Analysis

  • max time kernel
    148s
  • max time network
    153s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20231222-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20231222-enlocale:en-usos:windows10-2004-x64system
  • submitted
    30/12/2023, 12:21

General

  • Target

    1856f199935366cd0a168fafe5938929.exe

  • Size

    51KB

  • MD5

    1856f199935366cd0a168fafe5938929

  • SHA1

    3a94bf987f1521f555b49f2e75a61c7d2a5735ef

  • SHA256

    26131fce17a25f1d11f3e422a9e2d57dfc9181d53d8f553966020f08163fb382

  • SHA512

    c67eeffac8891e7357916261b916b5caf88c72553193b098b1fa1d91c6f4b888943da2356a70f64354cfbc5c02bfed37864095198a5aa1eac9d0688bd82e2c08

  • SSDEEP

    768:Bgk/F9qndDUEOAsCmBR2/G51iNyDDfJLKnbswqIKETqcKO:VTqndNOVBj5cgxenbswqIKQP

Score
7/10

Malware Config

Signatures

  • Executes dropped EXE 2 IoCs
  • Adds Run key to start application 2 TTPs 1 IoCs
  • Suspicious use of SetThreadContext 2 IoCs
  • Drops file in Windows directory 2 IoCs
  • Suspicious use of WriteProcessMemory 17 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\1856f199935366cd0a168fafe5938929.exe
    "C:\Users\Admin\AppData\Local\Temp\1856f199935366cd0a168fafe5938929.exe"
    1⤵
    • Suspicious use of SetThreadContext
    • Suspicious use of WriteProcessMemory
    PID:4912
    • C:\Users\Admin\AppData\Local\Temp\1856f199935366cd0a168fafe5938929.exe
      C:\Users\Admin\AppData\Local\Temp\1856f199935366cd0a168fafe5938929.exe
      2⤵
      • Adds Run key to start application
      • Drops file in Windows directory
      • Suspicious use of WriteProcessMemory
      PID:4520
      • C:\Windows\fxstaller.exe
        "C:\Windows\fxstaller.exe"
        3⤵
        • Executes dropped EXE
        • Suspicious use of SetThreadContext
        • Suspicious use of WriteProcessMemory
        PID:1740
        • C:\Windows\fxstaller.exe
          C:\Windows\fxstaller.exe
          4⤵
          • Executes dropped EXE
          PID:3140

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

Loading Replay Monitor...

Downloads

  • C:\Windows\fxstaller.exe

    Filesize

    51KB

    MD5

    1856f199935366cd0a168fafe5938929

    SHA1

    3a94bf987f1521f555b49f2e75a61c7d2a5735ef

    SHA256

    26131fce17a25f1d11f3e422a9e2d57dfc9181d53d8f553966020f08163fb382

    SHA512

    c67eeffac8891e7357916261b916b5caf88c72553193b098b1fa1d91c6f4b888943da2356a70f64354cfbc5c02bfed37864095198a5aa1eac9d0688bd82e2c08

  • memory/3140-25-0x0000000000400000-0x000000000044C000-memory.dmp

    Filesize

    304KB

  • memory/3140-24-0x0000000000400000-0x000000000044C000-memory.dmp

    Filesize

    304KB

  • memory/3140-30-0x0000000000400000-0x000000000044C000-memory.dmp

    Filesize

    304KB

  • memory/3140-14-0x0000000000400000-0x000000000044C000-memory.dmp

    Filesize

    304KB

  • memory/3140-29-0x0000000000400000-0x000000000044C000-memory.dmp

    Filesize

    304KB

  • memory/3140-16-0x0000000000400000-0x000000000044C000-memory.dmp

    Filesize

    304KB

  • memory/3140-17-0x0000000000400000-0x000000000044C000-memory.dmp

    Filesize

    304KB

  • memory/3140-18-0x0000000000400000-0x000000000044C000-memory.dmp

    Filesize

    304KB

  • memory/3140-20-0x0000000000400000-0x000000000044C000-memory.dmp

    Filesize

    304KB

  • memory/3140-28-0x0000000000400000-0x000000000044C000-memory.dmp

    Filesize

    304KB

  • memory/3140-23-0x0000000000400000-0x000000000044C000-memory.dmp

    Filesize

    304KB

  • memory/3140-22-0x0000000000400000-0x000000000044C000-memory.dmp

    Filesize

    304KB

  • memory/3140-21-0x0000000000400000-0x000000000044C000-memory.dmp

    Filesize

    304KB

  • memory/3140-19-0x0000000000400000-0x000000000044C000-memory.dmp

    Filesize

    304KB

  • memory/3140-27-0x0000000000400000-0x000000000044C000-memory.dmp

    Filesize

    304KB

  • memory/3140-26-0x0000000000400000-0x000000000044C000-memory.dmp

    Filesize

    304KB

  • memory/4520-2-0x0000000000400000-0x000000000044C000-memory.dmp

    Filesize

    304KB

  • memory/4520-0-0x0000000000400000-0x000000000044C000-memory.dmp

    Filesize

    304KB

  • memory/4520-13-0x0000000000400000-0x000000000044C000-memory.dmp

    Filesize

    304KB

  • memory/4520-3-0x0000000000400000-0x000000000044C000-memory.dmp

    Filesize

    304KB