Malicious PDF — malware analysis report

Static analysis result for SHA-256 d0f95b444ddde58e…

MALICIOUS

PDF

346.8 KB Created: 2015-08-28 13:22:15 +03:00 Authoring application: wkhtmltopdf 0.12.2.4 (via Qt 4.8.6)
MD5: 34c559b28edec944a310b22cbee7b006 SHA-1: 093165cbb0287ea66704b45a07701c2a71529358 SHA-256: d0f95b444ddde58e3b3c8dbc9e2832c01a1a5564a88e7201cc75924799ab2304
90 Risk Score

Malware Insights

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

The PDF file contains an embedded link that points to a known malicious redirector. The ML classifier also flagged this PDF with high confidence. The primary attack vector appears to be luring the user to click on the malicious URL, likely to download further malware or phish for credentials.

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%B0%D0%BD%D0%B5%D0%BA%D0%B4%D0%BE%D1%82%D1%8B+mp3+%D1%87%D0%B5%D1%80%D0%B5%D0%B7+%D1%82%D0%BE%D1%80%D1%80%D0%B5%D0%BD%D1%82&charset=utf-8
    • http://img0.liveinternet.ru/images/attach/c/7//4802/4802686_programmuy_.pdf
    • http://img0.liveinternet.ru/images/attach/c/7//4804/4804173_skachat__programmu__dlya_.pdf
    • http://img1.liveinternet.ru/images/attach/c/7//4803/4803838_indesign__cs6__skachat_.pdf

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00052277.bin
c63c4b850ad38e70a7d378dd7e798ef1e3a17a147f9cb057165bb1284679ff9c		 pdf-font-stream PDF embedded font (sfnt) at offset 0x52277 9060 bytes
font_01_sfnt_off00053c0a.bin
169e99410b535db2f8b09def694b01d1c9a14daf2b94794542987a06f56d64b0		 pdf-font-stream PDF embedded font (sfnt) at offset 0x53C0A 15380 bytes

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