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Analysis

  • max time kernel
    149s
  • max time network
    155s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20240226-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20240226-enlocale:en-usos:windows10-2004-x64system
  • submitted
    26/03/2024, 03:45

General

  • Target

    2024-03-26_70de09f094cd320e06b6e2c69533c33d_cryptolocker.exe

  • Size

    68KB

  • MD5

    70de09f094cd320e06b6e2c69533c33d

  • SHA1

    f72288f22608bf858fa4a882eadcd6231a906f33

  • SHA256

    7e8ff6d5827bb1e753b4dd00a181c0e47676597367f68737a807eea54c4d321e

  • SHA512

    4adf8abaf7892c51b7e262402c06416a3d9068d6bcf4492f5c7edcd3f09af846ae7952d860cb46d75ac497fc6a01521e8ee8953a867ade5628e4307b6f43409b

  • SSDEEP

    1536:ZzFbxmLPWQMOtEvwDpj386Sj/WprgJN6tZdOyJ3hvLcbVpkB:ZVxkGOtEvwDpjcawU

Score
9/10

Malware Config

Signatures

  • Detection of CryptoLocker Variants 1 IoCs
  • Checks computer location settings 2 TTPs 1 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).

  • Suspicious use of WriteProcessMemory 3 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\2024-03-26_70de09f094cd320e06b6e2c69533c33d_cryptolocker.exe
    "C:\Users\Admin\AppData\Local\Temp\2024-03-26_70de09f094cd320e06b6e2c69533c33d_cryptolocker.exe"
    1⤵
    • Checks computer location settings
    • Suspicious use of WriteProcessMemory
    PID:3676
    • C:\Users\Admin\AppData\Local\Temp\misid.exe
      "C:\Users\Admin\AppData\Local\Temp\misid.exe"
      2⤵
      • Executes dropped EXE
      PID:2616

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

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Downloads

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

    Filesize

    68KB

    MD5

    d50041e082594835c13bf54fe6d73f16

    SHA1

    3bec208d4f5318f4b4d61c1d1ba3ef57f69f0b6a

    SHA256

    60741844efcfa706297260ab87b03c60daf0140ec1482d2b609a3298a63f3fc5

    SHA512

    1d6e74cfa0b721930393a831a70c3f4e987942b9b8839cf04c9b6adc753cb1c8b9a63e6a8779185e5adb6c17a7556b734089f74fecdd5016218d235025e76a54

  • memory/2616-17-0x00000000004E0000-0x00000000004E3000-memory.dmp

    Filesize

    12KB

  • memory/2616-20-0x00000000006D0000-0x00000000006D6000-memory.dmp

    Filesize

    24KB

  • memory/2616-22-0x0000000000660000-0x0000000000666000-memory.dmp

    Filesize

    24KB

  • memory/3676-0-0x00000000004E0000-0x00000000004E3000-memory.dmp

    Filesize

    12KB

  • memory/3676-1-0x0000000000560000-0x0000000000566000-memory.dmp

    Filesize

    24KB

  • memory/3676-2-0x0000000000560000-0x0000000000566000-memory.dmp

    Filesize

    24KB

  • memory/3676-3-0x00000000006C0000-0x00000000006C6000-memory.dmp

    Filesize

    24KB

  • memory/3676-19-0x00000000004E0000-0x00000000004E3000-memory.dmp

    Filesize

    12KB