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Analysis

  • max time kernel
    142s
  • max time network
    151s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20230703-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20230703-enlocale:en-usos:windows10-2004-x64system
  • submitted
    02/08/2023, 18:32

General

  • Target

    414d9a928f8967c5a91bf5d0133c97ed_cryptolocker_JC.exe

  • Size

    87KB

  • MD5

    414d9a928f8967c5a91bf5d0133c97ed

  • SHA1

    41e1f407520068f4c8f0e20b4c59a448cf77f4c1

  • SHA256

    3884e4e961a49ecffdf7bf2d0bb4bbbb10e758059a5a2e15f2c66975fd9b004a

  • SHA512

    5f265aadb587cae7d034911ee1ba2c20d71549d1666d0eb8b61a96ff2be7180bf9bafc2db5f6ecd56a5f2861085c8a8788bf8c8fca6213b48765c773bf465b04

  • SSDEEP

    1536:zj+soPSMOtEvwDpj4ktBl01hJl8QAPM8Ho6cRDjF:zCsanOtEvwDpjw

Score
7/10
upx

Malware Config

Signatures

  • Executes dropped EXE 1 IoCs
  • UPX packed file 6 IoCs

    Detects executables packed with UPX/modified UPX open source packer.

  • 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\414d9a928f8967c5a91bf5d0133c97ed_cryptolocker_JC.exe
    "C:\Users\Admin\AppData\Local\Temp\414d9a928f8967c5a91bf5d0133c97ed_cryptolocker_JC.exe"
    1⤵
    • Suspicious use of WriteProcessMemory
    PID:4456
    • 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:2800

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

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Downloads

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

    Filesize

    88KB

    MD5

    9b09a941d82792f72a313668d916654f

    SHA1

    6034168c3447449f6a4e0da92f96ad3dba56d44e

    SHA256

    d0e5aa1d32c707c5fab3865cdb633bda832c5de93c551633805d3776c0305174

    SHA512

    810a8da2a74aefa79a03f0a8a8de2c5ab93e6ac4fc23e689b4a9e4e4cb53c0b31427bcb4794e0a72a17276f497b7a18f089e043142c2b2e9f7515a0fdee6c65e

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

    Filesize

    88KB

    MD5

    9b09a941d82792f72a313668d916654f

    SHA1

    6034168c3447449f6a4e0da92f96ad3dba56d44e

    SHA256

    d0e5aa1d32c707c5fab3865cdb633bda832c5de93c551633805d3776c0305174

    SHA512

    810a8da2a74aefa79a03f0a8a8de2c5ab93e6ac4fc23e689b4a9e4e4cb53c0b31427bcb4794e0a72a17276f497b7a18f089e043142c2b2e9f7515a0fdee6c65e

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

    Filesize

    88KB

    MD5

    9b09a941d82792f72a313668d916654f

    SHA1

    6034168c3447449f6a4e0da92f96ad3dba56d44e

    SHA256

    d0e5aa1d32c707c5fab3865cdb633bda832c5de93c551633805d3776c0305174

    SHA512

    810a8da2a74aefa79a03f0a8a8de2c5ab93e6ac4fc23e689b4a9e4e4cb53c0b31427bcb4794e0a72a17276f497b7a18f089e043142c2b2e9f7515a0fdee6c65e

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

    Filesize

    315B

    MD5

    a34ac19f4afae63adc5d2f7bc970c07f

    SHA1

    a82190fc530c265aa40a045c21770d967f4767b8

    SHA256

    d5a89e26beae0bc03ad18a0b0d1d3d75f87c32047879d25da11970cb5c4662a3

    SHA512

    42e53d96e5961e95b7a984d9c9778a1d3bd8ee0c87b8b3b515fa31f67c2d073c8565afc2f4b962c43668c4efa1e478da9bb0ecffa79479c7e880731bc4c55765

  • memory/2800-152-0x0000000001F70000-0x0000000001F76000-memory.dmp

    Filesize

    24KB

  • memory/2800-153-0x0000000001F50000-0x0000000001F56000-memory.dmp

    Filesize

    24KB

  • memory/2800-181-0x0000000000500000-0x0000000000510000-memory.dmp

    Filesize

    64KB

  • memory/4456-133-0x0000000000500000-0x0000000000510000-memory.dmp

    Filesize

    64KB

  • memory/4456-134-0x00000000005A0000-0x00000000005A6000-memory.dmp

    Filesize

    24KB

  • memory/4456-135-0x00000000005A0000-0x00000000005A6000-memory.dmp

    Filesize

    24KB

  • memory/4456-136-0x0000000002230000-0x0000000002236000-memory.dmp

    Filesize

    24KB

  • memory/4456-150-0x0000000000500000-0x0000000000510000-memory.dmp

    Filesize

    64KB