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Analysis

  • max time kernel
    135s
  • 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
    26/08/2024, 06:42

General

  • Target

    2024-08-26_58feb25b7e7ed656d87aef79c2b0d4c8_cryptolocker.exe

  • Size

    46KB

  • MD5

    58feb25b7e7ed656d87aef79c2b0d4c8

  • SHA1

    dbff6245b5bafcace1ae33d324407288e8a4e81c

  • SHA256

    d79d940fe7db6d5c80496d80fb4855397d51785089834c66a329bba7bf699a82

  • SHA512

    8bc4cd8bc9784bbcc33850297bd1cc3a1f02bf3f8ccda65a1dd3d0dbb66c43c0e63dc7cb8176824346e15676a8d32d589691d0949a7cc891ad802e35db91ecc4

  • SSDEEP

    384:icX+ni9VCr5nQI021q4VQBqURYp055TOtOOtEvwDpjqIGR/hHi7/OlIGe/1w:XS5nQJ24LR1bytOOtEvwDpjNbme/e

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\2024-08-26_58feb25b7e7ed656d87aef79c2b0d4c8_cryptolocker.exe
    "C:\Users\Admin\AppData\Local\Temp\2024-08-26_58feb25b7e7ed656d87aef79c2b0d4c8_cryptolocker.exe"
    1⤵
    • Checks computer location settings
    • System Location Discovery: System Language Discovery
    • Suspicious use of WriteProcessMemory
    PID:4256
    • 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:3132

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

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Downloads

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

    Filesize

    46KB

    MD5

    d9db8ca76d53b227202f889c665df3d2

    SHA1

    84443b90d7b9a57f951cf99b77d645b5e15685c5

    SHA256

    ddb1aeb5dff3b1bb7e8f490cd160b28ad30bf4fb44fffa85e664770d5c8a8c03

    SHA512

    a36070f651c3fe456c56bc0cdaa5bafff6ee3d0d4db9199880befffccab63269740c27ca3f7bc060c8841cc148a81baf1ae8c1e0690d597eee46b1c4d9de572e

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

    Filesize

    315B

    MD5

    a34ac19f4afae63adc5d2f7bc970c07f

    SHA1

    a82190fc530c265aa40a045c21770d967f4767b8

    SHA256

    d5a89e26beae0bc03ad18a0b0d1d3d75f87c32047879d25da11970cb5c4662a3

    SHA512

    42e53d96e5961e95b7a984d9c9778a1d3bd8ee0c87b8b3b515fa31f67c2d073c8565afc2f4b962c43668c4efa1e478da9bb0ecffa79479c7e880731bc4c55765

  • memory/3132-26-0x00000000004D0000-0x00000000004D6000-memory.dmp

    Filesize

    24KB

  • memory/3132-20-0x0000000000660000-0x0000000000666000-memory.dmp

    Filesize

    24KB

  • memory/3132-50-0x0000000000500000-0x000000000050F000-memory.dmp

    Filesize

    60KB

  • memory/4256-0-0x0000000000500000-0x000000000050F000-memory.dmp

    Filesize

    60KB

  • memory/4256-1-0x00000000006A0000-0x00000000006A6000-memory.dmp

    Filesize

    24KB

  • memory/4256-2-0x00000000006A0000-0x00000000006A6000-memory.dmp

    Filesize

    24KB

  • memory/4256-3-0x0000000002070000-0x0000000002076000-memory.dmp

    Filesize

    24KB

  • memory/4256-18-0x0000000000500000-0x000000000050F000-memory.dmp

    Filesize

    60KB