Analysis

  • max time kernel
    147s
  • max time network
    151s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20231215-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20231215-enlocale:en-usos:windows10-2004-x64system
  • submitted
    07-01-2024 12:18

General

  • Target

    2024-01-06_ea1ddd913292ad135145ded0d8a2ec25_cryptolocker.exe

  • Size

    45KB

  • MD5

    ea1ddd913292ad135145ded0d8a2ec25

  • SHA1

    3511d7161c7f7477216ce7b33f7cf5d609f900c3

  • SHA256

    cee6d0197770b472ca516627d5ef04648b63d74488579a2fe097a279906528b0

  • SHA512

    bb13ff111a8c80e6eee574b648ba9eb381eab6084da04f907912c2895232b31531253e5208a35daf9d13b41b5d7737c0e8633661ca91759c513d775e2b2a97b4

  • SSDEEP

    768:xQz7yVEhs9+4uR1bytOOtEvwDpjWE6BLtlde6v:xj+VGMOtEvwDpjk/e6v

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).

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

Processes

  • C:\Users\Admin\AppData\Local\Temp\2024-01-06_ea1ddd913292ad135145ded0d8a2ec25_cryptolocker.exe
    "C:\Users\Admin\AppData\Local\Temp\2024-01-06_ea1ddd913292ad135145ded0d8a2ec25_cryptolocker.exe"
    1⤵
    • Checks computer location settings
    • Suspicious use of WriteProcessMemory
    PID:864
    • C:\Users\Admin\AppData\Local\Temp\misid.exe
      "C:\Users\Admin\AppData\Local\Temp\misid.exe"
      2⤵
      • Checks computer location settings
      • Executes dropped EXE
      • Modifies system certificate store
      PID:4432

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

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Downloads

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

    Filesize

    45KB

    MD5

    c3823db507a93ddae612cc834cf94536

    SHA1

    61bcdfc7969060fcc9a7c4db6adec179fd5be456

    SHA256

    45e57ab8fd6680aa0e887e6dc563a19f3cafab9fe403ca7d89fb84f35dfb0675

    SHA512

    1c8f6eae947217fdb9dd1d045d6c9c0de315108e3e984027af4d4081bcfea5ba55a219a49a734ccdd895f59443a7552ca870b9eae38a3f043ac9dd52d8a9b09b

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

    Filesize

    315B

    MD5

    a34ac19f4afae63adc5d2f7bc970c07f

    SHA1

    a82190fc530c265aa40a045c21770d967f4767b8

    SHA256

    d5a89e26beae0bc03ad18a0b0d1d3d75f87c32047879d25da11970cb5c4662a3

    SHA512

    42e53d96e5961e95b7a984d9c9778a1d3bd8ee0c87b8b3b515fa31f67c2d073c8565afc2f4b962c43668c4efa1e478da9bb0ecffa79479c7e880731bc4c55765

  • memory/864-0-0x0000000000500000-0x0000000000510000-memory.dmp

    Filesize

    64KB

  • memory/864-3-0x00000000020F0000-0x00000000020F6000-memory.dmp

    Filesize

    24KB

  • memory/864-2-0x00000000020D0000-0x00000000020D6000-memory.dmp

    Filesize

    24KB

  • memory/864-1-0x00000000020D0000-0x00000000020D6000-memory.dmp

    Filesize

    24KB

  • memory/864-16-0x0000000000500000-0x0000000000510000-memory.dmp

    Filesize

    64KB

  • memory/4432-19-0x00000000004F0000-0x00000000004F6000-memory.dmp

    Filesize

    24KB

  • memory/4432-25-0x00000000004D0000-0x00000000004D6000-memory.dmp

    Filesize

    24KB

  • memory/4432-48-0x0000000000500000-0x0000000000510000-memory.dmp

    Filesize

    64KB