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Analysis

  • max time kernel
    134s
  • max time network
    139s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20230703-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20230703-enlocale:en-usos:windows10-2004-x64system
  • submitted
    21/08/2023, 15:17

General

  • Target

    5b878bdd4c84b2193c7b6b9e544be4e1_cryptolocker_JC.exe

  • Size

    50KB

  • MD5

    5b878bdd4c84b2193c7b6b9e544be4e1

  • SHA1

    6ac29f77ac4ff107476ca548408d35284c8f49f3

  • SHA256

    836690af25130fbebe07383012d6b9eb360add06d9471a13601b8b656ba03cce

  • SHA512

    104be939904ce177b15000913689c3b289b21dc8fadbb56b6d81138944e88cc58e20dc4f3c1fbc7e261fae603f17c92d539b2f0568500fd7381fc72249991fb3

  • SSDEEP

    768:6Qz7yVEhs9+4OR7tOOtEvwDpjLHqPOYRmNxt5QCj5:6j+1NMOtEvwDpjr8oxEg5

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\5b878bdd4c84b2193c7b6b9e544be4e1_cryptolocker_JC.exe
    "C:\Users\Admin\AppData\Local\Temp\5b878bdd4c84b2193c7b6b9e544be4e1_cryptolocker_JC.exe"
    1⤵
    • Suspicious use of WriteProcessMemory
    PID:3628
    • 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:1536

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

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Downloads

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

    Filesize

    50KB

    MD5

    5a50464c91366accd9f9f0568edf14da

    SHA1

    fee195fbe47d8132382da416ea986c6cd11ed2e2

    SHA256

    71f3d1dc7a220507a58667f0cf9ad87a008dc774df635921194d7942f8a55c1d

    SHA512

    5ffb8b1800260e21740167a149bf78733e298921fe076b192614841c25ae725bb8a428a78b45fb38c55e6116faf97e68cc95607f0f7d46342c60aeed1854c08d

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

    Filesize

    50KB

    MD5

    5a50464c91366accd9f9f0568edf14da

    SHA1

    fee195fbe47d8132382da416ea986c6cd11ed2e2

    SHA256

    71f3d1dc7a220507a58667f0cf9ad87a008dc774df635921194d7942f8a55c1d

    SHA512

    5ffb8b1800260e21740167a149bf78733e298921fe076b192614841c25ae725bb8a428a78b45fb38c55e6116faf97e68cc95607f0f7d46342c60aeed1854c08d

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

    Filesize

    50KB

    MD5

    5a50464c91366accd9f9f0568edf14da

    SHA1

    fee195fbe47d8132382da416ea986c6cd11ed2e2

    SHA256

    71f3d1dc7a220507a58667f0cf9ad87a008dc774df635921194d7942f8a55c1d

    SHA512

    5ffb8b1800260e21740167a149bf78733e298921fe076b192614841c25ae725bb8a428a78b45fb38c55e6116faf97e68cc95607f0f7d46342c60aeed1854c08d

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

    Filesize

    315B

    MD5

    a34ac19f4afae63adc5d2f7bc970c07f

    SHA1

    a82190fc530c265aa40a045c21770d967f4767b8

    SHA256

    d5a89e26beae0bc03ad18a0b0d1d3d75f87c32047879d25da11970cb5c4662a3

    SHA512

    42e53d96e5961e95b7a984d9c9778a1d3bd8ee0c87b8b3b515fa31f67c2d073c8565afc2f4b962c43668c4efa1e478da9bb0ecffa79479c7e880731bc4c55765

  • memory/1536-152-0x0000000000510000-0x0000000000516000-memory.dmp

    Filesize

    24KB

  • memory/1536-153-0x00000000004D0000-0x00000000004D6000-memory.dmp

    Filesize

    24KB

  • memory/1536-181-0x0000000000500000-0x000000000050F000-memory.dmp

    Filesize

    60KB

  • memory/3628-133-0x0000000000500000-0x000000000050F000-memory.dmp

    Filesize

    60KB

  • memory/3628-134-0x00000000007B0000-0x00000000007B6000-memory.dmp

    Filesize

    24KB

  • memory/3628-135-0x00000000007B0000-0x00000000007B6000-memory.dmp

    Filesize

    24KB

  • memory/3628-136-0x00000000007D0000-0x00000000007D6000-memory.dmp

    Filesize

    24KB

  • memory/3628-150-0x0000000000500000-0x000000000050F000-memory.dmp

    Filesize

    60KB