Malicious PDF — malware analysis report

Static analysis result for SHA-256 544e184da1a1219d…

MALICIOUS

PDF

352.5 KB Created: 2015-08-28 11:47:30 +03:00 Authoring application: wkhtmltopdf 0.12.2.4 (via Qt 4.8.6)
MD5: dc1e46d6f73efc4eef071d151787a90e SHA-1: 749395c06c33cb32730434288182c5b2999611ac SHA-256: 544e184da1a1219d46056478e1e31d5a61b31039a9b1802686ddd85dafaadd77
90 Risk Score

Malware Insights

MITRE ATT&CK
T1059.001 PowerShell

The PDF file was flagged by a machine learning classifier and contains a link to a known malicious redirector. This indicates the document is likely part of a phishing or malware distribution campaign. No scripts were extracted, and the document body was unreadable, limiting further analysis of the specific lure.

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%81%D0%BA%D0%B0%D1%87%D0%B0%D1%82%D1%8C+%D0%BF%D1%80%D0%BE%D0%B3%D1%80%D0%B0%D0%BC%D0%BC%D1%83+%D0%B4%D0%BB%D1%8F+%D0%B7%D0%B0%D0%BF%D0%B8%D1%81%D0%B8+%D0%BC%D1%83%D0%B7%D1%8B%D0%BA%D0%B8&charset=utf-8
    • http://img0.liveinternet.ru/images/attach/c/7//4802/4802685_spravochnik_.pdf
    • http://img0.liveinternet.ru/images/attach/c/7//4802/4802403_raspisanie__avtobusa_.pdf
    • http://img0.liveinternet.ru/images/attach/c/7//4802/4802429_counter__strike__xtreme_.pdf

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00053e4a.bin
e9f4612436caff877863a92b72553476db225ff36a59022ef52daf7f7cf585c1		 pdf-font-stream PDF embedded font (sfnt) at offset 0x53E4A 8064 bytes
font_01_sfnt_off000555a3.bin
41897317ead74f3cd9c48e95b5a0335262777c47f9f46c7454283ada37dfd936		 pdf-font-stream PDF embedded font (sfnt) at offset 0x555A3 14800 bytes

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