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Analysis

  • max time kernel
    94s
  • max time network
    127s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20240802-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20240802-enlocale:en-usos:windows10-2004-x64system
  • submitted
    11/09/2024, 04:17

General

  • Target

    2024-09-11_d7af8da8898dd9f51aa28a53fe46408d_cryptolocker.exe

  • Size

    72KB

  • MD5

    d7af8da8898dd9f51aa28a53fe46408d

  • SHA1

    838f85726c2bb1f94cf671e1447b2c3dca232700

  • SHA256

    6230f81782efabaa04c19841b8a7069ad55491d9ff292edd22d4a722e536d236

  • SHA512

    da756e0ad088f51a981b7daa337d946d44f3f359c27a4338eb63f6d796d9e2dfed7c45196be7d7fb6aa56197711ca4b8c51e1bd43ee80411c04cafcd84d804bc

  • SSDEEP

    768:vQz7yVEhs9+js1SQtOOtEvwDpjz9+4ZPsED3VK2+ZtyOjgO4r9vFAg2rq2g1B/RY:vj+jsMQMOtEvwDpj5HZYTjipvF24A

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\2024-09-11_d7af8da8898dd9f51aa28a53fe46408d_cryptolocker.exe
    "C:\Users\Admin\AppData\Local\Temp\2024-09-11_d7af8da8898dd9f51aa28a53fe46408d_cryptolocker.exe"
    1⤵
    • Checks computer location settings
    • System Location Discovery: System Language Discovery
    • Suspicious use of WriteProcessMemory
    PID:3208
    • 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:3772

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

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Downloads

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

    Filesize

    72KB

    MD5

    c9d3e93f3c00a5c2f1afd77cbc297408

    SHA1

    f72539a1e4ca842f5bcb745f1d286022904e7d84

    SHA256

    a5d160a9d4fe4e25a3e0c44aec68f7df61bd4ede9bf00fe2b1146c7a53c5a8e4

    SHA512

    3c2b747502b1150fe733bfbbf98e8ec8117929133169a5c536865efc9fa85d6d91d89abdc8e85d000b6abbf710b58bed1e2e2bbadd49f7a7e7012a2b15504f96

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

    Filesize

    315B

    MD5

    a34ac19f4afae63adc5d2f7bc970c07f

    SHA1

    a82190fc530c265aa40a045c21770d967f4767b8

    SHA256

    d5a89e26beae0bc03ad18a0b0d1d3d75f87c32047879d25da11970cb5c4662a3

    SHA512

    42e53d96e5961e95b7a984d9c9778a1d3bd8ee0c87b8b3b515fa31f67c2d073c8565afc2f4b962c43668c4efa1e478da9bb0ecffa79479c7e880731bc4c55765

  • memory/3208-0-0x00000000004F0000-0x00000000004F6000-memory.dmp

    Filesize

    24KB

  • memory/3208-1-0x00000000004F0000-0x00000000004F6000-memory.dmp

    Filesize

    24KB

  • memory/3208-2-0x0000000000520000-0x0000000000526000-memory.dmp

    Filesize

    24KB

  • memory/3772-17-0x00000000006A0000-0x00000000006A6000-memory.dmp

    Filesize

    24KB

  • memory/3772-18-0x00000000006C0000-0x00000000006C6000-memory.dmp

    Filesize

    24KB