Analysis

  • max time kernel
    143s
  • max time network
    154s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20230703-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20230703-enlocale:en-usos:windows10-2004-x64system
  • submitted
    18/08/2023, 16:38

General

  • Target

    35a9756dc48cbd143332f3743336ffae_cryptolocker_JC.exe

  • Size

    54KB

  • MD5

    35a9756dc48cbd143332f3743336ffae

  • SHA1

    d70210625ec6d9c6c80510e45e702b9a4b4fba76

  • SHA256

    0974cd0ac14d8ad53e9f8854230691a34e7f3ed710028e8ef69d71264a6dfd7a

  • SHA512

    c3412d30dc9d4bab98c56ef003f15f0acc13a5532ec541fa5676e53b5bb1d7fe5e66e71c65374261531a5288aac4f9c26402ed4923918a1dfae5da3499826033

  • SSDEEP

    768:zQz7yVEhs9+syJP6ntOOtEvwDpjFeV0ZOfcpej:zj+soPSMOtEvwDpj4yyj

Score
7/10
upx

Malware Config

Signatures

  • Executes dropped EXE 1 IoCs
  • UPX packed file 6 IoCs

    Detects executables packed with UPX/modified UPX open source packer.

  • Enumerates physical storage devices 1 TTPs

    Attempts to interact with connected storage/optical drive(s).

  • Modifies system certificate store 2 TTPs 8 IoCs
  • Suspicious use of WriteProcessMemory 3 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\35a9756dc48cbd143332f3743336ffae_cryptolocker_JC.exe
    "C:\Users\Admin\AppData\Local\Temp\35a9756dc48cbd143332f3743336ffae_cryptolocker_JC.exe"
    1⤵
    • Suspicious use of WriteProcessMemory
    PID:3132
    • 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:5072

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

Loading Replay Monitor...

Downloads

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

    Filesize

    54KB

    MD5

    c91187da03f9e0160976d0fb54d11743

    SHA1

    500c515250ca6bf2d98112ca4886a11b0b7a94d8

    SHA256

    0e0ac94688a179214821839633634ed8e73ca3b509096826a3bdda68801ca093

    SHA512

    a8d03dfa589e6de412e3f78ca2b33aaa1699696d3880c46e3f9bbabc695d62fc137993fbe8930914a263b0deb440fcf890064a307e15150ccb3022e06b43ce09

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

    Filesize

    54KB

    MD5

    c91187da03f9e0160976d0fb54d11743

    SHA1

    500c515250ca6bf2d98112ca4886a11b0b7a94d8

    SHA256

    0e0ac94688a179214821839633634ed8e73ca3b509096826a3bdda68801ca093

    SHA512

    a8d03dfa589e6de412e3f78ca2b33aaa1699696d3880c46e3f9bbabc695d62fc137993fbe8930914a263b0deb440fcf890064a307e15150ccb3022e06b43ce09

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

    Filesize

    54KB

    MD5

    c91187da03f9e0160976d0fb54d11743

    SHA1

    500c515250ca6bf2d98112ca4886a11b0b7a94d8

    SHA256

    0e0ac94688a179214821839633634ed8e73ca3b509096826a3bdda68801ca093

    SHA512

    a8d03dfa589e6de412e3f78ca2b33aaa1699696d3880c46e3f9bbabc695d62fc137993fbe8930914a263b0deb440fcf890064a307e15150ccb3022e06b43ce09

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

    Filesize

    315B

    MD5

    a34ac19f4afae63adc5d2f7bc970c07f

    SHA1

    a82190fc530c265aa40a045c21770d967f4767b8

    SHA256

    d5a89e26beae0bc03ad18a0b0d1d3d75f87c32047879d25da11970cb5c4662a3

    SHA512

    42e53d96e5961e95b7a984d9c9778a1d3bd8ee0c87b8b3b515fa31f67c2d073c8565afc2f4b962c43668c4efa1e478da9bb0ecffa79479c7e880731bc4c55765

  • memory/3132-133-0x0000000000500000-0x0000000000510000-memory.dmp

    Filesize

    64KB

  • memory/3132-134-0x0000000000840000-0x0000000000846000-memory.dmp

    Filesize

    24KB

  • memory/3132-135-0x0000000000840000-0x0000000000846000-memory.dmp

    Filesize

    24KB

  • memory/3132-136-0x0000000002100000-0x0000000002106000-memory.dmp

    Filesize

    24KB

  • memory/3132-150-0x0000000000500000-0x0000000000510000-memory.dmp

    Filesize

    64KB

  • memory/5072-152-0x00000000005C0000-0x00000000005C6000-memory.dmp

    Filesize

    24KB

  • memory/5072-153-0x00000000005A0000-0x00000000005A6000-memory.dmp

    Filesize

    24KB

  • memory/5072-181-0x0000000000500000-0x0000000000510000-memory.dmp

    Filesize

    64KB