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Analysis

  • max time kernel
    149s
  • max time network
    155s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20240412-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20240412-enlocale:en-usos:windows10-2004-x64system
  • submitted
    16/04/2024, 00:34

General

  • Target

    2024-04-16_8c7d5fa3aaa256b18bdc4a872bdd16df_cryptolocker.exe

  • Size

    38KB

  • MD5

    8c7d5fa3aaa256b18bdc4a872bdd16df

  • SHA1

    742e29c429aefde6d61d05a967837edf9c17051f

  • SHA256

    e8705c2bbea7e5b35259da2b9211edc5199ad9d9bbb5d37aea92e7d27ff39fba

  • SHA512

    0c17b58510f16948d420665134e5d750dbfb2cca149bbe5e9331f35267590ed3e745701f86338c44514a7002639100b8c0e5c5634bb3bba431d2b25b562cfbd4

  • SSDEEP

    768:vQz7yVEhs9+js1SQtOOtEvwDpjz9+4/UkRYzMAZ+mX:vj+jsMQMOtEvwDpj5HcSYP5

Score
9/10

Malware Config

Signatures

  • Detection of CryptoLocker Variants 1 IoCs
  • Detection of Cryptolocker Samples 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\2024-04-16_8c7d5fa3aaa256b18bdc4a872bdd16df_cryptolocker.exe
    "C:\Users\Admin\AppData\Local\Temp\2024-04-16_8c7d5fa3aaa256b18bdc4a872bdd16df_cryptolocker.exe"
    1⤵
    • Checks computer location settings
    • Suspicious use of WriteProcessMemory
    PID:3740
    • C:\Users\Admin\AppData\Local\Temp\misid.exe
      "C:\Users\Admin\AppData\Local\Temp\misid.exe"
      2⤵
      • Executes dropped EXE
      PID:2940

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

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Downloads

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

    Filesize

    38KB

    MD5

    edc43340da6a5c56e45ed1e9c014c086

    SHA1

    0b721657812be1d5b8635e8800dda598052df384

    SHA256

    18b5ccd58000a6a11be3bce7366534a5916e56eb7ec58f1e0aa2e2e0e91b0362

    SHA512

    b8b885167aa028d1160d45e9aa9bd2d000f9c8e79623db4a29bf3a8b526cf16faa73a1e2325a5bdd315d7792bab31db6d9fd06d416d7bb2a9dc91c6406e72cad

  • memory/2940-18-0x00000000005D0000-0x00000000005D6000-memory.dmp

    Filesize

    24KB

  • memory/2940-17-0x0000000000560000-0x0000000000566000-memory.dmp

    Filesize

    24KB

  • memory/3740-0-0x00000000020D0000-0x00000000020D6000-memory.dmp

    Filesize

    24KB

  • memory/3740-1-0x00000000020D0000-0x00000000020D6000-memory.dmp

    Filesize

    24KB

  • memory/3740-2-0x00000000020F0000-0x00000000020F6000-memory.dmp

    Filesize

    24KB