Analysis

  • max time kernel
    140s
  • max time network
    123s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20240802-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20240802-enlocale:en-usos:windows10-2004-x64system
  • submitted
    10-08-2024 04:15

General

  • Target

    2024-08-10_f54edb521d065670f7a183d04740f48f_cryptolocker.exe

  • Size

    30KB

  • MD5

    f54edb521d065670f7a183d04740f48f

  • SHA1

    4448a1991121f94f654d70e4d002e4def828f687

  • SHA256

    23b992c583d1943858e0ee1799796608542f8b91379f7ec463b210965cba619e

  • SHA512

    d6088f79f3bfb38cb80dd0eecd99494c0c3c419c4e90f2cd6ecae9f05b81f27fcde07a856868c24b48e4ffe2c0b4d0c97717dff19eb473f6692f30908ffce480

  • SSDEEP

    384:v0VkMq01bJ3wtEwPS8HLEh+Jagz+3be+26Rsn1rCcOQtOOtEvwDpjqIGRS/Vb9hV:vQz7yVEhs9+js1SQtOOtEvwDpjz9+9W

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).

  • System Location Discovery: System Language Discovery 1 TTPs 2 IoCs

    Attempt gather information about the system language of a victim in order to infer the geographical location of that host.

  • Modifies system certificate store 2 TTPs 8 IoCs
  • Suspicious use of WriteProcessMemory 3 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\2024-08-10_f54edb521d065670f7a183d04740f48f_cryptolocker.exe
    "C:\Users\Admin\AppData\Local\Temp\2024-08-10_f54edb521d065670f7a183d04740f48f_cryptolocker.exe"
    1⤵
    • Checks computer location settings
    • System Location Discovery: System Language Discovery
    • Suspicious use of WriteProcessMemory
    PID:3196
    • C:\Users\Admin\AppData\Local\Temp\misid.exe
      "C:\Users\Admin\AppData\Local\Temp\misid.exe"
      2⤵
      • Checks computer location settings
      • Executes dropped EXE
      • System Location Discovery: System Language Discovery
      • Modifies system certificate store
      PID:2436

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

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Downloads

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

    Filesize

    30KB

    MD5

    01e85897503b254c178a445c97f4bea4

    SHA1

    353e054e74ade939e7902cd30ce31063ba6f66b9

    SHA256

    59958e20cf03a844477dddf84f72d6c3042d310b43686367929662b4c4b51649

    SHA512

    b99a741de53d6190c040b815ed3dbf63f9c7efe59d0c06fb58758e055112d64a807f97f9c34a4f9fa2260126780592392d92a38784df58bcf47cc80743b15ad1

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

    Filesize

    315B

    MD5

    a34ac19f4afae63adc5d2f7bc970c07f

    SHA1

    a82190fc530c265aa40a045c21770d967f4767b8

    SHA256

    d5a89e26beae0bc03ad18a0b0d1d3d75f87c32047879d25da11970cb5c4662a3

    SHA512

    42e53d96e5961e95b7a984d9c9778a1d3bd8ee0c87b8b3b515fa31f67c2d073c8565afc2f4b962c43668c4efa1e478da9bb0ecffa79479c7e880731bc4c55765

  • memory/2436-17-0x0000000000750000-0x0000000000756000-memory.dmp

    Filesize

    24KB

  • memory/2436-23-0x0000000000730000-0x0000000000736000-memory.dmp

    Filesize

    24KB

  • memory/3196-0-0x0000000002190000-0x0000000002196000-memory.dmp

    Filesize

    24KB

  • memory/3196-1-0x0000000002190000-0x0000000002196000-memory.dmp

    Filesize

    24KB

  • memory/3196-2-0x00000000021B0000-0x00000000021B6000-memory.dmp

    Filesize

    24KB