Malicious PDF — malware analysis report

Static analysis result for SHA-256 ec600dd590d3d662…

MALICIOUS

PDF

183.4 KB Created: 2015-08-08 10:26:06 +03:00 Authoring application: wkhtmltopdf 0.12.2.1 (via Qt 4.8.6)
MD5: 3178a07713cdebb67d473f6c6079bbb5 SHA-1: c151608d40e15fa7e712f731cdd99842b2d979dc SHA-256: ec600dd590d3d6622819645c39275fa92ec27360113da95c6337024fa7f87a6f
90 Risk Score

Malware Insights

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

The PDF file was flagged by a machine learning classifier and contains a link to a known malicious redirector infrastructure. The URL 'http://botcraftman.ru/?lip&keyword=%D0%B0%D1%81%D0%BF%D0%B8%D1%80%D0%B8%D0%BD+windows+8&charset=utf-8' is the primary indicator of malicious intent, suggesting a phishing or malware delivery attempt. No scripts were extracted from this sample.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9982

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%B0%D1%81%D0%BF%D0%B8%D1%80%D0%B8%D0%BD+windows+8&charset=utf-8
    • http://fastpic.ru/
    • http://www.liveinternet.ru/click
    • http://img0.liveinternet.ru/images/attach/c/6//4384/4384994_shanson_irina_krug_i_aleksey_bryancev_albom_slushat_onlayn.pdf
    • http://img0.liveinternet.ru/images/attach/c/6//4384/4384276_skachat_pesni_gruppuy_7b_besplatno.pdf
    • http://img0.liveinternet.ru/images/attach/c/6//4384/4384236_kak_skachat_foto_s_odnoklassnikov.pdf

Extracted artifacts 6

Files carved from inside the sample during analysis.

FilenameKindSourceSize
stream_048_off0002a234.bin
29fb8db411713a35738166bb10563ddf6b6f6a63b8ddbe41bbe7338294d59eb3		 decompressed-pdf-stream PDF FlateDecoded stream at offset 0x2A234 6304 bytes
font_00_sfnt_off00023ba3.bin
880e53e6f12106514012eaabb19a261b9f8ae03d695445fc59a5b9b5a1293281		 pdf-font-stream PDF embedded font (sfnt) at offset 0x23BA3 3556 bytes
font_01_sfnt_off00024926.bin
318383c30bfff1b42f412f540bc79b3b5e544568b206b6863cd27e4309978899		 pdf-font-stream PDF embedded font (sfnt) at offset 0x24926 14700 bytes
font_02_sfnt_off00027746.bin
7763445fb6a06395734d9c6e0ec01d69e7c68dfde61d0412e32b64ba02b48b2c		 pdf-font-stream PDF embedded font (sfnt) at offset 0x27746 14536 bytes
font_04_sfnt_off0002b3ef.bin
819f9cc5156bfe3dae03045446d677a19b5879270357875344f9514601da73e3		 pdf-font-stream PDF embedded font (sfnt) at offset 0x2B3EF 6084 bytes
font_05_sfnt_off0002c384.bin
9364d8c42993f0db1eb41a63b15a48dd56cef5056a611ab8e91dd81183a5a95e		 pdf-font-stream PDF embedded font (sfnt) at offset 0x2C384 3752 bytes

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