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Analysis

  • max time kernel
    151s
  • max time network
    175s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20220812-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20220812-enlocale:en-usos:windows10-2004-x64system
  • submitted
    26/11/2022, 02:19

General

  • Target

    788d766f3022381940d71264cb235e771b3eeacdd6cccc5b541b1dfadc6023de.exe

  • Size

    176KB

  • MD5

    3b5e197a2875bcb66533294db4141a56

  • SHA1

    c818ebf323af988b21b5e8771543096317dd7f94

  • SHA256

    788d766f3022381940d71264cb235e771b3eeacdd6cccc5b541b1dfadc6023de

  • SHA512

    b1f55efd0ff2501bfd7131df50012b1cd8ca204f2dd6cf416f2760416934181b30691ea5ce80e48f45de57423bc4a297f3a2b9e0803a5e9bae14ae141d9fb9a5

  • SSDEEP

    3072:zEkPZgwZP3sQoYuf8pgcQWKg8vD3HGxK0roILGXq26xhxLGdV6wF/9snGa45o9sF:zzP3sQFuf8pgcQWKg8vD3HGxK0roSGXh

Score
8/10

Malware Config

Signatures

  • Executes dropped EXE 2 IoCs
  • Checks computer location settings 2 TTPs 1 IoCs

    Looks up country code configured in the registry, likely geofence.

  • Adds Run key to start application 2 TTPs 2 IoCs
  • Enumerates connected drives 3 TTPs 22 IoCs

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

  • Suspicious use of SetThreadContext 2 IoCs
  • Enumerates physical storage devices 1 TTPs

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

  • Modifies registry class 1 IoCs
  • Suspicious use of SetWindowsHookEx 2 IoCs
  • Suspicious use of WriteProcessMemory 29 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\788d766f3022381940d71264cb235e771b3eeacdd6cccc5b541b1dfadc6023de.exe
    "C:\Users\Admin\AppData\Local\Temp\788d766f3022381940d71264cb235e771b3eeacdd6cccc5b541b1dfadc6023de.exe"
    1⤵
    • Suspicious use of SetThreadContext
    • Suspicious use of SetWindowsHookEx
    • Suspicious use of WriteProcessMemory
    PID:1084
    • C:\Users\Admin\AppData\Local\Temp\788d766f3022381940d71264cb235e771b3eeacdd6cccc5b541b1dfadc6023de.exe
      2⤵
      • Checks computer location settings
      • Adds Run key to start application
      • Modifies registry class
      • Suspicious use of WriteProcessMemory
      PID:4844
      • C:\Users\Admin\AppData\Roaming\Microsoft\svchost.exe
        "C:\Users\Admin\AppData\Roaming\Microsoft\svchost.exe"
        3⤵
        • Executes dropped EXE
        • Suspicious use of SetThreadContext
        • Suspicious use of SetWindowsHookEx
        • Suspicious use of WriteProcessMemory
        PID:4500
        • C:\Users\Admin\AppData\Roaming\Microsoft\svchost.exe
          4⤵
          • Executes dropped EXE
          • Enumerates connected drives
          PID:1952

Network

MITRE ATT&CK Enterprise v6

Replay Monitor

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Downloads

  • C:\Users\Admin\AppData\Roaming\Microsoft\svchost.exe

    Filesize

    176KB

    MD5

    3b5e197a2875bcb66533294db4141a56

    SHA1

    c818ebf323af988b21b5e8771543096317dd7f94

    SHA256

    788d766f3022381940d71264cb235e771b3eeacdd6cccc5b541b1dfadc6023de

    SHA512

    b1f55efd0ff2501bfd7131df50012b1cd8ca204f2dd6cf416f2760416934181b30691ea5ce80e48f45de57423bc4a297f3a2b9e0803a5e9bae14ae141d9fb9a5

  • C:\Users\Admin\AppData\Roaming\Microsoft\svchost.exe

    Filesize

    176KB

    MD5

    3b5e197a2875bcb66533294db4141a56

    SHA1

    c818ebf323af988b21b5e8771543096317dd7f94

    SHA256

    788d766f3022381940d71264cb235e771b3eeacdd6cccc5b541b1dfadc6023de

    SHA512

    b1f55efd0ff2501bfd7131df50012b1cd8ca204f2dd6cf416f2760416934181b30691ea5ce80e48f45de57423bc4a297f3a2b9e0803a5e9bae14ae141d9fb9a5

  • C:\Users\Admin\AppData\Roaming\Microsoft\svchost.exe

    Filesize

    176KB

    MD5

    3b5e197a2875bcb66533294db4141a56

    SHA1

    c818ebf323af988b21b5e8771543096317dd7f94

    SHA256

    788d766f3022381940d71264cb235e771b3eeacdd6cccc5b541b1dfadc6023de

    SHA512

    b1f55efd0ff2501bfd7131df50012b1cd8ca204f2dd6cf416f2760416934181b30691ea5ce80e48f45de57423bc4a297f3a2b9e0803a5e9bae14ae141d9fb9a5

  • memory/1952-148-0x0000000000400000-0x0000000000427000-memory.dmp

    Filesize

    156KB

  • memory/1952-149-0x0000000000400000-0x0000000000427000-memory.dmp

    Filesize

    156KB

  • memory/1952-150-0x0000000000400000-0x0000000000427000-memory.dmp

    Filesize

    156KB

  • memory/4844-137-0x0000000000400000-0x0000000000427000-memory.dmp

    Filesize

    156KB

  • memory/4844-138-0x0000000000400000-0x0000000000427000-memory.dmp

    Filesize

    156KB

  • memory/4844-136-0x0000000000400000-0x0000000000427000-memory.dmp

    Filesize

    156KB

  • memory/4844-135-0x0000000000400000-0x0000000000427000-memory.dmp

    Filesize

    156KB