Analysis

  • max time kernel
    148s
  • max time network
    150s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20241007-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20241007-enlocale:en-usos:windows10-2004-x64system
  • submitted
    17/10/2024, 20:28

General

  • Target

    2024-10-17_390d53925e1b5a7d326067ed78cf7e6a_cryptolocker.exe

  • Size

    84KB

  • MD5

    390d53925e1b5a7d326067ed78cf7e6a

  • SHA1

    483e116d9fc5adfa6b4a4f5858ee2ff16f55f791

  • SHA256

    9d7a0670164d9499a38ab85d505d04958bb046d85f367f02dc0402639faac743

  • SHA512

    9bef7372b4a76318809b2c3d9c43e38db99ebedddf427d965d4293fbb12883378b096e8e0cd3f39df94c63b8a155305bc7bea871a74e620b7fcb87c366683863

  • SSDEEP

    1536:zj+soPSMOtEvwDpj4ktBl01hJl8QAPM8Ho6cRMf:zCsanOtEvwDpjJ

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 5 IoCs
  • Suspicious use of WriteProcessMemory 3 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\2024-10-17_390d53925e1b5a7d326067ed78cf7e6a_cryptolocker.exe
    "C:\Users\Admin\AppData\Local\Temp\2024-10-17_390d53925e1b5a7d326067ed78cf7e6a_cryptolocker.exe"
    1⤵
    • Checks computer location settings
    • System Location Discovery: System Language Discovery
    • Suspicious use of WriteProcessMemory
    PID:1068
    • 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:2636

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

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Downloads

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

    Filesize

    84KB

    MD5

    30cb60624790d622c8c7395de09e1386

    SHA1

    287b7b84a1f46e8ffba050ad6a33dcf0179fd6ea

    SHA256

    5f3bc58cb984d1bee9b45dfa789e15389083f10da468657e3b1fc2c6ea7b8d5f

    SHA512

    3cd8b19a7010e63e36415d3dc2ff7fec2030bb19ef01d76e053113e15022e3537c1c90ff3ff8a56abb5cba4b6a3255f81dd127d79ec7d6516cd56bd9da74a3c8

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

    Filesize

    315B

    MD5

    a34ac19f4afae63adc5d2f7bc970c07f

    SHA1

    a82190fc530c265aa40a045c21770d967f4767b8

    SHA256

    d5a89e26beae0bc03ad18a0b0d1d3d75f87c32047879d25da11970cb5c4662a3

    SHA512

    42e53d96e5961e95b7a984d9c9778a1d3bd8ee0c87b8b3b515fa31f67c2d073c8565afc2f4b962c43668c4efa1e478da9bb0ecffa79479c7e880731bc4c55765

  • memory/1068-0-0x0000000000500000-0x0000000000510000-memory.dmp

    Filesize

    64KB

  • memory/1068-1-0x00000000006B0000-0x00000000006B6000-memory.dmp

    Filesize

    24KB

  • memory/1068-2-0x00000000006B0000-0x00000000006B6000-memory.dmp

    Filesize

    24KB

  • memory/1068-3-0x00000000006D0000-0x00000000006D6000-memory.dmp

    Filesize

    24KB

  • memory/1068-18-0x0000000000500000-0x0000000000510000-memory.dmp

    Filesize

    64KB

  • memory/2636-19-0x00000000004F0000-0x00000000004F6000-memory.dmp

    Filesize

    24KB

  • memory/2636-25-0x00000000004D0000-0x00000000004D6000-memory.dmp

    Filesize

    24KB

  • memory/2636-48-0x0000000000500000-0x0000000000510000-memory.dmp

    Filesize

    64KB