Malicious PDF — malware analysis report

Static analysis result for SHA-256 b74288c8d4b4c489…

MALICIOUS

PDF

183.6 KB Created: 2015-07-23 20:07:17 +03:00 Authoring application: wkhtmltopdf 0.12.2.1 (via Qt 4.8.6)
MD5: acdfeaa650cb147bf905d317274c054b SHA-1: e395bbc2071b48cd7702e59dda6da6cb0684cfc6 SHA-256: b74288c8d4b4c4891e9e35b4ffa4f232749dbe98d644777fbd7d700847f15ee4
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 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%9D%D0%BE%D0%B2%D0%B0%D1%8F+%D1%84%D0%BE%D1%80%D0%BC%D0%B0+%D0%BC%D1%87%D1%81+%D0%B4%D0%BB%D1%8F+%D1%84%D0%BE%D1%82%D0%BE%D1%88%D0%BE%D0%BF%D0%B0&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://img0.liveinternet.ru/images/attach/c/5//4184/4184285_igruy_na_russkih_mashinah_skachat_torrent.pdf
    • http://img0.liveinternet.ru/images/attach/c/5//4184/4184401_vfeed_dlya_android.pdf

Extracted artifacts 6

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00023d15.bin
880e53e6f12106514012eaabb19a261b9f8ae03d695445fc59a5b9b5a1293281		 pdf-font-stream PDF embedded font (sfnt) at offset 0x23D15 3556 bytes
font_01_sfnt_off00024a98.bin
96303f08ef6b2aab2dbacd2cd67be235c6ce7520aeb53577334889756b8be679		 pdf-font-stream PDF embedded font (sfnt) at offset 0x24A98 14184 bytes
font_02_sfnt_off00027742.bin
a3719aab4ed4c1d266a8d8b3542e156133e013430199cbe471a0c690948d7bca		 pdf-font-stream PDF embedded font (sfnt) at offset 0x27742 14520 bytes
font_03_sfnt_off0002a214.bin
e3bab169a81390bf5523ea052dbaae3439400549f962666c05992eed4188c806		 pdf-font-stream PDF embedded font (sfnt) at offset 0x2A214 6532 bytes
font_04_sfnt_off0002b4b8.bin
819f9cc5156bfe3dae03045446d677a19b5879270357875344f9514601da73e3		 pdf-font-stream PDF embedded font (sfnt) at offset 0x2B4B8 6084 bytes
font_05_sfnt_off0002c44d.bin
9364d8c42993f0db1eb41a63b15a48dd56cef5056a611ab8e91dd81183a5a95e		 pdf-font-stream PDF embedded font (sfnt) at offset 0x2C44D 3752 bytes

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