Analysis

  • max time kernel
    135s
  • max time network
    140s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20241007-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20241007-enlocale:en-usos:windows10-2004-x64system
  • submitted
    21-11-2024 07:41

General

  • Target

    2024-11-21_f634b76e3b7e399bb0d149d945a41e88_cryptolocker.exe

  • Size

    73KB

  • MD5

    f634b76e3b7e399bb0d149d945a41e88

  • SHA1

    50678c49232ee774f54865baf7b75f3de33de19e

  • SHA256

    4018e75be60acefac3e57e32c978f14f3637fdb1f1da6edf798ce423ca2d70a0

  • SHA512

    07c7284c1bf3eb610c4411e6635fe6827cdedde25abb0fb3005bbe2bff70418fffaf7137ad172e398987ff03336f8fdb5cfc91c15059f4ee71074d2796e542db

  • SSDEEP

    768:vQz7yVEhs9+js1SQtOOtEvwDpjz9+4ZPsED3VK2+ZtyOjgO4r9vFAg2rq2g1B/Rx:vj+jsMQMOtEvwDpj5HZYTjipvF24p

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\2024-11-21_f634b76e3b7e399bb0d149d945a41e88_cryptolocker.exe
    "C:\Users\Admin\AppData\Local\Temp\2024-11-21_f634b76e3b7e399bb0d149d945a41e88_cryptolocker.exe"
    1⤵
    • Checks computer location settings
    • System Location Discovery: System Language Discovery
    • Suspicious use of WriteProcessMemory
    PID:4316
    • 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:3660

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

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Downloads

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

    Filesize

    73KB

    MD5

    03458a81a5386857109b2128b543608a

    SHA1

    ffe3d7ad26550d6ed9f695adbd56573649f46ddf

    SHA256

    262505533ccb3016af6c736c1799f1f50f72289e422e6173ff1efba752d2ba50

    SHA512

    6622d5c0a240b07d958d10f9510ec08126e21b6bf492afee0cd5e8a2f04db1c18978c1fe924d4bd2dd5b4da4d15ffbee8688b0a58b5aa1c9c1eab260d9283a0f

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

    Filesize

    315B

    MD5

    a34ac19f4afae63adc5d2f7bc970c07f

    SHA1

    a82190fc530c265aa40a045c21770d967f4767b8

    SHA256

    d5a89e26beae0bc03ad18a0b0d1d3d75f87c32047879d25da11970cb5c4662a3

    SHA512

    42e53d96e5961e95b7a984d9c9778a1d3bd8ee0c87b8b3b515fa31f67c2d073c8565afc2f4b962c43668c4efa1e478da9bb0ecffa79479c7e880731bc4c55765

  • memory/3660-18-0x0000000001FF0000-0x0000000001FF6000-memory.dmp

    Filesize

    24KB

  • memory/3660-17-0x00000000005B0000-0x00000000005B6000-memory.dmp

    Filesize

    24KB

  • memory/4316-0-0x00000000007B0000-0x00000000007B6000-memory.dmp

    Filesize

    24KB

  • memory/4316-1-0x00000000007B0000-0x00000000007B6000-memory.dmp

    Filesize

    24KB

  • memory/4316-2-0x00000000007D0000-0x00000000007D6000-memory.dmp

    Filesize

    24KB