Malicious PDF — malware analysis report

Static analysis result for SHA-256 7eef3e13c7999f20…

MALICIOUS

PDF

185.1 KB Created: 2015-08-09 18:10:53 +03:00 Authoring application: wkhtmltopdf 0.12.2.1 (via Qt 4.8.6)
MD5: 303e13858b54bcd53e5100a436649fb8 SHA-1: 1a9a3e84675f7728546ada0fb4a41f6e79608183 SHA-256: 7eef3e13c7999f201ba45fd015ba5d7414e32836a9550fbcc5d269584b116073
92 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF file was flagged by a machine learning classifier and contains a direct link to a known malicious redirector. This suggests the document is designed to lead the user to a malicious site, likely for phishing or malware distribution. No scripts were extracted, but the presence of a malicious URL is a strong indicator of malicious intent.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9982

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%B1%D0%B0%D0%B3%D0%B8+%D0%BA+%D0%B8%D0%B3%D1%80%D0%B0%D0%BC+%D0%B2%D0%BA%D0%BE%D0%BD%D1%82%D0%B0%D0%BA%D1%82%D0%B5&charset=utf-8
    • http://fastpic.ru/
    • http://www.liveinternet.ru/click
    • http://img1.liveinternet.ru/images/attach/c/6//4383/4383694_windows_8_korporativnaya_aktivaciya.pdf
    • http://img0.liveinternet.ru/images/attach/c/6//4416/4416430_mechi_i_sandali_2_chituy_skachat.pdf
    • http://img0.liveinternet.ru/images/attach/c/6//4386/4386427_counterstrike_16_portable_skachat.pdf
    • http://www.microsoft.com/typography/fonts/
    • http://www.microsoft.com/typography/fonts/You

Extracted artifacts 6

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00024344.bin
880e53e6f12106514012eaabb19a261b9f8ae03d695445fc59a5b9b5a1293281		 pdf-font-stream PDF embedded font (sfnt) at offset 0x24344 3556 bytes
font_01_sfnt_off000250c7.bin
5afa4e6ebeec2b52470d329da2d6eaaa9b1be1e0115beeee3a3bf3751948d638		 pdf-font-stream PDF embedded font (sfnt) at offset 0x250C7 14704 bytes
font_02_sfnt_off00027e65.bin
163142455a5560a1f6759d0ead96de5f50a47653c77b96353ea21901cf90e8c4		 pdf-font-stream PDF embedded font (sfnt) at offset 0x27E65 14468 bytes
font_03_sfnt_off0002a919.bin
a956270bc524935e23ceede5dc9f3a14c13883c7e78c877feb08f5ecb0473bda		 pdf-font-stream PDF embedded font (sfnt) at offset 0x2A919 6232 bytes
font_04_sfnt_off0002ba9b.bin
819f9cc5156bfe3dae03045446d677a19b5879270357875344f9514601da73e3		 pdf-font-stream PDF embedded font (sfnt) at offset 0x2BA9B 6084 bytes
font_05_sfnt_off0002ca30.bin
9364d8c42993f0db1eb41a63b15a48dd56cef5056a611ab8e91dd81183a5a95e		 pdf-font-stream PDF embedded font (sfnt) at offset 0x2CA30 3752 bytes

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