Malicious PDF — malware analysis report

Static analysis result for SHA-256 fa1408fe5daad76f…

MALICIOUS

PDF

186.1 KB Created: 2015-07-24 19:33:26 +03:00 Authoring application: wkhtmltopdf 0.12.2.1 (via Qt 4.8.6)
MD5: 972291fc55be422884240a72adbbb7bd SHA-1: e2cd908ca7c3bc72545138177518abd220425edb SHA-256: fa1408fe5daad76f3e7ca2b24601ee7a5e09017bcdde58b84c5fbdc29c56afd2
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 strongly indicated maliciousness. The embedded URL points to botcraftman.ru, which is associated with malicious activity. No scripts were extracted, but the presence of a malicious link suggests the document is intended to lure the user to a harmful site.

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=%D0%B4%D0%B5%D1%82%D1%81%D0%BA%D0%B8%D0%B5+%D0%BC%D0%B5%D1%82%D1%80%D0%B8%D0%BA%D0%B8+%D1%81%D1%85%D0%B5%D0%BC%D1%8B+%D0%B2%D1%8B%D1%88%D0%B8%D0%B2%D0%BA%D0%B8+%D0%BA%D1%80%D0%B5%D1%81%D1%82%D0%BE%D0%BC+%D1%81%D0%BA%D0%B0%D1%87%D0%B0%D1%82%D1%8C+%D0%B1%D0%B5%D1%81%D0%BF%D0%BB%D0%B0%D1%82%D0%BD%D0%BE&charset=utf-8
    • http://fastpic.ru/
    • http://www.liveinternet.ru/click
    • http://img0.liveinternet.ru/images/attach/c/5//4188/4188709_vruchenie_attestatov_v_9_klasse_scenariy.pdf
    • http://img0.liveinternet.ru/images/attach/c/5//4184/4184513_skachat_cherez_torrent_windows_xp_2015.pdf
    • http://img1.liveinternet.ru/images/attach/c/5//4193/4193751_temuy_montazha_dlya_pinnacle_studio_14_skachat_besplatno.pdf

Extracted artifacts 6

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0002453f.bin
880e53e6f12106514012eaabb19a261b9f8ae03d695445fc59a5b9b5a1293281		 pdf-font-stream PDF embedded font (sfnt) at offset 0x2453F 3556 bytes
font_01_sfnt_off000252c2.bin
5c9a4ecda1d3674b0b365b2baae3f9b9b5940475e1070dda627d054b9f40b36b		 pdf-font-stream PDF embedded font (sfnt) at offset 0x252C2 14464 bytes
font_02_sfnt_off00027f82.bin
6b4fe88cc06c6695e814bda583852903ca01c71ccd34a42f1030d6e16d0f4c10		 pdf-font-stream PDF embedded font (sfnt) at offset 0x27F82 14588 bytes
font_03_sfnt_off0002aa94.bin
5e560f59254749295612d16a92a1540b1ea7a39e39b6b0d47ba8813033199570		 pdf-font-stream PDF embedded font (sfnt) at offset 0x2AA94 6948 bytes
font_04_sfnt_off0002be9d.bin
819f9cc5156bfe3dae03045446d677a19b5879270357875344f9514601da73e3		 pdf-font-stream PDF embedded font (sfnt) at offset 0x2BE9D 6084 bytes
font_05_sfnt_off0002ce32.bin
9364d8c42993f0db1eb41a63b15a48dd56cef5056a611ab8e91dd81183a5a95e		 pdf-font-stream PDF embedded font (sfnt) at offset 0x2CE32 3752 bytes

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