicious redirector. The ML classifier also strongly indicated maliciousness. The primary attack vector appears to be directing the user to the malicious URL http://botcraftman.ru/ which is likely intended to host further malicious content or phishing pages.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9979

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+%D0%BA%D0%B0%D0%B2%D0%BA%D0%B0%D0%B7%D1%81%D0%BA%D0%BE%D0%B5+%D0%BF%D0%BE%D1%80%D0%BD%D0%BE&charset=utf-8
    • http://img1.liveinternet.ru/images/attach/c/7//4731/4731760_skachat__syempluy__dlya_.pdf
    • http://img1.liveinternet.ru/images/attach/c/7//4731/4731235_skachat__igru__saylent_.pdf
    • http://img0.liveinternet.ru/images/attach/c/7//4732/4732535_skachat__cracked__by_.pdf

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00056345.bin
1f72d5358d4b9f8e6380e0da113f531a1d548c0d03e57e6cc334773037b0492c		 pdf-font-stream PDF embedded font (sfnt) at offset 0x56345 7496 bytes
font_01_sfnt_off0005792b.bin
1c4f63f414b6ade0e0576b3d5c211768995923b1d60c810d7aa489eb17892588		 pdf-font-stream PDF embedded font (sfnt) at offset 0x5792B 14052 bytes

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