Malicious PDF — malware analysis report

Static analysis result for SHA-256 2b1e3943116a8678…

MALICIOUS

PDF

379.6 KB Created: 2015-08-20 15:39:19 +03:00 Authoring application: wkhtmltopdf 0.12.2.4 (via Qt 4.8.6)
MD5: 1afae03eba6f0d347bf354e1a6145de8 SHA-1: 5321cb0e5ffc12ba7d95ab0213afb6e52b4a6b53 SHA-256: 2b1e3943116a8678af0aa3acd11d260912af276503dceaa9dadc02b200d08820
90 Risk Score

Malware Insights

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

The PDF file was flagged by multiple heuristics as malicious, specifically for containing a link to known malicious redirector infrastructure. The embedded URL http://botcraftman.ru/... is identified as a malicious redirector. This suggests the document's primary purpose is to lure the user to a compromised or malicious website.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9943

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+%D0%BA%D0%BE%D0%BD%D1%82%D1%80%D0%BE%D0%BB%D1%8C%D0%BD%D0%BE+%D0%B8%D0%B7%D0%BC%D0%B5%D1%80%D0%B8%D1%82%D0%B5%D0%BB%D1%8C%D0%BD%D1%8B%D0%B5+%D0%BC%D0%B0%D1%82%D0%B5%D1%80%D0%B8%D0%B0%D0%BB%D1%8B+%D0%BF%D0%BE+%D0%B3%D0%B5%D0%BE%D0%B3%D1%80%D0%B0%D1%84%D0%B8%D0%B8+8+%D0%BA%D0%BB%D0%B0%D1%81%D1%81&charset=utf-8
    • http://img1.liveinternet.ru/images/attach/c/6//4641/4641984_rezultatuy_egye_po_russkomu_yazuyku_2015_kurganskaya_oblast.pdf
    • http://img0.liveinternet.ru/images/attach/c/6//4642/4642626_logicheskie_zadachi_po_matematike_3_klass_s_otvetami_i_resheniem.pdf
    • http://img1.liveinternet.ru/images/attach/c/6//4641/4641346_bgtech_sidechain_dynamics_skachat.pdf

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0005a0ba.bin
62139358a7ee823934f73b7eac6d911e58e61f2407007cf436d33edbdda81ab3
pdf-font-stream PDF embedded font (sfnt) at offset 0x5A0BA 8276 bytes
font_01_sfnt_off0005b880.bin
395a5815c97615a5e91cea46007def2944cbcb1f22ccc2f9f190e06fe880976d
pdf-font-stream PDF embedded font (sfnt) at offset 0x5B880 18088 bytes