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Analysis

  • max time kernel
    150s
  • max time network
    150s
  • platform
    windows7_x64
  • resource
    win7-20240221-en
  • resource tags

    arch:x64arch:x86image:win7-20240221-enlocale:en-usos:windows7-x64system
  • submitted
    26/05/2024, 06:51

General

  • Target

    2024-05-26_eb7a0f441398c893027baf838ce7e2d1_cryptolocker.exe

  • Size

    83KB

  • MD5

    eb7a0f441398c893027baf838ce7e2d1

  • SHA1

    8ecd22e6e1298a75fc38cbe8e16f2c40e4d0d4a0

  • SHA256

    6540144d17a4f9dd65fadfc3559aa02ed94255490033e2697f831f45472293d7

  • SHA512

    27d990f091d2a5163ed9a61ca79d0ff12deae1b3118b89d00dc7010e9991cb395c684acd7415b726be20165f38792b972d13df288af162e909826837a8cb9b01

  • SSDEEP

    1536:Tj+jsMQMOtEvwDpj5HmpJpOUHECgNMo0vp2EMMrhcx:TCjsIOtEvwDpj5HE/OUHnSMQx

Score
9/10

Malware Config

Signatures

  • Detection of CryptoLocker Variants 5 IoCs
  • Detection of Cryptolocker Samples 5 IoCs
  • Executes dropped EXE 1 IoCs
  • Loads dropped DLL 1 IoCs
  • Enumerates physical storage devices 1 TTPs

    Attempts to interact with connected storage/optical drive(s).

  • Suspicious use of WriteProcessMemory 4 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\2024-05-26_eb7a0f441398c893027baf838ce7e2d1_cryptolocker.exe
    "C:\Users\Admin\AppData\Local\Temp\2024-05-26_eb7a0f441398c893027baf838ce7e2d1_cryptolocker.exe"
    1⤵
    • Loads dropped DLL
    • Suspicious use of WriteProcessMemory
    PID:2100
    • C:\Users\Admin\AppData\Local\Temp\misid.exe
      "C:\Users\Admin\AppData\Local\Temp\misid.exe"
      2⤵
      • Executes dropped EXE
      PID:3008

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

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Downloads

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

    Filesize

    83KB

    MD5

    f179897975f1d28cc5fb455e7187ce97

    SHA1

    d143b450bd5662e266603241d186d738f6472441

    SHA256

    b960a65d2e8c6470ee768b035377d813e20a69b9650b8b7fd471e865f4c00f23

    SHA512

    7879064bca8486432b5f887d8b2fa01797903c9b9558f5b9efc9f1db090ce65c5a1e8daa36e3b8aa7b055296750653f6982576da6a39d0d791098022f0f79c8a

  • memory/2100-0-0x0000000000500000-0x000000000050E000-memory.dmp

    Filesize

    56KB

  • memory/2100-1-0x0000000000240000-0x0000000000246000-memory.dmp

    Filesize

    24KB

  • memory/2100-2-0x0000000000290000-0x0000000000296000-memory.dmp

    Filesize

    24KB

  • memory/2100-9-0x0000000000240000-0x0000000000246000-memory.dmp

    Filesize

    24KB

  • memory/2100-15-0x0000000000500000-0x000000000050E000-memory.dmp

    Filesize

    56KB

  • memory/3008-16-0x0000000000500000-0x000000000050E000-memory.dmp

    Filesize

    56KB

  • memory/3008-18-0x00000000004D0000-0x00000000004D6000-memory.dmp

    Filesize

    24KB

  • memory/3008-25-0x0000000000480000-0x0000000000486000-memory.dmp

    Filesize

    24KB

  • memory/3008-26-0x0000000000500000-0x000000000050E000-memory.dmp

    Filesize

    56KB