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Analysis

  • max time kernel
    148s
  • max time network
    150s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20240709-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20240709-enlocale:en-usos:windows10-2004-x64system
  • submitted
    26/07/2024, 21:49

General

  • Target

    2024-07-26_426d10dd34e9e94f7f75a301bfa0726a_cryptolocker.exe

  • Size

    51KB

  • MD5

    426d10dd34e9e94f7f75a301bfa0726a

  • SHA1

    e90117c829113e89d4bbec3c3cda912503413d3c

  • SHA256

    c58c6c541f9a63b8adcf6e711b9a8c1010e18f79c5b0684924cff5aa4c94f7d7

  • SHA512

    c07a04852f92f7f975f01ebfb3793388a64a5e2f4a0bccaf34344b7662b3833dad193d09599d57d11efb7c5cc17fff3c4e82e4126a78e3c8335c757781e48ce1

  • SSDEEP

    768:vQz7yVEhs9+js1SQtOOtEvwDpjz9+4/Uth8igNrr42A7n0FmB0ndd:vj+jsMQMOtEvwDpj5HczerLO04Bad

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\2024-07-26_426d10dd34e9e94f7f75a301bfa0726a_cryptolocker.exe
    "C:\Users\Admin\AppData\Local\Temp\2024-07-26_426d10dd34e9e94f7f75a301bfa0726a_cryptolocker.exe"
    1⤵
    • Checks computer location settings
    • System Location Discovery: System Language Discovery
    • Suspicious use of WriteProcessMemory
    PID:2988
    • 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:1080

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

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Downloads

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

    Filesize

    51KB

    MD5

    cc75ad46daad8fc155fac89fc420cc5e

    SHA1

    763a8effc6fb747feaacddea1ad8180df7128d27

    SHA256

    a03a971e82e030f5a47c07a5d6fd23d3833da943769af51ca5476e7c1d825d9c

    SHA512

    63a0a260d9c0487681e5bd767d72ed3dbd9f66a670923c988d95576b8c608715fd0f7d399c3bb415b7a8ffde9e9af747842e8fe58f0c73fd8c566c75782093be

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

    Filesize

    315B

    MD5

    a34ac19f4afae63adc5d2f7bc970c07f

    SHA1

    a82190fc530c265aa40a045c21770d967f4767b8

    SHA256

    d5a89e26beae0bc03ad18a0b0d1d3d75f87c32047879d25da11970cb5c4662a3

    SHA512

    42e53d96e5961e95b7a984d9c9778a1d3bd8ee0c87b8b3b515fa31f67c2d073c8565afc2f4b962c43668c4efa1e478da9bb0ecffa79479c7e880731bc4c55765

  • memory/1080-23-0x00000000004D0000-0x00000000004D6000-memory.dmp

    Filesize

    24KB

  • memory/1080-17-0x00000000004F0000-0x00000000004F6000-memory.dmp

    Filesize

    24KB

  • memory/2988-0-0x0000000000520000-0x0000000000526000-memory.dmp

    Filesize

    24KB

  • memory/2988-1-0x0000000000520000-0x0000000000526000-memory.dmp

    Filesize

    24KB

  • memory/2988-2-0x0000000002240000-0x0000000002246000-memory.dmp

    Filesize

    24KB