Analysis

  • max time kernel
    148s
  • max time network
    163s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20231215-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20231215-enlocale:en-usos:windows10-2004-x64system
  • submitted
    12-01-2024 05:54

General

  • Target

    2024-01-11_0c90ae004707161f206ef17f163ec641_cryptolocker.exe

  • Size

    39KB

  • MD5

    0c90ae004707161f206ef17f163ec641

  • SHA1

    d0b9b583bde6fefd1d57553e2aa52b3b95124483

  • SHA256

    4ca04a9e34f3b1bf31d91a38ff8928b00ed2382a1060edb878f0becf4b826e2a

  • SHA512

    2f30ae98b6041924cd6a7ecb92f2fd1a728843e470a1afa9ebc5a7bcff4480f1566ce622f2f49c6419ae6a62bb500982673f5ede006d06ca4835e75fbe8d513f

  • SSDEEP

    768:TS5nQJ24LR7tOOtEvwDpjGqPhqlcnvgpnGtg:m5nkFNMOtEvwDpjG8hgpx

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 8 IoCs
  • Suspicious use of WriteProcessMemory 3 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\2024-01-11_0c90ae004707161f206ef17f163ec641_cryptolocker.exe
    "C:\Users\Admin\AppData\Local\Temp\2024-01-11_0c90ae004707161f206ef17f163ec641_cryptolocker.exe"
    1⤵
    • Checks computer location settings
    • Suspicious use of WriteProcessMemory
    PID:4228
    • 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:2028

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

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Downloads

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

    Filesize

    39KB

    MD5

    95f15ef585e1e3e397a23fc87cc73ee1

    SHA1

    37a1230572e90740392a86d0d1f8df2bca4b6146

    SHA256

    6512011a93a9a014c5e1d29354e401227050c5db3c15fca499a68f98035ce2ce

    SHA512

    b7b8af3d1d66efea44468672678b3fda9ce8d2f0338374aeb1dc88a6a733f64eac0c99f31fdaa8f1d8692941a706703defeda83afd92c350a9d0d918f477c314

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

    Filesize

    315B

    MD5

    a34ac19f4afae63adc5d2f7bc970c07f

    SHA1

    a82190fc530c265aa40a045c21770d967f4767b8

    SHA256

    d5a89e26beae0bc03ad18a0b0d1d3d75f87c32047879d25da11970cb5c4662a3

    SHA512

    42e53d96e5961e95b7a984d9c9778a1d3bd8ee0c87b8b3b515fa31f67c2d073c8565afc2f4b962c43668c4efa1e478da9bb0ecffa79479c7e880731bc4c55765

  • memory/2028-19-0x00000000020F0000-0x00000000020F6000-memory.dmp

    Filesize

    24KB

  • memory/2028-20-0x00000000020D0000-0x00000000020D6000-memory.dmp

    Filesize

    24KB

  • memory/2028-48-0x0000000000500000-0x000000000050E000-memory.dmp

    Filesize

    56KB

  • memory/4228-0-0x0000000000500000-0x000000000050E000-memory.dmp

    Filesize

    56KB

  • memory/4228-1-0x0000000000660000-0x0000000000666000-memory.dmp

    Filesize

    24KB

  • memory/4228-2-0x0000000000660000-0x0000000000666000-memory.dmp

    Filesize

    24KB

  • memory/4228-3-0x0000000000790000-0x0000000000796000-memory.dmp

    Filesize

    24KB

  • memory/4228-18-0x0000000000500000-0x000000000050E000-memory.dmp

    Filesize

    56KB