Malicious PDF — malware analysis report

Static analysis result for SHA-256 259facdd12df5cde…

MALICIOUS

PDF

397.7 KB Created: 2015-08-26 19:46:10 +03:00 Authoring application: wkhtmltopdf 0.12.2.4 (via Qt 4.8.6)
MD5: 9eb00a5556a66ffc79acf69714bdaaaf SHA-1: ecc9b57f5f7177cb7276efb097dd9fa493e30369 SHA-256: 259facdd12df5cde75168a70603a8793a9c05cb02a1a821822cef65d79158c45
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's primary purpose is to lure the user to a harmful external resource.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9948

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%BE%D1%82%D0%B2%D0%B5%D1%82%D1%8B+%D0%BD%D0%B0+%D1%8D%D0%BA%D0%B7%D0%B0%D0%BC%D0%B5%D0%BD%D0%B0%D1%86%D0%B8%D0%BE%D0%BD%D0%BD%D1%8B%D0%B5+%D0%B1%D0%B8%D0%BB%D0%B5%D1%82%D1%8B+%D0%BF%D0%BE+%D0%B3%D0%B5%D0%BE%D0%B3%D1%80%D0%B0%D1%84%D0%B8%D0%B8+9+%D0%BA%D0%BB%D0%B0%D1%81%D1%81+2015+%D1%84%D1%80%D0%BE%D0%BC%D0%B1%D0%B5%D1%80%D0%B3&charset=utf-8
    • http://img1.liveinternet.ru/images/attach/c/7//4763/4763219_skachat__launcher__s_.pdf
    • http://img0.liveinternet.ru/images/attach/c/7//4762/4762682_skachat__misheni__dlya_.pdf
    • http://img0.liveinternet.ru/images/attach/c/7//4762/4762171_.pdf

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0005ecd9.bin
16dbc81e3a4843882d3cb1f60c3c8c8a97272688d23006649f9bdaeb1995f0a9		 pdf-font-stream PDF embedded font (sfnt) at offset 0x5ECD9 8916 bytes
font_01_sfnt_off00060733.bin
2f386acd72442a43ab4bf26364d71d8baedb152974ffbc53b5e67305b721893f		 pdf-font-stream PDF embedded font (sfnt) at offset 0x60733 14976 bytes

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