Analysis

  • max time kernel
    96s
  • max time network
    150s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20240802-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20240802-enlocale:en-usos:windows10-2004-x64system
  • submitted
    09/09/2024, 04:25

General

  • Target

    2024-09-09_4ac7546f41222eb849f7c64b8e1a946a_cryptolocker.exe

  • Size

    56KB

  • MD5

    4ac7546f41222eb849f7c64b8e1a946a

  • SHA1

    1e16b1358886ebc81505d1a0ab164962ad0a86df

  • SHA256

    213e068030fb5be5a8bacf1ed9ddf78e57baaecc44693564d217f82b47f56879

  • SHA512

    591ecfd07bd26a31b73735da5f840b94732e49f9577a32fe0e7e21f3052e03127565ee0a92dda99c49b3cf3ac20fdd99f2b8f0e23185b1d47000425e0a559a0f

  • SSDEEP

    768:lQz7yVEhs9+4uR1bytOOtEvwDpjWfbP/bmp:lj+VGMOtEvwDpjubXbmp

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\2024-09-09_4ac7546f41222eb849f7c64b8e1a946a_cryptolocker.exe
    "C:\Users\Admin\AppData\Local\Temp\2024-09-09_4ac7546f41222eb849f7c64b8e1a946a_cryptolocker.exe"
    1⤵
    • Checks computer location settings
    • System Location Discovery: System Language Discovery
    • Suspicious use of WriteProcessMemory
    PID:3780
    • 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:4500

Network

        MITRE ATT&CK Enterprise v15

        Replay Monitor

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        Downloads

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

          Filesize

          56KB

          MD5

          b0e37863108f0415280371fd49171602

          SHA1

          cc8a6ab9b6f18037ac17e186ffbe929eec27cde9

          SHA256

          a7326de12ad5795df5927dff1e4f60d60bb6b4f5115b457bfab88873e6533f33

          SHA512

          2472262f6d52b4fb9c5e68b7c747412e7a2533095d2319aea1bf0575cebceef52d57c1e4ece688a432b9b1361e8e958d446f6285b2f086bad1333ab7da011a3e

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

          Filesize

          315B

          MD5

          a34ac19f4afae63adc5d2f7bc970c07f

          SHA1

          a82190fc530c265aa40a045c21770d967f4767b8

          SHA256

          d5a89e26beae0bc03ad18a0b0d1d3d75f87c32047879d25da11970cb5c4662a3

          SHA512

          42e53d96e5961e95b7a984d9c9778a1d3bd8ee0c87b8b3b515fa31f67c2d073c8565afc2f4b962c43668c4efa1e478da9bb0ecffa79479c7e880731bc4c55765

        • memory/3780-0-0x0000000000500000-0x0000000000510000-memory.dmp

          Filesize

          64KB

        • memory/3780-1-0x00000000007F0000-0x00000000007F6000-memory.dmp

          Filesize

          24KB

        • memory/3780-2-0x00000000007F0000-0x00000000007F6000-memory.dmp

          Filesize

          24KB

        • memory/3780-3-0x00000000021B0000-0x00000000021B6000-memory.dmp

          Filesize

          24KB

        • memory/3780-17-0x0000000000500000-0x0000000000510000-memory.dmp

          Filesize

          64KB

        • memory/4500-19-0x0000000000560000-0x0000000000566000-memory.dmp

          Filesize

          24KB

        • memory/4500-20-0x00000000005D0000-0x00000000005D6000-memory.dmp

          Filesize

          24KB

        • memory/4500-48-0x0000000000500000-0x0000000000510000-memory.dmp

          Filesize

          64KB