Analysis

  • max time kernel
    94s
  • max time network
    96s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20241007-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20241007-enlocale:en-usos:windows10-2004-x64system
  • submitted
    09-10-2024 00:02

General

  • Target

    2024-10-08_ce8d1a0629bb5b6bbb76f298306e2d1a_cryptolocker.exe

  • Size

    87KB

  • MD5

    ce8d1a0629bb5b6bbb76f298306e2d1a

  • SHA1

    8e13f4c57283ad10fafa220613258e3b6eda7d81

  • SHA256

    b06ae749613b0991e4e0f811a82cfe285182d007b712fae952dfcf8cb03aa01c

  • SHA512

    dbd38486748b5d0c563298c04d792987a417527cfdd2a2069970580378b62fcfbb546ce302b8ac32faf94adb127a0933656d2e4810d4ea280edfadbe7ca0eef2

  • SSDEEP

    1536:zj+soPSMOtEvwDpj4ktBl01hJl8QAPM8Ho6cRDjv:zCsanOtEvwDpju

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 6 IoCs
  • Suspicious use of WriteProcessMemory 3 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\2024-10-08_ce8d1a0629bb5b6bbb76f298306e2d1a_cryptolocker.exe
    "C:\Users\Admin\AppData\Local\Temp\2024-10-08_ce8d1a0629bb5b6bbb76f298306e2d1a_cryptolocker.exe"
    1⤵
    • Checks computer location settings
    • System Location Discovery: System Language Discovery
    • Suspicious use of WriteProcessMemory
    PID:1496
    • 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:3424

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

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Downloads

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

    Filesize

    87KB

    MD5

    54e2608305cc0b41d24e2251e9e2f8c2

    SHA1

    d9be8d68e1111a7778bdb4bc5623bf5405d85c58

    SHA256

    dba32a621f6ec5809fb04aa94400f4b79609611b43e18bcb20c2ca2702fe75cb

    SHA512

    1cb8906e00a3d993d8ba920a3f78125fd5490a8089ad2f98280a0fa89d22679a2e3701d1a1ddb24353abe4d5b57c3134ef28fa7c19c0a573d7a58be00578c8e5

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

    Filesize

    315B

    MD5

    a34ac19f4afae63adc5d2f7bc970c07f

    SHA1

    a82190fc530c265aa40a045c21770d967f4767b8

    SHA256

    d5a89e26beae0bc03ad18a0b0d1d3d75f87c32047879d25da11970cb5c4662a3

    SHA512

    42e53d96e5961e95b7a984d9c9778a1d3bd8ee0c87b8b3b515fa31f67c2d073c8565afc2f4b962c43668c4efa1e478da9bb0ecffa79479c7e880731bc4c55765

  • memory/1496-0-0x0000000000500000-0x0000000000510000-memory.dmp

    Filesize

    64KB

  • memory/1496-1-0x00000000021C0000-0x00000000021C6000-memory.dmp

    Filesize

    24KB

  • memory/1496-2-0x00000000021C0000-0x00000000021C6000-memory.dmp

    Filesize

    24KB

  • memory/1496-3-0x00000000020E0000-0x00000000020E6000-memory.dmp

    Filesize

    24KB

  • memory/1496-17-0x0000000000500000-0x0000000000510000-memory.dmp

    Filesize

    64KB

  • memory/3424-19-0x00000000006B0000-0x00000000006B6000-memory.dmp

    Filesize

    24KB

  • memory/3424-20-0x00000000006D0000-0x00000000006D6000-memory.dmp

    Filesize

    24KB

  • memory/3424-48-0x0000000000500000-0x0000000000510000-memory.dmp

    Filesize

    64KB