Malicious PDF — malware analysis report

Static analysis result for SHA-256 df0bef4fe0f3bcad…

MALICIOUS

PDF

185.8 KB Created: 2015-07-24 11:42:36 +03:00 Authoring application: wkhtmltopdf 0.12.2.1 (via Qt 4.8.6)
MD5: b79a0b51e128b380818e47d4e88f9840 SHA-1: 717326649417bb46dbf82407ab01227f71f100b3 SHA-256: df0bef4fe0f3bcad563ff39b1ba23b76e2bb0172672961ae52cb2aadf69ed826
150 Risk Score

Malware Insights

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

The PDF file was flagged by multiple heuristics as malicious, including a critical alert for a link to known malicious redirector infrastructure. The primary malicious indicator is the embedded URL pointing to 'botcraftman.ru', which is classified as a malicious redirector. This suggests the document's purpose is to lure the user to a compromised or malicious site. No scripts were extracted from this sample.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9980

Heuristics 3

  • 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.
  • ClamAV: Pdf.Dropper.Agent-7494979-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Dropper.Agent-7494979-0
  • 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%B2%D0%B7%D0%BB%D0%BE%D0%BC%D0%B0+%D0%BE%D0%B4%D0%BD%D0%BE%D0%BA%D0%BB%D0%B0%D1%81%D1%81%D0%BD%D0%B8%D0%BA%D0%BE%D0%B2+%D0%B1%D0%B5%D1%81%D0%BF%D0%BB%D0%B0%D1%82%D0%BD%D0%BE+%D0%B1%D0%B5%D0%B7+%D1%81%D0%BC%D1%81&charset=utf-8
    • http://fastpic.ru/
    • http://www.liveinternet.ru/click
    • http://img1.liveinternet.ru/images/attach/c/5//4189/4189080_shema_razvitiya_metro_moskvuy_do_2030_goda_karta.pdf
    • http://img0.liveinternet.ru/images/attach/c/5//4188/4188189_skachat_igruy_cherez_torrent_cherepashki_nindzya_2013.pdf
    • http://img0.liveinternet.ru/images/attach/c/5//4190/4190312_shema_sistemuy_ohlazhdeniya_gazel_biznes_4216.pdf

Extracted artifacts 6

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0002458f.bin
880e53e6f12106514012eaabb19a261b9f8ae03d695445fc59a5b9b5a1293281		 pdf-font-stream PDF embedded font (sfnt) at offset 0x2458F 3556 bytes
font_01_sfnt_off00025312.bin
6f527aecb3095f20d9901eaf9713a77357e931ba29eee42e7a8761c2d61d6b53		 pdf-font-stream PDF embedded font (sfnt) at offset 0x25312 13948 bytes
font_02_sfnt_off00027ee1.bin
dde8cb3db78f49492d397de1013a074ab9c596bc0508faa33f94bd64189db0ac		 pdf-font-stream PDF embedded font (sfnt) at offset 0x27EE1 14468 bytes
font_03_sfnt_off0002a994.bin
3f0092b4662e67d7fca7a7e3e8fdeac30e9eccbe611c8aa359d30b4abec30b64		 pdf-font-stream PDF embedded font (sfnt) at offset 0x2A994 6888 bytes
font_04_sfnt_off0002bd70.bin
819f9cc5156bfe3dae03045446d677a19b5879270357875344f9514601da73e3		 pdf-font-stream PDF embedded font (sfnt) at offset 0x2BD70 6084 bytes
font_05_sfnt_off0002cd05.bin
9364d8c42993f0db1eb41a63b15a48dd56cef5056a611ab8e91dd81183a5a95e		 pdf-font-stream PDF embedded font (sfnt) at offset 0x2CD05 3752 bytes

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