Analysis

  • max time kernel
    87s
  • max time network
    148s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20231222-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20231222-enlocale:en-usos:windows10-2004-x64system
  • submitted
    12-02-2024 03:29

General

  • Target

    b4d4ee630e395894f9152690e4bc5a5e.exe

  • Size

    74KB

  • MD5

    b4d4ee630e395894f9152690e4bc5a5e

  • SHA1

    7bef5972fca29c0e46bc8e5c2817d505d991baf1

  • SHA256

    c662ba3ffd93bfe34b0a09d6d71ce26e6a1de5f200b0041b12c8af564efe6b82

  • SHA512

    cf54984320a463770240a3b57320ea96a014210e49837b183c5fd976b9ae34a2911602dd808165cba2df3b4e008a38a03919b4f5311b321e34f3276a272fcc26

  • SSDEEP

    1536:ZzFbxmLPWQMOtEvwDpj386Sj/WprgJN6tZdOyJ3Ku3V:ZVxkGOtEvwDpjcah

Score
7/10

Malware Config

Signatures

  • Checks computer location settings 2 TTPs 2 IoCs

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

  • Executes dropped EXE 1 IoCs
  • Enumerates physical storage devices 1 TTPs

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

  • Modifies system certificate store 2 TTPs 5 IoCs
  • Suspicious use of WriteProcessMemory 3 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\b4d4ee630e395894f9152690e4bc5a5e.exe
    "C:\Users\Admin\AppData\Local\Temp\b4d4ee630e395894f9152690e4bc5a5e.exe"
    1⤵
    • Checks computer location settings
    • Suspicious use of WriteProcessMemory
    PID:1648
    • C:\Users\Admin\AppData\Local\Temp\misid.exe
      "C:\Users\Admin\AppData\Local\Temp\misid.exe"
      2⤵
      • Checks computer location settings
      • Executes dropped EXE
      • Modifies system certificate store
      PID:4240

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

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Downloads

  • C:\Users\Admin\AppData\Local\Temp\misid.exe

    Filesize

    74KB

    MD5

    2e326d1923561c70435110507cef0426

    SHA1

    5283a7630e766b86fc10da59d4dadf2a3c93c25f

    SHA256

    4811df5901bbe89c4c202c20bebf5b0c6f9f3a03744e71d71073d20cb93084e8

    SHA512

    7ec58b48ac66ae7c81c7894c42e21fda4e4b9505270655ec499268cec8bae8f79e9dd08bd3fefbeae30385a296240e512d5bc504983959a8a269b2ca580ca548

  • C:\Users\Admin\AppData\Local\Temp\misids.exe

    Filesize

    315B

    MD5

    a34ac19f4afae63adc5d2f7bc970c07f

    SHA1

    a82190fc530c265aa40a045c21770d967f4767b8

    SHA256

    d5a89e26beae0bc03ad18a0b0d1d3d75f87c32047879d25da11970cb5c4662a3

    SHA512

    42e53d96e5961e95b7a984d9c9778a1d3bd8ee0c87b8b3b515fa31f67c2d073c8565afc2f4b962c43668c4efa1e478da9bb0ecffa79479c7e880731bc4c55765

  • memory/1648-0-0x00000000006A0000-0x00000000006A6000-memory.dmp

    Filesize

    24KB

  • memory/1648-1-0x00000000006A0000-0x00000000006A6000-memory.dmp

    Filesize

    24KB

  • memory/1648-2-0x0000000002240000-0x0000000002246000-memory.dmp

    Filesize

    24KB

  • memory/4240-18-0x0000000000750000-0x0000000000756000-memory.dmp

    Filesize

    24KB

  • memory/4240-24-0x0000000000620000-0x0000000000626000-memory.dmp

    Filesize

    24KB

  • memory/4240-16-0x00000000006A0000-0x00000000006A6000-memory.dmp

    Filesize

    24KB