Malicious PDF — malware analysis report

Static analysis result for SHA-256 042a3169b5c449fd…

MALICIOUS

PDF

357.4 KB Created: 2015-08-27 09:48:48 +03:00 Authoring application: wkhtmltopdf 0.12.2.4 (via Qt 4.8.6)
MD5: caf6de803ed1ea5af0e255c6f387af12 SHA-1: ee8dcd01ca8aabccc2dea88778b38182fb53b49b SHA-256: 042a3169b5c449fd65cf3c866c2de809a64d172d6c91d4c6b383d3e19fefcbfe
92 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF contains a link to a known malicious redirector, botcraftman.ru, which is likely intended to lure the user into downloading malware or visiting a phishing site. The document body, though heavily obfuscated, contains keywords related to 'resident evil remake', suggesting a lure to entice users to click the malicious link. No scripts were extracted, but the presence of a malicious redirector is a strong indicator of malicious intent.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9980

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%A1%D0%BA%D0%B0%D1%87%D0%B0%D1%82%D1%8C+%D1%81%D0%BE%D1%85%D1%80%D0%B0%D0%BD%D0%B5%D0%BD%D0%B8%D0%B5+%D0%B4%D0%BB%D1%8F+resident+evil+remake&charset=utf-8
    • http://img1.liveinternet.ru/images/attach/c/7//4771/4771827_skachat__mod__sobeit_.pdf
    • http://img1.liveinternet.ru/images/attach/c/7//4771/4771808_skachat__programmu__dlya_.pdf
    • http://img1.liveinternet.ru/images/attach/c/7//4771/4771857_skachat__dubstep__drum_.pdf

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off000548fc.bin
c3d5586e4f514e10ef88f11906105f23341a62b799d00be2adb93b7cbc32c13e		 pdf-font-stream PDF embedded font (sfnt) at offset 0x548FC 11508 bytes
font_01_sfnt_off0005686c.bin
a7fa38a90cb59276677412ff906f37db526ae00f0ae9bbbea8adf138253b648b		 pdf-font-stream PDF embedded font (sfnt) at offset 0x5686C 14832 bytes

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