Analysis

  • max time kernel
    95s
  • max time network
    124s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20240802-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20240802-enlocale:en-usos:windows10-2004-x64system
  • submitted
    19/09/2024, 03:22

General

  • Target

    2024-09-19_09f5f3498c69ad7eba7efc43314b3a17_cryptolocker.exe

  • Size

    60KB

  • MD5

    09f5f3498c69ad7eba7efc43314b3a17

  • SHA1

    b07c93c60589a23c5a0051ea5da644d4ee9f610a

  • SHA256

    002f688e4165eb19db1f901e5913cc87b2e09740bd2dcea11dd69812d4026f12

  • SHA512

    dcf0bc9bbe07def1a0235032efbacfaa2c8290c7d7ef9862165cee5db7c48b5e010a56d5a2ff71ddf950b5298da553d93cdbcd3621f89df9922f4fb6c2ff2db2

  • SSDEEP

    768:xQz7yVEhs9+4uR1bytOOtEvwDpjWfbZ7uyA36S7Mz6+b:xj+VGMOtEvwDpjubwQElA

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\2024-09-19_09f5f3498c69ad7eba7efc43314b3a17_cryptolocker.exe
    "C:\Users\Admin\AppData\Local\Temp\2024-09-19_09f5f3498c69ad7eba7efc43314b3a17_cryptolocker.exe"
    1⤵
    • Checks computer location settings
    • System Location Discovery: System Language Discovery
    • Suspicious use of WriteProcessMemory
    PID:4900
    • 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:2904

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

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Downloads

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

    Filesize

    61KB

    MD5

    ec4237a8331fa11d2ec1d2f2bb36f591

    SHA1

    408b9d112df13d1aed7513aa36ee5caab4d51016

    SHA256

    cf0cdac7078be26b7dc889e5268bfae2e280e1d8cd8586cf928e91c7974022b2

    SHA512

    ac964cc34d87d5930f651377af84d0c9bd9274ac3b98c7dd83069dabf98cff4a549f20401bf77d9ee213fbcb2d4173c76887c41a69755f2e05b9f4557ba053fe

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

    Filesize

    315B

    MD5

    a34ac19f4afae63adc5d2f7bc970c07f

    SHA1

    a82190fc530c265aa40a045c21770d967f4767b8

    SHA256

    d5a89e26beae0bc03ad18a0b0d1d3d75f87c32047879d25da11970cb5c4662a3

    SHA512

    42e53d96e5961e95b7a984d9c9778a1d3bd8ee0c87b8b3b515fa31f67c2d073c8565afc2f4b962c43668c4efa1e478da9bb0ecffa79479c7e880731bc4c55765

  • memory/2904-19-0x0000000000520000-0x0000000000526000-memory.dmp

    Filesize

    24KB

  • memory/2904-20-0x00000000006C0000-0x00000000006C6000-memory.dmp

    Filesize

    24KB

  • memory/2904-48-0x0000000000500000-0x0000000000510000-memory.dmp

    Filesize

    64KB

  • memory/4900-0-0x0000000000500000-0x0000000000510000-memory.dmp

    Filesize

    64KB

  • memory/4900-1-0x00000000004D0000-0x00000000004D6000-memory.dmp

    Filesize

    24KB

  • memory/4900-2-0x00000000004D0000-0x00000000004D6000-memory.dmp

    Filesize

    24KB

  • memory/4900-3-0x00000000004F0000-0x00000000004F6000-memory.dmp

    Filesize

    24KB

  • memory/4900-17-0x0000000000500000-0x0000000000510000-memory.dmp

    Filesize

    64KB