Analysis

  • max time kernel
    136s
  • max time network
    144s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20241007-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20241007-enlocale:en-usos:windows10-2004-x64system
  • submitted
    31-10-2024 08:24

General

  • Target

    2024-10-31_45e31ed6b98e640df386242a89a09e29_cryptolocker.exe

  • Size

    47KB

  • MD5

    45e31ed6b98e640df386242a89a09e29

  • SHA1

    ba2b2bc1e8cfd3c710b28f2ba65265c41d316286

  • SHA256

    f83c85e2fbd2039f4b365a5ca449c3b804fd427b31b3865cb89319eaa3913f20

  • SHA512

    0316e8c16922f0f854db570f01271209c315953fb0ba10307ff922fb5be42456c8a825db3dec665124c2a609bf08237c7d096add85419cc40b541a6415e443c2

  • SSDEEP

    768:6Qz7yVEhs9+4OR7tOOtEvwDpjLHqh6/aMDhkJlN:6j+1NMOtEvwDpjrRraJP

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\2024-10-31_45e31ed6b98e640df386242a89a09e29_cryptolocker.exe
    "C:\Users\Admin\AppData\Local\Temp\2024-10-31_45e31ed6b98e640df386242a89a09e29_cryptolocker.exe"
    1⤵
    • Checks computer location settings
    • System Location Discovery: System Language Discovery
    • Suspicious use of WriteProcessMemory
    PID:3120
    • 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:2656

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

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Downloads

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

    Filesize

    47KB

    MD5

    109c123d65c966b59f36795219f7cbc5

    SHA1

    839d6679f49c580a5bace6c392160e54a3179e1b

    SHA256

    4bde4b1f62c4bb72f1785e264813d0da6cab1ab34b69a3ec3dbf1b7fff7e7ac2

    SHA512

    ddf891ac0d53eb34e3a9920aaca82e00ae688d21858a3505935e2063ef42dec17e98b6dd677c79cd51cb4755d955c6935d209aed34d9ac818cb0528bc76bf7fc

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

    Filesize

    315B

    MD5

    a34ac19f4afae63adc5d2f7bc970c07f

    SHA1

    a82190fc530c265aa40a045c21770d967f4767b8

    SHA256

    d5a89e26beae0bc03ad18a0b0d1d3d75f87c32047879d25da11970cb5c4662a3

    SHA512

    42e53d96e5961e95b7a984d9c9778a1d3bd8ee0c87b8b3b515fa31f67c2d073c8565afc2f4b962c43668c4efa1e478da9bb0ecffa79479c7e880731bc4c55765

  • memory/2656-19-0x00000000005E0000-0x00000000005E6000-memory.dmp

    Filesize

    24KB

  • memory/2656-25-0x00000000004E0000-0x00000000004E6000-memory.dmp

    Filesize

    24KB

  • memory/2656-48-0x0000000000500000-0x000000000050F000-memory.dmp

    Filesize

    60KB

  • memory/3120-0-0x0000000000500000-0x000000000050F000-memory.dmp

    Filesize

    60KB

  • memory/3120-1-0x00000000020D0000-0x00000000020D6000-memory.dmp

    Filesize

    24KB

  • memory/3120-2-0x00000000020D0000-0x00000000020D6000-memory.dmp

    Filesize

    24KB

  • memory/3120-3-0x00000000020F0000-0x00000000020F6000-memory.dmp

    Filesize

    24KB

  • memory/3120-18-0x0000000000500000-0x000000000050F000-memory.dmp

    Filesize

    60KB