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Analysis

  • max time kernel
    150s
  • max time network
    149s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20240611-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20240611-enlocale:en-usos:windows10-2004-x64system
  • submitted
    15/06/2024, 16:54

General

  • Target

    20240615470b0a94189b7d7a21bcbb38f3189ac9cryptolocker.exe

  • Size

    90KB

  • MD5

    470b0a94189b7d7a21bcbb38f3189ac9

  • SHA1

    4c5b400a45b5d71ec08f0a8765b7d1f024a0c77d

  • SHA256

    5814d699030051e99f892bf70995bb6a453f5813288aa18e9c03fc48d11d1395

  • SHA512

    efa9e27eadf2f4e1641a85d8ba2c785501e88e7d7b578b6c3534e63e282d1d1016dd4330f15ed8d6119852c8e3cc2e6a8020a8c8982a4f9781a736ccd7304f53

  • SSDEEP

    1536:zj+soPSMOtEvwDpj4ktBl01hJl8QAPM8Ho6cRMy8tyblR:zCsanOtEvwDpjK

Score
7/10
upx

Malware Config

Signatures

  • Checks computer location settings 2 TTPs 2 IoCs

    Looks up country code configured in the registry, likely geofence.

  • Executes dropped EXE 1 IoCs
  • UPX packed file 4 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 10 IoCs
  • Suspicious use of WriteProcessMemory 3 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\20240615470b0a94189b7d7a21bcbb38f3189ac9cryptolocker.exe
    "C:\Users\Admin\AppData\Local\Temp\20240615470b0a94189b7d7a21bcbb38f3189ac9cryptolocker.exe"
    1⤵
    • Checks computer location settings
    • Suspicious use of WriteProcessMemory
    PID:992
    • C:\Users\Admin\AppData\Local\Temp\misid.exe
      "C:\Users\Admin\AppData\Local\Temp\misid.exe"
      2⤵
      • Checks computer location settings
      • Executes dropped EXE
      • Modifies system certificate store
      PID:804

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

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Downloads

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

    Filesize

    90KB

    MD5

    11eb493ace410d4c2e93fb0fcb52adeb

    SHA1

    e849becb98a89b32768aeface6e7a9a4f24a82c6

    SHA256

    ac40c0d682370d40534f9ca2d0fe0e6e2d356d70d0bb95e11c8b29c1c20750dc

    SHA512

    15c849109a02885586bd97738ec41ec2fc6e002a430a610f301de892bdc416ef2cf6fc599aadc3aa4eef65fa2a59d7e7821440266ca69fe2a24a2687e8411416

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

    Filesize

    315B

    MD5

    a34ac19f4afae63adc5d2f7bc970c07f

    SHA1

    a82190fc530c265aa40a045c21770d967f4767b8

    SHA256

    d5a89e26beae0bc03ad18a0b0d1d3d75f87c32047879d25da11970cb5c4662a3

    SHA512

    42e53d96e5961e95b7a984d9c9778a1d3bd8ee0c87b8b3b515fa31f67c2d073c8565afc2f4b962c43668c4efa1e478da9bb0ecffa79479c7e880731bc4c55765

  • memory/804-19-0x0000000002050000-0x0000000002056000-memory.dmp

    Filesize

    24KB

  • memory/804-25-0x00000000021E0000-0x00000000021E6000-memory.dmp

    Filesize

    24KB

  • memory/804-46-0x0000000000500000-0x0000000000510000-memory.dmp

    Filesize

    64KB

  • memory/992-0-0x0000000000500000-0x0000000000510000-memory.dmp

    Filesize

    64KB

  • memory/992-1-0x00000000004D0000-0x00000000004D6000-memory.dmp

    Filesize

    24KB

  • memory/992-2-0x00000000004F0000-0x00000000004F6000-memory.dmp

    Filesize

    24KB

  • memory/992-9-0x00000000004D0000-0x00000000004D6000-memory.dmp

    Filesize

    24KB

  • memory/992-17-0x0000000000500000-0x0000000000510000-memory.dmp

    Filesize

    64KB