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Analysis

  • max time kernel
    143s
  • max time network
    148s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20230703-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20230703-enlocale:en-usos:windows10-2004-x64system
  • submitted
    22/08/2023, 15:10

General

  • Target

    677b220c39de555d63145b36d216733d_cryptolocker_JC.exe

  • Size

    36KB

  • MD5

    677b220c39de555d63145b36d216733d

  • SHA1

    fced7689d478b060e48af1a16ed7c4c5852cf07b

  • SHA256

    6428a096dc6d86710c7740b73131600ff466d524492515d476116be2888c4e45

  • SHA512

    1a4ab61722409039c747be5ac184dc8211093fbc9e1935eb8236452db496adf61c468af9d01e6e3221c7f7b235db1068e358c0fa516421e9d976e6a9b0405661

  • SSDEEP

    384:60VkMq01bJ3wtEwPS8HLEh+Jagz+3be+26aIIcVRYpetOOtEvwDpjqIGRmdHzOOG:6Qz7yVEhs9+4OR7tOOtEvwDpjLHqhJ

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\677b220c39de555d63145b36d216733d_cryptolocker_JC.exe
    "C:\Users\Admin\AppData\Local\Temp\677b220c39de555d63145b36d216733d_cryptolocker_JC.exe"
    1⤵
    • Suspicious use of WriteProcessMemory
    PID:1432
    • 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:5108

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

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Downloads

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

    Filesize

    36KB

    MD5

    38f3e956391bc38732fef42750153715

    SHA1

    9288fe4daadf545577e7e505f21ceaabcceb9f15

    SHA256

    2b8d9a49131502b839bc59afaa46ef156f82b7cfd30f27c89f9d6bd56c7162d9

    SHA512

    2dc800e6c41c408b82179bc659d3b487986b55bbd6fa9a93de56acb96ce6c4ce32e273cff2152af669da49902c5dd0074909980f4844bca967d99e3f6ae09297

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

    Filesize

    36KB

    MD5

    38f3e956391bc38732fef42750153715

    SHA1

    9288fe4daadf545577e7e505f21ceaabcceb9f15

    SHA256

    2b8d9a49131502b839bc59afaa46ef156f82b7cfd30f27c89f9d6bd56c7162d9

    SHA512

    2dc800e6c41c408b82179bc659d3b487986b55bbd6fa9a93de56acb96ce6c4ce32e273cff2152af669da49902c5dd0074909980f4844bca967d99e3f6ae09297

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

    Filesize

    36KB

    MD5

    38f3e956391bc38732fef42750153715

    SHA1

    9288fe4daadf545577e7e505f21ceaabcceb9f15

    SHA256

    2b8d9a49131502b839bc59afaa46ef156f82b7cfd30f27c89f9d6bd56c7162d9

    SHA512

    2dc800e6c41c408b82179bc659d3b487986b55bbd6fa9a93de56acb96ce6c4ce32e273cff2152af669da49902c5dd0074909980f4844bca967d99e3f6ae09297

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

    Filesize

    315B

    MD5

    a34ac19f4afae63adc5d2f7bc970c07f

    SHA1

    a82190fc530c265aa40a045c21770d967f4767b8

    SHA256

    d5a89e26beae0bc03ad18a0b0d1d3d75f87c32047879d25da11970cb5c4662a3

    SHA512

    42e53d96e5961e95b7a984d9c9778a1d3bd8ee0c87b8b3b515fa31f67c2d073c8565afc2f4b962c43668c4efa1e478da9bb0ecffa79479c7e880731bc4c55765

  • memory/1432-133-0x0000000000500000-0x000000000050F000-memory.dmp

    Filesize

    60KB

  • memory/1432-134-0x0000000000560000-0x0000000000566000-memory.dmp

    Filesize

    24KB

  • memory/1432-135-0x0000000000560000-0x0000000000566000-memory.dmp

    Filesize

    24KB

  • memory/1432-136-0x00000000020F0000-0x00000000020F6000-memory.dmp

    Filesize

    24KB

  • memory/1432-151-0x0000000000500000-0x000000000050F000-memory.dmp

    Filesize

    60KB

  • memory/5108-153-0x00000000006A0000-0x00000000006A6000-memory.dmp

    Filesize

    24KB

  • memory/5108-152-0x0000000002000000-0x0000000002006000-memory.dmp

    Filesize

    24KB

  • memory/5108-181-0x0000000000500000-0x000000000050F000-memory.dmp

    Filesize

    60KB