Analysis

  • max time kernel
    141s
  • max time network
    151s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20230703-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20230703-enlocale:en-usos:windows10-2004-x64system
  • submitted
    29/08/2023, 18:01

General

  • Target

    d668bc8a6377ce71f5b3c4e981f907a6_cryptolocker_JC.exe

  • Size

    88KB

  • MD5

    d668bc8a6377ce71f5b3c4e981f907a6

  • SHA1

    876631b43c29d1a51a48fab7408a050372230ce2

  • SHA256

    2a1502598bc6e3baf030a4601c989460faa1884974e8fe6c7eb7e6a52f5349a5

  • SHA512

    945367de102c9b2a14f8b125ba60f91eee3e3c71f617f8f47c497f9a9af149a8172d6423b42e6864eca1bdcf35de1c0b8978fff6346095dc242b5bd1249b52c0

  • SSDEEP

    768:xQz7yVEhs9+4uR1bytOOtEvwDpjWfbZ7uyA36S7MpxRiWNa9mM:xj+VGMOtEvwDpjubwQEIiVmM

Score
7/10

Malware Config

Signatures

  • 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\d668bc8a6377ce71f5b3c4e981f907a6_cryptolocker_JC.exe
    "C:\Users\Admin\AppData\Local\Temp\d668bc8a6377ce71f5b3c4e981f907a6_cryptolocker_JC.exe"
    1⤵
    • Suspicious use of WriteProcessMemory
    PID:2276
    • C:\Users\Admin\AppData\Local\Temp\misid.exe
      "C:\Users\Admin\AppData\Local\Temp\misid.exe"
      2⤵
      • Executes dropped EXE
      • Modifies system certificate store
      PID:4028

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

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Downloads

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

    Filesize

    89KB

    MD5

    f27e7337dae7da2b4683f33b9ce70fe7

    SHA1

    e62e81500d7324d7dc34ce66da207288a7c62d1f

    SHA256

    f6a3f35631f3d266f108f052eb21c6647be23579211a4fc9ff5be347b266b284

    SHA512

    c421340e7e49f8d755b2d3d7b8a25d2c8cc1e09ef3dcc3656485c7a78746c5bdc5e27e6f77e10bb2c4e61f7535593ea379ce4e8f95c887341c765919f4ab6577

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

    Filesize

    89KB

    MD5

    f27e7337dae7da2b4683f33b9ce70fe7

    SHA1

    e62e81500d7324d7dc34ce66da207288a7c62d1f

    SHA256

    f6a3f35631f3d266f108f052eb21c6647be23579211a4fc9ff5be347b266b284

    SHA512

    c421340e7e49f8d755b2d3d7b8a25d2c8cc1e09ef3dcc3656485c7a78746c5bdc5e27e6f77e10bb2c4e61f7535593ea379ce4e8f95c887341c765919f4ab6577

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

    Filesize

    89KB

    MD5

    f27e7337dae7da2b4683f33b9ce70fe7

    SHA1

    e62e81500d7324d7dc34ce66da207288a7c62d1f

    SHA256

    f6a3f35631f3d266f108f052eb21c6647be23579211a4fc9ff5be347b266b284

    SHA512

    c421340e7e49f8d755b2d3d7b8a25d2c8cc1e09ef3dcc3656485c7a78746c5bdc5e27e6f77e10bb2c4e61f7535593ea379ce4e8f95c887341c765919f4ab6577

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

    Filesize

    315B

    MD5

    a34ac19f4afae63adc5d2f7bc970c07f

    SHA1

    a82190fc530c265aa40a045c21770d967f4767b8

    SHA256

    d5a89e26beae0bc03ad18a0b0d1d3d75f87c32047879d25da11970cb5c4662a3

    SHA512

    42e53d96e5961e95b7a984d9c9778a1d3bd8ee0c87b8b3b515fa31f67c2d073c8565afc2f4b962c43668c4efa1e478da9bb0ecffa79479c7e880731bc4c55765

  • memory/2276-20-0x0000000000500000-0x0000000000510000-memory.dmp

    Filesize

    64KB

  • memory/2276-3-0x0000000000640000-0x0000000000646000-memory.dmp

    Filesize

    24KB

  • memory/2276-2-0x0000000000520000-0x0000000000526000-memory.dmp

    Filesize

    24KB

  • memory/2276-0-0x0000000000500000-0x0000000000510000-memory.dmp

    Filesize

    64KB

  • memory/2276-1-0x0000000000520000-0x0000000000526000-memory.dmp

    Filesize

    24KB

  • memory/4028-17-0x0000000000500000-0x0000000000510000-memory.dmp

    Filesize

    64KB

  • memory/4028-21-0x00000000006A0000-0x00000000006A6000-memory.dmp

    Filesize

    24KB

  • memory/4028-19-0x00000000006D0000-0x00000000006D6000-memory.dmp

    Filesize

    24KB

  • memory/4028-49-0x0000000000500000-0x0000000000510000-memory.dmp

    Filesize

    64KB