Analysis

  • max time kernel
    95s
  • max time network
    125s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20240802-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20240802-enlocale:en-usos:windows10-2004-x64system
  • submitted
    19/09/2024, 03:29

General

  • Target

    2024-09-19_63d78e160bf41f906846dc1a714f421f_cryptolocker.exe

  • Size

    90KB

  • MD5

    63d78e160bf41f906846dc1a714f421f

  • SHA1

    4ce14e546020e510034dba6425da847402bd8725

  • SHA256

    b9021e743cc780c164a915517613654e33ef7f9a3edbd1c854f9f1690e6be1db

  • SHA512

    fee242f38319ffbd70689f95337d92b568a90691e8a748415ab76e5dd84dfc83fe55d4d928589ab5d4d1896be4ec15a7f58f5673be9dfcf5afe724ac0329004c

  • SSDEEP

    1536:zj+soPSMOtEvwDpj4ktBl01hJl8QAPM8Ho6cRMy8tyblJ:zCsanOtEvwDpjC

Score
7/10

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).

  • System Location Discovery: System Language Discovery 1 TTPs 2 IoCs

    Attempt gather information about the system language of a victim in order to infer the geographical location of that host.

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

Processes

  • C:\Users\Admin\AppData\Local\Temp\2024-09-19_63d78e160bf41f906846dc1a714f421f_cryptolocker.exe
    "C:\Users\Admin\AppData\Local\Temp\2024-09-19_63d78e160bf41f906846dc1a714f421f_cryptolocker.exe"
    1⤵
    • Checks computer location settings
    • System Location Discovery: System Language Discovery
    • Suspicious use of WriteProcessMemory
    PID:2092
    • C:\Users\Admin\AppData\Local\Temp\misid.exe
      "C:\Users\Admin\AppData\Local\Temp\misid.exe"
      2⤵
      • Checks computer location settings
      • Executes dropped EXE
      • System Location Discovery: System Language Discovery
      • Modifies system certificate store
      PID:4464

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

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Downloads

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

    Filesize

    90KB

    MD5

    6c4fdb31f65c633363df6a70094cd622

    SHA1

    56c76709e94e6432081e46a0ebedb90d4e980ff9

    SHA256

    17219efabf958628786df8bb249a4c4f8fef4a8bda9b740e3ab63d199688d445

    SHA512

    af3d1e182db5e3d1f11bfe41051f53fe2b36ee8cb7b2de68bde64c89cc228a16dd52a50154d894cb36b166b6fb4e6e26eb7ef891dad89c61f4e5200dd6a461d3

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

    Filesize

    315B

    MD5

    a34ac19f4afae63adc5d2f7bc970c07f

    SHA1

    a82190fc530c265aa40a045c21770d967f4767b8

    SHA256

    d5a89e26beae0bc03ad18a0b0d1d3d75f87c32047879d25da11970cb5c4662a3

    SHA512

    42e53d96e5961e95b7a984d9c9778a1d3bd8ee0c87b8b3b515fa31f67c2d073c8565afc2f4b962c43668c4efa1e478da9bb0ecffa79479c7e880731bc4c55765

  • memory/2092-0-0x0000000000500000-0x0000000000510000-memory.dmp

    Filesize

    64KB

  • memory/2092-1-0x00000000005C0000-0x00000000005C6000-memory.dmp

    Filesize

    24KB

  • memory/2092-2-0x00000000005C0000-0x00000000005C6000-memory.dmp

    Filesize

    24KB

  • memory/2092-3-0x00000000005E0000-0x00000000005E6000-memory.dmp

    Filesize

    24KB

  • memory/2092-17-0x0000000000500000-0x0000000000510000-memory.dmp

    Filesize

    64KB

  • memory/4464-19-0x00000000005D0000-0x00000000005D6000-memory.dmp

    Filesize

    24KB

  • memory/4464-25-0x00000000005B0000-0x00000000005B6000-memory.dmp

    Filesize

    24KB

  • memory/4464-48-0x0000000000500000-0x0000000000510000-memory.dmp

    Filesize

    64KB