Analysis

  • max time kernel
    93s
  • max time network
    140s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20241007-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20241007-enlocale:en-usos:windows10-2004-x64system
  • submitted
    20/11/2024, 03:37

General

  • Target

    2024-11-20_d61b96ecae1b8558a3019dacd90b9b85_cryptolocker.exe

  • Size

    74KB

  • MD5

    d61b96ecae1b8558a3019dacd90b9b85

  • SHA1

    55c733963540a7b2dec4a147ad7c46fa1e0c88a4

  • SHA256

    3908844df0f93b5ba0b5228b138247128406fc336635f1ca5098169c43cd10e5

  • SHA512

    99119f51d71daeeffae4da82db52256a39757b22d5b3d7319be071e11d5ebb31fee8ffdae35fc1201f915f36e1b45363df5cf3897c06fb5102fc1513b49610e0

  • SSDEEP

    768:9UQz7yVEhs9+4T/1bytOOtEvwDpjLXOQ69zbjlAAX5e9zu:9Uj+AIMOtEvwDpjLizbR9Xwzu

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\2024-11-20_d61b96ecae1b8558a3019dacd90b9b85_cryptolocker.exe
    "C:\Users\Admin\AppData\Local\Temp\2024-11-20_d61b96ecae1b8558a3019dacd90b9b85_cryptolocker.exe"
    1⤵
    • Checks computer location settings
    • System Location Discovery: System Language Discovery
    • Suspicious use of WriteProcessMemory
    PID:4896
    • 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:2184

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

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Downloads

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

    Filesize

    75KB

    MD5

    af78c38b03b753eee82436a22ae70a55

    SHA1

    29e71dc5fa8a2dca29f46bff4eeaf0c98194dfec

    SHA256

    4123cd4eb919e3781f068072ef71bf86f900954a10a2c33a9c082fe6f52fd1e9

    SHA512

    e04376896f25565b113aaf50c396a1883f113890b29ab4fd06f28de0a375db46440e3e6e04293c30fece9d2b2fc2578063b016c341b12370c43a0e2e23afbe4c

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

    Filesize

    315B

    MD5

    a34ac19f4afae63adc5d2f7bc970c07f

    SHA1

    a82190fc530c265aa40a045c21770d967f4767b8

    SHA256

    d5a89e26beae0bc03ad18a0b0d1d3d75f87c32047879d25da11970cb5c4662a3

    SHA512

    42e53d96e5961e95b7a984d9c9778a1d3bd8ee0c87b8b3b515fa31f67c2d073c8565afc2f4b962c43668c4efa1e478da9bb0ecffa79479c7e880731bc4c55765

  • memory/2184-23-0x00000000004C0000-0x00000000004C6000-memory.dmp

    Filesize

    24KB

  • memory/2184-17-0x0000000000590000-0x0000000000596000-memory.dmp

    Filesize

    24KB

  • memory/4896-0-0x00000000007F0000-0x00000000007F6000-memory.dmp

    Filesize

    24KB

  • memory/4896-1-0x00000000007F0000-0x00000000007F6000-memory.dmp

    Filesize

    24KB

  • memory/4896-2-0x00000000021B0000-0x00000000021B6000-memory.dmp

    Filesize

    24KB