Analysis

  • max time kernel
    140s
  • max time network
    147s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20230703-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20230703-enlocale:en-usos:windows10-2004-x64system
  • submitted
    06/08/2023, 15:59

General

  • Target

    8e2ad84ef66c2a0588f176587c41e9aa_cryptolocker_JC.exe

  • Size

    62KB

  • MD5

    8e2ad84ef66c2a0588f176587c41e9aa

  • SHA1

    0cca98d40e7eb3f9774e78ec6b6dd5f3e7a5eb0f

  • SHA256

    4a6531b27f607f1fc4a174dac269587b3b611f16d592087e88f9a4574af58ea3

  • SHA512

    a14cc459f923a16adfad2c0cb19b9290d829dfa436980f2c3a47999079b5c22534d79f347a960b41d7756f2ef9251c4056f649e700b9cf4e7be90c9feb8ceaf8

  • SSDEEP

    1536:ZzFbxmLPWQMOtEvwDpj386Sj/WprgJN6tZdOyJ36n9FQX:ZVxkGOtEvwDpjcaAG

Score
7/10

Malware Config

Signatures

  • Executes dropped EXE 1 IoCs
  • Enumerates physical storage devices 1 TTPs

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

  • Modifies system certificate store 2 TTPs 8 IoCs
  • Suspicious use of WriteProcessMemory 3 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\8e2ad84ef66c2a0588f176587c41e9aa_cryptolocker_JC.exe
    "C:\Users\Admin\AppData\Local\Temp\8e2ad84ef66c2a0588f176587c41e9aa_cryptolocker_JC.exe"
    1⤵
    • Suspicious use of WriteProcessMemory
    PID:2992
    • C:\Users\Admin\AppData\Local\Temp\misid.exe
      "C:\Users\Admin\AppData\Local\Temp\misid.exe"
      2⤵
      • Executes dropped EXE
      • Modifies system certificate store
      PID:540

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

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Downloads

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

    Filesize

    62KB

    MD5

    5a690ea3fcc993dfcae3c4cd837825ed

    SHA1

    9910961ad983c8e9d5cd63890995404237b05794

    SHA256

    5b7a77c69733743028ed4cfc8324fbbacf6b069924f01fbf40afd34f5e80f64c

    SHA512

    526730b9af2d7c3e65ad675e0ac8f6f6706715d5d7f20128de6f9ffabc1e7b34e04b6810304f73f67048856c6b24243b98e4b9437c75e6f126a162554cb2be33

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

    Filesize

    62KB

    MD5

    5a690ea3fcc993dfcae3c4cd837825ed

    SHA1

    9910961ad983c8e9d5cd63890995404237b05794

    SHA256

    5b7a77c69733743028ed4cfc8324fbbacf6b069924f01fbf40afd34f5e80f64c

    SHA512

    526730b9af2d7c3e65ad675e0ac8f6f6706715d5d7f20128de6f9ffabc1e7b34e04b6810304f73f67048856c6b24243b98e4b9437c75e6f126a162554cb2be33

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

    Filesize

    62KB

    MD5

    5a690ea3fcc993dfcae3c4cd837825ed

    SHA1

    9910961ad983c8e9d5cd63890995404237b05794

    SHA256

    5b7a77c69733743028ed4cfc8324fbbacf6b069924f01fbf40afd34f5e80f64c

    SHA512

    526730b9af2d7c3e65ad675e0ac8f6f6706715d5d7f20128de6f9ffabc1e7b34e04b6810304f73f67048856c6b24243b98e4b9437c75e6f126a162554cb2be33

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

    Filesize

    315B

    MD5

    a34ac19f4afae63adc5d2f7bc970c07f

    SHA1

    a82190fc530c265aa40a045c21770d967f4767b8

    SHA256

    d5a89e26beae0bc03ad18a0b0d1d3d75f87c32047879d25da11970cb5c4662a3

    SHA512

    42e53d96e5961e95b7a984d9c9778a1d3bd8ee0c87b8b3b515fa31f67c2d073c8565afc2f4b962c43668c4efa1e478da9bb0ecffa79479c7e880731bc4c55765

  • memory/540-153-0x00000000005D0000-0x00000000005D6000-memory.dmp

    Filesize

    24KB

  • memory/540-152-0x00000000005B0000-0x00000000005B6000-memory.dmp

    Filesize

    24KB

  • memory/2992-133-0x00000000004E0000-0x00000000004E3000-memory.dmp

    Filesize

    12KB

  • memory/2992-134-0x0000000002320000-0x0000000002326000-memory.dmp

    Filesize

    24KB

  • memory/2992-135-0x0000000002320000-0x0000000002326000-memory.dmp

    Filesize

    24KB

  • memory/2992-136-0x0000000002190000-0x0000000002196000-memory.dmp

    Filesize

    24KB

  • memory/2992-150-0x00000000004E0000-0x00000000004E3000-memory.dmp

    Filesize

    12KB