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Analysis

  • max time kernel
    151s
  • max time network
    186s
  • 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, 06:02

General

  • Target

    2024-01-11_96cd5d54244eb29ccd47b1ab03ae9c0c_cryptolocker.exe

  • Size

    121KB

  • MD5

    96cd5d54244eb29ccd47b1ab03ae9c0c

  • SHA1

    3b48d537185e71eb36e11224dca0ebd2cc1d9805

  • SHA256

    31b593732687fa1a462dc1dfb5d493720955e105ce885e5c23837871d0276bcc

  • SHA512

    ea2647125559e7ae0e2247eb9b6c2ec172f2640e7c4b342301cb7794350000f49d0f158ffd90839934afaeb562685843e75285548eeda0e314cedbd851b23fbf

  • SSDEEP

    1536:gUj+AIMOtEvwDpjNbwQEIPlemUhYwkkxE8:vCA9OtEvwDpj0

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 6 IoCs
  • Suspicious use of WriteProcessMemory 3 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\2024-01-11_96cd5d54244eb29ccd47b1ab03ae9c0c_cryptolocker.exe
    "C:\Users\Admin\AppData\Local\Temp\2024-01-11_96cd5d54244eb29ccd47b1ab03ae9c0c_cryptolocker.exe"
    1⤵
    • Checks computer location settings
    • Suspicious use of WriteProcessMemory
    PID:1404
    • 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:4312

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

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Downloads

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

    Filesize

    121KB

    MD5

    0e768499c1a2c247e26054cd18b32f51

    SHA1

    6b9411b1a982c941483dbc32761e502fc4ebdc6a

    SHA256

    2f2307afe883c29936e88e1a73b4a1af0d8defacd5fec49dcc0c66d78ce4eb80

    SHA512

    7892d636258dbcfe95c8c3d192499a21dded59150f6bb524805dfb2cff2d9186690553f5cb65c2f799a25237849395fd341cc1caf16137d355c31b5a40521061

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

    Filesize

    315B

    MD5

    a34ac19f4afae63adc5d2f7bc970c07f

    SHA1

    a82190fc530c265aa40a045c21770d967f4767b8

    SHA256

    d5a89e26beae0bc03ad18a0b0d1d3d75f87c32047879d25da11970cb5c4662a3

    SHA512

    42e53d96e5961e95b7a984d9c9778a1d3bd8ee0c87b8b3b515fa31f67c2d073c8565afc2f4b962c43668c4efa1e478da9bb0ecffa79479c7e880731bc4c55765

  • memory/1404-0-0x0000000000520000-0x0000000000526000-memory.dmp

    Filesize

    24KB

  • memory/1404-1-0x0000000000520000-0x0000000000526000-memory.dmp

    Filesize

    24KB

  • memory/1404-2-0x0000000000540000-0x0000000000546000-memory.dmp

    Filesize

    24KB

  • memory/4312-18-0x0000000000660000-0x0000000000666000-memory.dmp

    Filesize

    24KB

  • memory/4312-17-0x00000000020F0000-0x00000000020F6000-memory.dmp

    Filesize

    24KB