Analysis

  • max time kernel
    149s
  • 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
    03-08-2023 16:33

General

  • Target

    4d585d884ba70d5fa1a7b61922c7d431_cryptolocker_JC.exe

  • Size

    45KB

  • MD5

    4d585d884ba70d5fa1a7b61922c7d431

  • SHA1

    5f0386a52f6ecac7b2aaf208119286a8f6188702

  • SHA256

    5bab35e4cad01f41fe258e2fa11438c700d784ce1a422b604d1ac0320d66fd73

  • SHA512

    3158396e59ef44a7485f5cf8a74d6d28ef0c12418d167422b0fff1a93c39310a36f09ce88a15e17c6f90f26fd30d3bbe880c09cd7e55b34d3942263513e85128

  • SSDEEP

    768:79inqyNR/QtOOtEvwDpjBKp1MiYPP/btp:79mqyNhQMOtEvwDpjBktYH3

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).

  • Suspicious use of WriteProcessMemory 3 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\4d585d884ba70d5fa1a7b61922c7d431_cryptolocker_JC.exe
    "C:\Users\Admin\AppData\Local\Temp\4d585d884ba70d5fa1a7b61922c7d431_cryptolocker_JC.exe"
    1⤵
    • Suspicious use of WriteProcessMemory
    PID:2868
    • C:\Users\Admin\AppData\Local\Temp\asih.exe
      "C:\Users\Admin\AppData\Local\Temp\asih.exe"
      2⤵
      • Executes dropped EXE
      PID:1480

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

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Downloads

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

    Filesize

    45KB

    MD5

    701ec461cb3572911453c5e9c1ed1927

    SHA1

    c620aada1d67a0c8c46b1aff7a7da57093d53d74

    SHA256

    34eb97771b5ac35da6f0ffe1593ed76b70c467485ceebb46c0897126cb7f0769

    SHA512

    22bd8f39a6d956ae4e609c34086df519cb7ba6d0860738dd52ae076552f6dfad9eaedc2bd536359cae10f1221ae0f565547505aaf2e2376659304a11554ebffc

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

    Filesize

    45KB

    MD5

    701ec461cb3572911453c5e9c1ed1927

    SHA1

    c620aada1d67a0c8c46b1aff7a7da57093d53d74

    SHA256

    34eb97771b5ac35da6f0ffe1593ed76b70c467485ceebb46c0897126cb7f0769

    SHA512

    22bd8f39a6d956ae4e609c34086df519cb7ba6d0860738dd52ae076552f6dfad9eaedc2bd536359cae10f1221ae0f565547505aaf2e2376659304a11554ebffc

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

    Filesize

    45KB

    MD5

    701ec461cb3572911453c5e9c1ed1927

    SHA1

    c620aada1d67a0c8c46b1aff7a7da57093d53d74

    SHA256

    34eb97771b5ac35da6f0ffe1593ed76b70c467485ceebb46c0897126cb7f0769

    SHA512

    22bd8f39a6d956ae4e609c34086df519cb7ba6d0860738dd52ae076552f6dfad9eaedc2bd536359cae10f1221ae0f565547505aaf2e2376659304a11554ebffc

  • memory/1480-152-0x00000000006B0000-0x00000000006B6000-memory.dmp

    Filesize

    24KB

  • memory/1480-153-0x00000000006D0000-0x00000000006D6000-memory.dmp

    Filesize

    24KB

  • memory/1480-159-0x0000000000500000-0x000000000050F000-memory.dmp

    Filesize

    60KB

  • memory/2868-133-0x0000000000500000-0x000000000050F000-memory.dmp

    Filesize

    60KB

  • memory/2868-134-0x00000000006A0000-0x00000000006A6000-memory.dmp

    Filesize

    24KB

  • memory/2868-135-0x00000000006A0000-0x00000000006A6000-memory.dmp

    Filesize

    24KB

  • memory/2868-136-0x00000000020F0000-0x00000000020F6000-memory.dmp

    Filesize

    24KB

  • memory/2868-150-0x0000000000500000-0x000000000050F000-memory.dmp

    Filesize

    60KB