Malicious PDF — malware analysis report

Static analysis result for SHA-256 0f9a9a8e48bd760c…

MALICIOUS

PDF

187.0 KB Created: 2015-07-25 23:44:55 +03:00 Authoring application: wkhtmltopdf 0.12.2.1 (via Qt 4.8.6)
MD5: 099a6e1880844eb59c1a1eef91a7f68f SHA-1: 48b61231032a97b0040996fa3b3e95826736e247 SHA-256: 0f9a9a8e48bd760c1daa2d9d80acd12d5665e87dac4e6ba6a5e0b73b5aa49fd8
92 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF file was flagged by multiple heuristics as malicious, specifically for containing a link to known malicious redirector infrastructure. The embedded URL, http://botcraftman.ru/..., is highly suspicious and likely serves as a lure to a phishing or malware distribution site. No scripts were extracted, but the presence of the malicious link strongly suggests a social engineering attack.

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%80%D0%B0%D1%81%D0%BA%D1%80%D0%BE%D0%B9+%D0%BB%D0%B8%D1%81%D1%82%D0%BE%D0%B2%D0%BE%D0%B3%D0%BE+%D0%BC%D0%B5%D1%82%D0%B0%D0%BB%D0%BB%D0%B0+%D0%BF%D1%80%D0%BE%D0%B3%D1%80%D0%B0%D0%BC%D0%BC%D0%B0+%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//4200/4200260_skachat_kartu_dlya_maynkraft_152_bolshoy_gorod.pdf
    • http://img1.liveinternet.ru/images/attach/c/5//4193/4193549_programma_stadia_skachat.pdf
    • http://img0.liveinternet.ru/images/attach/c/5//4190/4190894_skachat_programmu_dlya_dos_ataki.pdf
    • http://www.microsoft.com/typography/fonts/
    • http://www.microsoft.com/typography/fonts/You

Extracted artifacts 6

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0002497b.bin
880e53e6f12106514012eaabb19a261b9f8ae03d695445fc59a5b9b5a1293281		 pdf-font-stream PDF embedded font (sfnt) at offset 0x2497B 3556 bytes
font_01_sfnt_off000256fe.bin
f74701645ccca226db95be9b72e98f1bd76be30895a384eddef314f1f4f7a6bd		 pdf-font-stream PDF embedded font (sfnt) at offset 0x256FE 14544 bytes
font_02_sfnt_off000283e3.bin
c33e6903d76079777c1b082a355654bfa5653b97afd40bc3e5344b34556d24bd		 pdf-font-stream PDF embedded font (sfnt) at offset 0x283E3 14468 bytes
font_03_sfnt_off0002ae95.bin
20d751afbed0b210231536a650bd00f2622a8a72765e17e602e1362796751d3b		 pdf-font-stream PDF embedded font (sfnt) at offset 0x2AE95 6852 bytes
font_04_sfnt_off0002c249.bin
819f9cc5156bfe3dae03045446d677a19b5879270357875344f9514601da73e3		 pdf-font-stream PDF embedded font (sfnt) at offset 0x2C249 6084 bytes
font_05_sfnt_off0002d1de.bin
9364d8c42993f0db1eb41a63b15a48dd56cef5056a611ab8e91dd81183a5a95e		 pdf-font-stream PDF embedded font (sfnt) at offset 0x2D1DE 3752 bytes

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