Malicious PDF — malware analysis report

Static analysis result for SHA-256 a068a10b3c12e12f…

MALICIOUS

PDF

381.7 KB Created: 2015-08-28 18:48:18 +03:00 Authoring application: wkhtmltopdf 0.12.2.4 (via Qt 4.8.6)
MD5: 002abfbae2f64f55a0cc1bddc63f9c73 SHA-1: 82176dbcd036f5c113c2bd97de9d80aa082dc38b SHA-256: a068a10b3c12e12f1e4baffe462582bbc6a440f62459bb632c2c9000d257d144
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/. This indicates the document is intended to lure users to a malicious site, likely for phishing or malware distribution. The ML classifier also strongly flagged this PDF as malicious. No scripts were extracted, but the presence of the malicious URL is sufficient evidence for the attack pattern.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9911

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%D0%BE%D0%BB%D0%B8+%D1%80%D0%BE%D0%B1%D0%BE%D0%BA%D0%B0%D1%80+%D1%87%D0%B5%D1%80%D0%B5%D0%B7+%D1%82%D0%BE%D1%80%D1%80%D0%B5%D0%BD%D1%82+%D0%B2%D1%81%D0%B5+%D1%81%D0%B5%D1%80%D0%B8%D0%B8&charset=utf-8
    • http://img1.liveinternet.ru/images/attach/c/7//4809/4809600_skachat__wow__335_.pdf
    • http://img1.liveinternet.ru/images/attach/c/7//4809/4809233_din__1478__skachat_.pdf
    • http://img1.liveinternet.ru/images/attach/c/7//4809/4809524_telefonnaya__kniga__krivogo_.pdf

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0005b34b.bin
809936968c7f7a6cb9d0faaddbe4575d173376f39c8d47708220da03928e7b1b
pdf-font-stream PDF embedded font (sfnt) at offset 0x5B34B 7120 bytes
font_01_sfnt_off0005c7fc.bin
0cbb2ad0a07d0ff486a52ff89cab20372a2a3b77bd72b80c7b183b99c89a13fa
pdf-font-stream PDF embedded font (sfnt) at offset 0x5C7FC 15252 bytes