Malicious PDF — malware analysis report

Static analysis result for SHA-256 38e0444ad1955d97…

MALICIOUS

PDF

183.9 KB Created: 2015-08-08 09:50:31 +03:00 Authoring application: wkhtmltopdf 0.12.2.1 (via Qt 4.8.6)
MD5: bb32aca589ea6202794c7c7d838c260a SHA-1: 908d09fb87fc65f7b9f962e2fdfaa75b9da07a6e SHA-256: 38e0444ad1955d97b2c6bfa19434d8196d909227e84ecf56d4593733ef2be0a8
90 Risk Score

Malware Insights

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

The PDF file was flagged by a machine learning classifier and contains a link to a known malicious redirector, http://botcraftman.ru/. This suggests the document is designed to lure users to a malicious website. No scripts were extracted from this sample, limiting further analysis of its behavior.

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=%D1%81%D0%BF%D0%B0%D1%80%D0%BA+%D1%82%D0%BE%D1%80%D1%80%D0%B5%D0%BD%D1%82+%D1%82%D1%80%D0%B5%D0%BA%D0%B5%D1%80&charset=utf-8
    • http://fastpic.ru/
    • http://www.liveinternet.ru/click
    • http://img0.liveinternet.ru/images/attach/c/6//4384/4384450_skachat_golosa_dlya_clownfish.pdf
    • http://img0.liveinternet.ru/images/attach/c/6//4384/4384003_onlayn_igruy_ezda_na_kamaze_s_pricepom.pdf
    • http://img0.liveinternet.ru/images/attach/c/6//4384/4384211_windows_millennium_skachat_torrent.pdf

Extracted artifacts 6

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00023ed8.bin
880e53e6f12106514012eaabb19a261b9f8ae03d695445fc59a5b9b5a1293281		 pdf-font-stream PDF embedded font (sfnt) at offset 0x23ED8 3556 bytes
font_01_sfnt_off00024c5b.bin
9d0b9718e6d58797dd792cafa4a3b47fe21897b37a5771c7e469d92930d2a025		 pdf-font-stream PDF embedded font (sfnt) at offset 0x24C5B 14768 bytes
font_02_sfnt_off00027a75.bin
dde8cb3db78f49492d397de1013a074ab9c596bc0508faa33f94bd64189db0ac		 pdf-font-stream PDF embedded font (sfnt) at offset 0x27A75 14468 bytes
font_03_sfnt_off0002a528.bin
431c5afd6a486127631357fb44ab6a08f751e410893d5f4e94789ebbdf465ef8		 pdf-font-stream PDF embedded font (sfnt) at offset 0x2A528 5944 bytes
font_04_sfnt_off0002b5ab.bin
819f9cc5156bfe3dae03045446d677a19b5879270357875344f9514601da73e3		 pdf-font-stream PDF embedded font (sfnt) at offset 0x2B5AB 6084 bytes
font_05_sfnt_off0002c540.bin
9364d8c42993f0db1eb41a63b15a48dd56cef5056a611ab8e91dd81183a5a95e		 pdf-font-stream PDF embedded font (sfnt) at offset 0x2C540 3752 bytes

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