Malicious PDF — malware analysis report

Static analysis result for SHA-256 8cbe3a575729d056…

MALICIOUS

PDF

366.6 KB Created: 2015-08-28 15:05:38 +03:00 Authoring application: wkhtmltopdf 0.12.2.4 (via Qt 4.8.6)
MD5: 01b4214ec9381bce15f99ff2eebb6ef0 SHA-1: 3b01bd1aed2e08c09c1f0c92a44614830ca8b581 SHA-256: 8cbe3a575729d0561fedd8fabc2d52b422fd49edf64aa09f58c0bb76b8279389
90 Risk Score

Malware Insights

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

The PDF contains a link to a known malicious redirector, http://botcraftman.ru/, which is presented to the user as a download for 'Microsoft flight simulator 2014'. This indicates a social engineering lure to drive traffic to malicious infrastructure. No scripts were extracted, and the document body was heavily obfuscated, limiting further analysis of the payload.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9973

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=microsoft+flight+simulator+2014+%D1%81%D0%BA%D0%B0%D1%87%D0%B0%D1%82%D1%8C+%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//4804/4804056_itogovuyy__test__po_.pdf
    • http://img0.liveinternet.ru/images/attach/c/7//4806/4806358_strategiya__golubogo__okeana_.pdf
    • http://img1.liveinternet.ru/images/attach/c/7//4803/4803441_mein__kampf__skachat_.pdf

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00056c87.bin
65ddf347efece16b520c627f5e8a25d59bb731457ae8c2efb3ebaebb9cc815e3		 pdf-font-stream PDF embedded font (sfnt) at offset 0x56C87 10260 bytes
font_01_sfnt_off0005892f.bin
0f04a584ca9f5eccf64126c7052f47d0745444ea09827dc3c4ec212857121bb8		 pdf-font-stream PDF embedded font (sfnt) at offset 0x5892F 16388 bytes

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