Malicious PDF — malware analysis report

Static analysis result for SHA-256 36b56f3ed74c7db9…

MALICIOUS

PDF

340.6 KB Created: 2015-08-20 07:20:28 +03:00 Authoring application: wkhtmltopdf 0.12.2.4 (via Qt 4.8.6)
MD5: 1226ef88c8c928c79e0770c01dd9f6b1 SHA-1: 30af4d25a1750753143ffb790c459235cd0ae0fe SHA-256: 36b56f3ed74c7db9aaec153a6e6f941b4102cf1313caaefc359a42302405abf0
90 Risk Score

Malware Insights

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

The PDF file was flagged by a critical heuristic for linking to known malicious redirector infrastructure. The ML classifier also strongly indicated maliciousness. The embedded URL points to botcraftman.ru, which is identified as a malicious redirector. This suggests the document is designed to lure users to a harmful site, likely for phishing or malware delivery.

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%BA%D0%BE%D1%80%D0%B0%D0%BD+%D0%BD%D0%B0+%D0%B0%D1%80%D0%B0%D0%B1%D1%81%D0%BA%D0%BE%D0%BC+%D1%82%D0%B5%D0%BA%D1%81%D1%82&charset=utf-8
    • http://img0.liveinternet.ru/images/attach/c/6//4638/4638795_skachat_rut_dlya_gamekiller.pdf
    • http://img0.liveinternet.ru/images/attach/c/6//4638/4638829_kucakova_konstruirovanie_vo_vtoroy_mladshey_gruppe_skachat.pdf
    • http://img0.liveinternet.ru/images/attach/c/6//4638/4638821_skachat_game_exe_dlya_warface.pdf

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00050a38.bin
d4260bd0554ba00fbf655b7636ecd64095c1364bd4b19962f716b5ef9a56d4ee
pdf-font-stream PDF embedded font (sfnt) at offset 0x50A38 7600 bytes
font_01_sfnt_off00051f49.bin
05d710a08f7ef3fb3af9a1621036df33936adc649a64b14212ff1ec089e55a6c
pdf-font-stream PDF embedded font (sfnt) at offset 0x51F49 16940 bytes