Malicious PDF — malware analysis report

Static analysis result for SHA-256 29c38bf0c79ee162…

MALICIOUS

PDF

185.9 KB Created: 2015-08-05 13:46:24 +03:00 Authoring application: wkhtmltopdf 0.12.2.1 (via Qt 4.8.6)
MD5: ee972d77f85c9e677971e40d76656904 SHA-1: aaad5b29d4a9d91a17fefe3f1e5ffe6e492e659a SHA-256: 29c38bf0c79ee162516f388951a08f0b9634eb1afcd160e73fbdb291e470dc7d
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 redirector activity. No scripts were extracted, and the document body was not parsable text, limiting further analysis of the specific lure.

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%BF%D1%80%D0%BE%D0%B3%D1%80%D0%B0%D0%BC%D0%BC%D0%B0+%D0%B4%D0%BB%D1%8F+%D0%BE%D0%B1%D1%80%D0%B0%D0%B1%D0%BE%D1%82%D0%BA%D0%B8+%D0%B2%D0%B8%D0%B4%D0%B5%D0%BE&charset=utf-8
    • http://fastpic.ru/
    • http://www.liveinternet.ru/click
    • http://img0.liveinternet.ru/images/attach/c/6//4304/4304497_skachat_albom_bi2_spirit.pdf
    • http://img0.liveinternet.ru/images/attach/c/6//4304/4304590_memes_mario_skachat_torrent.pdf
    • http://img0.liveinternet.ru/images/attach/c/6//4304/4304498_skachat_igru_chelovek_pauk_the_movie_cherez_torrent.pdf

Extracted artifacts 6

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00024619.bin
880e53e6f12106514012eaabb19a261b9f8ae03d695445fc59a5b9b5a1293281		 pdf-font-stream PDF embedded font (sfnt) at offset 0x24619 3556 bytes
font_01_sfnt_off0002539c.bin
bdad098623a49a07a4b8e652337e8896f1e110bfd87ddb37eaa1e2c79e5cea02		 pdf-font-stream PDF embedded font (sfnt) at offset 0x2539C 14544 bytes
font_02_sfnt_off00028047.bin
dde8cb3db78f49492d397de1013a074ab9c596bc0508faa33f94bd64189db0ac		 pdf-font-stream PDF embedded font (sfnt) at offset 0x28047 14468 bytes
font_03_sfnt_off0002aafa.bin
eebc4c3ca719de14c056231e23e87f75b2bb331f1ee179b092d063053902752f		 pdf-font-stream PDF embedded font (sfnt) at offset 0x2AAFA 6572 bytes
font_04_sfnt_off0002bdb8.bin
819f9cc5156bfe3dae03045446d677a19b5879270357875344f9514601da73e3		 pdf-font-stream PDF embedded font (sfnt) at offset 0x2BDB8 6084 bytes
font_05_sfnt_off0002cd4d.bin
9364d8c42993f0db1eb41a63b15a48dd56cef5056a611ab8e91dd81183a5a95e		 pdf-font-stream PDF embedded font (sfnt) at offset 0x2CD4D 3752 bytes

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