Malicious PDF — malware analysis report

Static analysis result for SHA-256 12344abe50051ff6…

MALICIOUS

PDF

361.3 KB Created: 2015-08-26 13:15:01 +03:00 Authoring application: wkhtmltopdf 0.12.2.4 (via Qt 4.8.6)
MD5: ad9bd65b7f3ef26c7e2751b8350de26a SHA-1: 74ba901ff46046cf9b1baa676dba7648a163bc8a SHA-256: 12344abe50051ff6177e5a2071d33d1701f8c1a0ed5a62403527ad1b0349ca9e
92 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF was flagged by multiple heuristics as malicious, specifically for containing a link to a known malicious redirector. The embedded URL, http://botcraftman.ru/..., is highly suspicious and likely serves as a lure to a phishing or malware distribution site. No scripts were extracted, but the presence of the malicious link is sufficient evidence of malicious intent.

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=%D0%BF%D1%80%D0%BE%D0%B3%D1%80%D0%B0%D0%BC%D0%BC%D0%B0+%D0%B4%D0%BB%D1%8F+%D1%81%D0%BE%D0%B7%D0%B4%D0%B0%D0%BD%D0%B8%D1%8F+%D1%81%D0%B2%D0%B0%D0%B4%D0%B5%D0%B1%D0%BD%D0%BE%D0%B3%D0%BE+%D1%84%D0%B8%D0%BB%D1%8C%D0%BC%D0%B0&charset=utf-8
    • http://img0.liveinternet.ru/images/attach/c/7//4752/4752190_nikolaev__shkola__igruy_.pdf
    • http://img0.liveinternet.ru/images/attach/c/7//4752/4752696_kak__vzlomat__akkaunt_.pdf
    • http://img0.liveinternet.ru/images/attach/c/7//4754/4754337_omskiy__promuyshlenno__yekonomicheskiy_.pdf

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0005629b.bin
ebf602d22276b6e3866e55c07be4f90d844dd1863df49188c8ce3ba2b9bce39e
pdf-font-stream PDF embedded font (sfnt) at offset 0x5629B 8476 bytes
font_01_sfnt_off00057ba8.bin
c6ce7fa994665111b0b9979bbe82d37ec50c8fcce78e3b4b37bfe656f62d1230
pdf-font-stream PDF embedded font (sfnt) at offset 0x57BA8 13564 bytes