Analysis

  • max time kernel
    88s
  • max time network
    198s
  • platform
    windows7_x64
  • resource
    win7-20221111-en
  • resource tags

    arch:x64arch:x86image:win7-20221111-enlocale:en-usos:windows7-x64system
  • submitted
    01-12-2022 10:01

General

  • Target

    b9dcc2125c9ff070d38ab81aabc14e810b1bcba2af720bc61c1e699132c5f9b2.exe

  • Size

    124KB

  • MD5

    4088174fc3056b657c40b539aac50b40

  • SHA1

    adb084a42da4df3f31f0a227e87742d51d5de6f2

  • SHA256

    b9dcc2125c9ff070d38ab81aabc14e810b1bcba2af720bc61c1e699132c5f9b2

  • SHA512

    e5a9c8ac74dc3f456c51fa3117db57bf743eb6c9be899bb6f2ae6651d13f3114535a33e487d8374f83828acd9b5951b11d2c9df466b3290c9a24d7c68cf02017

  • SSDEEP

    1536:OIfhGVitNdn6cOBQP6LAlUnhnLrirdb8+gXygMRV2zH3XgyCPq2KQPXgyFWaajV5:OIfhGUtNdn2ULg8V2zXKv9GsIF/lg30

Score
7/10

Malware Config

Signatures

  • Drops startup file 1 IoCs
  • Adds Run key to start application 2 TTPs 2 IoCs
  • Drops file in System32 directory 5 IoCs
  • Drops file in Program Files directory 2 IoCs
  • Drops file in Windows directory 2 IoCs
  • Enumerates physical storage devices 1 TTPs

    Attempts to interact with connected storage/optical drive(s). Likely ransomware behaviour.

  • Modifies Internet Explorer settings 1 TTPs 42 IoCs
  • Modifies system certificate store 2 TTPs 2 IoCs
  • Runs .reg file with regedit 1 IoCs
  • Suspicious behavior: EnumeratesProcesses 3 IoCs
  • Suspicious use of FindShellTrayWindow 1 IoCs
  • Suspicious use of SendNotifyMessage 1 IoCs
  • Suspicious use of SetWindowsHookEx 6 IoCs
  • Suspicious use of WriteProcessMemory 8 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\b9dcc2125c9ff070d38ab81aabc14e810b1bcba2af720bc61c1e699132c5f9b2.exe
    "C:\Users\Admin\AppData\Local\Temp\b9dcc2125c9ff070d38ab81aabc14e810b1bcba2af720bc61c1e699132c5f9b2.exe"
    1⤵
    • Drops startup file
    • Drops file in System32 directory
    • Drops file in Program Files directory
    • Drops file in Windows directory
    • Modifies Internet Explorer settings
    • Modifies system certificate store
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of FindShellTrayWindow
    • Suspicious use of SendNotifyMessage
    • Suspicious use of SetWindowsHookEx
    • Suspicious use of WriteProcessMemory
    PID:1536
    • C:\Users\Admin\AppData\Local\Temp\b9dcc2125c9ff070d38ab81aabc14e810b1bcba2af720bc61c1e699132c5f9b2.exe
      C:\Users\Admin\AppData\Local\Temp\b9dcc2125c9ff070d38ab81aabc14e810b1bcba2af720bc61c1e699132c5f9b2.exe
      2⤵
      • Suspicious use of SetWindowsHookEx
      PID:1348
    • C:\Windows\SysWOW64\regedit.exe
      regedit /s C:\1.reg
      2⤵
      • Adds Run key to start application
      • Runs .reg file with regedit
      PID:640

Network

MITRE ATT&CK Enterprise v6

Replay Monitor

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Downloads

  • C:\1.reg

    Filesize

    171B

    MD5

    e93f7fbfa70015b3994f59d0410ebf6b

    SHA1

    433795d08ab6aabbd0cb3e883b01f2b38489c962

    SHA256

    162c7d5178d8fde39c3f5dccb566d8b7a1a126e98a9181221c55a93f6d75f43c

    SHA512

    7d4a0bb3ecb8c497687bfa3498843242ce1643e8ed010da0a6801a4de08d8e9d35854ccfea496d867737a1b1fb51c32b46447bd46f6481265cc125003620a476

  • memory/640-61-0x0000000000000000-mapping.dmp

  • memory/1348-57-0x0000000000000000-mapping.dmp

  • memory/1536-56-0x0000000075C31000-0x0000000075C33000-memory.dmp

    Filesize

    8KB