Malicious PDF — malware analysis report

Static analysis result for SHA-256 7bcce10b56ff33ed…

MALICIOUS

PDF

357.7 KB Created: 2015-08-29 03:16:28 +03:00 Authoring application: wkhtmltopdf 0.12.2.4 (via Qt 4.8.6)
MD5: fc3efb8e1d7447e2d41b8b1724ae0337 SHA-1: dfb3805374a2816635ac0720a58768130290773d SHA-256: 7bcce10b56ff33ed6e890342f49bbd7451e120abe7f8eb1def88089d85b8181b
90 Risk Score

Malware Insights

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

The PDF document was flagged by a machine learning classifier and contains a critical heuristic indicating a link to known malicious redirector infrastructure. The embedded URL points to 'botcraftman.ru', which is associated with malicious activity. The document body is heavily obfuscated and does not provide further context on the specific lure, but the presence of the malicious URL strongly suggests a phishing or malware delivery attempt.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9951

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%B8%D1%82%D0%BE%D0%B3%D0%BE%D0%B2%D1%8B%D0%B5+%D1%82%D0%B5%D1%81%D1%82%D1%8B+%D0%BF%D0%BE+%D0%BC%D0%B0%D1%82%D0%B5%D0%BC%D0%B0%D1%82%D0%B8%D0%BA%D0%B5+3+%D0%BA%D0%BB%D0%B0%D1%81%D1%81+%D1%81+%D0%BE%D1%82%D0%B2%D0%B5%D1%82%D0%B0%D0%BC%D0%B8+2015&charset=utf-8
    • http://img0.liveinternet.ru/images/attach/c/7//4818/4818833_skachat__sbornik__programm_.pdf
    • http://img1.liveinternet.ru/images/attach/c/7//4819/4819822_chituy__dlya__stalker_.pdf
    • http://img0.liveinternet.ru/images/attach/c/7//4818/4818138_slayd__shou__na_.pdf

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00054be0.bin
d94051c120e7d1899a9c6dbc61659a075de235bdb67a6926f1935876b5ad6258		 pdf-font-stream PDF embedded font (sfnt) at offset 0x54BE0 9932 bytes
font_01_sfnt_off00056759.bin
bac2a242c40e93fd9e8a151ab3cf651a05db96b3f624ccd53d7a8ac4537b4fbe		 pdf-font-stream PDF embedded font (sfnt) at offset 0x56759 15112 bytes

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