Analysis

  • max time kernel
    112s
  • max time network
    144s
  • platform
    windows7_x64
  • resource
    win7v20201028
  • submitted
    24-12-2020 11:17

General

  • Target

    be1f6aa3d2c2d61721aa96d8530a65387591252248de520ffed4bfdde0368dde.bin.sample.exe

  • Size

    425KB

  • MD5

    c486aedae4bb88c1bd5064f12df7e188

  • SHA1

    9880e8a0655cf1d0dad855703b85e1bb9bd4db82

  • SHA256

    be1f6aa3d2c2d61721aa96d8530a65387591252248de520ffed4bfdde0368dde

  • SHA512

    fbcccfbc92782740ad542038b2ae3b0d6926d87deeaed6f25dbcf1db4bc00a36af1fe8e74a642fd6a40ee625199b210fad119afbc2a5b7c87c96f603343b2f16

Score
8/10

Malware Config

Signatures

  • Modifies extensions of user files 10 IoCs

    Ransomware generally changes the extension on encrypted files.

  • Reads user/profile data of web browsers 2 TTPs

    Infostealers often target stored browser data, which can include saved credentials etc.

  • Drops desktop.ini file(s) 35 IoCs
  • Enumerates connected drives 3 TTPs 23 IoCs

    Attempts to read the root path of hard drives other than the default C: drive.

  • Modifies Internet Explorer settings 1 TTPs 37 IoCs
  • Suspicious behavior: EnumeratesProcesses 1 IoCs
  • Suspicious use of AdjustPrivilegeToken 3 IoCs
  • Suspicious use of FindShellTrayWindow 1 IoCs
  • Suspicious use of SetWindowsHookEx 16 IoCs
  • Suspicious use of WriteProcessMemory 8 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\be1f6aa3d2c2d61721aa96d8530a65387591252248de520ffed4bfdde0368dde.bin.sample.exe
    "C:\Users\Admin\AppData\Local\Temp\be1f6aa3d2c2d61721aa96d8530a65387591252248de520ffed4bfdde0368dde.bin.sample.exe"
    1⤵
    • Modifies extensions of user files
    • Drops desktop.ini file(s)
    • Enumerates connected drives
    PID:1068
  • C:\Windows\system32\vssvc.exe
    C:\Windows\system32\vssvc.exe
    1⤵
    • Suspicious use of AdjustPrivilegeToken
    PID:744
  • C:\Program Files\Internet Explorer\iexplore.exe
    "C:\Program Files\Internet Explorer\iexplore.exe" C:\Users\Admin\Desktop\YOUR_FILES_ARE_ENCRYPTED.HTML
    1⤵
    • Modifies Internet Explorer settings
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of FindShellTrayWindow
    • Suspicious use of SetWindowsHookEx
    • Suspicious use of WriteProcessMemory
    PID:1900
    • C:\Program Files (x86)\Internet Explorer\IEXPLORE.EXE
      "C:\Program Files (x86)\Internet Explorer\IEXPLORE.EXE" SCODEF:1900 CREDAT:275457 /prefetch:2
      2⤵
      • Modifies Internet Explorer settings
      • Suspicious use of SetWindowsHookEx
      PID:204
    • C:\Program Files (x86)\Internet Explorer\IEXPLORE.EXE
      "C:\Program Files (x86)\Internet Explorer\IEXPLORE.EXE" SCODEF:1900 CREDAT:275466 /prefetch:2
      2⤵
      • Modifies Internet Explorer settings
      • Suspicious use of SetWindowsHookEx
      PID:1760

Network

MITRE ATT&CK Enterprise v6

Replay Monitor

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Downloads

  • memory/1732-2-0x000007FEF7E60000-0x000007FEF80DA000-memory.dmp

    Filesize

    2.5MB