Malicious PDF — malware analysis report

Static analysis result for SHA-256 c48cd0c8d77316ab…

MALICIOUS

PDF

368.6 KB Created: 2015-08-22 08:50:13 +03:00 Authoring application: wkhtmltopdf 0.12.2.4 (via Qt 4.8.6)
MD5: f2429abaa1150abafe636f0ffdcf2b8f SHA-1: 776d468b17739e99ffb3e75178965e31f1e443e0 SHA-256: c48cd0c8d77316abde3d46cf701ba3c506716a248c53081dadbe1a9e42cb4a67
90 Risk Score

Malware Insights

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

The PDF contains a critical heuristic firing indicating a link to known malicious redirector infrastructure. The ML classifier also flagged the PDF with high confidence. 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 malicious site, likely for further exploitation or malware delivery.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9975

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=cronos+%D0%B1%D0%B0%D0%B7%D0%B0+%D0%B4%D0%B0%D0%BD%D0%BD%D1%8B%D1%85+%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//4674/4674457_otvetuy_na_gia_po_literature_9_klass_2015.pdf
    • http://img0.liveinternet.ru/images/attach/c/6//4674/4674458_skachat_lyubimuye_buyvshimi_ne_buyvayut.pdf

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00057ce3.bin
a1a7abbcedbc95f5fdcac907c0762d6aa3cdc87513de6d8a189a6d68653a4318		 pdf-font-stream PDF embedded font (sfnt) at offset 0x57CE3 8176 bytes
font_01_sfnt_off00059455.bin
b5b1a6c541fa71fa339bcb5c1e51fab13625a03fd407753247505e422f0b4949		 pdf-font-stream PDF embedded font (sfnt) at offset 0x59455 14740 bytes

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