Malicious PDF — malware analysis report

Static analysis result for SHA-256 e2cd315d91a79d0a…

MALICIOUS

PDF

185.7 KB Created: 2015-08-08 10:53:17 +03:00 Authoring application: wkhtmltopdf 0.12.2.1 (via Qt 4.8.6)
MD5: 22875e417d64a97c5d2f104f68ee4a15 SHA-1: 9b7787504ef37360188b6a1eafa7179869be615e SHA-256: e2cd315d91a79d0a730454df332ed11029ed67249cb3357aeabea8e725c8a2c6
92 Risk Score

Malware Insights

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

The PDF file was flagged by multiple heuristics as malicious, specifically for containing a link to a known malicious redirector. The ML classifier also assigned a high probability of maliciousness. The embedded URL points to botcraftman.ru, which is identified as a malicious redirector. This suggests the document's primary purpose is to redirect users to a harmful destination.

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%9A%D1%80%D0%B0%D1%81%D0%B8%D0%B2%D1%8B%D0%B5+%D0%B4%D0%B5%D0%B2%D1%83%D1%88%D0%BA%D0%B8+%D1%84%D0%BE%D1%82%D0%BE+%D0%B1%D1%80%D1%8E%D0%BD%D0%B5%D1%82%D0%BA%D0%B8+%D1%81+%D1%87%D0%B5%D0%BB%D0%BA%D0%BE%D0%B9&charset=utf-8
    • http://fastpic.ru/
    • http://www.liveinternet.ru/click
    • http://img1.liveinternet.ru/images/attach/c/6//4383/4383785_skachat_igru_luntik_uchitsya_risovat_torrent.pdf
    • http://img0.liveinternet.ru/images/attach/c/6//4386/4386311_rasskaz_pro_druga_na_tatarskom_yazuyke.pdf
    • http://img0.liveinternet.ru/images/attach/c/6//4384/4384939_skachat_besplatno_moduy_dlya_world_of_tanks_0_8_7_ot_dzhova.pdf

Extracted artifacts 6

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00024139.bin
880e53e6f12106514012eaabb19a261b9f8ae03d695445fc59a5b9b5a1293281		 pdf-font-stream PDF embedded font (sfnt) at offset 0x24139 3556 bytes
font_01_sfnt_off00024ebc.bin
d53815e917ca28ce102689a0745d7980ff7a233bc535ff0cd9fbaa313c4e9a57		 pdf-font-stream PDF embedded font (sfnt) at offset 0x24EBC 14804 bytes
font_02_sfnt_off00027cf8.bin
3a79dd916ada34b8d5bbd5c68f840c184139786892dec66a5ab640a5dbb86ea9		 pdf-font-stream PDF embedded font (sfnt) at offset 0x27CF8 14520 bytes
font_03_sfnt_off0002a7c8.bin
a246948d3d5d2ca88674f9c42f940a798f6f872b50f891556f93bec20c5d1b93		 pdf-font-stream PDF embedded font (sfnt) at offset 0x2A7C8 7244 bytes
font_04_sfnt_off0002bcd1.bin
819f9cc5156bfe3dae03045446d677a19b5879270357875344f9514601da73e3		 pdf-font-stream PDF embedded font (sfnt) at offset 0x2BCD1 6084 bytes
font_05_sfnt_off0002cc66.bin
9364d8c42993f0db1eb41a63b15a48dd56cef5056a611ab8e91dd81183a5a95e		 pdf-font-stream PDF embedded font (sfnt) at offset 0x2CC66 3752 bytes

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