Malicious PDF — malware analysis report

Static analysis result for SHA-256 316e3bf193638096…

MALICIOUS

PDF

353.2 KB Created: 2015-08-25 16:43:02 +03:00 Authoring application: wkhtmltopdf 0.12.2.4 (via Qt 4.8.6)
MD5: 0d5950c780a69c9710172c9e9f969aa0 SHA-1: c68e40fb9e3d1029512b6cc8523d1484d023d027 SHA-256: 316e3bf193638096a10697d2d2c07b70fab3de041b549ae83fff35e8ed5aa4bd
90 Risk Score

Malware Insights

MITRE ATT&CK
T1200 Hardware Add-in T1566.002 Phishing: Spearphishing Attachment T1059.001 Command and Scripting Interpreter: PowerShell

The PDF document was flagged by a machine learning classifier and contains a link to a known malicious redirector. The embedded URL `http://botcraftman.ru/?lip&keyword=%D1%82%D0%B0%D0%B1%D0%BB%D0%B8%D1%86%D0%B0+%D0%B4%D0%BB%D1%8F+%D1%82%D1%80%D0%B5%D0%BD%D0%B8%D1%80%D0%BE%D0%B2%D0%BA%D0%B8+%D0%B7%D1%80%D0%B5%D0%BD%D0%B8%D1%8F&charset=utf-8` is the primary indicator of malicious intent, likely serving as a lure for further malicious activity. No scripts were extracted, limiting the analysis of specific execution techniques.

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%82%D0%B0%D0%B1%D0%BB%D0%B8%D1%86%D0%B0+%D0%B4%D0%BB%D1%8F+%D1%82%D1%80%D0%B5%D0%BD%D0%B8%D1%80%D0%BE%D0%B2%D0%BA%D0%B8+%D0%B7%D1%80%D0%B5%D0%BD%D0%B8%D1%8F&charset=utf-8
    • http://img0.liveinternet.ru/images/attach/c/7//4732/4732925_otchet__po__preddiplomnoy_.pdf
    • http://img1.liveinternet.ru/images/attach/c/7//4733/4733629_skachat__igru__lego_.pdf
    • http://img1.liveinternet.ru/images/attach/c/7//4733/4733095_skachat__gay__yuliy_.pdf

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off000538e7.bin
1c2bcb0c16708827e50c3602aad9c09fa1b5fa33fd3e850c189ce9ac69cf9df2		 pdf-font-stream PDF embedded font (sfnt) at offset 0x538E7 8336 bytes
font_01_sfnt_off0005512b.bin
aeb9bce02b4d2ca73df13bfaf5a3fe07e8f32504df01f078158e29eb3a53e281		 pdf-font-stream PDF embedded font (sfnt) at offset 0x5512B 16884 bytes

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