Malicious PDF — malware analysis report

Static analysis result for SHA-256 b07c97abc3158a96…

MALICIOUS

PDF

187.8 KB Created: 2015-07-24 23:51:35 +03:00 Authoring application: wkhtmltopdf 0.12.2.1 (via Qt 4.8.6)
MD5: ef823407f04a20e97e6ac62a3a12bfde SHA-1: 6ca374b911ffd5bb068fe94c6a7c2118515e36c0 SHA-256: b07c97abc3158a96645e5116b3a841333b80b30fe80fb5a24189ffdb14e3cacb
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 primary malicious URL identified is http://botcraftman.ru/. While no scripts were extracted, the presence of this malicious link strongly suggests the document's purpose is to redirect the user to a harmful site, likely for phishing or malware delivery. The ML classifier also provided a high confidence score for maliciousness.

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%B8%D0%B3%D1%80%D1%83+%D0%BF%D0%B4%D0%B4+2015+%D0%BD%D0%B0+%D0%BA%D0%BE%D0%BC%D0%BF%D1%8C%D1%8E%D1%82%D0%B5%D1%80+%D0%B1%D0%B5%D1%81%D0%BF%D0%BB%D0%B0%D1%82%D0%BD%D0%BE+%D0%B8+%D0%B1%D0%B5%D0%B7+%D1%80%D0%B5%D0%B3%D0%B8%D1%81%D1%82%D1%80%D0%B0%D1%86%D0%B8%D0%B8&charset=utf-8
    • http://fastpic.ru/
    • http://www.liveinternet.ru/click
    • http://img0.liveinternet.ru/images/attach/c/5//4192/4192180_skachat_gta_5_na_xbox_360_cherez_torrent.pdf
    • http://img0.liveinternet.ru/images/attach/c/5//4192/4192503_naruto_mugen_2013_skachat_torrent.pdf
    • http://img1.liveinternet.ru/images/attach/c/5//4191/4191717_proekt_kotelnoy_skachat.pdf

Extracted artifacts 6

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0002499c.bin
880e53e6f12106514012eaabb19a261b9f8ae03d695445fc59a5b9b5a1293281		 pdf-font-stream PDF embedded font (sfnt) at offset 0x2499C 3556 bytes
font_01_sfnt_off0002571f.bin
8e21fe2daa7fd8098684562c2e3a5bc30e6f6341bc90b9458aba1f8251b1b323		 pdf-font-stream PDF embedded font (sfnt) at offset 0x2571F 14536 bytes
font_02_sfnt_off0002844a.bin
79af632a95218cf711f16924213f54bd42c78d491b8fd5e686df37d9c1ef2fd2		 pdf-font-stream PDF embedded font (sfnt) at offset 0x2844A 14640 bytes
font_03_sfnt_off0002af83.bin
6ed5daf915b68689dc39786b5733bcbeeb2118ba086e8da408df5a13fc5e2a85		 pdf-font-stream PDF embedded font (sfnt) at offset 0x2AF83 7416 bytes
font_04_sfnt_off0002c565.bin
819f9cc5156bfe3dae03045446d677a19b5879270357875344f9514601da73e3		 pdf-font-stream PDF embedded font (sfnt) at offset 0x2C565 6084 bytes
font_05_sfnt_off0002d4fa.bin
9364d8c42993f0db1eb41a63b15a48dd56cef5056a611ab8e91dd81183a5a95e		 pdf-font-stream PDF embedded font (sfnt) at offset 0x2D4FA 3752 bytes

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