Malicious PDF — malware analysis report

Static analysis result for SHA-256 d03c6bd9a0081e28…

MALICIOUS

PDF

188.5 KB Created: 2015-07-24 01:03:37 +03:00 Authoring application: wkhtmltopdf 0.12.2.1 (via Qt 4.8.6)
MD5: aeabf773b3aebc639d97d5e961dd4c9c SHA-1: 8fd7028f4855586459530633c46371ac08de342d SHA-256: d03c6bd9a0081e28b44723fbde57b215ff187c7066692787d54853c7e9a274ea
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 strongly indicated maliciousness. The embedded URL points to botcraftman.ru, which is identified as a malicious redirector. This suggests the document's primary purpose is to lure the user to a potentially harmful website.

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=%D0%B3%D1%80%D0%B0%D0%BD%D0%B4-%D1%81%D0%BC%D0%B5%D1%82%D0%B0+6+%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+%D1%87%D0%B5%D1%80%D0%B5%D0%B7+%D1%82%D0%BE%D1%80%D1%80%D0%B5%D0%BD%D1%82+%D0%B1%D0%B5%D0%B7+%D1%80%D0%B5%D0%B3%D0%B8%D1%81%D1%82%D1%80%D0%B0%D1%86%D0%B8%D0%B8&charset=utf-8
    • http://fastpic.ru/
    • http://www.liveinternet.ru/click
    • http://img1.liveinternet.ru/images/attach/c/5//4183/4183199_lavrovopesochnya_kaluga_shema_proezda.pdf
    • http://img1.liveinternet.ru/images/attach/c/5//4185/4185173_pozdravlenie_s_nikahom_na_tatarskom_yazuyke.pdf
    • http://img0.liveinternet.ru/images/attach/c/5//4184/4184922_koduy_na_sains_rou_3.pdf

Extracted artifacts 6

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00024ce3.bin
880e53e6f12106514012eaabb19a261b9f8ae03d695445fc59a5b9b5a1293281		 pdf-font-stream PDF embedded font (sfnt) at offset 0x24CE3 3556 bytes
font_01_sfnt_off00025a66.bin
10464b391562e509fbecefbe4d0f9eea32c6e00719f4884eea68c7642b721579		 pdf-font-stream PDF embedded font (sfnt) at offset 0x25A66 14872 bytes
font_02_sfnt_off0002891f.bin
ee6d33b6dbc99bf9eeedd43018673b4eee7a8970ba8633bdde48826eaf834e98		 pdf-font-stream PDF embedded font (sfnt) at offset 0x2891F 14468 bytes
font_03_sfnt_off0002b3d6.bin
638f54533907603ded9e31de8ea3e587a1ba832cdb1c5d9a113e76f415cacbf3		 pdf-font-stream PDF embedded font (sfnt) at offset 0x2B3D6 6992 bytes
font_04_sfnt_off0002c821.bin
819f9cc5156bfe3dae03045446d677a19b5879270357875344f9514601da73e3		 pdf-font-stream PDF embedded font (sfnt) at offset 0x2C821 6084 bytes
font_05_sfnt_off0002d7b6.bin
9364d8c42993f0db1eb41a63b15a48dd56cef5056a611ab8e91dd81183a5a95e		 pdf-font-stream PDF embedded font (sfnt) at offset 0x2D7B6 3752 bytes

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