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Analysis

  • max time kernel
    148s
  • 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
    05/09/2024, 12:10

General

  • Target

    2024-09-05_874918b99f2e6f0ba31c3207c6c64b47_cryptolocker.exe

  • Size

    86KB

  • MD5

    874918b99f2e6f0ba31c3207c6c64b47

  • SHA1

    dfdc417a06af6b1044f850c6c7e497e0d061c83d

  • SHA256

    0fc8a01e4127dc8f6953d920c501f31698a367fd0c6c02ea7ef0f0e465ad97ce

  • SHA512

    c09c2080e6a24674ca370109824b0a47c0f33be620fa121980b5f5ba8bd115ecfb575bef41e2f56558f05fc387e0678d2f124e0ef96535506b50bfe3bcac4f0f

  • SSDEEP

    1536:Tj+jsMQMOtEvwDpj5HmpJpOUHECgNMo0vp2EMMrC+Zn:TCjsIOtEvwDpj5HE/OUHnSMv

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\2024-09-05_874918b99f2e6f0ba31c3207c6c64b47_cryptolocker.exe
    "C:\Users\Admin\AppData\Local\Temp\2024-09-05_874918b99f2e6f0ba31c3207c6c64b47_cryptolocker.exe"
    1⤵
    • Checks computer location settings
    • System Location Discovery: System Language Discovery
    • Suspicious use of WriteProcessMemory
    PID:3280
    • 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:2588

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

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Downloads

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

    Filesize

    86KB

    MD5

    70d2501014602de3dce383b3fa91b252

    SHA1

    b10ba3f474be4e57d8c56a0e0d3144801d168abd

    SHA256

    9dfcd4052a603ac0aee6acd4bb568e311ed4867642410e9a5653d28b82ec5e5f

    SHA512

    93e86659110af4a34eab8572397a47c188cebd8bd0fe5a2b7ddde80d15d41785d6aeabcb9b800b929e24994b249d07ad2ecce2add786ecbf2d1fcd9f5e18dd2b

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

    Filesize

    315B

    MD5

    a34ac19f4afae63adc5d2f7bc970c07f

    SHA1

    a82190fc530c265aa40a045c21770d967f4767b8

    SHA256

    d5a89e26beae0bc03ad18a0b0d1d3d75f87c32047879d25da11970cb5c4662a3

    SHA512

    42e53d96e5961e95b7a984d9c9778a1d3bd8ee0c87b8b3b515fa31f67c2d073c8565afc2f4b962c43668c4efa1e478da9bb0ecffa79479c7e880731bc4c55765

  • memory/2588-17-0x0000000000500000-0x000000000050E000-memory.dmp

    Filesize

    56KB

  • memory/2588-20-0x00000000004D0000-0x00000000004D6000-memory.dmp

    Filesize

    24KB

  • memory/2588-21-0x00000000004F0000-0x00000000004F6000-memory.dmp

    Filesize

    24KB

  • memory/2588-49-0x0000000000500000-0x000000000050E000-memory.dmp

    Filesize

    56KB

  • memory/3280-0-0x0000000000500000-0x000000000050E000-memory.dmp

    Filesize

    56KB

  • memory/3280-1-0x0000000002190000-0x0000000002196000-memory.dmp

    Filesize

    24KB

  • memory/3280-2-0x0000000002190000-0x0000000002196000-memory.dmp

    Filesize

    24KB

  • memory/3280-3-0x00000000021B0000-0x00000000021B6000-memory.dmp

    Filesize

    24KB

  • memory/3280-19-0x0000000000500000-0x000000000050E000-memory.dmp

    Filesize

    56KB