Malicious PDF — malware analysis report

Static analysis result for SHA-256 ee03fedac848a8eb…

MALICIOUS

PDF

186.0 KB Created: 2015-07-25 02:43:19 +03:00 Authoring application: wkhtmltopdf 0.12.2.1 (via Qt 4.8.6)
MD5: d42829e7b2f67f4468ebc9eb89bb6eda SHA-1: cc5f3da7afa2a21df99ab6bc5e6bfbaf49106cad SHA-256: ee03fedac848a8eb9d851d321ddf91c72dd3a7957ba617425062cbf259ba26cf
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 assigned a high probability of maliciousness. The embedded URL points to botcraftman.ru, which is associated with malicious redirects. No scripts were extracted, but the presence of the malicious link strongly suggests a phishing or malware delivery attempt.

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%B7%D0%B0%D0%B3%D1%80%D1%83%D0%B7%D0%BA%D0%B0+%D0%B8%D0%B7+excel+%D0%B2+1%D1%81+82+%D1%83%D0%BF%D1%80%D0%B0%D0%B2%D0%BB%D1%8F%D0%B5%D0%BC%D0%BE%D0%B5+%D0%BF%D1%80%D0%B8%D0%BB%D0%BE%D0%B6%D0%B5%D0%BD%D0%B8%D0%B5&charset=utf-8
    • http://fastpic.ru/
    • http://www.liveinternet.ru/click
    • http://img0.liveinternet.ru/images/attach/c/5//4192/4192021_farming_simulator_2015_skachat_torrent_russkaya_versiya.pdf
    • http://img1.liveinternet.ru/images/attach/c/5//4191/4191594_prednaznachenie_buyt_zhenschinoy_skachat_besplatno_fb2.pdf
    • http://img0.liveinternet.ru/images/attach/c/5//4190/4190864_programma_dlya_raskladki_laminata.pdf

Extracted artifacts 6

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00024116.bin
880e53e6f12106514012eaabb19a261b9f8ae03d695445fc59a5b9b5a1293281		 pdf-font-stream PDF embedded font (sfnt) at offset 0x24116 3556 bytes
font_01_sfnt_off00024e99.bin
cb37c5581998fda4dac81f64aa4c79575b02d0785ff75c546a69a2b76c758eef		 pdf-font-stream PDF embedded font (sfnt) at offset 0x24E99 14680 bytes
font_02_sfnt_off00027c5f.bin
e5c0e87a41aff7dd086da10a105f2c214fe98dbbb265fbd95fd65601e606e96e		 pdf-font-stream PDF embedded font (sfnt) at offset 0x27C5F 14788 bytes
font_03_sfnt_off0002a802.bin
a9b78c834218c4f04c370791e26d1409e7ec49e91dd24b033f6fc65c7f3ffb4a		 pdf-font-stream PDF embedded font (sfnt) at offset 0x2A802 7572 bytes
font_04_sfnt_off0002be54.bin
819f9cc5156bfe3dae03045446d677a19b5879270357875344f9514601da73e3		 pdf-font-stream PDF embedded font (sfnt) at offset 0x2BE54 6084 bytes
font_05_sfnt_off0002cde9.bin
9364d8c42993f0db1eb41a63b15a48dd56cef5056a611ab8e91dd81183a5a95e		 pdf-font-stream PDF embedded font (sfnt) at offset 0x2CDE9 3752 bytes

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