Malicious PDF — malware analysis report

Static analysis result for SHA-256 1a0beee411aa7e2d…

MALICIOUS

PDF

184.5 KB Created: 2015-07-23 20:10:02 +03:00 Authoring application: wkhtmltopdf 0.12.2.1 (via Qt 4.8.6)
MD5: b8f4265315018170f5093d83c47e9ad1 SHA-1: a9abb9bffeaca999597d734d3b7b74820d79ca6b SHA-256: 1a0beee411aa7e2dbfdbda539ca52fc246880d60610e2cbb0d295202dbda2b3b
90 Risk Score

Malware Insights

MITRE ATT&CK
T1566.002 Spearphishing Attachment T1059.001 PowerShell

The PDF contains a link to a known malicious redirector, indicating an attempt to lure the user to a harmful site. The ML classifier also flagged this PDF with high confidence. No scripts were extracted, but the presence of the malicious URL is sufficient evidence for this assessment.

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%BB%D0%B0%D0%BD%D0%BA+%D1%82%D1%80%D0%B0%D0%BD%D1%81%D0%BF%D0%BE%D1%80%D1%82%D0%BD%D0%BE%D0%B9+%D0%BD%D0%B0%D0%BA%D0%BB%D0%B0%D0%B4%D0%BD%D0%BE%D0%B9&charset=utf-8
    • http://fastpic.ru/
    • http://www.liveinternet.ru/click
    • http://img0.liveinternet.ru/images/attach/c/5//4184/4184295_skachat_mp_flooder.pdf
    • http://img0.liveinternet.ru/images/attach/c/5//4184/4184405_denis_semenihin_fitnes_gid_po_zhizni_skachat_knigu_besplatno.pdf
    • http://img1.liveinternet.ru/images/attach/c/5//4183/4183192_kusudama_roza_shema.pdf

Extracted artifacts 6

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off000241a4.bin
880e53e6f12106514012eaabb19a261b9f8ae03d695445fc59a5b9b5a1293281		 pdf-font-stream PDF embedded font (sfnt) at offset 0x241A4 3556 bytes
font_01_sfnt_off00024f27.bin
ef58190ed1b0b25bf092a9f6e03bf998b265561382ea56f07041a59ebfe7cc45		 pdf-font-stream PDF embedded font (sfnt) at offset 0x24F27 14240 bytes
font_02_sfnt_off00027bf2.bin
163142455a5560a1f6759d0ead96de5f50a47653c77b96353ea21901cf90e8c4		 pdf-font-stream PDF embedded font (sfnt) at offset 0x27BF2 14468 bytes
font_03_sfnt_off0002a6a6.bin
69b713d4a916822fa4e0d7c117f2d0258933642d39ac9cd4ae7ab3cc7e0ffd36		 pdf-font-stream PDF embedded font (sfnt) at offset 0x2A6A6 6188 bytes
font_04_sfnt_off0002b800.bin
819f9cc5156bfe3dae03045446d677a19b5879270357875344f9514601da73e3		 pdf-font-stream PDF embedded font (sfnt) at offset 0x2B800 6084 bytes
font_05_sfnt_off0002c795.bin
9364d8c42993f0db1eb41a63b15a48dd56cef5056a611ab8e91dd81183a5a95e		 pdf-font-stream PDF embedded font (sfnt) at offset 0x2C795 3752 bytes

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