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Analysis

  • max time kernel
    93s
  • max time network
    124s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20240709-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20240709-enlocale:en-usos:windows10-2004-x64system
  • submitted
    10/07/2024, 06:23

General

  • Target

    2024-07-10_11976b7f388e086fb580a5a3b987724e_cryptolocker.exe

  • Size

    50KB

  • MD5

    11976b7f388e086fb580a5a3b987724e

  • SHA1

    73ccf58172698f1125a1c417fba769e5c802a772

  • SHA256

    833413f0d0cc30c811f5c3122727df39ff419dfd4ee28a0ebca88a304e315186

  • SHA512

    6a3c80aea3d2e7b359f0671b43e0e9afaf2a4e9a046fdabb0df163f0602ddd6493ad79248caf372c00599243fc294f8b861c4156098a3f2fe4f3bc48ad63120f

  • SSDEEP

    768:vQz7yVEhs9+js1SQtOOtEvwDpjz9+4/Uth8igNrr42A7n0FmB0nn:vj+jsMQMOtEvwDpj5HczerLO04B0

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\2024-07-10_11976b7f388e086fb580a5a3b987724e_cryptolocker.exe
    "C:\Users\Admin\AppData\Local\Temp\2024-07-10_11976b7f388e086fb580a5a3b987724e_cryptolocker.exe"
    1⤵
    • Checks computer location settings
    • Suspicious use of WriteProcessMemory
    PID:4644
    • 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:3292

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

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Downloads

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

    Filesize

    50KB

    MD5

    3f3c1c340c938e0ad77f25ee4ce3a270

    SHA1

    a9b60e388f64d20323dccea4ef04feab78294362

    SHA256

    8196f59404585ba3b273e0e8e10882f9c3b0c18115e86b73019a9cffe0f5abba

    SHA512

    25c0c27ac5d952a41f780f1e9796b46a5e3993cf5cd7d2f5fafe44774c8e75af232d71590206ea619d3085b8efcdaa8241cdf6ba67c979e134968ab21ed17406

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

    Filesize

    315B

    MD5

    a34ac19f4afae63adc5d2f7bc970c07f

    SHA1

    a82190fc530c265aa40a045c21770d967f4767b8

    SHA256

    d5a89e26beae0bc03ad18a0b0d1d3d75f87c32047879d25da11970cb5c4662a3

    SHA512

    42e53d96e5961e95b7a984d9c9778a1d3bd8ee0c87b8b3b515fa31f67c2d073c8565afc2f4b962c43668c4efa1e478da9bb0ecffa79479c7e880731bc4c55765

  • memory/3292-17-0x0000000000510000-0x0000000000516000-memory.dmp

    Filesize

    24KB

  • memory/3292-23-0x00000000004E0000-0x00000000004E6000-memory.dmp

    Filesize

    24KB

  • memory/4644-0-0x00000000004D0000-0x00000000004D6000-memory.dmp

    Filesize

    24KB

  • memory/4644-1-0x00000000004D0000-0x00000000004D6000-memory.dmp

    Filesize

    24KB

  • memory/4644-2-0x00000000004F0000-0x00000000004F6000-memory.dmp

    Filesize

    24KB