Malicious PDF — malware analysis report

Static analysis result for SHA-256 580a6658377f2be1…

MALICIOUS

PDF

363.1 KB Created: 2015-08-19 14:24:50 +03:00 Authoring application: wkhtmltopdf 0.12.2.4 (via Qt 4.8.6)
MD5: aff0d5795b6fcd91e08e47f749a63123 SHA-1: ea77e5a8fd3a70e1c4b3e64f56564151f47d5217 SHA-256: 580a6658377f2be17a92a3f123af758156023e2bcdee964f82122f19f6fd8d70
90 Risk Score

Malware Insights

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

The PDF file contains a link to a known malicious redirector, http://botcraftman.ru/, which is disguised as a download for Windows 7. This suggests a phishing or social engineering attack aimed at tricking users into visiting a compromised site. The ML classifier also flagged this PDF with high confidence. No scripts were extracted from this sample.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9955

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=windows+7+home+premium+oa+cis+and+ge+%D1%81%D0%BA%D0%B0%D1%87%D0%B0%D1%82%D1%8C+%D1%82%D0%BE%D1%80%D1%80%D0%B5%D0%BD%D1%82&charset=utf-8
    • http://img0.liveinternet.ru/images/attach/c/6//4626/4626487_stanislav_sergeev_tovarisch_zhandarm_2_chitat.pdf
    • http://img0.liveinternet.ru/images/attach/c/6//4626/4626454_mech_2_sezon_skachat_torrent_vse_serii.pdf
    • http://img0.liveinternet.ru/images/attach/c/6//4626/4626763_skachat_mod_na_maynkraft_164_na_oruzhie_mashinuy_samoletuy_tanki.pdf

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0005660a.bin
06cbaf59a8c4bb169ce3743da784ef6d53b061eeaba6f90f1b72e0f468128cee		 pdf-font-stream PDF embedded font (sfnt) at offset 0x5660A 9788 bytes
font_01_sfnt_off0005806a.bin
3634a9064a94adb4f4dff6b488aeb212c820a8953740dc61022ebcc1eb7b44e0		 pdf-font-stream PDF embedded font (sfnt) at offset 0x5806A 13864 bytes

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