Malicious PDF — malware analysis report

Static analysis result for SHA-256 e84814e3363384bb…

MALICIOUS

PDF

360.5 KB Created: 2015-08-23 21:06:45 +03:00 Authoring application: wkhtmltopdf 0.12.2.4 (via Qt 4.8.6)
MD5: c78b3a9ab7f70987677b69aa708c1273 SHA-1: 5169777db71b2e3fec26515bdc7594071d8685a5 SHA-256: e84814e3363384bba8857127063c120328072c090f9812180ad7b351adcbd057
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, botcraftman.ru, which is likely intended to deliver a malicious payload. The embedded URL is disguised as a download for a WiFi hacking program, a common social engineering lure. The ML classifier also strongly indicated maliciousness.

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=%D1%81%D0%BA%D0%B0%D1%87%D0%B0%D1%82%D1%8C+%D0%BF%D1%80%D0%BE%D0%B3%D1%80%D0%B0%D0%BC%D0%BC%D1%83+%D0%B4%D0%BB%D1%8F+%D0%B2%D0%B7%D0%BB%D0%BE%D0%BC%D0%B0+wifi&charset=utf-8
    • http://img0.liveinternet.ru/images/attach/c/6//4690/4690230_razvivayuschie__multiki__dlya_.pdf
    • http://img0.liveinternet.ru/images/attach/c/6//4690/4690227_shreddage__bass__picked_.pdf
    • http://img0.liveinternet.ru/images/attach/c/6//4690/4690076_rekord__super__chart_.pdf

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0005588b.bin
1ca79671e5452668eca4af99bd2dfbdcc74e23aaf5e4dde1da1c0328f39ebdda		 pdf-font-stream PDF embedded font (sfnt) at offset 0x5588B 8588 bytes
font_01_sfnt_off0005714e.bin
beb322763219a650e559cde3d56560eee3a0f5b0c4fb4a48c5fe6c9d84c6f00b		 pdf-font-stream PDF embedded font (sfnt) at offset 0x5714E 16308 bytes

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