Malicious PDF — malware analysis report

Static analysis result for SHA-256 18dbfc7f3fb85680…

MALICIOUS

PDF

371.4 KB Created: 2015-08-29 02:05:38 +03:00 Authoring application: wkhtmltopdf 0.12.2.4 (via Qt 4.8.6)
MD5: 194a638364b9b7f0a4806fa0a1c100e2 SHA-1: 1c9abf789f9a630a050d213cb41a7758be37fb92 SHA-256: 18dbfc7f3fb8568013b5338083de6ee37b4f6030364156fe011dd52bb3781ab8
92 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF document was flagged by a machine learning classifier and contains a link to a known malicious redirector. This suggests the document is part of a phishing or malware distribution campaign. While no scripts were explicitly extracted, the presence of a malicious URL indicates an attempt to redirect the user to a harmful site.

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=%D1%80%D1%83%D1%81%D1%81%D0%BA%D0%B8%D0%B9+%D1%8F%D0%B7%D1%8B%D0%BA+9+%D0%BA%D0%BB%D0%B0%D1%81%D1%81+%D1%80%D0%B5%D1%88%D0%B5%D0%B1%D0%BD%D0%B8%D0%BA+%D0%BC%D1%83%D1%80%D0%B8%D0%BD%D0%B0&charset=utf-8
    • http://img0.liveinternet.ru/images/attach/c/7//4818/4818240_skachat__minecraft__152_.pdf
    • http://img1.liveinternet.ru/images/attach/c/7//4817/4817454_pesni__shanson__skachat_.pdf
    • http://img0.liveinternet.ru/images/attach/c/7//4818/4818010_shablonuy__dlya__prezentaciy_.pdf

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00058385.bin
9f57be376ea8050d224b4c5dff4bd23fadb562883d0574283bbc3c99e62fb79b		 pdf-font-stream PDF embedded font (sfnt) at offset 0x58385 9560 bytes
font_01_sfnt_off00059e03.bin
b1133d35c4aa699b44dec9d139c7077eb140730aacd857f9252cb00e71187f76		 pdf-font-stream PDF embedded font (sfnt) at offset 0x59E03 15732 bytes

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