Analysis

  • max time kernel
    140s
  • max time network
    126s
  • 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 15:25

General

  • Target

    2024-10-17_1ec9c0d3bb032975a5fa05b282101f04_cryptolocker.exe

  • Size

    77KB

  • MD5

    1ec9c0d3bb032975a5fa05b282101f04

  • SHA1

    0e4ae7d21be574406b7822bf4808fef8dc041231

  • SHA256

    c6383c07f6d54e1063617a402f8d1c4d8d92d15309f5b8ddff17df285140beb5

  • SHA512

    07bb55ea83b3cd8ff3b641ea0f15cbc034e04bf0055ad3836ee2f2846c6de60d98e4fc4638f26e4b86ec200a513433b7d0fc0e0ff58700e1e0ddc4a7fcacb118

  • SSDEEP

    768:zQz7yVEhs9+syJP6ntOOtEvwDpjFelaB7pBlqrr1HBJooSeKzu1adyB/n:zj+soPSMOtEvwDpj4ktBl01hJ0tq1ky5

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\2024-10-17_1ec9c0d3bb032975a5fa05b282101f04_cryptolocker.exe
    "C:\Users\Admin\AppData\Local\Temp\2024-10-17_1ec9c0d3bb032975a5fa05b282101f04_cryptolocker.exe"
    1⤵
    • Checks computer location settings
    • System Location Discovery: System Language Discovery
    • Suspicious use of WriteProcessMemory
    PID:440
    • 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:2844

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

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Downloads

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

    Filesize

    77KB

    MD5

    93cb76eba17cb42543ace7eb8591633d

    SHA1

    e8911ceda3f803c340d7c5a9c6a90ad7f2146c35

    SHA256

    d61fba6e61ca5c3a21d2e03257c281edbcc9cddccef541a422d91ce72db51941

    SHA512

    44d6369aa6f7202e20e4577ee636d8da34455fdd91e8579bf86259408755447b4909b3a4421f3725a83d5c372e527fd9e18c90e9ebcaf8f79b61a4a1440bb75a

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

    Filesize

    315B

    MD5

    a34ac19f4afae63adc5d2f7bc970c07f

    SHA1

    a82190fc530c265aa40a045c21770d967f4767b8

    SHA256

    d5a89e26beae0bc03ad18a0b0d1d3d75f87c32047879d25da11970cb5c4662a3

    SHA512

    42e53d96e5961e95b7a984d9c9778a1d3bd8ee0c87b8b3b515fa31f67c2d073c8565afc2f4b962c43668c4efa1e478da9bb0ecffa79479c7e880731bc4c55765

  • memory/440-0-0x0000000000500000-0x0000000000510000-memory.dmp

    Filesize

    64KB

  • memory/440-2-0x00000000006A0000-0x00000000006A6000-memory.dmp

    Filesize

    24KB

  • memory/440-1-0x00000000006A0000-0x00000000006A6000-memory.dmp

    Filesize

    24KB

  • memory/440-3-0x00000000006C0000-0x00000000006C6000-memory.dmp

    Filesize

    24KB

  • memory/440-17-0x0000000000500000-0x0000000000510000-memory.dmp

    Filesize

    64KB

  • memory/2844-19-0x00000000005D0000-0x00000000005D6000-memory.dmp

    Filesize

    24KB

  • memory/2844-25-0x00000000005A0000-0x00000000005A6000-memory.dmp

    Filesize

    24KB

  • memory/2844-48-0x0000000000500000-0x0000000000510000-memory.dmp

    Filesize

    64KB